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googletest/test/gtest-port_test.cc

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// Copyright 2008, 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.
//
// Authors: vladl@google.com (Vlad Losev), wan@google.com (Zhanyong Wan)
//
// This file tests the internal cross-platform support utilities.
#include <gtest/internal/gtest-port.h>
#include <stdio.h>
#if GTEST_OS_MAC
#include <time.h>
#endif // GTEST_OS_MAC
#include <utility> // For std::pair and std::make_pair.
#include <gtest/gtest.h>
#include <gtest/gtest-spi.h>
// Indicates that this translation unit is part of Google Test's
// implementation. It must come before gtest-internal-inl.h is
// included, or there will be a compiler error. This trick is to
// prevent a user from accidentally including gtest-internal-inl.h in
// his code.
#define GTEST_IMPLEMENTATION_ 1
#include "src/gtest-internal-inl.h"
#undef GTEST_IMPLEMENTATION_
using std::make_pair;
using std::pair;
namespace testing {
namespace internal {
// Tests that the element_type typedef is available in scoped_ptr and refers
// to the parameter type.
TEST(ScopedPtrTest, DefinesElementType) {
StaticAssertTypeEq<int, ::testing::internal::scoped_ptr<int>::element_type>();
}
// TODO(vladl@google.com): Implement THE REST of scoped_ptr tests.
TEST(GtestCheckSyntaxTest, BehavesLikeASingleStatement) {
if (AlwaysFalse())
GTEST_CHECK_(false) << "This should never be executed; "
"It's a compilation test only.";
if (AlwaysTrue())
GTEST_CHECK_(true);
else
; // NOLINT
if (AlwaysFalse())
; // NOLINT
else
GTEST_CHECK_(true) << "";
}
TEST(GtestCheckSyntaxTest, WorksWithSwitch) {
switch (0) {
case 1:
break;
default:
GTEST_CHECK_(true);
}
switch(0)
case 0:
GTEST_CHECK_(true) << "Check failed in switch case";
}
#if GTEST_OS_MAC
void* ThreadFunc(void* data) {
pthread_mutex_t* mutex = static_cast<pthread_mutex_t*>(data);
pthread_mutex_lock(mutex);
pthread_mutex_unlock(mutex);
return NULL;
}
TEST(GetThreadCountTest, ReturnsCorrectValue) {
EXPECT_EQ(1U, GetThreadCount());
pthread_mutex_t mutex;
pthread_attr_t attr;
pthread_t thread_id;
// TODO(vladl@google.com): turn mutex into internal::Mutex for automatic
// destruction.
pthread_mutex_init(&mutex, NULL);
pthread_mutex_lock(&mutex);
ASSERT_EQ(0, pthread_attr_init(&attr));
ASSERT_EQ(0, pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE));
const int status = pthread_create(&thread_id, &attr, &ThreadFunc, &mutex);
ASSERT_EQ(0, pthread_attr_destroy(&attr));
ASSERT_EQ(0, status);
EXPECT_EQ(2U, GetThreadCount());
pthread_mutex_unlock(&mutex);
void* dummy;
ASSERT_EQ(0, pthread_join(thread_id, &dummy));
// MacOS X may not immediately report the updated thread count after
// joining a thread, causing flakiness in this test. To counter that, we
// wait for up to .5 seconds for the OS to report the correct value.
for (int i = 0; i < 5; ++i) {
if (GetThreadCount() == 1)
break;
SleepMilliseconds(100);
}
EXPECT_EQ(1U, GetThreadCount());
pthread_mutex_destroy(&mutex);
}
#else
TEST(GetThreadCountTest, ReturnsZeroWhenUnableToCountThreads) {
EXPECT_EQ(0U, GetThreadCount());
}
#endif // GTEST_OS_MAC
TEST(GtestCheckDeathTest, DiesWithCorrectOutputOnFailure) {
const bool a_false_condition = false;
const char regex[] =
#ifdef _MSC_VER
"gtest-port_test\\.cc\\(\\d+\\):"
#else
"gtest-port_test\\.cc:[0-9]+"
#endif // _MSC_VER
".*a_false_condition.*Extra info.*";
EXPECT_DEATH_IF_SUPPORTED(GTEST_CHECK_(a_false_condition) << "Extra info",
regex);
}
#if GTEST_HAS_DEATH_TEST
TEST(GtestCheckDeathTest, LivesSilentlyOnSuccess) {
EXPECT_EXIT({
GTEST_CHECK_(true) << "Extra info";
::std::cerr << "Success\n";
exit(0); },
::testing::ExitedWithCode(0), "Success");
}
#endif // GTEST_HAS_DEATH_TEST
#if GTEST_USES_POSIX_RE
#if GTEST_HAS_TYPED_TEST
template <typename Str>
class RETest : public ::testing::Test {};
// Defines StringTypes as the list of all string types that class RE
// supports.
typedef testing::Types<
::std::string,
#if GTEST_HAS_GLOBAL_STRING
::string,
#endif // GTEST_HAS_GLOBAL_STRING
const char*> StringTypes;
TYPED_TEST_CASE(RETest, StringTypes);
// Tests RE's implicit constructors.
