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googletest/test/gmock-matchers_test.cc

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// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)
// Google Mock - a framework for writing C++ mock classes.
//
// This file tests some commonly used argument matchers.
#include <gmock/gmock-matchers.h>
#include <string.h>
#include <functional>
#include <list>
#include <map>
#include <set>
#include <sstream>
#include <string>
#include <vector>
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <gtest/gtest-spi.h>
namespace testing {
namespace internal {
string FormatMatcherDescriptionSyntaxError(const char* description,
const char* error_pos);
int GetParamIndex(const char* param_names[], const string& param_name);
string JoinAsTuple(const Strings& fields);
bool SkipPrefix(const char* prefix, const char** pstr);
} // namespace internal
namespace gmock_matchers_test {
using std::map;
using std::multimap;
using std::stringstream;
using std::tr1::make_tuple;
using testing::A;
using testing::AllArgs;
using testing::AllOf;
using testing::An;
using testing::AnyOf;
using testing::ByRef;
using testing::DoubleEq;
using testing::EndsWith;
using testing::Eq;
using testing::Field;
using testing::FloatEq;
using testing::Ge;
using testing::Gt;
using testing::HasSubstr;
using testing::Key;
using testing::Le;
using testing::Lt;
using testing::MakeMatcher;
using testing::MakePolymorphicMatcher;
using testing::Matcher;
using testing::MatcherCast;
using testing::MatcherInterface;
using testing::Matches;
using testing::NanSensitiveDoubleEq;
using testing::NanSensitiveFloatEq;
using testing::Ne;
using testing::Not;
using testing::NotNull;
using testing::Pointee;
using testing::PolymorphicMatcher;
using testing::Property;
using testing::Ref;
using testing::ResultOf;
using testing::StartsWith;
using testing::StrCaseEq;
using testing::StrCaseNe;
using testing::StrEq;
using testing::StrNe;
using testing::Truly;
using testing::TypedEq;
using testing::Value;
using testing::_;
using testing::internal::FloatingEqMatcher;
using testing::internal::FormatMatcherDescriptionSyntaxError;
using testing::internal::GetParamIndex;
using testing::internal::Interpolation;
using testing::internal::Interpolations;
using testing::internal::JoinAsTuple;
using testing::internal::SkipPrefix;
using testing::internal::String;
using testing::internal::Strings;
using testing::internal::ValidateMatcherDescription;
using testing::internal::kInvalidInterpolation;
using testing::internal::kPercentInterpolation;
using testing::internal::kTupleInterpolation;
using testing::internal::string;
#ifdef GMOCK_HAS_REGEX
using testing::ContainsRegex;
using testing::MatchesRegex;
using testing::internal::RE;
#endif // GMOCK_HAS_REGEX
// Returns the description of the given matcher.
template <typename T>
string Describe(const Matcher<T>& m) {
stringstream ss;
m.DescribeTo(&ss);
return ss.str();
}
// Returns the description of the negation of the given matcher.
template <typename T>
string DescribeNegation(const Matcher<T>& m) {
stringstream ss;
m.DescribeNegationTo(&ss);
return ss.str();
}
// Returns the reason why x matches, or doesn't match, m.
template <typename MatcherType, typename Value>
string Explain(const MatcherType& m, const Value& x) {
stringstream ss;
m.ExplainMatchResultTo(x, &ss);
return ss.str();
}
// Makes sure that the MatcherInterface<T> interface doesn't
// change.
class EvenMatcherImpl : public MatcherInterface<int> {
public:
virtual bool Matches(int x) const { return x % 2 == 0; }
virtual void DescribeTo(::std::ostream* os) const {
*os << "is an even number";
}
// We deliberately don't define DescribeNegationTo() and
// ExplainMatchResultTo() here, to make sure the definition of these
// two methods is optional.
};
TEST(MatcherInterfaceTest, CanBeImplemented) {
EvenMatcherImpl m;
}
// Tests default-constructing a matcher.
TEST(MatcherTest, CanBeDefaultConstructed) {
Matcher<double> m;
}
// Tests that Matcher<T> can be constructed from a MatcherInterface<T>*.
TEST(MatcherTest, CanBeConstructedFromMatcherInterface) {
const MatcherInterface<int>* impl = new EvenMatcherImpl;
Matcher<int> m(impl);
EXPECT_TRUE(m.Matches(4));
EXPECT_FALSE(m.Matches(5));
}
// Tests that value can be used in place of Eq(value).
TEST(MatcherTest, CanBeImplicitlyConstructedFromValue) {
Matcher<int> m1 = 5;
EXPECT_TRUE(m1.Matches(5));
EXPECT_FALSE(m1.Matches(6));
}
// Tests that NULL can be used in place of Eq(NULL).
TEST(MatcherTest, CanBeImplicitlyConstructedFromNULL) {
Matcher<int*> m1 = NULL;
EXPECT_TRUE(m1.Matches(NULL));
int n = 0;
EXPECT_FALSE(m1.Matches(&n));
}
// Tests that matchers are copyable.
TEST(MatcherTest, IsCopyable) {
// Tests the copy constructor.
Matcher<bool> m1 = Eq(false);
EXPECT_TRUE(m1.Matches(false));
EXPECT_FALSE(m1.Matches(true));
// Tests the assignment operator.
m1 = Eq(true);
EXPECT_TRUE(m1.Matches(true));
EXPECT_FALSE(m1.Matches(false));
}
// Tests that Matcher<T>::DescribeTo() calls
// MatcherInterface<T>::DescribeTo().
TEST(MatcherTest, CanDescribeItself) {
EXPECT_EQ("is an even number",
Describe(Matcher<int>(new EvenMatcherImpl)));
}
// Tests that a C-string literal can be implicitly converted to a
// Matcher<string> or Matcher<const string&>.
TEST(StringMatcherTest, CanBeImplicitlyConstructedFromCStringLiteral) {
Matcher<string> m1 = "hi";
EXPECT_TRUE(m1.Matches("hi"));
EXPECT_FALSE(m1.Matches("hello"));
Matcher<const string&> m2 = "hi";
EXPECT_TRUE(m2.Matches("hi"));
EXPECT_FALSE(m2.Matches("hello"));
}
// Tests that a string object can be implicitly converted to a
// Matcher<string> or Matcher<const string&>.
TEST(StringMatcherTest, CanBeImplicitlyConstructedFromString) {
Matcher<string> m1 = string("hi");
EXPECT_TRUE(m1.Matches("hi"));
EXPECT_FALSE(m1.Matches("hello"));
Matcher<const string&> m2 = string("hi");
EXPECT_TRUE(m2.Matches("hi"));
EXPECT_FALSE(m2.Matches("hello"));
}
// Tests that MakeMatcher() constructs a Matcher<T> from a
// MatcherInterface* without requiring the user to explicitly
// write the type.
TEST(MakeMatcherTest, ConstructsMatcherFromMatcherInterface) {
const MatcherInterface<int>* dummy_impl = NULL;
Matcher<int> m = MakeMatcher(dummy_impl);
}
// Tests that MakePolymorphicMatcher() constructs a polymorphic
// matcher from its implementation.
const int bar = 1;
class ReferencesBarOrIsZeroImpl {
public:
template <typename T>
bool Matches(const T& x) const {
const void* p = &x;
return p == &bar || x == 0;
}
void DescribeTo(::std::ostream* os) const { *os << "bar or zero"; }
void DescribeNegationTo(::std::ostream* os) const {
*os << "doesn't reference bar and is not zero";
}
};
// This function verifies that MakePolymorphicMatcher() returns a
// PolymorphicMatcher<T> where T is the argument's type.
PolymorphicMatcher<ReferencesBarOrIsZeroImpl> ReferencesBarOrIsZero() {
return MakePolymorphicMatcher(ReferencesBarOrIsZeroImpl());
}
TEST(MakePolymorphicMatcherTest, ConstructsMatcherFromImpl) {
// Using a polymorphic matcher to match a reference type.
Matcher<const int&> m1 = ReferencesBarOrIsZero();
EXPECT_TRUE(m1.Matches(0));
// Verifies that the identity of a by-reference argument is preserved.
EXPECT_TRUE(m1.Matches(bar));
EXPECT_FALSE(m1.Matches(1));
EXPECT_EQ("bar or zero", Describe(m1));
// Using a polymorphic matcher to match a value type.
Matcher<double> m2 = ReferencesBarOrIsZero();
EXPECT_TRUE(m2.Matches(0.0));
EXPECT_FALSE(m2.Matches(0.1));
EXPECT_EQ("bar or zero", Describe(m2));
}
// Tests that MatcherCast<T>(m) works when m is a polymorphic matcher.
TEST(MatcherCastTest, FromPolymorphicMatcher) {
Matcher<int> m = MatcherCast<int>(Eq(5));
EXPECT_TRUE(m.Matches(5));
EXPECT_FALSE(m.Matches(6));
}
// For testing casting matchers between compatible types.
class IntValue {
public:
// An int can be statically (although not implicitly) cast to a
// IntValue.
explicit IntValue(int value) : value_(value) {}
int value() const { return value_; }
private:
int value_;
};
// For testing casting matchers between compatible types.
bool IsPositiveIntValue(const IntValue& foo) {
return foo.value() > 0;
}
// Tests that MatcherCast<T>(m) works when m is a Matcher<U> where T
// can be statically converted to U.
TEST(MatcherCastTest, FromCompatibleType) {
Matcher<double> m1 = Eq(2.0);
Matcher<int> m2 = MatcherCast<int>(m1);
EXPECT_TRUE(m2.Matches(2));
EXPECT_FALSE(m2.Matches(3));
Matcher<IntValue> m3 = Truly(IsPositiveIntValue);
Matcher<int> m4 = MatcherCast<int>(m3);
// In the following, the arguments 1 and 0 are statically converted
// to IntValue objects, and then tested by the IsPositiveIntValue()
// predicate.
EXPECT_TRUE(m4.Matches(1));
EXPECT_FALSE(m4.Matches(0));
}
// Tests that MatcherCast<T>(m) works when m is a Matcher<const T&>.
TEST(MatcherCastTest, FromConstReferenceToNonReference) {
Matcher<const int&> m1 = Eq(0);
Matcher<int> m2 = MatcherCast<int>(m1);
EXPECT_TRUE(m2.Matches(0));
EXPECT_FALSE(m2.Matches(1));
}
// Tests that MatcherCast<T>(m) works when m is a Matcher<T&>.
TEST(MatcherCastTest, FromReferenceToNonReference) {
Matcher<int&> m1 = Eq(0);
Matcher<int> m2 = MatcherCast<int>(m1);
EXPECT_TRUE(m2.Matches(0));
EXPECT_FALSE(m2.Matches(1));
}
// Tests that MatcherCast<const T&>(m) works when m is a Matcher<T>.
TEST(MatcherCastTest, FromNonReferenceToConstReference) {
Matcher<int> m1 = Eq(0);
Matcher<const int&> m2 = MatcherCast<const int&>(m1);
EXPECT_TRUE(m2.Matches(0));
EXPECT_FALSE(m2.Matches(1));
}
// Tests that MatcherCast<T&>(m) works when m is a Matcher<T>.
TEST(MatcherCastTest, FromNonReferenceToReference) {
Matcher<int> m1 = Eq(0);
Matcher<int&> m2 = MatcherCast<int&>(m1);
int n = 0;
EXPECT_TRUE(m2.Matches(n));
n = 1;
EXPECT_FALSE(m2.Matches(n));
}
// Tests that MatcherCast<T>(m) works when m is a Matcher<T>.
TEST(MatcherCastTest, FromSameType) {
Matcher<int> m1 = Eq(0);
Matcher<int> m2 = MatcherCast<int>(m1);
EXPECT_TRUE(m2.Matches(0));
EXPECT_FALSE(m2.Matches(1));
}
class Base {};
class Derived : public Base {};
// Tests that SafeMatcherCast<T>(m) works when m is a polymorphic matcher.
TEST(SafeMatcherCastTest, FromPolymorphicMatcher) {
Matcher<char> m2 = SafeMatcherCast<char>(Eq(32));
EXPECT_TRUE(m2.Matches(' '));
EXPECT_FALSE(m2.Matches('\n'));
}
// Tests that SafeMatcherCast<T>(m) works when m is a Matcher<U> where
// T and U are arithmetic types and T can be losslessly converted to
// U.
TEST(SafeMatcherCastTest, FromLosslesslyConvertibleArithmeticType) {
Matcher<double> m1 = DoubleEq(1.0);
Matcher<float> m2 = SafeMatcherCast<float>(m1);
EXPECT_TRUE(m2.Matches(1.0f));
EXPECT_FALSE(m2.Matches(2.0f));
Matcher<char> m3 = SafeMatcherCast<char>(TypedEq<int>('a'));
EXPECT_TRUE(m3.Matches('a'));
EXPECT_FALSE(m3.Matches('b'));
}
// Tests that SafeMatcherCast<T>(m) works when m is a Matcher<U> where T and U
// are pointers or references to a derived and a base class, correspondingly.
TEST(SafeMatcherCastTest, FromBaseClass) {
Derived d, d2;
Matcher<Base*> m1 = Eq(&d);
Matcher<Derived*> m2 = SafeMatcherCast<Derived*>(m1);
EXPECT_TRUE(m2.Matches(&d));
EXPECT_FALSE(m2.Matches(&d2));
Matcher<Base&> m3 = Ref(d);
Matcher<Derived&> m4 = SafeMatcherCast<Derived&>(m3);
EXPECT_TRUE(m4.Matches(d));
EXPECT_FALSE(m4.Matches(d2));
}
// Tests that SafeMatcherCast<T&>(m) works when m is a Matcher<const T&>.
TEST(SafeMatcherCastTest, FromConstReferenceToReference) {
int n = 0;
Matcher<const int&> m1 = Ref(n);
Matcher<int&> m2 = SafeMatcherCast<int&>(m1);
int n1 = 0;
EXPECT_TRUE(m2.Matches(n));
EXPECT_FALSE(m2.Matches(n1));
}
// Tests that MatcherCast<const T&>(m) works when m is a Matcher<T>.
TEST(SafeMatcherCastTest, FromNonReferenceToConstReference) {
Matcher<int> m1 = Eq(0);
Matcher<const int&> m2 = SafeMatcherCast<const int&>(m1);
EXPECT_TRUE(m2.Matches(0));
EXPECT_FALSE(m2.Matches(1));
}
// Tests that SafeMatcherCast<T&>(m) works when m is a Matcher<T>.
TEST(SafeMatcherCastTest, FromNonReferenceToReference) {
Matcher<int> m1 = Eq(0);
Matcher<int&> m2 = SafeMatcherCast<int&>(m1);
int n = 0;
EXPECT_TRUE(m2.Matches(n));
n = 1;
EXPECT_FALSE(m2.Matches(n));
}
// Tests that SafeMatcherCast<T>(m) works when m is a Matcher<T>.
TEST(SafeMatcherCastTest, FromSameType) {
Matcher<int> m1 = Eq(0);
Matcher<int> m2 = SafeMatcherCast<int>(m1);
EXPECT_TRUE(m2.Matches(0));
EXPECT_FALSE(m2.Matches(1));
}
// Tests that A<T>() matches any value of type T.
TEST(ATest, MatchesAnyValue) {
// Tests a matcher for a value type.
Matcher<double> m1 = A<double>();
EXPECT_TRUE(m1.Matches(91.43));
EXPECT_TRUE(m1.Matches(-15.32));
// Tests a matcher for a reference type.
int a = 2;
int b = -6;
Matcher<int&> m2 = A<int&>();
EXPECT_TRUE(m2.Matches(a));
EXPECT_TRUE(m2.Matches(b));
}
// Tests that A<T>() describes itself properly.
TEST(ATest, CanDescribeSelf) {
EXPECT_EQ("is anything", Describe(A<bool>()));
}
// Tests that An<T>() matches any value of type T.
TEST(AnTest, MatchesAnyValue) {
// Tests a matcher for a value type.
Matcher<int> m1 = An<int>();
EXPECT_TRUE(m1.Matches(9143));
EXPECT_TRUE(m1.Matches(-1532));
// Tests a matcher for a reference type.
int a = 2;
int b = -6;
Matcher<int&> m2 = An<int&>();
EXPECT_TRUE(m2.Matches(a));
EXPECT_TRUE(m2.Matches(b));
}
// Tests that An<T>() describes itself properly.