TYPED_TEST(RETest, ImplicitConstructorWorks) {
const RE empty(TypeParam(""));
EXPECT_STREQ("", empty.pattern());
const RE simple(TypeParam("hello"));
EXPECT_STREQ("hello", simple.pattern());
const RE normal(TypeParam(".*(\\w+)"));
EXPECT_STREQ(".*(\\w+)", normal.pattern());
}
// Tests that RE's constructors reject invalid regular expressions.
TYPED_TEST(RETest, RejectsInvalidRegex) {
EXPECT_NONFATAL_FAILURE({
const RE invalid(TypeParam("?"));
}, "\"?\" is not a valid POSIX Extended regular expression.");
}
// Tests RE::FullMatch().
TYPED_TEST(RETest, FullMatchWorks) {
const RE empty(TypeParam(""));
EXPECT_TRUE(RE::FullMatch(TypeParam(""), empty));
EXPECT_FALSE(RE::FullMatch(TypeParam("a"), empty));
const RE re(TypeParam("a.*z"));
EXPECT_TRUE(RE::FullMatch(TypeParam("az"), re));
EXPECT_TRUE(RE::FullMatch(TypeParam("axyz"), re));
EXPECT_FALSE(RE::FullMatch(TypeParam("baz"), re));
EXPECT_FALSE(RE::FullMatch(TypeParam("azy"), re));
}
// Tests RE::PartialMatch().
TYPED_TEST(RETest, PartialMatchWorks) {
const RE empty(TypeParam(""));
EXPECT_TRUE(RE::PartialMatch(TypeParam(""), empty));
EXPECT_TRUE(RE::PartialMatch(TypeParam("a"), empty));
const RE re(TypeParam("a.*z"));
EXPECT_TRUE(RE::PartialMatch(TypeParam("az"), re));
EXPECT_TRUE(RE::PartialMatch(TypeParam("axyz"), re));
EXPECT_TRUE(RE::PartialMatch(TypeParam("baz"), re));
EXPECT_TRUE(RE::PartialMatch(TypeParam("azy"), re));
EXPECT_FALSE(RE::PartialMatch(TypeParam("zza"), re));
}
#endif // GTEST_HAS_TYPED_TEST
#elif GTEST_USES_SIMPLE_RE
TEST(IsInSetTest, NulCharIsNotInAnySet) {
EXPECT_FALSE(IsInSet('\0', ""));
EXPECT_FALSE(IsInSet('\0', "\0"));
EXPECT_FALSE(IsInSet('\0', "a"));
}
TEST(IsInSetTest, WorksForNonNulChars) {
EXPECT_FALSE(IsInSet('a', "Ab"));
EXPECT_FALSE(IsInSet('c', ""));
EXPECT_TRUE(IsInSet('b', "bcd"));
EXPECT_TRUE(IsInSet('b', "ab"));
}
TEST(IsDigitTest, IsFalseForNonDigit) {
EXPECT_FALSE(IsDigit('\0'));
EXPECT_FALSE(IsDigit(' '));
EXPECT_FALSE(IsDigit('+'));
EXPECT_FALSE(IsDigit('-'));
EXPECT_FALSE(IsDigit('.'));
EXPECT_FALSE(IsDigit('a'));
}
TEST(IsDigitTest, IsTrueForDigit) {
EXPECT_TRUE(IsDigit('0'));
EXPECT_TRUE(IsDigit('1'));
EXPECT_TRUE(IsDigit('5'));
EXPECT_TRUE(IsDigit('9'));
}
TEST(IsPunctTest, IsFalseForNonPunct) {
EXPECT_FALSE(IsPunct('\0'));
EXPECT_FALSE(IsPunct(' '));
EXPECT_FALSE(IsPunct('\n'));
EXPECT_FALSE(IsPunct('a'));
EXPECT_FALSE(IsPunct('0'));
}
TEST(IsPunctTest, IsTrueForPunct) {
for (const char* p = "^-!\"#$%&'()*+,./:;<=>?@[\\]_`{|}~"; *p; p++) {
EXPECT_PRED1(IsPunct, *p);
}
}
TEST(IsRepeatTest, IsFalseForNonRepeatChar) {
EXPECT_FALSE(IsRepeat('\0'));
EXPECT_FALSE(IsRepeat(' '));
EXPECT_FALSE(IsRepeat('a'));
EXPECT_FALSE(IsRepeat('1'));
EXPECT_FALSE(IsRepeat('-'));
}
TEST(IsRepeatTest, IsTrueForRepeatChar) {
EXPECT_TRUE(IsRepeat('?'));
EXPECT_TRUE(IsRepeat('*'));
EXPECT_TRUE(IsRepeat('+'));
}
TEST(IsWhiteSpaceTest, IsFalseForNonWhiteSpace) {
EXPECT_FALSE(IsWhiteSpace('\0'));
EXPECT_FALSE(IsWhiteSpace('a'));
EXPECT_FALSE(IsWhiteSpace('1'));
EXPECT_FALSE(IsWhiteSpace('+'));
EXPECT_FALSE(IsWhiteSpace('_'));
}
TEST(IsWhiteSpaceTest, IsTrueForWhiteSpace) {
EXPECT_TRUE(IsWhiteSpace(' '));
EXPECT_TRUE(IsWhiteSpace('\n'));
EXPECT_TRUE(IsWhiteSpace('\r'));
EXPECT_TRUE(IsWhiteSpace('\t'));
EXPECT_TRUE(IsWhiteSpace('\v'));
EXPECT_TRUE(IsWhiteSpace('\f'));
}
TEST(IsWordCharTest, IsFalseForNonWordChar) {
EXPECT_FALSE(IsWordChar('\0'));
EXPECT_FALSE(IsWordChar('+'));
EXPECT_FALSE(IsWordChar('.'));
EXPECT_FALSE(IsWordChar(' '));
EXPECT_FALSE(IsWordChar('\n'));
}
TEST(IsWordCharTest, IsTrueForLetter) {
EXPECT_TRUE(IsWordChar('a'));
EXPECT_TRUE(IsWordChar('b'));
EXPECT_TRUE(IsWordChar('A'));
EXPECT_TRUE(IsWordChar('Z'));
}
TEST(IsWordCharTest, IsTrueForDigit) {
EXPECT_TRUE(IsWordChar('0'));
EXPECT_TRUE(IsWordChar('1'));
EXPECT_TRUE(IsWordChar('7'));
EXPECT_TRUE(IsWordChar('9'));
}
TEST(IsWordCharTest, IsTrueForUnderscore) {
EXPECT_TRUE(IsWordChar('_'));
}
TEST(IsValidEscapeTest, IsFalseForNonPrintable) {
EXPECT_FALSE(IsValidEscape('\0'));
EXPECT_FALSE(IsValidEscape('\007'));
}
TEST(IsValidEscapeTest, IsFalseForDigit) {
EXPECT_FALSE(IsValidEscape('0'));
EXPECT_FALSE(IsValidEscape('9'));
}
TEST(IsValidEscapeTest, IsFalseForWhiteSpace) {
EXPECT_FALSE(IsValidEscape(' '));
EXPECT_FALSE(IsValidEscape('\n'));
}
TEST(IsValidEscapeTest, IsFalseForSomeLetter) {
EXPECT_FALSE(IsValidEscape('a'));
EXPECT_FALSE(IsValidEscape('Z'));
}
TEST(IsValidEscapeTest, IsTrueForPunct) {
EXPECT_TRUE(IsValidEscape('.'));
EXPECT_TRUE(IsValidEscape('-'));
EXPECT_TRUE(IsValidEscape('^'));
EXPECT_TRUE(IsValidEscape('$'));
EXPECT_TRUE(IsValidEscape('('));
EXPECT_TRUE(IsValidEscape(']'));
EXPECT_TRUE(IsValidEscape('{'));
EXPECT_TRUE(IsValidEscape('|'));
}
TEST(IsValidEscapeTest, IsTrueForSomeLetter) {
EXPECT_TRUE(IsValidEscape('d'));
EXPECT_TRUE(IsValidEscape('D'));
EXPECT_TRUE(IsValidEscape('s'));
EXPECT_TRUE(IsValidEscape('S'));
EXPECT_TRUE(IsValidEscape('w'));
EXPECT_TRUE(IsValidEscape('W'));
}
TEST(AtomMatchesCharTest, EscapedPunct) {
EXPECT_FALSE(AtomMatchesChar(true, '\\', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, '\\', ' '));
EXPECT_FALSE(AtomMatchesChar(true, '_', '.'));
EXPECT_FALSE(AtomMatchesChar(true, '.', 'a'));
EXPECT_TRUE(AtomMatchesChar(true, '\\', '\\'));
EXPECT_TRUE(AtomMatchesChar(true, '_', '_'));
EXPECT_TRUE(AtomMatchesChar(true, '+', '+'));
EXPECT_TRUE(AtomMatchesChar(true, '.', '.'));
}
TEST(AtomMatchesCharTest, Escaped_d) {
EXPECT_FALSE(AtomMatchesChar(true, 'd', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'd', 'a'));
EXPECT_FALSE(AtomMatchesChar(true, 'd', '.'));
EXPECT_TRUE(AtomMatchesChar(true, 'd', '0'));
EXPECT_TRUE(AtomMatchesChar(true, 'd', '9'));
}
TEST(AtomMatchesCharTest, Escaped_D) {
EXPECT_FALSE(AtomMatchesChar(true, 'D', '0'));
EXPECT_FALSE(AtomMatchesChar(true, 'D', '9'));
EXPECT_TRUE(AtomMatchesChar(true, 'D', '\0'));
EXPECT_TRUE(AtomMatchesChar(true, 'D', 'a'));
EXPECT_TRUE(AtomMatchesChar(true, 'D', '-'));
}
TEST(AtomMatchesCharTest, Escaped_s) {
EXPECT_FALSE(AtomMatchesChar(true, 's', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 's', 'a'));