TEST(AnTest, CanDescribeSelf) {
EXPECT_EQ("is anything", Describe(An<int>()));
}
// Tests that _ can be used as a matcher for any type and matches any
// value of that type.
TEST(UnderscoreTest, MatchesAnyValue) {
// Uses _ as a matcher for a value type.
Matcher<int> m1 = _;
EXPECT_TRUE(m1.Matches(123));
EXPECT_TRUE(m1.Matches(-242));
// Uses _ as a matcher for a reference type.
bool a = false;
const bool b = true;
Matcher<const bool&> m2 = _;
EXPECT_TRUE(m2.Matches(a));
EXPECT_TRUE(m2.Matches(b));
}
// Tests that _ describes itself properly.
TEST(UnderscoreTest, CanDescribeSelf) {
Matcher<int> m = _;
EXPECT_EQ("is anything", Describe(m));
}
// Tests that Eq(x) matches any value equal to x.
TEST(EqTest, MatchesEqualValue) {
// 2 C-strings with same content but different addresses.
const char a1[] = "hi";
const char a2[] = "hi";
Matcher<const char*> m1 = Eq(a1);
EXPECT_TRUE(m1.Matches(a1));
EXPECT_FALSE(m1.Matches(a2));
}
// Tests that Eq(v) describes itself properly.
class Unprintable {
public:
Unprintable() : c_('a') {}
bool operator==(const Unprintable& rhs) { return true; }
private:
char c_;
};
TEST(EqTest, CanDescribeSelf) {
Matcher<Unprintable> m = Eq(Unprintable());
EXPECT_EQ("is equal to 1-byte object <61>", Describe(m));
}
// Tests that Eq(v) can be used to match any type that supports
// comparing with type T, where T is v's type.
TEST(EqTest, IsPolymorphic) {
Matcher<int> m1 = Eq(1);
EXPECT_TRUE(m1.Matches(1));
EXPECT_FALSE(m1.Matches(2));
Matcher<char> m2 = Eq(1);
EXPECT_TRUE(m2.Matches('\1'));
EXPECT_FALSE(m2.Matches('a'));
}
// Tests that TypedEq<T>(v) matches values of type T that's equal to v.
TEST(TypedEqTest, ChecksEqualityForGivenType) {
Matcher<char> m1 = TypedEq<char>('a');
EXPECT_TRUE(m1.Matches('a'));
EXPECT_FALSE(m1.Matches('b'));
Matcher<int> m2 = TypedEq<int>(6);
EXPECT_TRUE(m2.Matches(6));
EXPECT_FALSE(m2.Matches(7));
}
// Tests that TypedEq(v) describes itself properly.
TEST(TypedEqTest, CanDescribeSelf) {
EXPECT_EQ("is equal to 2", Describe(TypedEq<int>(2)));
}
// Tests that TypedEq<T>(v) has type Matcher<T>.
// Type<T>::IsTypeOf(v) compiles iff the type of value v is T, where T
// is a "bare" type (i.e. not in the form of const U or U&). If v's
// type is not T, the compiler will generate a message about
// "undefined referece".
template <typename T>
struct Type {
static bool IsTypeOf(const T& v) { return true; }
template <typename T2>
static void IsTypeOf(T2 v);
};
TEST(TypedEqTest, HasSpecifiedType) {
// Verfies that the type of TypedEq<T>(v) is Matcher<T>.
Type<Matcher<int> >::IsTypeOf(TypedEq<int>(5));
Type<Matcher<double> >::IsTypeOf(TypedEq<double>(5));
}
// Tests that Ge(v) matches anything >= v.
TEST(GeTest, ImplementsGreaterThanOrEqual) {
Matcher<int> m1 = Ge(0);
EXPECT_TRUE(m1.Matches(1));
EXPECT_TRUE(m1.Matches(0));
EXPECT_FALSE(m1.Matches(-1));
}
// Tests that Ge(v) describes itself properly.
TEST(GeTest, CanDescribeSelf) {
Matcher<int> m = Ge(5);
EXPECT_EQ("is greater than or equal to 5", Describe(m));
}
// Tests that Gt(v) matches anything > v.
TEST(GtTest, ImplementsGreaterThan) {
Matcher<double> m1 = Gt(0);
EXPECT_TRUE(m1.Matches(1.0));
EXPECT_FALSE(m1.Matches(0.0));
EXPECT_FALSE(m1.Matches(-1.0));
}
// Tests that Gt(v) describes itself properly.
TEST(GtTest, CanDescribeSelf) {
Matcher<int> m = Gt(5);
EXPECT_EQ("is greater than 5", Describe(m));
}
// Tests that Le(v) matches anything <= v.
TEST(LeTest, ImplementsLessThanOrEqual) {
Matcher<char> m1 = Le('b');
EXPECT_TRUE(m1.Matches('a'));
EXPECT_TRUE(m1.Matches('b'));
EXPECT_FALSE(m1.Matches('c'));
}
// Tests that Le(v) describes itself properly.
TEST(LeTest, CanDescribeSelf) {
Matcher<int> m = Le(5);
EXPECT_EQ("is less than or equal to 5", Describe(m));
}
// Tests that Lt(v) matches anything < v.
TEST(LtTest, ImplementsLessThan) {
Matcher<const string&> m1 = Lt("Hello");
EXPECT_TRUE(m1.Matches("Abc"));
EXPECT_FALSE(m1.Matches("Hello"));
EXPECT_FALSE(m1.Matches("Hello, world!"));
}
// Tests that Lt(v) describes itself properly.
TEST(LtTest, CanDescribeSelf) {
Matcher<int> m = Lt(5);
EXPECT_EQ("is less than 5", Describe(m));
}
// Tests that Ne(v) matches anything != v.
TEST(NeTest, ImplementsNotEqual) {
Matcher<int> m1 = Ne(0);
EXPECT_TRUE(m1.Matches(1));
EXPECT_TRUE(m1.Matches(-1));
EXPECT_FALSE(m1.Matches(0));
}
// Tests that Ne(v) describes itself properly.
TEST(NeTest, CanDescribeSelf) {
Matcher<int> m = Ne(5);
EXPECT_EQ("is not equal to 5", Describe(m));
}
// Tests that NotNull() matches any non-NULL pointer of any type.
TEST(NotNullTest, MatchesNonNullPointer) {
Matcher<int*> m1 = NotNull();
int* p1 = NULL;
int n = 0;
EXPECT_FALSE(m1.Matches(p1));
EXPECT_TRUE(m1.Matches(&n));
Matcher<const char*> m2 = NotNull();
const char* p2 = NULL;
EXPECT_FALSE(m2.Matches(p2));
EXPECT_TRUE(m2.Matches("hi"));
}
// Tests that NotNull() describes itself properly.
TEST(NotNullTest, CanDescribeSelf) {
Matcher<int*> m = NotNull();
EXPECT_EQ("is not NULL", Describe(m));
}
// Tests that Ref(variable) matches an argument that references
// 'variable'.
TEST(RefTest, MatchesSameVariable) {
int a = 0;
int b = 0;
Matcher<int&> m = Ref(a);
EXPECT_TRUE(m.Matches(a));
EXPECT_FALSE(m.Matches(b));
}
// Tests that Ref(variable) describes itself properly.
TEST(RefTest, CanDescribeSelf) {
int n = 5;
Matcher<int&> m = Ref(n);
stringstream ss;
ss << "references the variable @" << &n << " 5";
EXPECT_EQ(string(ss.str()), Describe(m));
}
// Test that Ref(non_const_varialbe) can be used as a matcher for a
// const reference.
TEST(RefTest, CanBeUsedAsMatcherForConstReference) {
int a = 0;
int b = 0;
Matcher<const int&> m = Ref(a);
EXPECT_TRUE(m.Matches(a));
EXPECT_FALSE(m.Matches(b));
}
// Tests that Ref(variable) is covariant, i.e. Ref(derived) can be
// used wherever Ref(base) can be used (Ref(derived) is a sub-type
// of Ref(base), but not vice versa.
TEST(RefTest, IsCovariant) {
Base base, base2;
Derived derived;
Matcher<const Base&> m1 = Ref(base);
EXPECT_TRUE(m1.Matches(base));
EXPECT_FALSE(m1.Matches(base2));
EXPECT_FALSE(m1.Matches(derived));
m1 = Ref(derived);
EXPECT_TRUE(m1.Matches(derived));
EXPECT_FALSE(m1.Matches(base));
EXPECT_FALSE(m1.Matches(base2));
}
// Tests string comparison matchers.
TEST(StrEqTest, MatchesEqualString) {
Matcher<const char*> m = StrEq(string("Hello"));
EXPECT_TRUE(m.Matches("Hello"));
EXPECT_FALSE(m.Matches("hello"));
EXPECT_FALSE(m.Matches(NULL));
Matcher<const string&> m2 = StrEq("Hello");
EXPECT_TRUE(m2.Matches("Hello"));
EXPECT_FALSE(m2.Matches("Hi"));
}
TEST(StrEqTest, CanDescribeSelf) {
Matcher<string> m = StrEq("Hi-\'\"\?\\\a\b\f\n\r\t\v\xD3");
EXPECT_EQ("is equal to \"Hi-\'\\\"\\?\\\\\\a\\b\\f\\n\\r\\t\\v\\xD3\"",
Describe(m));
string str("01204500800");
str[3] = '\0';
Matcher<string> m2 = StrEq(str);
EXPECT_EQ("is equal to \"012\\04500800\"", Describe(m2));
str[0] = str[6] = str[7] = str[9] = str[10] = '\0';
Matcher<string> m3 = StrEq(str);
EXPECT_EQ("is equal to \"\\012\\045\\0\\08\\0\\0\"", Describe(m3));
}
TEST(StrNeTest, MatchesUnequalString) {
Matcher<const char*> m = StrNe("Hello");
EXPECT_TRUE(m.Matches(""));
EXPECT_TRUE(m.Matches(NULL));
EXPECT_FALSE(m.Matches("Hello"));
Matcher<string> m2 = StrNe(string("Hello"));
EXPECT_TRUE(m2.Matches("hello"));
EXPECT_FALSE(m2.Matches("Hello"));
}
TEST(StrNeTest, CanDescribeSelf) {
Matcher<const char*> m = StrNe("Hi");
EXPECT_EQ("is not equal to \"Hi\"", Describe(m));
}
TEST(StrCaseEqTest, MatchesEqualStringIgnoringCase) {
Matcher<const char*> m = StrCaseEq(string("Hello"));
EXPECT_TRUE(m.Matches("Hello"));
EXPECT_TRUE(m.Matches("hello"));
EXPECT_FALSE(m.Matches("Hi"));
EXPECT_FALSE(m.Matches(NULL));
Matcher<const string&> m2 = StrCaseEq("Hello");
EXPECT_TRUE(m2.Matches("hello"));
EXPECT_FALSE(m2.Matches("Hi"));
}
TEST(StrCaseEqTest, MatchesEqualStringWith0IgnoringCase) {
string str1("oabocdooeoo");
string str2("OABOCDOOEOO");
Matcher<const string&> m0 = StrCaseEq(str1);
EXPECT_FALSE(m0.Matches(str2 + string(1, '\0')));
str1[3] = str2[3] = '\0';
Matcher<const string&> m1 = StrCaseEq(str1);
EXPECT_TRUE(m1.Matches(str2));
str1[0] = str1[6] = str1[7] = str1[10] = '\0';
str2[0] = str2[6] = str2[7] = str2[10] = '\0';
Matcher<const string&> m2 = StrCaseEq(str1);
str1[9] = str2[9] = '\0';
EXPECT_FALSE(m2.Matches(str2));
Matcher<const string&> m3 = StrCaseEq(str1);
EXPECT_TRUE(m3.Matches(str2));
EXPECT_FALSE(m3.Matches(str2 + "x"));
str2.append(1, '\0');
EXPECT_FALSE(m3.Matches(str2));
EXPECT_FALSE(m3.Matches(string(str2, 0, 9)));
}
TEST(StrCaseEqTest, CanDescribeSelf) {
Matcher<string> m = StrCaseEq("Hi");
EXPECT_EQ("is equal to (ignoring case) \"Hi\"", Describe(m));
}
TEST(StrCaseNeTest, MatchesUnequalStringIgnoringCase) {
Matcher<const char*> m = StrCaseNe("Hello");
EXPECT_TRUE(m.Matches("Hi"));
EXPECT_TRUE(m.Matches(NULL));
EXPECT_FALSE(m.Matches("Hello"));
EXPECT_FALSE(m.Matches("hello"));
Matcher<string> m2 = StrCaseNe(string("Hello"));
EXPECT_TRUE(m2.Matches(""));
EXPECT_FALSE(m2.Matches("Hello"));
}
TEST(StrCaseNeTest, CanDescribeSelf) {
Matcher<const char*> m = StrCaseNe("Hi");
EXPECT_EQ("is not equal to (ignoring case) \"Hi\"", Describe(m));
}
// Tests that HasSubstr() works for matching string-typed values.
TEST(HasSubstrTest, WorksForStringClasses) {
const Matcher<string> m1 = HasSubstr("foo");
EXPECT_TRUE(m1.Matches(string("I love food.")));
EXPECT_FALSE(m1.Matches(string("tofo")));
const Matcher<const std::string&> m2 = HasSubstr("foo");
EXPECT_TRUE(m2.Matches(std::string("I love food.")));
EXPECT_FALSE(m2.Matches(std::string("tofo")));
}
// Tests that HasSubstr() works for matching C-string-typed values.
TEST(HasSubstrTest, WorksForCStrings) {
const Matcher<char*> m1 = HasSubstr("foo");
EXPECT_TRUE(m1.Matches(const_cast<char*>("I love food.")));
EXPECT_FALSE(m1.Matches(const_cast<char*>("tofo")));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const char*> m2 = HasSubstr("foo");
EXPECT_TRUE(m2.Matches("I love food."));
EXPECT_FALSE(m2.Matches("tofo"));
EXPECT_FALSE(m2.Matches(NULL));
}
// Tests that HasSubstr(s) describes itself properly.
TEST(HasSubstrTest, CanDescribeSelf) {
Matcher<string> m = HasSubstr("foo\n\"");
EXPECT_EQ("has substring \"foo\\n\\\"\"", Describe(m));
}
TEST(KeyTest, CanDescribeSelf) {
Matcher<const std::pair<std::string, int>&> m = Key("foo");
EXPECT_EQ("has a key that is equal to \"foo\"", Describe(m));
}
TEST(KeyTest, MatchesCorrectly) {
std::pair<int, std::string> p(25, "foo");
EXPECT_THAT(p, Key(25));
EXPECT_THAT(p, Not(Key(42)));
EXPECT_THAT(p, Key(Ge(20)));
EXPECT_THAT(p, Not(Key(Lt(25))));
}
TEST(KeyTest, SafelyCastsInnerMatcher) {
Matcher<int> is_positive = Gt(0);
Matcher<int> is_negative = Lt(0);
std::pair<char, bool> p('a', true);
EXPECT_THAT(p, Key(is_positive));
EXPECT_THAT(p, Not(Key(is_negative)));
}
TEST(KeyTest, InsideContainsUsingMap) {
std::map<int, std::string> container;
container.insert(std::make_pair(1, "foo"));
container.insert(std::make_pair(2, "bar"));
container.insert(std::make_pair(4, "baz"));
EXPECT_THAT(container, Contains(Key(1)));
EXPECT_THAT(container, Not(Contains(Key(3))));
}
TEST(KeyTest, InsideContainsUsingMultimap) {
std::multimap<int, std::string> container;
container.insert(std::make_pair(1, "foo"));
container.insert(std::make_pair(2, "bar"));
container.insert(std::make_pair(4, "baz"));
EXPECT_THAT(container, Not(Contains(Key(25))));
container.insert(std::make_pair(25, "more foo"));
EXPECT_THAT(container, Contains(Key(25)));
container.insert(std::make_pair(25, "more bar"));
EXPECT_THAT(container, Contains(Key(25)));
EXPECT_THAT(container, Contains(Key(1)));
EXPECT_THAT(container, Not(Contains(Key(3))));
}
// Tests StartsWith(s).
TEST(StartsWithTest, MatchesStringWithGivenPrefix) {
const Matcher<const char*> m1 = StartsWith(string(""));
EXPECT_TRUE(m1.Matches("Hi"));
EXPECT_TRUE(m1.Matches(""));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const string&> m2 = StartsWith("Hi");
EXPECT_TRUE(m2.Matches("Hi"));
EXPECT_TRUE(m2.Matches("Hi Hi!"));
EXPECT_TRUE(m2.Matches("High"));
EXPECT_FALSE(m2.Matches("H"));
EXPECT_FALSE(m2.Matches(" Hi"));
}
TEST(StartsWithTest, CanDescribeSelf) {
Matcher<const std::string> m = StartsWith("Hi");
EXPECT_EQ("starts with \"Hi\"", Describe(m));
}
// Tests EndsWith(s).
TEST(EndsWithTest, MatchesStringWithGivenSuffix) {
const Matcher<const char*> m1 = EndsWith("");
EXPECT_TRUE(m1.Matches("Hi"));
EXPECT_TRUE(m1.Matches(""));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const string&> m2 = EndsWith(string("Hi"));
EXPECT_TRUE(m2.Matches("Hi"));
EXPECT_TRUE(m2.Matches("Wow Hi Hi"));
EXPECT_TRUE(m2.Matches("Super Hi"));
EXPECT_FALSE(m2.Matches("i"));
EXPECT_FALSE(m2.Matches("Hi "));
}
TEST(EndsWithTest, CanDescribeSelf) {
Matcher<const std::string> m = EndsWith("Hi");
EXPECT_EQ("ends with \"Hi\"", Describe(m));
}
#ifdef GMOCK_HAS_REGEX
// Tests MatchesRegex().
TEST(MatchesRegexTest, MatchesStringMatchingGivenRegex) {
const Matcher<const char*> m1 = MatchesRegex("a.*z");
EXPECT_TRUE(m1.Matches("az"));
EXPECT_TRUE(m1.Matches("abcz"));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const string&> m2 = MatchesRegex(new RE("a.*z"));
EXPECT_TRUE(m2.Matches("azbz"));
EXPECT_FALSE(m2.Matches("az1"));
EXPECT_FALSE(m2.Matches("1az"));
}
TEST(MatchesRegexTest, CanDescribeSelf) {
Matcher<const std::string> m1 = MatchesRegex(string("Hi.*"));
EXPECT_EQ("matches regular expression \"Hi.*\"", Describe(m1));
Matcher<const char*> m2 = MatchesRegex(new RE("[a-z].*"));
EXPECT_EQ("matches regular expression \"[a-z].*\"", Describe(m2));
}
// Tests ContainsRegex().
TEST(ContainsRegexTest, MatchesStringContainingGivenRegex) {
const Matcher<const char*> m1 = ContainsRegex(string("a.*z"));
EXPECT_TRUE(m1.Matches("az"));
EXPECT_TRUE(m1.Matches("0abcz1"));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const string&> m2 = ContainsRegex(new RE("a.*z"));
EXPECT_TRUE(m2.Matches("azbz"));
EXPECT_TRUE(m2.Matches("az1"));
EXPECT_FALSE(m2.Matches("1a"));
}
TEST(ContainsRegexTest, CanDescribeSelf) {
Matcher<const std::string> m1 = ContainsRegex("Hi.*");
EXPECT_EQ("contains regular expression \"Hi.*\"", Describe(m1));
Matcher<const char*> m2 = ContainsRegex(new RE("[a-z].*"));
EXPECT_EQ("contains regular expression \"[a-z].*\"", Describe(m2));
}
#endif // GMOCK_HAS_REGEX
// Tests for wide strings.
#if GTEST_HAS_STD_WSTRING
TEST(StdWideStrEqTest, MatchesEqual) {
Matcher<const wchar_t*> m = StrEq(::std::wstring(L"Hello"));
EXPECT_TRUE(m.Matches(L"Hello"));
EXPECT_FALSE(m.Matches(L"hello"));
EXPECT_FALSE(m.Matches(NULL));
Matcher<const ::std::wstring&> m2 = StrEq(L"Hello");
EXPECT_TRUE(m2.Matches(L"Hello"));
EXPECT_FALSE(m2.Matches(L"Hi"));
Matcher<const ::std::wstring&> m3 = StrEq(L"\xD3\x576\x8D3\xC74D");
EXPECT_TRUE(m3.Matches(L"\xD3\x576\x8D3\xC74D"));
EXPECT_FALSE(m3.Matches(L"\xD3\x576\x8D3\xC74E"));
::std::wstring str(L"01204500800");
str[3] = L'\0';
Matcher<const ::std::wstring&> m4 = StrEq(str);
EXPECT_TRUE(m4.Matches(str));
str[0] = str[6] = str[7] = str[9] = str[10] = L'\0';
Matcher<const ::std::wstring&> m5 = StrEq(str);
EXPECT_TRUE(m5.Matches(str));
}
TEST(StdWideStrEqTest, CanDescribeSelf) {
Matcher< ::std::wstring> m = StrEq(L"Hi-\'\"\?\\\a\b\f\n\r\t\v");
EXPECT_EQ("is equal to L\"Hi-\'\\\"\\?\\\\\\a\\b\\f\\n\\r\\t\\v\"",
Describe(m));
Matcher< ::std::wstring> m2 = StrEq(L"\xD3\x576\x8D3\xC74D");
EXPECT_EQ("is equal to L\"\\xD3\\x576\\x8D3\\xC74D\"",
Describe(m2));
::std::wstring str(L"01204500800");
str[3] = L'\0';
Matcher<const ::std::wstring&> m4 = StrEq(str);
EXPECT_EQ("is equal to L\"012\\04500800\"", Describe(m4));
str[0] = str[6] = str[7] = str[9] = str[10] = L'\0';
Matcher<const ::std::wstring&> m5 = StrEq(str);
EXPECT_EQ("is equal to L\"\\012\\045\\0\\08\\0\\0\"", Describe(m5));
}
TEST(StdWideStrNeTest, MatchesUnequalString) {
Matcher<const wchar_t*> m = StrNe(L"Hello");
EXPECT_TRUE(m.Matches(L""));
EXPECT_TRUE(m.Matches(NULL));
EXPECT_FALSE(m.Matches(L"Hello"));
Matcher< ::std::wstring> m2 = StrNe(::std::wstring(L"Hello"));
EXPECT_TRUE(m2.Matches(L"hello"));
EXPECT_FALSE(m2.Matches(L"Hello"));
}
TEST(StdWideStrNeTest, CanDescribeSelf) {
Matcher<const wchar_t*> m = StrNe(L"Hi");
EXPECT_EQ("is not equal to L\"Hi\"", Describe(m));
}
TEST(StdWideStrCaseEqTest, MatchesEqualStringIgnoringCase) {
Matcher<const wchar_t*> m = StrCaseEq(::std::wstring(L"Hello"));
EXPECT_TRUE(m.Matches(L"Hello"));
EXPECT_TRUE(m.Matches(L"hello"));
EXPECT_FALSE(m.Matches(L"Hi"));
EXPECT_FALSE(m.Matches(NULL));
Matcher<const ::std::wstring&> m2 = StrCaseEq(L"Hello");
EXPECT_TRUE(m2.Matches(L"hello"));
EXPECT_FALSE(m2.Matches(L"Hi"));
}
TEST(StdWideStrCaseEqTest, MatchesEqualStringWith0IgnoringCase) {
::std::wstring str1(L"oabocdooeoo");
::std::wstring str2(L"OABOCDOOEOO");
Matcher<const ::std::wstring&> m0 = StrCaseEq(str1);
EXPECT_FALSE(m0.Matches(str2 + ::std::wstring(1, L'\0')));
str1[3] = str2[3] = L'\0';
Matcher<const ::std::wstring&> m1 = StrCaseEq(str1);
EXPECT_TRUE(m1.Matches(str2));
str1[0] = str1[6] = str1[7] = str1[10] = L'\0';
str2[0] = str2[6] = str2[7] = str2[10] = L'\0';
Matcher<const ::std::wstring&> m2 = StrCaseEq(str1);
str1[9] = str2[9] = L'\0';
EXPECT_FALSE(m2.Matches(str2));
Matcher<const ::std::wstring&> m3 = StrCaseEq(str1);
EXPECT_TRUE(m3.Matches(str2));
EXPECT_FALSE(m3.Matches(str2 + L"x"));
str2.append(1, L'\0');
EXPECT_FALSE(m3.Matches(str2));
EXPECT_FALSE(m3.Matches(::std::wstring(str2, 0, 9)));
}
TEST(StdWideStrCaseEqTest, CanDescribeSelf) {
Matcher< ::std::wstring> m = StrCaseEq(L"Hi");
EXPECT_EQ("is equal to (ignoring case) L\"Hi\"", Describe(m));
}
TEST(StdWideStrCaseNeTest, MatchesUnequalStringIgnoringCase) {
Matcher<const wchar_t*> m = StrCaseNe(L"Hello");
EXPECT_TRUE(m.Matches(L"Hi"));
EXPECT_TRUE(m.Matches(NULL));
EXPECT_FALSE(m.Matches(L"Hello"));
EXPECT_FALSE(m.Matches(L"hello"));
Matcher< ::std::wstring> m2 = StrCaseNe(::std::wstring(L"Hello"));
EXPECT_TRUE(m2.Matches(L""));
EXPECT_FALSE(m2.Matches(L"Hello"));
}
TEST(StdWideStrCaseNeTest, CanDescribeSelf) {
Matcher<const wchar_t*> m = StrCaseNe(L"Hi");
EXPECT_EQ("is not equal to (ignoring case) L\"Hi\"", Describe(m));
}
// Tests that HasSubstr() works for matching wstring-typed values.
TEST(StdWideHasSubstrTest, WorksForStringClasses) {
const Matcher< ::std::wstring> m1 = HasSubstr(L"foo");
EXPECT_TRUE(m1.Matches(::std::wstring(L"I love food.")));
EXPECT_FALSE(m1.Matches(::std::wstring(L"tofo")));
const Matcher<const ::std::wstring&> m2 = HasSubstr(L"foo");
EXPECT_TRUE(m2.Matches(::std::wstring(L"I love food.")));
EXPECT_FALSE(m2.Matches(::std::wstring(L"tofo")));
}
// Tests that HasSubstr() works for matching C-wide-string-typed values.
TEST(StdWideHasSubstrTest, WorksForCStrings) {
const Matcher<wchar_t*> m1 = HasSubstr(L"foo");
EXPECT_TRUE(m1.Matches(const_cast<wchar_t*>(L"I love food.")));
EXPECT_FALSE(m1.Matches(const_cast<wchar_t*>(L"tofo")));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const wchar_t*> m2 = HasSubstr(L"foo");
EXPECT_TRUE(m2.Matches(L"I love food."));
EXPECT_FALSE(m2.Matches(L"tofo"));
EXPECT_FALSE(m2.Matches(NULL));
}
// Tests that HasSubstr(s) describes itself properly.
TEST(StdWideHasSubstrTest, CanDescribeSelf) {
Matcher< ::std::wstring> m = HasSubstr(L"foo\n\"");
EXPECT_EQ("has substring L\"foo\\n\\\"\"", Describe(m));
}
// Tests StartsWith(s).
TEST(StdWideStartsWithTest, MatchesStringWithGivenPrefix) {
const Matcher<const wchar_t*> m1 = StartsWith(::std::wstring(L""));
EXPECT_TRUE(m1.Matches(L"Hi"));
EXPECT_TRUE(m1.Matches(L""));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const ::std::wstring&> m2 = StartsWith(L"Hi");
EXPECT_TRUE(m2.Matches(L"Hi"));
EXPECT_TRUE(m2.Matches(L"Hi Hi!"));
EXPECT_TRUE(m2.Matches(L"High"));
EXPECT_FALSE(m2.Matches(L"H"));
EXPECT_FALSE(m2.Matches(L" Hi"));
}
TEST(StdWideStartsWithTest, CanDescribeSelf) {
Matcher<const ::std::wstring> m = StartsWith(L"Hi");
EXPECT_EQ("starts with L\"Hi\"", Describe(m));
}
// Tests EndsWith(s).
TEST(StdWideEndsWithTest, MatchesStringWithGivenSuffix) {
const Matcher<const wchar_t*> m1 = EndsWith(L"");
EXPECT_TRUE(m1.Matches(L"Hi"));
EXPECT_TRUE(m1.Matches(L""));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const ::std::wstring&> m2 = EndsWith(::std::wstring(L"Hi"));
EXPECT_TRUE(m2.Matches(L"Hi"));
EXPECT_TRUE(m2.Matches(L"Wow Hi Hi"));
EXPECT_TRUE(m2.Matches(L"Super Hi"));
EXPECT_FALSE(m2.Matches(L"i"));
EXPECT_FALSE(m2.Matches(L"Hi "));
}
TEST(StdWideEndsWithTest, CanDescribeSelf) {
Matcher<const ::std::wstring> m = EndsWith(L"Hi");
EXPECT_EQ("ends with L\"Hi\"", Describe(m));
}
#endif // GTEST_HAS_STD_WSTRING
#if GTEST_HAS_GLOBAL_WSTRING
TEST(GlobalWideStrEqTest, MatchesEqual) {
Matcher<const wchar_t*> m = StrEq(::wstring(L"Hello"));
EXPECT_TRUE(m.Matches(L"Hello"));
EXPECT_FALSE(m.Matches(L"hello"));
EXPECT_FALSE(m.Matches(NULL));
Matcher<const ::wstring&> m2 = StrEq(L"Hello");
EXPECT_TRUE(m2.Matches(L"Hello"));
EXPECT_FALSE(m2.Matches(L"Hi"));
Matcher<const ::wstring&> m3 = StrEq(L"\xD3\x576\x8D3\xC74D");
EXPECT_TRUE(m3.Matches(L"\xD3\x576\x8D3\xC74D"));
EXPECT_FALSE(m3.Matches(L"\xD3\x576\x8D3\xC74E"));
::wstring str(L"01204500800");
str[3] = L'\0';
Matcher<const ::wstring&> m4 = StrEq(str);
EXPECT_TRUE(m4.Matches(str));
str[0] = str[6] = str[7] = str[9] = str[10] = L'\0';
Matcher<const ::wstring&> m5 = StrEq(str);
EXPECT_TRUE(m5.Matches(str));
}
TEST(GlobalWideStrEqTest, CanDescribeSelf) {
Matcher< ::wstring> m = StrEq(L"Hi-\'\"\?\\\a\b\f\n\r\t\v");
EXPECT_EQ("is equal to L\"Hi-\'\\\"\\?\\\\\\a\\b\\f\\n\\r\\t\\v\"",
Describe(m));
Matcher< ::wstring> m2 = StrEq(L"\xD3\x576\x8D3\xC74D");
EXPECT_EQ("is equal to L\"\\xD3\\x576\\x8D3\\xC74D\"",
Describe(m2));
::wstring str(L"01204500800");
str[3] = L'\0';
Matcher<const ::wstring&> m4 = StrEq(str);
EXPECT_EQ("is equal to L\"012\\04500800\"", Describe(m4));
str[0] = str[6] = str[7] = str[9] = str[10] = L'\0';
Matcher<const ::wstring&> m5 = StrEq(str);
EXPECT_EQ("is equal to L\"\\012\\045\\0\\08\\0\\0\"", Describe(m5));
}
TEST(GlobalWideStrNeTest, MatchesUnequalString) {
Matcher<const wchar_t*> m = StrNe(L"Hello");
EXPECT_TRUE(m.Matches(L""));
EXPECT_TRUE(m.Matches(NULL));
EXPECT_FALSE(m.Matches(L"Hello"));
Matcher< ::wstring> m2 = StrNe(::wstring(L"Hello"));
EXPECT_TRUE(m2.Matches(L"hello"));
EXPECT_FALSE(m2.Matches(L"Hello"));
}
TEST(GlobalWideStrNeTest, CanDescribeSelf) {
Matcher<const wchar_t*> m = StrNe(L"Hi");
EXPECT_EQ("is not equal to L\"Hi\"", Describe(m));
}
TEST(GlobalWideStrCaseEqTest, MatchesEqualStringIgnoringCase) {
Matcher<const wchar_t*> m = StrCaseEq(::wstring(L"Hello"));
EXPECT_TRUE(m.Matches(L"Hello"));
EXPECT_TRUE(m.Matches(L"hello"));
EXPECT_FALSE(m.Matches(L"Hi"));
EXPECT_FALSE(m.Matches(NULL));
Matcher<const ::wstring&> m2 = StrCaseEq(L"Hello");
EXPECT_TRUE(m2.Matches(L"hello"));
EXPECT_FALSE(m2.Matches(L"Hi"));
}
TEST(GlobalWideStrCaseEqTest, MatchesEqualStringWith0IgnoringCase) {
::wstring str1(L"oabocdooeoo");
::wstring str2(L"OABOCDOOEOO");
Matcher<const ::wstring&> m0 = StrCaseEq(str1);
EXPECT_FALSE(m0.Matches(str2 + ::wstring(1, L'\0')));
str1[3] = str2[3] = L'\0';
Matcher<const ::wstring&> m1 = StrCaseEq(str1);
EXPECT_TRUE(m1.Matches(str2));
str1[0] = str1[6] = str1[7] = str1[10] = L'\0';
str2[0] = str2[6] = str2[7] = str2[10] = L'\0';
Matcher<const ::wstring&> m2 = StrCaseEq(str1);
str1[9] = str2[9] = L'\0';
EXPECT_FALSE(m2.Matches(str2));
Matcher<const ::wstring&> m3 = StrCaseEq(str1);
EXPECT_TRUE(m3.Matches(str2));
EXPECT_FALSE(m3.Matches(str2 + L"x"));
str2.append(1, L'\0');
EXPECT_FALSE(m3.Matches(str2));
EXPECT_FALSE(m3.Matches(::wstring(str2, 0, 9)));
}
TEST(GlobalWideStrCaseEqTest, CanDescribeSelf) {
Matcher< ::wstring> m = StrCaseEq(L"Hi");
EXPECT_EQ("is equal to (ignoring case) L\"Hi\"", Describe(m));
}
TEST(GlobalWideStrCaseNeTest, MatchesUnequalStringIgnoringCase) {
Matcher<const wchar_t*> m = StrCaseNe(L"Hello");
EXPECT_TRUE(m.Matches(L"Hi"));
EXPECT_TRUE(m.Matches(NULL));
EXPECT_FALSE(m.Matches(L"Hello"));
EXPECT_FALSE(m.Matches(L"hello"));
Matcher< ::wstring> m2 = StrCaseNe(::wstring(L"Hello"));
EXPECT_TRUE(m2.Matches(L""));
EXPECT_FALSE(m2.Matches(L"Hello"));
}
TEST(GlobalWideStrCaseNeTest, CanDescribeSelf) {
Matcher<const wchar_t*> m = StrCaseNe(L"Hi");
EXPECT_EQ("is not equal to (ignoring case) L\"Hi\"", Describe(m));
}
// Tests that HasSubstr() works for matching wstring-typed values.