EXPECT_FALSE(AtomMatchesChar(true, 's', '.'));
EXPECT_FALSE(AtomMatchesChar(true, 's', '9'));
EXPECT_TRUE(AtomMatchesChar(true, 's', ' '));
EXPECT_TRUE(AtomMatchesChar(true, 's', '\n'));
EXPECT_TRUE(AtomMatchesChar(true, 's', '\t'));
}
TEST(AtomMatchesCharTest, Escaped_S) {
EXPECT_FALSE(AtomMatchesChar(true, 'S', ' '));
EXPECT_FALSE(AtomMatchesChar(true, 'S', '\r'));
EXPECT_TRUE(AtomMatchesChar(true, 'S', '\0'));
EXPECT_TRUE(AtomMatchesChar(true, 'S', 'a'));
EXPECT_TRUE(AtomMatchesChar(true, 'S', '9'));
}
TEST(AtomMatchesCharTest, Escaped_w) {
EXPECT_FALSE(AtomMatchesChar(true, 'w', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'w', '+'));
EXPECT_FALSE(AtomMatchesChar(true, 'w', ' '));
EXPECT_FALSE(AtomMatchesChar(true, 'w', '\n'));
EXPECT_TRUE(AtomMatchesChar(true, 'w', '0'));
EXPECT_TRUE(AtomMatchesChar(true, 'w', 'b'));
EXPECT_TRUE(AtomMatchesChar(true, 'w', 'C'));
EXPECT_TRUE(AtomMatchesChar(true, 'w', '_'));
}
TEST(AtomMatchesCharTest, Escaped_W) {
EXPECT_FALSE(AtomMatchesChar(true, 'W', 'A'));
EXPECT_FALSE(AtomMatchesChar(true, 'W', 'b'));
EXPECT_FALSE(AtomMatchesChar(true, 'W', '9'));
EXPECT_FALSE(AtomMatchesChar(true, 'W', '_'));
EXPECT_TRUE(AtomMatchesChar(true, 'W', '\0'));
EXPECT_TRUE(AtomMatchesChar(true, 'W', '*'));
EXPECT_TRUE(AtomMatchesChar(true, 'W', '\n'));
}
TEST(AtomMatchesCharTest, EscapedWhiteSpace) {
EXPECT_FALSE(AtomMatchesChar(true, 'f', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'f', '\n'));
EXPECT_FALSE(AtomMatchesChar(true, 'n', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'n', '\r'));
EXPECT_FALSE(AtomMatchesChar(true, 'r', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'r', 'a'));
EXPECT_FALSE(AtomMatchesChar(true, 't', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 't', 't'));
EXPECT_FALSE(AtomMatchesChar(true, 'v', '\0'));
EXPECT_FALSE(AtomMatchesChar(true, 'v', '\f'));
EXPECT_TRUE(AtomMatchesChar(true, 'f', '\f'));
EXPECT_TRUE(AtomMatchesChar(true, 'n', '\n'));
EXPECT_TRUE(AtomMatchesChar(true, 'r', '\r'));
EXPECT_TRUE(AtomMatchesChar(true, 't', '\t'));
EXPECT_TRUE(AtomMatchesChar(true, 'v', '\v'));
}
TEST(AtomMatchesCharTest, UnescapedDot) {
EXPECT_FALSE(AtomMatchesChar(false, '.', '\n'));
EXPECT_TRUE(AtomMatchesChar(false, '.', '\0'));
EXPECT_TRUE(AtomMatchesChar(false, '.', '.'));
EXPECT_TRUE(AtomMatchesChar(false, '.', 'a'));
EXPECT_TRUE(AtomMatchesChar(false, '.', ' '));
}
TEST(AtomMatchesCharTest, UnescapedChar) {
EXPECT_FALSE(AtomMatchesChar(false, 'a', '\0'));
EXPECT_FALSE(AtomMatchesChar(false, 'a', 'b'));
EXPECT_FALSE(AtomMatchesChar(false, '$', 'a'));
EXPECT_TRUE(AtomMatchesChar(false, '$', '$'));
EXPECT_TRUE(AtomMatchesChar(false, '5', '5'));
EXPECT_TRUE(AtomMatchesChar(false, 'Z', 'Z'));
}
TEST(ValidateRegexTest, GeneratesFailureAndReturnsFalseForInvalid) {
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex(NULL)),
"NULL is not a valid simple regular expression");
EXPECT_NONFATAL_FAILURE(
ASSERT_FALSE(ValidateRegex("a\\")),
"Syntax error at index 1 in simple regular expression \"a\\\": ");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("a\\")),