TEST(GlobalWideHasSubstrTest, WorksForStringClasses) {
const Matcher< ::wstring> m1 = HasSubstr(L"foo");
EXPECT_TRUE(m1.Matches(::wstring(L"I love food.")));
EXPECT_FALSE(m1.Matches(::wstring(L"tofo")));
const Matcher<const ::wstring&> m2 = HasSubstr(L"foo");
EXPECT_TRUE(m2.Matches(::wstring(L"I love food.")));
EXPECT_FALSE(m2.Matches(::wstring(L"tofo")));
}
// Tests that HasSubstr() works for matching C-wide-string-typed values.
TEST(GlobalWideHasSubstrTest, WorksForCStrings) {
const Matcher<wchar_t*> m1 = HasSubstr(L"foo");
EXPECT_TRUE(m1.Matches(const_cast<wchar_t*>(L"I love food.")));
EXPECT_FALSE(m1.Matches(const_cast<wchar_t*>(L"tofo")));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const wchar_t*> m2 = HasSubstr(L"foo");
EXPECT_TRUE(m2.Matches(L"I love food."));
EXPECT_FALSE(m2.Matches(L"tofo"));
EXPECT_FALSE(m2.Matches(NULL));
}
// Tests that HasSubstr(s) describes itself properly.
TEST(GlobalWideHasSubstrTest, CanDescribeSelf) {
Matcher< ::wstring> m = HasSubstr(L"foo\n\"");
EXPECT_EQ("has substring L\"foo\\n\\\"\"", Describe(m));
}
// Tests StartsWith(s).
TEST(GlobalWideStartsWithTest, MatchesStringWithGivenPrefix) {
const Matcher<const wchar_t*> m1 = StartsWith(::wstring(L""));
EXPECT_TRUE(m1.Matches(L"Hi"));
EXPECT_TRUE(m1.Matches(L""));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const ::wstring&> m2 = StartsWith(L"Hi");
EXPECT_TRUE(m2.Matches(L"Hi"));
EXPECT_TRUE(m2.Matches(L"Hi Hi!"));
EXPECT_TRUE(m2.Matches(L"High"));
EXPECT_FALSE(m2.Matches(L"H"));
EXPECT_FALSE(m2.Matches(L" Hi"));
}
TEST(GlobalWideStartsWithTest, CanDescribeSelf) {
Matcher<const ::wstring> m = StartsWith(L"Hi");
EXPECT_EQ("starts with L\"Hi\"", Describe(m));
}
// Tests EndsWith(s).
TEST(GlobalWideEndsWithTest, MatchesStringWithGivenSuffix) {
const Matcher<const wchar_t*> m1 = EndsWith(L"");
EXPECT_TRUE(m1.Matches(L"Hi"));
EXPECT_TRUE(m1.Matches(L""));
EXPECT_FALSE(m1.Matches(NULL));
const Matcher<const ::wstring&> m2 = EndsWith(::wstring(L"Hi"));
EXPECT_TRUE(m2.Matches(L"Hi"));
EXPECT_TRUE(m2.Matches(L"Wow Hi Hi"));
EXPECT_TRUE(m2.Matches(L"Super Hi"));
EXPECT_FALSE(m2.Matches(L"i"));
EXPECT_FALSE(m2.Matches(L"Hi "));
}
TEST(GlobalWideEndsWithTest, CanDescribeSelf) {
Matcher<const ::wstring> m = EndsWith(L"Hi");
EXPECT_EQ("ends with L\"Hi\"", Describe(m));
}
#endif // GTEST_HAS_GLOBAL_WSTRING
typedef ::std::tr1::tuple<long, int> Tuple2; // NOLINT
// Tests that Eq() matches a 2-tuple where the first field == the
// second field.
TEST(Eq2Test, MatchesEqualArguments) {
Matcher<const Tuple2&> m = Eq();
EXPECT_TRUE(m.Matches(Tuple2(5L, 5)));
EXPECT_FALSE(m.Matches(Tuple2(5L, 6)));
}
// Tests that Eq() describes itself properly.
TEST(Eq2Test, CanDescribeSelf) {
Matcher<const Tuple2&> m = Eq();
EXPECT_EQ("are a pair (x, y) where x == y", Describe(m));
}
// Tests that Ge() matches a 2-tuple where the first field >= the
// second field.
TEST(Ge2Test, MatchesGreaterThanOrEqualArguments) {
Matcher<const Tuple2&> m = Ge();
EXPECT_TRUE(m.Matches(Tuple2(5L, 4)));
EXPECT_TRUE(m.Matches(Tuple2(5L, 5)));
EXPECT_FALSE(m.Matches(Tuple2(5L, 6)));
}
// Tests that Ge() describes itself properly.
TEST(Ge2Test, CanDescribeSelf) {
Matcher<const Tuple2&> m = Ge();
EXPECT_EQ("are a pair (x, y) where x >= y", Describe(m));
}
// Tests that Gt() matches a 2-tuple where the first field > the
// second field.
TEST(Gt2Test, MatchesGreaterThanArguments) {
Matcher<const Tuple2&> m = Gt();
EXPECT_TRUE(m.Matches(Tuple2(5L, 4)));
EXPECT_FALSE(m.Matches(Tuple2(5L, 5)));
EXPECT_FALSE(m.Matches(Tuple2(5L, 6)));
}
// Tests that Gt() describes itself properly.
TEST(Gt2Test, CanDescribeSelf) {
Matcher<const Tuple2&> m = Gt();
EXPECT_EQ("are a pair (x, y) where x > y", Describe(m));
}
// Tests that Le() matches a 2-tuple where the first field <= the
// second field.
TEST(Le2Test, MatchesLessThanOrEqualArguments) {
Matcher<const Tuple2&> m = Le();
EXPECT_TRUE(m.Matches(Tuple2(5L, 6)));
EXPECT_TRUE(m.Matches(Tuple2(5L, 5)));
EXPECT_FALSE(m.Matches(Tuple2(5L, 4)));
}
// Tests that Le() describes itself properly.
TEST(Le2Test, CanDescribeSelf) {
Matcher<const Tuple2&> m = Le();
EXPECT_EQ("are a pair (x, y) where x <= y", Describe(m));
}
// Tests that Lt() matches a 2-tuple where the first field < the
// second field.
TEST(Lt2Test, MatchesLessThanArguments) {
Matcher<const Tuple2&> m = Lt();
EXPECT_TRUE(m.Matches(Tuple2(5L, 6)));
EXPECT_FALSE(m.Matches(Tuple2(5L, 5)));
EXPECT_FALSE(m.Matches(Tuple2(5L, 4)));
}
// Tests that Lt() describes itself properly.
TEST(Lt2Test, CanDescribeSelf) {
Matcher<const Tuple2&> m = Lt();
EXPECT_EQ("are a pair (x, y) where x < y", Describe(m));
}
// Tests that Ne() matches a 2-tuple where the first field != the
// second field.
TEST(Ne2Test, MatchesUnequalArguments) {
Matcher<const Tuple2&> m = Ne();
EXPECT_TRUE(m.Matches(Tuple2(5L, 6)));
EXPECT_TRUE(m.Matches(Tuple2(5L, 4)));
EXPECT_FALSE(m.Matches(Tuple2(5L, 5)));
}
// Tests that Ne() describes itself properly.
TEST(Ne2Test, CanDescribeSelf) {
Matcher<const Tuple2&> m = Ne();
EXPECT_EQ("are a pair (x, y) where x != y", Describe(m));
}
// Tests that Not(m) matches any value that doesn't match m.
TEST(NotTest, NegatesMatcher) {
Matcher<int> m;
m = Not(Eq(2));
EXPECT_TRUE(m.Matches(3));
EXPECT_FALSE(m.Matches(2));
}
// Tests that Not(m) describes itself properly.
TEST(NotTest, CanDescribeSelf) {
Matcher<int> m = Not(Eq(5));
EXPECT_EQ("is not equal to 5", Describe(m));
}
// Tests that monomorphic matchers are safely cast by the Not matcher.
TEST(NotTest, NotMatcherSafelyCastsMonomorphicMatchers) {
// greater_than_5 is a monomorphic matcher.
Matcher<int> greater_than_5 = Gt(5);
Matcher<const int&> m = Not(greater_than_5);
Matcher<int&> m2 = Not(greater_than_5);
Matcher<int&> m3 = Not(m);
}
// Tests that AllOf(m1, ..., mn) matches any value that matches all of
// the given matchers.
TEST(AllOfTest, MatchesWhenAllMatch) {
Matcher<int> m;
m = AllOf(Le(2), Ge(1));
EXPECT_TRUE(m.Matches(1));
EXPECT_TRUE(m.Matches(2));
EXPECT_FALSE(m.Matches(0));
EXPECT_FALSE(m.Matches(3));
m = AllOf(Gt(0), Ne(1), Ne(2));
EXPECT_TRUE(m.Matches(3));
EXPECT_FALSE(m.Matches(2));
EXPECT_FALSE(m.Matches(1));
EXPECT_FALSE(m.Matches(0));
m = AllOf(Gt(0), Ne(1), Ne(2), Ne(3));
EXPECT_TRUE(m.Matches(4));
EXPECT_FALSE(m.Matches(3));
EXPECT_FALSE(m.Matches(2));
EXPECT_FALSE(m.Matches(1));
EXPECT_FALSE(m.Matches(0));
m = AllOf(Ge(0), Lt(10), Ne(3), Ne(5), Ne(7));
EXPECT_TRUE(m.Matches(0));
EXPECT_TRUE(m.Matches(1));
EXPECT_FALSE(m.Matches(3));
}
// Tests that AllOf(m1, ..., mn) describes itself properly.
TEST(AllOfTest, CanDescribeSelf) {
Matcher<int> m;
m = AllOf(Le(2), Ge(1));
EXPECT_EQ("(is less than or equal to 2) and "
"(is greater than or equal to 1)",
Describe(m));
m = AllOf(Gt(0), Ne(1), Ne(2));
EXPECT_EQ("(is greater than 0) and "
"((is not equal to 1) and "
"(is not equal to 2))",
Describe(m));
m = AllOf(Gt(0), Ne(1), Ne(2), Ne(3));
EXPECT_EQ("(is greater than 0) and "
"((is not equal to 1) and "
"((is not equal to 2) and "
"(is not equal to 3)))",
Describe(m));
m = AllOf(Ge(0), Lt(10), Ne(3), Ne(5), Ne(7));
EXPECT_EQ("(is greater than or equal to 0) and "
"((is less than 10) and "
"((is not equal to 3) and "
"((is not equal to 5) and "
"(is not equal to 7))))", Describe(m));
}
// Tests that monomorphic matchers are safely cast by the AllOf matcher.
TEST(AllOfTest, AllOfMatcherSafelyCastsMonomorphicMatchers) {
// greater_than_5 and less_than_10 are monomorphic matchers.
Matcher<int> greater_than_5 = Gt(5);
Matcher<int> less_than_10 = Lt(10);
Matcher<const int&> m = AllOf(greater_than_5, less_than_10);
Matcher<int&> m2 = AllOf(greater_than_5, less_than_10);
Matcher<int&> m3 = AllOf(greater_than_5, m2);
// Tests that BothOf works when composing itself.
Matcher<const int&> m4 = AllOf(greater_than_5, less_than_10, less_than_10);
Matcher<int&> m5 = AllOf(greater_than_5, less_than_10, less_than_10);
}
// Tests that AnyOf(m1, ..., mn) matches any value that matches at
// least one of the given matchers.
TEST(AnyOfTest, MatchesWhenAnyMatches) {
Matcher<int> m;
m = AnyOf(Le(1), Ge(3));
EXPECT_TRUE(m.Matches(1));
EXPECT_TRUE(m.Matches(4));
EXPECT_FALSE(m.Matches(2));
m = AnyOf(Lt(0), Eq(1), Eq(2));
EXPECT_TRUE(m.Matches(-1));
EXPECT_TRUE(m.Matches(1));
EXPECT_TRUE(m.Matches(2));
EXPECT_FALSE(m.Matches(0));
m = AnyOf(Lt(0), Eq(1), Eq(2), Eq(3));
EXPECT_TRUE(m.Matches(-1));
EXPECT_TRUE(m.Matches(1));
EXPECT_TRUE(m.Matches(2));
EXPECT_TRUE(m.Matches(3));
EXPECT_FALSE(m.Matches(0));
m = AnyOf(Le(0), Gt(10), 3, 5, 7);
EXPECT_TRUE(m.Matches(0));
EXPECT_TRUE(m.Matches(11));
EXPECT_TRUE(m.Matches(3));
EXPECT_FALSE(m.Matches(2));
}
// Tests that AnyOf(m1, ..., mn) describes itself properly.
TEST(AnyOfTest, CanDescribeSelf) {
Matcher<int> m;
m = AnyOf(Le(1), Ge(3));
EXPECT_EQ("(is less than or equal to 1) or "
"(is greater than or equal to 3)",
Describe(m));
m = AnyOf(Lt(0), Eq(1), Eq(2));
EXPECT_EQ("(is less than 0) or "
"((is equal to 1) or (is equal to 2))",
Describe(m));
m = AnyOf(Lt(0), Eq(1), Eq(2), Eq(3));
EXPECT_EQ("(is less than 0) or "
"((is equal to 1) or "
"((is equal to 2) or "
"(is equal to 3)))",
Describe(m));
m = AnyOf(Le(0), Gt(10), 3, 5, 7);
EXPECT_EQ("(is less than or equal to 0) or "
"((is greater than 10) or "
"((is equal to 3) or "
"((is equal to 5) or "
"(is equal to 7))))",
Describe(m));
}
// Tests that monomorphic matchers are safely cast by the AnyOf matcher.
TEST(AnyOfTest, AnyOfMatcherSafelyCastsMonomorphicMatchers) {
// greater_than_5 and less_than_10 are monomorphic matchers.
Matcher<int> greater_than_5 = Gt(5);
Matcher<int> less_than_10 = Lt(10);
Matcher<const int&> m = AnyOf(greater_than_5, less_than_10);
Matcher<int&> m2 = AnyOf(greater_than_5, less_than_10);
Matcher<int&> m3 = AnyOf(greater_than_5, m2);
// Tests that EitherOf works when composing itself.
Matcher<const int&> m4 = AnyOf(greater_than_5, less_than_10, less_than_10);
Matcher<int&> m5 = AnyOf(greater_than_5, less_than_10, less_than_10);
}
// The following predicate function and predicate functor are for
// testing the Truly(predicate) matcher.
// Returns non-zero if the input is positive. Note that the return
// type of this function is not bool. It's OK as Truly() accepts any
// unary function or functor whose return type can be implicitly
// converted to bool.
int IsPositive(double x) {
return x > 0 ? 1 : 0;
}
// This functor returns true if the input is greater than the given
// number.
class IsGreaterThan {
public:
explicit IsGreaterThan(int threshold) : threshold_(threshold) {}
bool operator()(int n) const { return n > threshold_; }
private:
const int threshold_;
};
// For testing Truly().
const int foo = 0;
// This predicate returns true iff the argument references foo and has
// a zero value.
bool ReferencesFooAndIsZero(const int& n) {
return (&n == &foo) && (n == 0);
}
// Tests that Truly(predicate) matches what satisfies the given
// predicate.
TEST(TrulyTest, MatchesWhatSatisfiesThePredicate) {
Matcher<double> m = Truly(IsPositive);
EXPECT_TRUE(m.Matches(2.0));
EXPECT_FALSE(m.Matches(-1.5));
}
// Tests that Truly(predicate_functor) works too.
TEST(TrulyTest, CanBeUsedWithFunctor) {
Matcher<int> m = Truly(IsGreaterThan(5));
EXPECT_TRUE(m.Matches(6));
EXPECT_FALSE(m.Matches(4));
}
// Tests that Truly(predicate) can describe itself properly.
TEST(TrulyTest, CanDescribeSelf) {
Matcher<double> m = Truly(IsPositive);
EXPECT_EQ("satisfies the given predicate",
Describe(m));
}
// Tests that Truly(predicate) works when the matcher takes its
// argument by reference.
TEST(TrulyTest, WorksForByRefArguments) {
Matcher<const int&> m = Truly(ReferencesFooAndIsZero);
EXPECT_TRUE(m.Matches(foo));
int n = 0;
EXPECT_FALSE(m.Matches(n));
}
// Tests that Matches(m) is a predicate satisfied by whatever that
// matches matcher m.
TEST(MatchesTest, IsSatisfiedByWhatMatchesTheMatcher) {
EXPECT_TRUE(Matches(Ge(0))(1));
EXPECT_FALSE(Matches(Eq('a'))('b'));
}
// Tests that Matches(m) works when the matcher takes its argument by
// reference.
TEST(MatchesTest, WorksOnByRefArguments) {
int m = 0, n = 0;
EXPECT_TRUE(Matches(AllOf(Ref(n), Eq(0)))(n));
EXPECT_FALSE(Matches(Ref(m))(n));
}
// Tests that a Matcher on non-reference type can be used in
// Matches().
TEST(MatchesTest, WorksWithMatcherOnNonRefType) {
Matcher<int> eq5 = Eq(5);
EXPECT_TRUE(Matches(eq5)(5));
EXPECT_FALSE(Matches(eq5)(2));
}
// Tests Value(value, matcher). Since Value() is a simple wrapper for
// Matches(), which has been tested already, we don't spend a lot of
// effort on testing Value().
TEST(ValueTest, WorksWithPolymorphicMatcher) {
EXPECT_TRUE(Value("hi", StartsWith("h")));
EXPECT_FALSE(Value(5, Gt(10)));
}
TEST(ValueTest, WorksWithMonomorphicMatcher) {
const Matcher<int> is_zero = Eq(0);
EXPECT_TRUE(Value(0, is_zero));
EXPECT_FALSE(Value('a', is_zero));
int n = 0;
const Matcher<const int&> ref_n = Ref(n);
EXPECT_TRUE(Value(n, ref_n));
EXPECT_FALSE(Value(1, ref_n));
}
TEST(AllArgsTest, WorksForTuple) {
EXPECT_THAT(make_tuple(1, 2L), AllArgs(Lt()));
EXPECT_THAT(make_tuple(2L, 1), Not(AllArgs(Lt())));
}
TEST(AllArgsTest, WorksForNonTuple) {
EXPECT_THAT(42, AllArgs(Gt(0)));
EXPECT_THAT('a', Not(AllArgs(Eq('b'))));
}
class AllArgsHelper {
public:
MOCK_METHOD2(Helper, int(char x, int y));
};
TEST(AllArgsTest, WorksInWithClause) {
AllArgsHelper helper;
ON_CALL(helper, Helper(_, _))
.With(AllArgs(Lt()))
.WillByDefault(Return(1));
EXPECT_CALL(helper, Helper(_, _));
EXPECT_CALL(helper, Helper(_, _))
.With(AllArgs(Gt()))
.WillOnce(Return(2));
EXPECT_EQ(1, helper.Helper('\1', 2));
EXPECT_EQ(2, helper.Helper('a', 1));
}
// Tests that ASSERT_THAT() and EXPECT_THAT() work when the value
// matches the matcher.
TEST(MatcherAssertionTest, WorksWhenMatcherIsSatisfied) {
ASSERT_THAT(5, Ge(2)) << "This should succeed.";
ASSERT_THAT("Foo", EndsWith("oo"));
EXPECT_THAT(2, AllOf(Le(7), Ge(0))) << "This should succeed too.";
EXPECT_THAT("Hello", StartsWith("Hell"));
}
// Tests that ASSERT_THAT() and EXPECT_THAT() work when the value
// doesn't match the matcher.
TEST(MatcherAssertionTest, WorksWhenMatcherIsNotSatisfied) {
// 'n' must be static as it is used in an EXPECT_FATAL_FAILURE(),
// which cannot reference auto variables.
static int n;
n = 5;
// VC++ prior to version 8.0 SP1 has a bug where it will not see any
// functions declared in the namespace scope from within nested classes.
// EXPECT/ASSERT_(NON)FATAL_FAILURE macros use nested classes so that all
// namespace-level functions invoked inside them need to be explicitly
// resolved.
EXPECT_FATAL_FAILURE(ASSERT_THAT(n, ::testing::Gt(10)),
"Value of: n\n"
"Expected: is greater than 10\n"
" Actual: 5");
n = 0;
EXPECT_NONFATAL_FAILURE(
EXPECT_THAT(n, ::testing::AllOf(::testing::Le(7), ::testing::Ge(5))),
"Value of: n\n"
"Expected: (is less than or equal to 7) and "
"(is greater than or equal to 5)\n"
" Actual: 0");
}
// Tests that ASSERT_THAT() and EXPECT_THAT() work when the argument
// has a reference type.
TEST(MatcherAssertionTest, WorksForByRefArguments) {
// We use a static variable here as EXPECT_FATAL_FAILURE() cannot
// reference auto variables.
static int n;
n = 0;
EXPECT_THAT(n, AllOf(Le(7), Ref(n)));
EXPECT_FATAL_FAILURE(ASSERT_THAT(n, ::testing::Not(::testing::Ref(n))),
"Value of: n\n"
"Expected: does not reference the variable @");
// Tests the "Actual" part.
EXPECT_FATAL_FAILURE(ASSERT_THAT(n, ::testing::Not(::testing::Ref(n))),
"Actual: 0 (is located @");
}
// Tests that ASSERT_THAT() and EXPECT_THAT() work when the matcher is
// monomorphic.
TEST(MatcherAssertionTest, WorksForMonomorphicMatcher) {
Matcher<const char*> starts_with_he = StartsWith("he");
ASSERT_THAT("hello", starts_with_he);
Matcher<const string&> ends_with_ok = EndsWith("ok");
ASSERT_THAT("book", ends_with_ok);
Matcher<int> is_greater_than_5 = Gt(5);
EXPECT_NONFATAL_FAILURE(EXPECT_THAT(5, is_greater_than_5),
"Value of: 5\n"
"Expected: is greater than 5\n"
" Actual: 5");
}
// Tests floating-point matchers.
template <typename RawType>
class FloatingPointTest : public testing::Test {
protected:
typedef typename testing::internal::FloatingPoint<RawType> Floating;
typedef typename Floating::Bits Bits;
virtual void SetUp() {
const size_t max_ulps = Floating::kMaxUlps;
// The bits that represent 0.0.
const Bits zero_bits = Floating(0).bits();
// Makes some numbers close to 0.0.
close_to_positive_zero_ = Floating::ReinterpretBits(zero_bits + max_ulps/2);
close_to_negative_zero_ = -Floating::ReinterpretBits(
zero_bits + max_ulps - max_ulps/2);
further_from_negative_zero_ = -Floating::ReinterpretBits(
zero_bits + max_ulps + 1 - max_ulps/2);
// The bits that represent 1.0.
const Bits one_bits = Floating(1).bits();
// Makes some numbers close to 1.0.
close_to_one_ = Floating::ReinterpretBits(one_bits + max_ulps);
further_from_one_ = Floating::ReinterpretBits(one_bits + max_ulps + 1);
// +infinity.
infinity_ = Floating::Infinity();
// The bits that represent +infinity.
const Bits infinity_bits = Floating(infinity_).bits();
// Makes some numbers close to infinity.
close_to_infinity_ = Floating::ReinterpretBits(infinity_bits - max_ulps);
further_from_infinity_ = Floating::ReinterpretBits(
infinity_bits - max_ulps - 1);
// Makes some NAN's.
nan1_ = Floating::ReinterpretBits(Floating::kExponentBitMask | 1);
nan2_ = Floating::ReinterpretBits(Floating::kExponentBitMask | 200);
}
void TestSize() {
EXPECT_EQ(sizeof(RawType), sizeof(Bits));
}
// A battery of tests for FloatingEqMatcher::Matches.
// matcher_maker is a pointer to a function which creates a FloatingEqMatcher.
void TestMatches(
testing::internal::FloatingEqMatcher<RawType> (*matcher_maker)(RawType)) {
Matcher<RawType> m1 = matcher_maker(0.0);
EXPECT_TRUE(m1.Matches(-0.0));
EXPECT_TRUE(m1.Matches(close_to_positive_zero_));
EXPECT_TRUE(m1.Matches(close_to_negative_zero_));
EXPECT_FALSE(m1.Matches(1.0));
Matcher<RawType> m2 = matcher_maker(close_to_positive_zero_);
EXPECT_FALSE(m2.Matches(further_from_negative_zero_));
Matcher<RawType> m3 = matcher_maker(1.0);
EXPECT_TRUE(m3.Matches(close_to_one_));
EXPECT_FALSE(m3.Matches(further_from_one_));
// Test commutativity: matcher_maker(0.0).Matches(1.0) was tested above.
EXPECT_FALSE(m3.Matches(0.0));
Matcher<RawType> m4 = matcher_maker(-infinity_);
EXPECT_TRUE(m4.Matches(-close_to_infinity_));
Matcher<RawType> m5 = matcher_maker(infinity_);
EXPECT_TRUE(m5.Matches(close_to_infinity_));
// This is interesting as the representations of infinity_ and nan1_
// are only 1 DLP apart.
EXPECT_FALSE(m5.Matches(nan1_));
// matcher_maker can produce a Matcher<const RawType&>, which is needed in
// some cases.
Matcher<const RawType&> m6 = matcher_maker(0.0);
EXPECT_TRUE(m6.Matches(-0.0));
EXPECT_TRUE(m6.Matches(close_to_positive_zero_));
EXPECT_FALSE(m6.Matches(1.0));
// matcher_maker can produce a Matcher<RawType&>, which is needed in some
// cases.
Matcher<RawType&> m7 = matcher_maker(0.0);
RawType x = 0.0;
EXPECT_TRUE(m7.Matches(x));
x = 0.01f;
EXPECT_FALSE(m7.Matches(x));
}
// Pre-calculated numbers to be used by the tests.
static RawType close_to_positive_zero_;
static RawType close_to_negative_zero_;
static RawType further_from_negative_zero_;
static RawType close_to_one_;
static RawType further_from_one_;
static RawType infinity_;
static RawType close_to_infinity_;
static RawType further_from_infinity_;
static RawType nan1_;
static RawType nan2_;
};
template <typename RawType>
RawType FloatingPointTest<RawType>::close_to_positive_zero_;
template <typename RawType>
RawType FloatingPointTest<RawType>::close_to_negative_zero_;
template <typename RawType>
RawType FloatingPointTest<RawType>::further_from_negative_zero_;
template <typename RawType>
RawType FloatingPointTest<RawType>::close_to_one_;
template <typename RawType>
RawType FloatingPointTest<RawType>::further_from_one_;
template <typename RawType>
RawType FloatingPointTest<RawType>::infinity_;
template <typename RawType>
RawType FloatingPointTest<RawType>::close_to_infinity_;
template <typename RawType>
RawType FloatingPointTest<RawType>::further_from_infinity_;
template <typename RawType>
RawType FloatingPointTest<RawType>::nan1_;
template <typename RawType>
RawType FloatingPointTest<RawType>::nan2_;
// Instantiate FloatingPointTest for testing floats.
typedef FloatingPointTest<float> FloatTest;
TEST_F(FloatTest, FloatEqApproximatelyMatchesFloats) {
TestMatches(&FloatEq);
}
TEST_F(FloatTest, NanSensitiveFloatEqApproximatelyMatchesFloats) {
TestMatches(&NanSensitiveFloatEq);
}
TEST_F(FloatTest, FloatEqCannotMatchNaN) {
// FloatEq never matches NaN.
Matcher<float> m = FloatEq(nan1_);
EXPECT_FALSE(m.Matches(nan1_));
EXPECT_FALSE(m.Matches(nan2_));
EXPECT_FALSE(m.Matches(1.0));
}
TEST_F(FloatTest, NanSensitiveFloatEqCanMatchNaN) {
// NanSensitiveFloatEq will match NaN.
Matcher<float> m = NanSensitiveFloatEq(nan1_);
EXPECT_TRUE(m.Matches(nan1_));
EXPECT_TRUE(m.Matches(nan2_));
EXPECT_FALSE(m.Matches(1.0));
}
TEST_F(FloatTest, FloatEqCanDescribeSelf) {
Matcher<float> m1 = FloatEq(2.0f);
EXPECT_EQ("is approximately 2", Describe(m1));
EXPECT_EQ("is not approximately 2", DescribeNegation(m1));
Matcher<float> m2 = FloatEq(0.5f);
EXPECT_EQ("is approximately 0.5", Describe(m2));
EXPECT_EQ("is not approximately 0.5", DescribeNegation(m2));
Matcher<float> m3 = FloatEq(nan1_);
EXPECT_EQ("never matches", Describe(m3));
EXPECT_EQ("is anything", DescribeNegation(m3));
}
TEST_F(FloatTest, NanSensitiveFloatEqCanDescribeSelf) {
Matcher<float> m1 = NanSensitiveFloatEq(2.0f);
EXPECT_EQ("is approximately 2", Describe(m1));
EXPECT_EQ("is not approximately 2", DescribeNegation(m1));
Matcher<float> m2 = NanSensitiveFloatEq(0.5f);
EXPECT_EQ("is approximately 0.5", Describe(m2));
EXPECT_EQ("is not approximately 0.5", DescribeNegation(m2));
Matcher<float> m3 = NanSensitiveFloatEq(nan1_);
EXPECT_EQ("is NaN", Describe(m3));
EXPECT_EQ("is not NaN", DescribeNegation(m3));
}
// Instantiate FloatingPointTest for testing doubles.
typedef FloatingPointTest<double> DoubleTest;
TEST_F(DoubleTest, DoubleEqApproximatelyMatchesDoubles) {
TestMatches(&DoubleEq);
}
TEST_F(DoubleTest, NanSensitiveDoubleEqApproximatelyMatchesDoubles) {
TestMatches(&NanSensitiveDoubleEq);
}
TEST_F(DoubleTest, DoubleEqCannotMatchNaN) {
// DoubleEq never matches NaN.