"'\\' cannot appear at the end");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("\\n\\")),
"'\\' cannot appear at the end");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("\\s\\hb")),
"invalid escape sequence \"\\h\"");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("^^")),
"'^' can only appear at the beginning");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex(".*^b")),
"'^' can only appear at the beginning");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("$$")),
"'$' can only appear at the end");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("^$a")),
"'$' can only appear at the end");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("a(b")),
"'(' is unsupported");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("ab)")),
"')' is unsupported");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("[ab")),
"'[' is unsupported");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("a{2")),
"'{' is unsupported");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("?")),
"'?' can only follow a repeatable token");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("^*")),
"'*' can only follow a repeatable token");
EXPECT_NONFATAL_FAILURE(ASSERT_FALSE(ValidateRegex("5*+")),
"'+' can only follow a repeatable token");
}
TEST(ValidateRegexTest, ReturnsTrueForValid) {
EXPECT_TRUE(ValidateRegex(""));
EXPECT_TRUE(ValidateRegex("a"));
EXPECT_TRUE(ValidateRegex(".*"));
EXPECT_TRUE(ValidateRegex("^a_+"));
EXPECT_TRUE(ValidateRegex("^a\\t\\&?"));
EXPECT_TRUE(ValidateRegex("09*$"));
EXPECT_TRUE(ValidateRegex("^Z$"));
EXPECT_TRUE(ValidateRegex("a\\^Z\\$\\(\\)\\|\\[\\]\\{\\}"));
}
TEST(MatchRepetitionAndRegexAtHeadTest, WorksForZeroOrOne) {
EXPECT_FALSE(MatchRepetitionAndRegexAtHead(false, 'a', '?', "a", "ba"));
// Repeating more than once.
EXPECT_FALSE(MatchRepetitionAndRegexAtHead(false, 'a', '?', "b", "aab"));
// Repeating zero times.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, 'a', '?', "b", "ba"));
// Repeating once.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, 'a', '?', "b", "ab"));
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, '#', '?', ".", "##"));
}
TEST(MatchRepetitionAndRegexAtHeadTest, WorksForZeroOrMany) {
EXPECT_FALSE(MatchRepetitionAndRegexAtHead(false, '.', '*', "a$", "baab"));
// Repeating zero times.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, '.', '*', "b", "bc"));
// Repeating once.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, '.', '*', "b", "abc"));
// Repeating more than once.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(true, 'w', '*', "-", "ab_1-g"));
}
TEST(MatchRepetitionAndRegexAtHeadTest, WorksForOneOrMany) {
EXPECT_FALSE(MatchRepetitionAndRegexAtHead(false, '.', '+', "a$", "baab"));
// Repeating zero times.
EXPECT_FALSE(MatchRepetitionAndRegexAtHead(false, '.', '+', "b", "bc"));
// Repeating once.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(false, '.', '+', "b", "abc"));
// Repeating more than once.
EXPECT_TRUE(MatchRepetitionAndRegexAtHead(true, 'w', '+', "-", "ab_1-g"));
}
TEST(MatchRegexAtHeadTest, ReturnsTrueForEmptyRegex) {
EXPECT_TRUE(MatchRegexAtHead("", ""));
EXPECT_TRUE(MatchRegexAtHead("", "ab"));
}
TEST(MatchRegexAtHeadTest, WorksWhenDollarIsInRegex) {
EXPECT_FALSE(MatchRegexAtHead("$", "a"));
EXPECT_TRUE(MatchRegexAtHead("$", ""));
EXPECT_TRUE(MatchRegexAtHead("a$", "a"));
}
TEST(MatchRegexAtHeadTest, WorksWhenRegexStartsWithEscapeSequence) {
EXPECT_FALSE(MatchRegexAtHead("\\w", "+"));
EXPECT_FALSE(MatchRegexAtHead("\\W", "ab"));
EXPECT_TRUE(MatchRegexAtHead("\\sa", "\nab"));
EXPECT_TRUE(MatchRegexAtHead("\\d", "1a"));
}
TEST(MatchRegexAtHeadTest, WorksWhenRegexStartsWithRepetition) {
EXPECT_FALSE(MatchRegexAtHead(".+a", "abc"));
EXPECT_FALSE(MatchRegexAtHead("a?b", "aab"));
EXPECT_TRUE(MatchRegexAtHead(".*a", "bc12-ab"));
EXPECT_TRUE(MatchRegexAtHead("a?b", "b"));
EXPECT_TRUE(MatchRegexAtHead("a?b", "ab"));
}
TEST(MatchRegexAtHeadTest,
WorksWhenRegexStartsWithRepetionOfEscapeSequence) {
EXPECT_FALSE(MatchRegexAtHead("\\.+a", "abc"));
EXPECT_FALSE(MatchRegexAtHead("\\s?b", " b"));
EXPECT_TRUE(MatchRegexAtHead("\\(*a", "((((ab"));
EXPECT_TRUE(MatchRegexAtHead("\\^?b", "^b"));
EXPECT_TRUE(MatchRegexAtHead("\\\\?b", "b"));
EXPECT_TRUE(MatchRegexAtHead("\\\\?b", "\\b"));
}
TEST(MatchRegexAtHeadTest, MatchesSequentially) {
EXPECT_FALSE(MatchRegexAtHead("ab.*c", "acabc"));
EXPECT_TRUE(MatchRegexAtHead("ab.*c", "ab-fsc"));
}
TEST(MatchRegexAnywhereTest, ReturnsFalseWhenStringIsNull) {
EXPECT_FALSE(MatchRegexAnywhere("", NULL));
}
TEST(MatchRegexAnywhereTest, WorksWhenRegexStartsWithCaret) {
EXPECT_FALSE(MatchRegexAnywhere("^a", "ba"));
EXPECT_FALSE(MatchRegexAnywhere("^$", "a"));
EXPECT_TRUE(MatchRegexAnywhere("^a", "ab"));
EXPECT_TRUE(MatchRegexAnywhere("^", "ab"));
EXPECT_TRUE(MatchRegexAnywhere("^$", ""));
}
TEST(MatchRegexAnywhereTest, ReturnsFalseWhenNoMatch) {
EXPECT_FALSE(MatchRegexAnywhere("a", "bcde123"));
EXPECT_FALSE(MatchRegexAnywhere("a.+a", "--aa88888888"));
}
TEST(MatchRegexAnywhereTest, ReturnsTrueWhenMatchingPrefix) {
EXPECT_TRUE(MatchRegexAnywhere("\\w+", "ab1_ - 5"));
EXPECT_TRUE(MatchRegexAnywhere(".*=", "="));
EXPECT_TRUE(MatchRegexAnywhere("x.*ab?.*bc", "xaaabc"));
}
TEST(MatchRegexAnywhereTest, ReturnsTrueWhenMatchingNonPrefix) {
EXPECT_TRUE(MatchRegexAnywhere("\\w+", "$$$ ab1_ - 5"));
EXPECT_TRUE(MatchRegexAnywhere("\\.+=", "= ...="));
}
// Tests RE's implicit constructors.
TEST(RETest, ImplicitConstructorWorks) {
const RE empty("");
EXPECT_STREQ("", empty.pattern());
const RE simple("hello");
EXPECT_STREQ("hello", simple.pattern());
}
// Tests that RE's constructors reject invalid regular expressions.
TEST(RETest, RejectsInvalidRegex) {
EXPECT_NONFATAL_FAILURE({
const RE normal(NULL);
}, "NULL is not a valid simple regular expression");
EXPECT_NONFATAL_FAILURE({
const RE normal(".*(\\w+");
}, "'(' is unsupported");
EXPECT_NONFATAL_FAILURE({
const RE invalid("^?");
}, "'?' can only follow a repeatable token");
}
// Tests RE::FullMatch().
TEST(RETest, FullMatchWorks) {
const RE empty("");
EXPECT_TRUE(RE::FullMatch("", empty));
EXPECT_FALSE(RE::FullMatch("a", empty));
const RE re1("a");
EXPECT_TRUE(RE::FullMatch("a", re1));
const RE re("a.*z");
EXPECT_TRUE(RE::FullMatch("az", re));
EXPECT_TRUE(RE::FullMatch("axyz", re));
EXPECT_FALSE(RE::FullMatch("baz", re));
EXPECT_FALSE(RE::FullMatch("azy", re));
}
// Tests RE::PartialMatch().