Matcher<double> m = DoubleEq(nan1_);
EXPECT_FALSE(m.Matches(nan1_));
EXPECT_FALSE(m.Matches(nan2_));
EXPECT_FALSE(m.Matches(1.0));
}
TEST_F(DoubleTest, NanSensitiveDoubleEqCanMatchNaN) {
// NanSensitiveDoubleEq will match NaN.
Matcher<double> m = NanSensitiveDoubleEq(nan1_);
EXPECT_TRUE(m.Matches(nan1_));
EXPECT_TRUE(m.Matches(nan2_));
EXPECT_FALSE(m.Matches(1.0));
}
TEST_F(DoubleTest, DoubleEqCanDescribeSelf) {
Matcher<double> m1 = DoubleEq(2.0);
EXPECT_EQ("is approximately 2", Describe(m1));
EXPECT_EQ("is not approximately 2", DescribeNegation(m1));
Matcher<double> m2 = DoubleEq(0.5);
EXPECT_EQ("is approximately 0.5", Describe(m2));
EXPECT_EQ("is not approximately 0.5", DescribeNegation(m2));
Matcher<double> m3 = DoubleEq(nan1_);
EXPECT_EQ("never matches", Describe(m3));
EXPECT_EQ("is anything", DescribeNegation(m3));
}
TEST_F(DoubleTest, NanSensitiveDoubleEqCanDescribeSelf) {
Matcher<double> m1 = NanSensitiveDoubleEq(2.0);
EXPECT_EQ("is approximately 2", Describe(m1));
EXPECT_EQ("is not approximately 2", DescribeNegation(m1));
Matcher<double> m2 = NanSensitiveDoubleEq(0.5);
EXPECT_EQ("is approximately 0.5", Describe(m2));
EXPECT_EQ("is not approximately 0.5", DescribeNegation(m2));
Matcher<double> m3 = NanSensitiveDoubleEq(nan1_);
EXPECT_EQ("is NaN", Describe(m3));
EXPECT_EQ("is not NaN", DescribeNegation(m3));
}
TEST(PointeeTest, RawPointer) {
const Matcher<int*> m = Pointee(Ge(0));
int n = 1;
EXPECT_TRUE(m.Matches(&n));
n = -1;
EXPECT_FALSE(m.Matches(&n));
EXPECT_FALSE(m.Matches(NULL));
}
TEST(PointeeTest, RawPointerToConst) {
const Matcher<const double*> m = Pointee(Ge(0));
double x = 1;
EXPECT_TRUE(m.Matches(&x));
x = -1;
EXPECT_FALSE(m.Matches(&x));
EXPECT_FALSE(m.Matches(NULL));
}
TEST(PointeeTest, ReferenceToConstRawPointer) {
const Matcher<int* const &> m = Pointee(Ge(0));
int n = 1;
EXPECT_TRUE(m.Matches(&n));
n = -1;
EXPECT_FALSE(m.Matches(&n));
EXPECT_FALSE(m.Matches(NULL));
}
TEST(PointeeTest, ReferenceToNonConstRawPointer) {
const Matcher<double* &> m = Pointee(Ge(0));
double x = 1.0;
double* p = &x;
EXPECT_TRUE(m.Matches(p));
x = -1;
EXPECT_FALSE(m.Matches(p));
p = NULL;
EXPECT_FALSE(m.Matches(p));
}
TEST(PointeeTest, NeverMatchesNull) {
const Matcher<const char*> m = Pointee(_);
EXPECT_FALSE(m.Matches(NULL));
}
// Tests that we can write Pointee(value) instead of Pointee(Eq(value)).
TEST(PointeeTest, MatchesAgainstAValue) {
const Matcher<int*> m = Pointee(5);
int n = 5;
EXPECT_TRUE(m.Matches(&n));
n = -1;
EXPECT_FALSE(m.Matches(&n));
EXPECT_FALSE(m.Matches(NULL));
}
TEST(PointeeTest, CanDescribeSelf) {
const Matcher<int*> m = Pointee(Gt(3));
EXPECT_EQ("points to a value that is greater than 3", Describe(m));
EXPECT_EQ("does not point to a value that is greater than 3",
DescribeNegation(m));
}
// For testing ExplainMatchResultTo().
class GreaterThanMatcher : public MatcherInterface<int> {
public:
explicit GreaterThanMatcher(int rhs) : rhs_(rhs) {}
virtual bool Matches(int lhs) const { return lhs > rhs_; }
virtual void DescribeTo(::std::ostream* os) const {
*os << "is greater than " << rhs_;
}
virtual void ExplainMatchResultTo(int lhs, ::std::ostream* os) const {
const int diff = lhs - rhs_;
if (diff > 0) {
*os << "is " << diff << " more than " << rhs_;
} else if (diff == 0) {
*os << "is the same as " << rhs_;
} else {
*os << "is " << -diff << " less than " << rhs_;
}
}
private:
const int rhs_;
};
Matcher<int> GreaterThan(int n) {
return MakeMatcher(new GreaterThanMatcher(n));
}
TEST(PointeeTest, CanExplainMatchResult) {
const Matcher<const string*> m = Pointee(StartsWith("Hi"));
EXPECT_EQ("", Explain(m, static_cast<const string*>(NULL)));
const Matcher<int*> m2 = Pointee(GreaterThan(1));
int n = 3;
EXPECT_EQ("points to a value that is 2 more than 1", Explain(m2, &n));
}
// An uncopyable class.
class Uncopyable {
public:
explicit Uncopyable(int value) : value_(value) {}
int value() const { return value_; }
private:
const int value_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(Uncopyable);
};
// Returns true iff x.value() is positive.
bool ValueIsPositive(const Uncopyable& x) { return x.value() > 0; }
// A user-defined struct for testing Field().
struct AStruct {
AStruct() : x(0), y(1.0), z(5), p(NULL) {}
AStruct(const AStruct& rhs)
: x(rhs.x), y(rhs.y), z(rhs.z.value()), p(rhs.p) {}
int x; // A non-const field.
const double y; // A const field.
Uncopyable z; // An uncopyable field.
const char* p; // A pointer field.
};
// A derived struct for testing Field().
struct DerivedStruct : public AStruct {
char ch;
};
// Tests that Field(&Foo::field, ...) works when field is non-const.
TEST(FieldTest, WorksForNonConstField) {
Matcher<AStruct> m = Field(&AStruct::x, Ge(0));
AStruct a;
EXPECT_TRUE(m.Matches(a));
a.x = -1;
EXPECT_FALSE(m.Matches(a));
}
// Tests that Field(&Foo::field, ...) works when field is const.
TEST(FieldTest, WorksForConstField) {
AStruct a;
Matcher<AStruct> m = Field(&AStruct::y, Ge(0.0));
EXPECT_TRUE(m.Matches(a));
m = Field(&AStruct::y, Le(0.0));
EXPECT_FALSE(m.Matches(a));
}
// Tests that Field(&Foo::field, ...) works when field is not copyable.
TEST(FieldTest, WorksForUncopyableField) {
AStruct a;
Matcher<AStruct> m = Field(&AStruct::z, Truly(ValueIsPositive));
EXPECT_TRUE(m.Matches(a));
m = Field(&AStruct::z, Not(Truly(ValueIsPositive)));
EXPECT_FALSE(m.Matches(a));
}
// Tests that Field(&Foo::field, ...) works when field is a pointer.
TEST(FieldTest, WorksForPointerField) {
// Matching against NULL.
Matcher<AStruct> m = Field(&AStruct::p, static_cast<const char*>(NULL));
AStruct a;
EXPECT_TRUE(m.Matches(a));
a.p = "hi";
EXPECT_FALSE(m.Matches(a));
// Matching a pointer that is not NULL.
m = Field(&AStruct::p, StartsWith("hi"));
a.p = "hill";
EXPECT_TRUE(m.Matches(a));
a.p = "hole";
EXPECT_FALSE(m.Matches(a));
}
// Tests that Field() works when the object is passed by reference.
TEST(FieldTest, WorksForByRefArgument) {
Matcher<const AStruct&> m = Field(&AStruct::x, Ge(0));
AStruct a;
EXPECT_TRUE(m.Matches(a));
a.x = -1;
EXPECT_FALSE(m.Matches(a));
}
// Tests that Field(&Foo::field, ...) works when the argument's type
// is a sub-type of Foo.
TEST(FieldTest, WorksForArgumentOfSubType) {
// Note that the matcher expects DerivedStruct but we say AStruct
// inside Field().
Matcher<const DerivedStruct&> m = Field(&AStruct::x, Ge(0));
DerivedStruct d;
EXPECT_TRUE(m.Matches(d));
d.x = -1;
EXPECT_FALSE(m.Matches(d));
}
// Tests that Field(&Foo::field, m) works when field's type and m's
// argument type are compatible but not the same.
TEST(FieldTest, WorksForCompatibleMatcherType) {
// The field is an int, but the inner matcher expects a signed char.
Matcher<const AStruct&> m = Field(&AStruct::x,
Matcher<signed char>(Ge(0)));
AStruct a;
EXPECT_TRUE(m.Matches(a));
a.x = -1;
EXPECT_FALSE(m.Matches(a));
}
// Tests that Field() can describe itself.
TEST(FieldTest, CanDescribeSelf) {
Matcher<const AStruct&> m = Field(&AStruct::x, Ge(0));
EXPECT_EQ("the given field is greater than or equal to 0", Describe(m));
EXPECT_EQ("the given field is not greater than or equal to 0",
DescribeNegation(m));
}
// Tests that Field() can explain the match result.
TEST(FieldTest, CanExplainMatchResult) {
Matcher<const AStruct&> m = Field(&AStruct::x, Ge(0));
AStruct a;
a.x = 1;
EXPECT_EQ("", Explain(m, a));
m = Field(&AStruct::x, GreaterThan(0));
EXPECT_EQ("the given field is 1 more than 0", Explain(m, a));
}
// Tests that Field() works when the argument is a pointer to const.
TEST(FieldForPointerTest, WorksForPointerToConst) {
Matcher<const AStruct*> m = Field(&AStruct::x, Ge(0));
AStruct a;
EXPECT_TRUE(m.Matches(&a));
a.x = -1;
EXPECT_FALSE(m.Matches(&a));
}
// Tests that Field() works when the argument is a pointer to non-const.
TEST(FieldForPointerTest, WorksForPointerToNonConst) {
Matcher<AStruct*> m = Field(&AStruct::x, Ge(0));
AStruct a;
EXPECT_TRUE(m.Matches(&a));
a.x = -1;
EXPECT_FALSE(m.Matches(&a));
}
// Tests that Field() does not match the NULL pointer.
TEST(FieldForPointerTest, DoesNotMatchNull) {
Matcher<const AStruct*> m = Field(&AStruct::x, _);
EXPECT_FALSE(m.Matches(NULL));
}
// Tests that Field(&Foo::field, ...) works when the argument's type
// is a sub-type of const Foo*.
TEST(FieldForPointerTest, WorksForArgumentOfSubType) {
// Note that the matcher expects DerivedStruct but we say AStruct
// inside Field().
Matcher<DerivedStruct*> m = Field(&AStruct::x, Ge(0));
DerivedStruct d;
EXPECT_TRUE(m.Matches(&d));
d.x = -1;
EXPECT_FALSE(m.Matches(&d));
}
// Tests that Field() can describe itself when used to match a pointer.
TEST(FieldForPointerTest, CanDescribeSelf) {
Matcher<const AStruct*> m = Field(&AStruct::x, Ge(0));
EXPECT_EQ("the given field is greater than or equal to 0", Describe(m));
EXPECT_EQ("the given field is not greater than or equal to 0",
DescribeNegation(m));
}
// Tests that Field() can explain the result of matching a pointer.
TEST(FieldForPointerTest, CanExplainMatchResult) {
Matcher<const AStruct*> m = Field(&AStruct::x, Ge(0));
AStruct a;
a.x = 1;
EXPECT_EQ("", Explain(m, static_cast<const AStruct*>(NULL)));
EXPECT_EQ("", Explain(m, &a));
m = Field(&AStruct::x, GreaterThan(0));
EXPECT_EQ("the given field is 1 more than 0", Explain(m, &a));
}
// A user-defined class for testing Property().
class AClass {
public:
AClass() : n_(0) {}
// A getter that returns a non-reference.
int n() const { return n_; }
void set_n(int new_n) { n_ = new_n; }
// A getter that returns a reference to const.
const string& s() const { return s_; }
void set_s(const string& new_s) { s_ = new_s; }
// A getter that returns a reference to non-const.
double& x() const { return x_; }
private:
int n_;
string s_;
static double x_;
};
double AClass::x_ = 0.0;
// A derived class for testing Property().
class DerivedClass : public AClass {
private:
int k_;
};
// Tests that Property(&Foo::property, ...) works when property()
// returns a non-reference.
TEST(PropertyTest, WorksForNonReferenceProperty) {
Matcher<const AClass&> m = Property(&AClass::n, Ge(0));
AClass a;
a.set_n(1);
EXPECT_TRUE(m.Matches(a));
a.set_n(-1);
EXPECT_FALSE(m.Matches(a));
}
// Tests that Property(&Foo::property, ...) works when property()
// returns a reference to const.
TEST(PropertyTest, WorksForReferenceToConstProperty) {
Matcher<const AClass&> m = Property(&AClass::s, StartsWith("hi"));
AClass a;
a.set_s("hill");
EXPECT_TRUE(m.Matches(a));
a.set_s("hole");
EXPECT_FALSE(m.Matches(a));
}
// Tests that Property(&Foo::property, ...) works when property()
// returns a reference to non-const.
TEST(PropertyTest, WorksForReferenceToNonConstProperty) {
double x = 0.0;
AClass a;
Matcher<const AClass&> m = Property(&AClass::x, Ref(x));
EXPECT_FALSE(m.Matches(a));
m = Property(&AClass::x, Not(Ref(x)));
EXPECT_TRUE(m.Matches(a));
}
// Tests that Property(&Foo::property, ...) works when the argument is
// passed by value.
TEST(PropertyTest, WorksForByValueArgument) {
Matcher<AClass> m = Property(&AClass::s, StartsWith("hi"));
AClass a;
a.set_s("hill");
EXPECT_TRUE(m.Matches(a));
a.set_s("hole");
EXPECT_FALSE(m.Matches(a));
}
// Tests that Property(&Foo::property, ...) works when the argument's
// type is a sub-type of Foo.
TEST(PropertyTest, WorksForArgumentOfSubType) {
// The matcher expects a DerivedClass, but inside the Property() we
// say AClass.
Matcher<const DerivedClass&> m = Property(&AClass::n, Ge(0));
DerivedClass d;
d.set_n(1);
EXPECT_TRUE(m.Matches(d));
d.set_n(-1);
EXPECT_FALSE(m.Matches(d));
}
// Tests that Property(&Foo::property, m) works when property()'s type
// and m's argument type are compatible but different.
TEST(PropertyTest, WorksForCompatibleMatcherType) {
// n() returns an int but the inner matcher expects a signed char.
Matcher<const AClass&> m = Property(&AClass::n,
Matcher<signed char>(Ge(0)));
AClass a;
EXPECT_TRUE(m.Matches(a));
a.set_n(-1);
EXPECT_FALSE(m.Matches(a));
}
// Tests that Property() can describe itself.
TEST(PropertyTest, CanDescribeSelf) {
Matcher<const AClass&> m = Property(&AClass::n, Ge(0));
EXPECT_EQ("the given property is greater than or equal to 0", Describe(m));
EXPECT_EQ("the given property is not greater than or equal to 0",
DescribeNegation(m));
}
// Tests that Property() can explain the match result.
TEST(PropertyTest, CanExplainMatchResult) {
Matcher<const AClass&> m = Property(&AClass::n, Ge(0));
AClass a;
a.set_n(1);
EXPECT_EQ("", Explain(m, a));
m = Property(&AClass::n, GreaterThan(0));
EXPECT_EQ("the given property is 1 more than 0", Explain(m, a));
}
// Tests that Property() works when the argument is a pointer to const.
TEST(PropertyForPointerTest, WorksForPointerToConst) {
Matcher<const AClass*> m = Property(&AClass::n, Ge(0));
AClass a;
a.set_n(1);
EXPECT_TRUE(m.Matches(&a));
a.set_n(-1);
EXPECT_FALSE(m.Matches(&a));
}
// Tests that Property() works when the argument is a pointer to non-const.