TEST(RETest, PartialMatchWorks) {
const RE empty("");
EXPECT_TRUE(RE::PartialMatch("", empty));
EXPECT_TRUE(RE::PartialMatch("a", empty));
const RE re("a.*z");
EXPECT_TRUE(RE::PartialMatch("az", re));
EXPECT_TRUE(RE::PartialMatch("axyz", re));
EXPECT_TRUE(RE::PartialMatch("baz", re));
EXPECT_TRUE(RE::PartialMatch("azy", re));
EXPECT_FALSE(RE::PartialMatch("zza", re));
}
#endif // GTEST_USES_POSIX_RE
#if !GTEST_OS_WINDOWS_MOBILE
TEST(CaptureTest, CapturesStdout) {
CaptureStdout();
fprintf(stdout, "abc");
EXPECT_STREQ("abc", GetCapturedStdout().c_str());
CaptureStdout();
fprintf(stdout, "def%cghi", '\0');
EXPECT_EQ(::std::string("def\0ghi", 7), ::std::string(GetCapturedStdout()));
}
TEST(CaptureTest, CapturesStderr) {
CaptureStderr();
fprintf(stderr, "jkl");
EXPECT_STREQ("jkl", GetCapturedStderr().c_str());
CaptureStderr();
fprintf(stderr, "jkl%cmno", '\0');
EXPECT_EQ(::std::string("jkl\0mno", 7), ::std::string(GetCapturedStderr()));
}
// Tests that stdout and stderr capture don't interfere with each other.
TEST(CaptureTest, CapturesStdoutAndStderr) {
CaptureStdout();
CaptureStderr();
fprintf(stdout, "pqr");
fprintf(stderr, "stu");
EXPECT_STREQ("pqr", GetCapturedStdout().c_str());
EXPECT_STREQ("stu", GetCapturedStderr().c_str());
}
TEST(CaptureDeathTest, CannotReenterStdoutCapture) {
CaptureStdout();
EXPECT_DEATH_IF_SUPPORTED(CaptureStdout();,
"Only one stdout capturer can exist at a time");
GetCapturedStdout();
// We cannot test stderr capturing using death tests as they use it
// themselves.
}
#endif // !GTEST_OS_WINDOWS_MOBILE
TEST(ThreadLocalTest, DefaultConstructorInitializesToDefaultValues) {
ThreadLocal<int> t1;
EXPECT_EQ(0, t1.get());
ThreadLocal<void*> t2;
EXPECT_TRUE(t2.get() == NULL);
}
TEST(ThreadLocalTest, SingleParamConstructorInitializesToParam) {
ThreadLocal<int> t1(123);
EXPECT_EQ(123, t1.get());
int i = 0;
ThreadLocal<int*> t2(&i);
EXPECT_EQ(&i, t2.get());
}
class NoDefaultContructor {
public:
explicit NoDefaultContructor(const char*) {}
NoDefaultContructor(const NoDefaultContructor&) {}
};
TEST(ThreadLocalTest, ValueDefaultContructorIsNotRequiredForParamVersion) {
ThreadLocal<NoDefaultContructor> bar(NoDefaultContructor("foo"));
bar.pointer();
}
TEST(ThreadLocalTest, GetAndPointerReturnSameValue) {
ThreadLocal<String> thread_local;
EXPECT_EQ(thread_local.pointer(), &(thread_local.get()));
// Verifies the condition still holds after calling set.
thread_local.set("foo");
EXPECT_EQ(thread_local.pointer(), &(thread_local.get()));
}
TEST(ThreadLocalTest, PointerAndConstPointerReturnSameValue) {
ThreadLocal<String> thread_local;
const ThreadLocal<String>& const_thread_local = thread_local;
EXPECT_EQ(thread_local.pointer(), const_thread_local.pointer());
thread_local.set("foo");
EXPECT_EQ(thread_local.pointer(), const_thread_local.pointer());
}
#if GTEST_IS_THREADSAFE
TEST(MutexDeathTest, AssertHeldShouldAssertWhenNotLocked) {
// AssertHeld() is flaky only in the presence of multiple threads accessing
// the lock. In this case, the test is robust.
EXPECT_DEATH_IF_SUPPORTED({
Mutex m;
{ MutexLock lock(&m); }
m.AssertHeld();
},
"thread .*hold");
}
TEST(MutexTest, AssertHeldShouldNotAssertWhenLocked) {
Mutex m;
MutexLock lock(&m);
m.AssertHeld();
}
class AtomicCounterWithMutex {
public:
explicit AtomicCounterWithMutex(Mutex* mutex) :
value_(0), mutex_(mutex), random_(42) {}
void Increment() {
MutexLock lock(mutex_);
int temp = value_;
{
// Locking a mutex puts up a memory barrier, preventing reads and
// writes to value_ rearranged when observed from other threads.
//
// We cannot use Mutex and MutexLock here or rely on their memory
// barrier functionality as we are testing them here.
pthread_mutex_t memory_barrier_mutex;
GTEST_CHECK_POSIX_SUCCESS_(
pthread_mutex_init(&memory_barrier_mutex, NULL));
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_lock(&memory_barrier_mutex));
SleepMilliseconds(random_.Generate(30));
GTEST_CHECK_POSIX_SUCCESS_(pthread_mutex_unlock(&memory_barrier_mutex));
}
value_ = temp + 1;
}
int value() const { return value_; }
private:
volatile int value_;
Mutex* const mutex_; // Protects value_.
Random random_;
};
void CountingThreadFunc(pair<AtomicCounterWithMutex*, int> param) {
for (int i = 0; i < param.second; ++i)
param.first->Increment();
}
// Tests that the mutex only lets one thread at a time to lock it.
TEST(MutexTest, OnlyOneThreadCanLockAtATime) {
Mutex mutex;
AtomicCounterWithMutex locked_counter(&mutex);
typedef ThreadWithParam<pair<AtomicCounterWithMutex*, int> > ThreadType;
const int kCycleCount = 20;
const int kThreadCount = 7;
scoped_ptr<ThreadType> counting_threads[kThreadCount];
Notification threads_can_start;
// Creates and runs kThreadCount threads that increment locked_counter
// kCycleCount times each.
for (int i = 0; i < kThreadCount; ++i) {
counting_threads[i].reset(new ThreadType(&CountingThreadFunc,
make_pair(&locked_counter,
kCycleCount),
&threads_can_start));
}
threads_can_start.Notify();
for (int i = 0; i < kThreadCount; ++i)
counting_threads[i]->Join();
// If the mutex lets more than one thread to increment the counter at a
// time, they are likely to encounter a race condition and have some
// increments overwritten, resulting in the lower then expected counter
// value.
EXPECT_EQ(kCycleCount * kThreadCount, locked_counter.value());
}
template <typename T>
void RunFromThread(void (func)(T), T param) {
ThreadWithParam<T> thread(func, param, NULL);
thread.Join();
}
void RetrieveThreadLocalValue(pair<ThreadLocal<String>*, String*> param) {
*param.second = param.first->get();
}
TEST(ThreadLocalTest, ParameterizedConstructorSetsDefault) {
ThreadLocal<String> thread_local("foo");
EXPECT_STREQ("foo", thread_local.get().c_str());
thread_local.set("bar");
EXPECT_STREQ("bar", thread_local.get().c_str());
String result;
RunFromThread(&RetrieveThreadLocalValue, make_pair(&thread_local, &result));
EXPECT_STREQ("foo", result.c_str());
}
// DestructorTracker keeps track of whether the class instances have been
// destroyed. The static synchronization mutex has to be defined outside
// of the class, due to syntax of its definition.
static GTEST_DEFINE_STATIC_MUTEX_(destructor_tracker_mutex);
static std::vector<bool> g_destroyed;
class DestructorTracker {
public:
DestructorTracker() : index_(GetNewIndex()) {}
~DestructorTracker() {
MutexLock lock(&destructor_tracker_mutex);
g_destroyed[index_] = true;
}
private:
static int GetNewIndex() {
MutexLock lock(&destructor_tracker_mutex);
g_destroyed.push_back(false);
return g_destroyed.size() - 1;
}
const int index_;
};
template <typename T>
void CallThreadLocalGet(ThreadLocal<T>* threadLocal) {
threadLocal->get();
}
TEST(ThreadLocalTest, DestroysManagedObjectsNoLaterThanSelf) {
g_destroyed.clear();
{
ThreadLocal<DestructorTracker> thread_local;
ThreadWithParam<ThreadLocal<DestructorTracker>*> thread(
&CallThreadLocalGet<DestructorTracker>, &thread_local, NULL);
thread.Join();
}
// Verifies that all DestructorTracker objects there were have been
// destroyed.
for (size_t i = 0; i < g_destroyed.size(); ++i)
EXPECT_TRUE(g_destroyed[i]) << "at index " << i;
g_destroyed.clear();
}
TEST(ThreadLocalTest, ThreadLocalMutationsAffectOnlyCurrentThread) {
ThreadLocal<String> thread_local;
thread_local.set("Foo");
EXPECT_STREQ("Foo", thread_local.get().c_str());
String result;
RunFromThread(&RetrieveThreadLocalValue, make_pair(&thread_local, &result));
EXPECT_TRUE(result.c_str() == NULL);
}
#endif // GTEST_IS_THREADSAFE
} // namespace internal
} // namespace testing
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