TEST(PropertyForPointerTest, WorksForPointerToNonConst) {
Matcher<AClass*> m = Property(&AClass::s, StartsWith("hi"));
AClass a;
a.set_s("hill");
EXPECT_TRUE(m.Matches(&a));
a.set_s("hole");
EXPECT_FALSE(m.Matches(&a));
}
// Tests that Property() does not match the NULL pointer.
TEST(PropertyForPointerTest, WorksForReferenceToNonConstProperty) {
Matcher<const AClass*> m = Property(&AClass::x, _);
EXPECT_FALSE(m.Matches(NULL));
}
// Tests that Property(&Foo::property, ...) works when the argument's
// type is a sub-type of const Foo*.
TEST(PropertyForPointerTest, WorksForArgumentOfSubType) {
// The matcher expects a DerivedClass, but inside the Property() we
// say AClass.
Matcher<const DerivedClass*> m = Property(&AClass::n, Ge(0));
DerivedClass d;
d.set_n(1);
EXPECT_TRUE(m.Matches(&d));
d.set_n(-1);
EXPECT_FALSE(m.Matches(&d));
}
// Tests that Property() can describe itself when used to match a pointer.
TEST(PropertyForPointerTest, CanDescribeSelf) {
Matcher<const AClass*> m = Property(&AClass::n, Ge(0));
EXPECT_EQ("the given property is greater than or equal to 0", Describe(m));
EXPECT_EQ("the given property is not greater than or equal to 0",
DescribeNegation(m));
}
// Tests that Property() can explain the result of matching a pointer.
TEST(PropertyForPointerTest, CanExplainMatchResult) {
Matcher<const AClass*> m = Property(&AClass::n, Ge(0));
AClass a;
a.set_n(1);
EXPECT_EQ("", Explain(m, static_cast<const AClass*>(NULL)));
EXPECT_EQ("", Explain(m, &a));
m = Property(&AClass::n, GreaterThan(0));
EXPECT_EQ("the given property is 1 more than 0", Explain(m, &a));
}
// Tests ResultOf.
// Tests that ResultOf(f, ...) compiles and works as expected when f is a
// function pointer.
string IntToStringFunction(int input) { return input == 1 ? "foo" : "bar"; }
TEST(ResultOfTest, WorksForFunctionPointers) {
Matcher<int> matcher = ResultOf(&IntToStringFunction, Eq(string("foo")));
EXPECT_TRUE(matcher.Matches(1));
EXPECT_FALSE(matcher.Matches(2));
}
// Tests that ResultOf() can describe itself.
TEST(ResultOfTest, CanDescribeItself) {
Matcher<int> matcher = ResultOf(&IntToStringFunction, StrEq("foo"));
EXPECT_EQ("result of the given callable is equal to \"foo\"",
Describe(matcher));
EXPECT_EQ("result of the given callable is not equal to \"foo\"",
DescribeNegation(matcher));
}
// Tests that ResultOf() can explain the match result.
int IntFunction(int input) { return input == 42 ? 80 : 90; }
TEST(ResultOfTest, CanExplainMatchResult) {
Matcher<int> matcher = ResultOf(&IntFunction, Ge(85));
EXPECT_EQ("", Explain(matcher, 36));
matcher = ResultOf(&IntFunction, GreaterThan(85));
EXPECT_EQ("result of the given callable is 5 more than 85",
Explain(matcher, 36));
}
// Tests that ResultOf(f, ...) compiles and works as expected when f(x)
// returns a non-reference.
TEST(ResultOfTest, WorksForNonReferenceResults) {
Matcher<int> matcher = ResultOf(&IntFunction, Eq(80));
EXPECT_TRUE(matcher.Matches(42));
EXPECT_FALSE(matcher.Matches(36));
}
// Tests that ResultOf(f, ...) compiles and works as expected when f(x)
// returns a reference to non-const.
double& DoubleFunction(double& input) { return input; }
Uncopyable& RefUncopyableFunction(Uncopyable& obj) {
return obj;
}
TEST(ResultOfTest, WorksForReferenceToNonConstResults) {
double x = 3.14;
double x2 = x;
Matcher<double&> matcher = ResultOf(&DoubleFunction, Ref(x));
EXPECT_TRUE(matcher.Matches(x));
EXPECT_FALSE(matcher.Matches(x2));
// Test that ResultOf works with uncopyable objects
Uncopyable obj(0);
Uncopyable obj2(0);
Matcher<Uncopyable&> matcher2 =
ResultOf(&RefUncopyableFunction, Ref(obj));
EXPECT_TRUE(matcher2.Matches(obj));
EXPECT_FALSE(matcher2.Matches(obj2));
}
// Tests that ResultOf(f, ...) compiles and works as expected when f(x)
// returns a reference to const.
const string& StringFunction(const string& input) { return input; }
TEST(ResultOfTest, WorksForReferenceToConstResults) {
string s = "foo";
string s2 = s;
Matcher<const string&> matcher = ResultOf(&StringFunction, Ref(s));
EXPECT_TRUE(matcher.Matches(s));
EXPECT_FALSE(matcher.Matches(s2));
}
// Tests that ResultOf(f, m) works when f(x) and m's
// argument types are compatible but different.
TEST(ResultOfTest, WorksForCompatibleMatcherTypes) {
// IntFunction() returns int but the inner matcher expects a signed char.
Matcher<int> matcher = ResultOf(IntFunction, Matcher<signed char>(Ge(85)));
EXPECT_TRUE(matcher.Matches(36));
EXPECT_FALSE(matcher.Matches(42));
}
#if GTEST_HAS_DEATH_TEST
// Tests that the program aborts when ResultOf is passed
// a NULL function pointer.
TEST(ResultOfDeathTest, DiesOnNullFunctionPointers) {
EXPECT_DEATH(
ResultOf(static_cast<string(*)(int)>(NULL), Eq(string("foo"))),
"NULL function pointer is passed into ResultOf\\(\\)\\.");
}
#endif // GTEST_HAS_DEATH_TEST
// Tests that ResultOf(f, ...) compiles and works as expected when f is a
// function reference.
TEST(ResultOfTest, WorksForFunctionReferences) {
Matcher<int> matcher = ResultOf(IntToStringFunction, StrEq("foo"));
EXPECT_TRUE(matcher.Matches(1));
EXPECT_FALSE(matcher.Matches(2));
}
// Tests that ResultOf(f, ...) compiles and works as expected when f is a
// function object.
struct Functor : public ::std::unary_function<int, string> {
result_type operator()(argument_type input) const {
return IntToStringFunction(input);
}
};
TEST(ResultOfTest, WorksForFunctors) {
Matcher<int> matcher = ResultOf(Functor(), Eq(string("foo")));
EXPECT_TRUE(matcher.Matches(1));
EXPECT_FALSE(matcher.Matches(2));
}
// Tests that ResultOf(f, ...) compiles and works as expected when f is a
// functor with more then one operator() defined. ResultOf() must work
// for each defined operator().
struct PolymorphicFunctor {
typedef int result_type;
int operator()(int n) { return n; }
int operator()(const char* s) { return static_cast<int>(strlen(s)); }
};
TEST(ResultOfTest, WorksForPolymorphicFunctors) {
Matcher<int> matcher_int = ResultOf(PolymorphicFunctor(), Ge(5));
EXPECT_TRUE(matcher_int.Matches(10));
EXPECT_FALSE(matcher_int.Matches(2));
Matcher<const char*> matcher_string = ResultOf(PolymorphicFunctor(), Ge(5));
EXPECT_TRUE(matcher_string.Matches("long string"));
EXPECT_FALSE(matcher_string.Matches("shrt"));
}
const int* ReferencingFunction(const int& n) { return &n; }
struct ReferencingFunctor {
typedef const int* result_type;
result_type operator()(const int& n) { return &n; }
};
TEST(ResultOfTest, WorksForReferencingCallables) {
const int n = 1;
const int n2 = 1;
Matcher<const int&> matcher2 = ResultOf(ReferencingFunction, Eq(&n));
EXPECT_TRUE(matcher2.Matches(n));
EXPECT_FALSE(matcher2.Matches(n2));
Matcher<const int&> matcher3 = ResultOf(ReferencingFunctor(), Eq(&n));
EXPECT_TRUE(matcher3.Matches(n));
EXPECT_FALSE(matcher3.Matches(n2));
}
class DivisibleByImpl {
public:
explicit DivisibleByImpl(int divider) : divider_(divider) {}
template <typename T>
bool Matches(const T& n) const {
return (n % divider_) == 0;
}
void DescribeTo(::std::ostream* os) const {
*os << "is divisible by " << divider_;
}
void DescribeNegationTo(::std::ostream* os) const {
*os << "is not divisible by " << divider_;
}
void set_divider(int divider) { divider_ = divider; }
int divider() const { return divider_; }
private:
int divider_;
};
// For testing using ExplainMatchResultTo() with polymorphic matchers.
template <typename T>
void ExplainMatchResultTo(const DivisibleByImpl& impl, const T& n,
::std::ostream* os) {
*os << "is " << (n % impl.divider()) << " modulo "
<< impl.divider();
}
PolymorphicMatcher<DivisibleByImpl> DivisibleBy(int n) {
return MakePolymorphicMatcher(DivisibleByImpl(n));
}
// Tests that when AllOf() fails, only the first failing matcher is
// asked to explain why.
TEST(ExplainMatchResultTest, AllOf_False_False) {
const Matcher<int> m = AllOf(DivisibleBy(4), DivisibleBy(3));
EXPECT_EQ("is 1 modulo 4", Explain(m, 5));
}
// Tests that when AllOf() fails, only the first failing matcher is
// asked to explain why.
TEST(ExplainMatchResultTest, AllOf_False_True) {
const Matcher<int> m = AllOf(DivisibleBy(4), DivisibleBy(3));
EXPECT_EQ("is 2 modulo 4", Explain(m, 6));
}
// Tests that when AllOf() fails, only the first failing matcher is
// asked to explain why.
TEST(ExplainMatchResultTest, AllOf_True_False) {
const Matcher<int> m = AllOf(Ge(1), DivisibleBy(3));
EXPECT_EQ("is 2 modulo 3", Explain(m, 5));
}
// Tests that when AllOf() succeeds, all matchers are asked to explain
// why.
TEST(ExplainMatchResultTest, AllOf_True_True) {
const Matcher<int> m = AllOf(DivisibleBy(2), DivisibleBy(3));
EXPECT_EQ("is 0 modulo 2; is 0 modulo 3", Explain(m, 6));
}
TEST(ExplainMatchResultTest, AllOf_True_True_2) {
const Matcher<int> m = AllOf(Ge(2), Le(3));
EXPECT_EQ("", Explain(m, 2));
}
TEST(ExplainmatcherResultTest, MonomorphicMatcher) {
const Matcher<int> m = GreaterThan(5);
EXPECT_EQ("is 1 more than 5", Explain(m, 6));
}
// The following two tests verify that values without a public copy
// ctor can be used as arguments to matchers like Eq(), Ge(), and etc
// with the help of ByRef().
class NotCopyable {
public:
explicit NotCopyable(int value) : value_(value) {}
int value() const { return value_; }
bool operator==(const NotCopyable& rhs) const {
return value() == rhs.value();
}
bool operator>=(const NotCopyable& rhs) const {
return value() >= rhs.value();
}
private:
int value_;
GTEST_DISALLOW_COPY_AND_ASSIGN_(NotCopyable);
};
TEST(ByRefTest, AllowsNotCopyableConstValueInMatchers) {
const NotCopyable const_value1(1);
const Matcher<const NotCopyable&> m = Eq(ByRef(const_value1));
const NotCopyable n1(1), n2(2);
EXPECT_TRUE(m.Matches(n1));
EXPECT_FALSE(m.Matches(n2));
}
TEST(ByRefTest, AllowsNotCopyableValueInMatchers) {
NotCopyable value2(2);
const Matcher<NotCopyable&> m = Ge(ByRef(value2));
NotCopyable n1(1), n2(2);
EXPECT_FALSE(m.Matches(n1));
EXPECT_TRUE(m.Matches(n2));
}
#if GTEST_HAS_TYPED_TEST
// Tests ContainerEq with different container types, and
// different element types.
template <typename T>
class ContainerEqTest : public testing::Test {};
typedef testing::Types<
std::set<int>,
std::vector<size_t>,
std::multiset<size_t>,
std::list<int> >
ContainerEqTestTypes;
TYPED_TEST_CASE(ContainerEqTest, ContainerEqTestTypes);
// Tests that the filled container is equal to itself.
TYPED_TEST(ContainerEqTest, EqualsSelf) {
static const int vals[] = {1, 1, 2, 3, 5, 8};
TypeParam my_set(vals, vals + 6);
const Matcher<TypeParam> m = ContainerEq(my_set);
EXPECT_TRUE(m.Matches(my_set));
EXPECT_EQ("", Explain(m, my_set));
}
// Tests that missing values are reported.
TYPED_TEST(ContainerEqTest, ValueMissing) {
static const int vals[] = {1, 1, 2, 3, 5, 8};
static const int test_vals[] = {2, 1, 8, 5};
TypeParam my_set(vals, vals + 6);
TypeParam test_set(test_vals, test_vals + 4);
const Matcher<TypeParam> m = ContainerEq(my_set);
EXPECT_FALSE(m.Matches(test_set));
EXPECT_EQ("Not in actual: 3", Explain(m, test_set));
}
// Tests that added values are reported.
TYPED_TEST(ContainerEqTest, ValueAdded) {
static const int vals[] = {1, 1, 2, 3, 5, 8};
static const int test_vals[] = {1, 2, 3, 5, 8, 46};
TypeParam my_set(vals, vals + 6);
TypeParam test_set(test_vals, test_vals + 6);
const Matcher<const TypeParam&> m = ContainerEq(my_set);
EXPECT_FALSE(m.Matches(test_set));
EXPECT_EQ("Only in actual: 46", Explain(m, test_set));
}
// Tests that added and missing values are reported together.
TYPED_TEST(ContainerEqTest, ValueAddedAndRemoved) {
static const int vals[] = {1, 1, 2, 3, 5, 8};
static const int test_vals[] = {1, 2, 3, 8, 46};
TypeParam my_set(vals, vals + 6);
TypeParam test_set(test_vals, test_vals + 5);
const Matcher<TypeParam> m = ContainerEq(my_set);
EXPECT_FALSE(m.Matches(test_set));
EXPECT_EQ("Only in actual: 46; not in actual: 5", Explain(m, test_set));
}
// Tests duplicated value -- expect no explanation.
TYPED_TEST(ContainerEqTest, DuplicateDifference) {
static const int vals[] = {1, 1, 2, 3, 5, 8};
static const int test_vals[] = {1, 2, 3, 5, 8};
TypeParam my_set(vals, vals + 6);
TypeParam test_set(test_vals, test_vals + 5);
const Matcher<const TypeParam&> m = ContainerEq(my_set);
// Depending on the container, match may be true or false
// But in any case there should be no explanation.
EXPECT_EQ("", Explain(m, test_set));
}
#endif // GTEST_HAS_TYPED_TEST
// Tests that mutliple missing values are reported.
// Using just vector here, so order is predicatble.
TEST(ContainerEqExtraTest, MultipleValuesMissing) {
static const int vals[] = {1, 1, 2, 3, 5, 8};
static const int test_vals[] = {2, 1, 5};
std::vector<int> my_set(vals, vals + 6);
std::vector<int> test_set(test_vals, test_vals + 3);
const Matcher<std::vector<int> > m = ContainerEq(my_set);
EXPECT_FALSE(m.Matches(test_set));
EXPECT_EQ("Not in actual: 3, 8", Explain(m, test_set));
}
// Tests that added values are reported.
// Using just vector here, so order is predicatble.
TEST(ContainerEqExtraTest, MultipleValuesAdded) {
static const int vals[] = {1, 1, 2, 3, 5, 8};
static const int test_vals[] = {1, 2, 92, 3, 5, 8, 46};
std::list<size_t> my_set(vals, vals + 6);
std::list<size_t> test_set(test_vals, test_vals + 7);
const Matcher<const std::list<size_t>&> m = ContainerEq(my_set);
EXPECT_FALSE(m.Matches(test_set));
EXPECT_EQ("Only in actual: 92, 46", Explain(m, test_set));
}
// Tests that added and missing values are reported together.
TEST(ContainerEqExtraTest, MultipleValuesAddedAndRemoved) {
static const int vals[] = {1, 1, 2, 3, 5, 8};
static const int test_vals[] = {1, 2, 3, 92, 46};
std::list<size_t> my_set(vals, vals + 6);
std::list<size_t> test_set(test_vals, test_vals + 5);
const Matcher<const std::list<size_t> > m = ContainerEq(my_set);
EXPECT_FALSE(m.Matches(test_set));
EXPECT_EQ("Only in actual: 92, 46; not in actual: 5, 8",
Explain(m, test_set));
}
// Tests to see that duplicate elements are detected,
// but (as above) not reported in the explanation.
TEST(ContainerEqExtraTest, MultiSetOfIntDuplicateDifference) {
static const int vals[] = {1, 1, 2, 3, 5, 8};
static const int test_vals[] = {1, 2, 3, 5, 8};
std::vector<int> my_set(vals, vals + 6);
std::vector<int> test_set(test_vals, test_vals + 5);
const Matcher<std::vector<int> > m = ContainerEq(my_set);
EXPECT_TRUE(m.Matches(my_set));
EXPECT_FALSE(m.Matches(test_set));
// There is nothing to report when both sets contain all the same values.
EXPECT_EQ("", Explain(m, test_set));
}
// Tests that ContainerEq works for non-trivial associative containers,
// like maps.
TEST(ContainerEqExtraTest, WorksForMaps) {
std::map<int, std::string> my_map;
my_map[0] = "a";
my_map[1] = "b";
std::map<int, std::string> test_map;
test_map[0] = "aa";
test_map[1] = "b";
const Matcher<const std::map<int, std::string>&> m = ContainerEq(my_map);
EXPECT_TRUE(m.Matches(my_map));
EXPECT_FALSE(m.Matches(test_map));
EXPECT_EQ("Only in actual: (0, \"aa\"); not in actual: (0, \"a\")",
Explain(m, test_map));
}
TEST(ContainerEqExtraTest, WorksForNativeArray) {
int a1[] = { 1, 2, 3 };
int a2[] = { 1, 2, 3 };
int b[] = { 1, 2, 4 };
EXPECT_THAT(a1, ContainerEq(a2));
EXPECT_THAT(a1, Not(ContainerEq(b)));
}
TEST(ContainerEqExtraTest, WorksForTwoDimensionalNativeArray) {
const char a1[][3] = { "hi", "lo" };
const char a2[][3] = { "hi", "lo" };
const char b[][3] = { "lo", "hi" };
// Tests using ContainerEq() in the first dimension.
EXPECT_THAT(a1, ContainerEq(a2));
EXPECT_THAT(a1, Not(ContainerEq(b)));
// Tests using ContainerEq() in the second dimension.
EXPECT_THAT(a1, ElementsAre(ContainerEq(a2[0]), ContainerEq(a2[1])));
EXPECT_THAT(a1, ElementsAre(Not(ContainerEq(b[0])), ContainerEq(a2[1])));
}
TEST(ContainerEqExtraTest, WorksForNativeArrayAsTuple) {
const int a1[] = { 1, 2, 3 };
const int a2[] = { 1, 2, 3 };
const int b[] = { 1, 2, 3, 4 };
const int* const p1 = a1;
EXPECT_THAT(make_tuple(p1, 3), ContainerEq(a2));
EXPECT_THAT(make_tuple(p1, 3), Not(ContainerEq(b)));
const int c[] = { 1, 3, 2 };
EXPECT_THAT(make_tuple(p1, 3), Not(ContainerEq(c)));
}
TEST(ContainerEqExtraTest, CopiesNativeArrayParameter) {
std::string a1[][3] = {
{ "hi", "hello", "ciao" },
{ "bye", "see you", "ciao" }
};
std::string a2[][3] = {
{ "hi", "hello", "ciao" },
{ "bye", "see you", "ciao" }
};
const Matcher<const std::string(&)[2][3]> m = ContainerEq(a2);
EXPECT_THAT(a1, m);
a2[0][0] = "ha";
EXPECT_THAT(a1, m);
}
// Tests GetParamIndex().
TEST(GetParamIndexTest, WorksForEmptyParamList) {
const char* params[] = { NULL };
EXPECT_EQ(kTupleInterpolation, GetParamIndex(params, "*"));
EXPECT_EQ(kInvalidInterpolation, GetParamIndex(params, "a"));
}
TEST(GetParamIndexTest, RecognizesStar) {
const char* params[] = { "a", "b", NULL };
EXPECT_EQ(kTupleInterpolation, GetParamIndex(params, "*"));
}
TEST(GetParamIndexTest, RecognizesKnownParam) {
const char* params[] = { "foo", "bar", NULL };
EXPECT_EQ(0, GetParamIndex(params, "foo"));
EXPECT_EQ(1, GetParamIndex(params, "bar"));
}
TEST(GetParamIndexTest, RejectsUnknownParam) {
const char* params[] = { "foo", "bar", NULL };
EXPECT_EQ(kInvalidInterpolation, GetParamIndex(params, "foobar"));
}
// Tests SkipPrefix().
TEST(SkipPrefixTest, SkipsWhenPrefixMatches) {
const char* const str = "hello";
const char* p = str;
EXPECT_TRUE(SkipPrefix("", &p));
EXPECT_EQ(str, p);
p = str;
EXPECT_TRUE(SkipPrefix("hell", &p));
EXPECT_EQ(str + 4, p);
}
TEST(SkipPrefixTest, DoesNotSkipWhenPrefixDoesNotMatch) {
const char* const str = "world";
const char* p = str;
EXPECT_FALSE(SkipPrefix("W", &p));
EXPECT_EQ(str, p);
p = str;
EXPECT_FALSE(SkipPrefix("world!", &p));
EXPECT_EQ(str, p);
}
// Tests FormatMatcherDescriptionSyntaxError().
TEST(FormatMatcherDescriptionSyntaxErrorTest, FormatsCorrectly) {
const char* const description = "hello%world";
EXPECT_EQ("Syntax error at index 5 in matcher description \"hello%world\": ",
FormatMatcherDescriptionSyntaxError(description, description + 5));
}
// Tests ValidateMatcherDescription().
TEST(ValidateMatcherDescriptionTest, AcceptsEmptyDescription) {
const char* params[] = { "foo", "bar", NULL };
EXPECT_THAT(ValidateMatcherDescription(params, ""),
ElementsAre());
}
TEST(ValidateMatcherDescriptionTest,
AcceptsNonEmptyDescriptionWithNoInterpolation) {
const char* params[] = { "foo", "bar", NULL };
EXPECT_THAT(ValidateMatcherDescription(params, "a simple description"),
ElementsAre());
}
// We use MATCHER_P3() to define a matcher for testing
// ValidateMatcherDescription(); otherwise we'll end up with much
// plumbing code. This is not circular as
// ValidateMatcherDescription() doesn't affect whether the matcher
// matches a value or not.
MATCHER_P3(EqInterpolation, start, end, index, "equals Interpolation%(*)s") {
return arg.start_pos == start && arg.end_pos == end &&
arg.param_index == index;
}
TEST(ValidateMatcherDescriptionTest, AcceptsPercentInterpolation) {
const char* params[] = { "foo", NULL };
const char* const desc = "one %%";
EXPECT_THAT(ValidateMatcherDescription(params, desc),
ElementsAre(EqInterpolation(desc + 4, desc + 6,
kPercentInterpolation)));
}
TEST(ValidateMatcherDescriptionTest, AcceptsTupleInterpolation) {
const char* params[] = { "foo", "bar", "baz", NULL };
const char* const desc = "%(*)s after";
EXPECT_THAT(ValidateMatcherDescription(params, desc),
ElementsAre(EqInterpolation(desc, desc + 5,
kTupleInterpolation)));
}
TEST(ValidateMatcherDescriptionTest, AcceptsParamInterpolation) {
const char* params[] = { "foo", "bar", "baz", NULL };
const char* const desc = "a %(bar)s.";
EXPECT_THAT(ValidateMatcherDescription(params, desc),
ElementsAre(EqInterpolation(desc + 2, desc + 9, 1)));
}
TEST(ValidateMatcherDescriptionTest, AcceptsMultiplenterpolations) {
const char* params[] = { "foo", "bar", "baz", NULL };
const char* const desc = "%(baz)s %(foo)s %(bar)s";
EXPECT_THAT(ValidateMatcherDescription(params, desc),
ElementsAre(EqInterpolation(desc, desc + 7, 2),
EqInterpolation(desc + 8, desc + 15, 0),
EqInterpolation(desc + 16, desc + 23, 1)));
}
TEST(ValidateMatcherDescriptionTest, AcceptsRepeatedParams) {
const char* params[] = { "foo", "bar", NULL };
const char* const desc = "%(foo)s and %(foo)s";
EXPECT_THAT(ValidateMatcherDescription(params, desc),
ElementsAre(EqInterpolation(desc, desc + 7, 0),
EqInterpolation(desc + 12, desc + 19, 0)));
}
TEST(ValidateMatcherDescriptionTest, RejectsUnknownParam) {
const char* params[] = { "a", "bar", NULL };
EXPECT_NONFATAL_FAILURE({
EXPECT_THAT(ValidateMatcherDescription(params, "%(foo)s"),
ElementsAre());
}, "Syntax error at index 2 in matcher description \"%(foo)s\": "
"\"foo\" is an invalid parameter name.");
}
TEST(ValidateMatcherDescriptionTest, RejectsUnfinishedParam) {
const char* params[] = { "a", "bar", NULL };
EXPECT_NONFATAL_FAILURE({
EXPECT_THAT(ValidateMatcherDescription(params, "%(foo)"),
ElementsAre());
}, "Syntax error at index 0 in matcher description \"%(foo)\": "
"an interpolation must end with \")s\", but \"%(foo)\" does not.");
EXPECT_NONFATAL_FAILURE({
EXPECT_THAT(ValidateMatcherDescription(params, "x%(a"),
ElementsAre());
}, "Syntax error at index 1 in matcher description \"x%(a\": "
"an interpolation must end with \")s\", but \"%(a\" does not.");
}
TEST(ValidateMatcherDescriptionTest, RejectsSinglePercent) {
const char* params[] = { "a", NULL };
EXPECT_NONFATAL_FAILURE({
EXPECT_THAT(ValidateMatcherDescription(params, "a %."),
ElementsAre());
}, "Syntax error at index 2 in matcher description \"a %.\": "
"use \"%%\" instead of \"%\" to print \"%\".");
}
// Tests JoinAsTuple().
TEST(JoinAsTupleTest, JoinsEmptyTuple) {
EXPECT_EQ("", JoinAsTuple(Strings()));
}
TEST(JoinAsTupleTest, JoinsOneTuple) {
const char* fields[] = { "1" };
EXPECT_EQ("1", JoinAsTuple(Strings(fields, fields + 1)));
}
TEST(JoinAsTupleTest, JoinsTwoTuple) {
const char* fields[] = { "1", "a" };
EXPECT_EQ("(1, a)", JoinAsTuple(Strings(fields, fields + 2)));
}
TEST(JoinAsTupleTest, JoinsTenTuple) {
const char* fields[] = { "1", "2", "3", "4", "5", "6", "7", "8", "9", "10" };
EXPECT_EQ("(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)",
JoinAsTuple(Strings(fields, fields + 10)));
}
// Tests FormatMatcherDescription().
TEST(FormatMatcherDescriptionTest, WorksForEmptyDescription) {
EXPECT_EQ("is even",
FormatMatcherDescription("IsEven", "", Interpolations(),
Strings()));
const char* params[] = { "5" };
EXPECT_EQ("equals 5",
FormatMatcherDescription("Equals", "", Interpolations(),
Strings(params, params + 1)));
const char* params2[] = { "5", "8" };
EXPECT_EQ("is in range (5, 8)",
FormatMatcherDescription("IsInRange", "", Interpolations(),
Strings(params2, params2 + 2)));
}
TEST(FormatMatcherDescriptionTest, WorksForDescriptionWithNoInterpolation) {
EXPECT_EQ("is positive",
FormatMatcherDescription("Gt0", "is positive", Interpolations(),
Strings()));
const char* params[] = { "5", "6" };
EXPECT_EQ("is negative",
FormatMatcherDescription("Lt0", "is negative", Interpolations(),
Strings(params, params + 2)));
}
TEST(FormatMatcherDescriptionTest,
WorksWhenDescriptionStartsWithInterpolation) {
const char* params[] = { "5" };
const char* const desc = "%(num)s times bigger";
const Interpolation interp[] = { Interpolation(desc, desc + 7, 0) };
EXPECT_EQ("5 times bigger",
FormatMatcherDescription("Foo", desc,
Interpolations(interp, interp + 1),
Strings(params, params + 1)));
}
TEST(FormatMatcherDescriptionTest,
WorksWhenDescriptionEndsWithInterpolation) {
const char* params[] = { "5", "6" };
const char* const desc = "is bigger than %(y)s";
const Interpolation interp[] = { Interpolation(desc + 15, desc + 20, 1) };
EXPECT_EQ("is bigger than 6",
FormatMatcherDescription("Foo", desc,
Interpolations(interp, interp + 1),
Strings(params, params + 2)));
}
TEST(FormatMatcherDescriptionTest,
WorksWhenDescriptionStartsAndEndsWithInterpolation) {
const char* params[] = { "5", "6" };
const char* const desc = "%(x)s <= arg <= %(y)s";
const Interpolation interp[] = {
Interpolation(desc, desc + 5, 0),
Interpolation(desc + 16, desc + 21, 1)
};
EXPECT_EQ("5 <= arg <= 6",
FormatMatcherDescription("Foo", desc,
Interpolations(interp, interp + 2),
Strings(params, params + 2)));
}
TEST(FormatMatcherDescriptionTest,
WorksWhenDescriptionDoesNotStartOrEndWithInterpolation) {
const char* params[] = { "5.2" };
const char* const desc = "has %(x)s cents";
const Interpolation interp[] = { Interpolation(desc + 4, desc + 9, 0) };
EXPECT_EQ("has 5.2 cents",
FormatMatcherDescription("Foo", desc,
Interpolations(interp, interp + 1),
Strings(params, params + 1)));
}
TEST(FormatMatcherDescriptionTest,
WorksWhenDescriptionContainsMultipleInterpolations) {
const char* params[] = { "5", "6" };
const char* const desc = "in %(*)s or [%(x)s, %(y)s]";
const Interpolation interp[] = {
Interpolation(desc + 3, desc + 8, kTupleInterpolation),
Interpolation(desc + 13, desc + 18, 0),
Interpolation(desc + 20, desc + 25, 1)
};
EXPECT_EQ("in (5, 6) or [5, 6]",
FormatMatcherDescription("Foo", desc,
Interpolations(interp, interp + 3),
Strings(params, params + 2)));
}
TEST(FormatMatcherDescriptionTest,
WorksWhenDescriptionContainsRepeatedParams) {
const char* params[] = { "9" };
const char* const desc = "in [-%(x)s, %(x)s]";
const Interpolation interp[] = {
Interpolation(desc + 5, desc + 10, 0),
Interpolation(desc + 12, desc + 17, 0)
};
EXPECT_EQ("in [-9, 9]",
FormatMatcherDescription("Foo", desc,
Interpolations(interp, interp + 2),
Strings(params, params + 1)));
}
TEST(FormatMatcherDescriptionTest,
WorksForDescriptionWithInvalidInterpolation) {
const char* params[] = { "9" };
const char* const desc = "> %(x)s %(x)";
const Interpolation interp[] = { Interpolation(desc + 2, desc + 7, 0) };
EXPECT_EQ("> 9 %(x)",
FormatMatcherDescription("Foo", desc,
Interpolations(interp, interp + 1),
Strings(params, params + 1)));
}
// Tests PolymorphicMatcher::mutable_impl().
TEST(PolymorphicMatcherTest, CanAccessMutableImpl) {
PolymorphicMatcher<DivisibleByImpl> m(DivisibleByImpl(42));
DivisibleByImpl& impl = m.mutable_impl();
EXPECT_EQ(42, impl.divider());
impl.set_divider(0);
EXPECT_EQ(0, m.mutable_impl().divider());
}
// Tests PolymorphicMatcher::impl().
TEST(PolymorphicMatcherTest, CanAccessImpl) {
const PolymorphicMatcher<DivisibleByImpl> m(DivisibleByImpl(42));
const DivisibleByImpl& impl = m.impl();
EXPECT_EQ(42, impl.divider());
}
} // namespace gmock_matchers_test
} // namespace testing
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