2008-11-20 01:40:35 +00:00
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// Copyright 2008, Google Inc.
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Author: vladl@google.com (Vlad Losev)
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//
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// Tests for Google Test itself. This file verifies that the parameter
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// generators objects produce correct parameter sequences and that
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// Google Test runtime instantiates correct tests from those sequences.
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2010-09-14 05:35:59 +00:00
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#include "gtest/gtest.h"
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2008-11-20 01:40:35 +00:00
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2009-02-23 23:21:55 +00:00
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#if GTEST_HAS_PARAM_TEST
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2008-11-20 01:40:35 +00:00
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2011-02-22 22:08:59 +00:00
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# include <algorithm>
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# include <iostream>
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# include <list>
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# include <sstream>
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# include <string>
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# include <vector>
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2008-11-20 01:40:35 +00:00
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// To include gtest-internal-inl.h.
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2011-02-22 22:08:59 +00:00
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# define GTEST_IMPLEMENTATION_ 1
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# include "src/gtest-internal-inl.h" // for UnitTestOptions
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# undef GTEST_IMPLEMENTATION_
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2008-11-20 01:40:35 +00:00
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2011-02-22 22:08:59 +00:00
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# include "test/gtest-param-test_test.h"
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2008-11-20 01:40:35 +00:00
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using ::std::vector;
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using ::std::sort;
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using ::testing::AddGlobalTestEnvironment;
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using ::testing::Bool;
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using ::testing::Message;
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using ::testing::Range;
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using ::testing::TestWithParam;
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using ::testing::Values;
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using ::testing::ValuesIn;
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2011-02-22 22:08:59 +00:00
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# if GTEST_HAS_COMBINE
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2008-11-20 01:40:35 +00:00
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using ::testing::Combine;
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using ::std::tr1::get;
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using ::std::tr1::make_tuple;
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using ::std::tr1::tuple;
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2011-02-22 22:08:59 +00:00
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# endif // GTEST_HAS_COMBINE
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2008-11-20 01:40:35 +00:00
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using ::testing::internal::ParamGenerator;
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using ::testing::internal::UnitTestOptions;
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2010-02-17 21:28:45 +00:00
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// Prints a value to a string.
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//
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// TODO(wan@google.com): remove PrintValue() when we move matchers and
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// EXPECT_THAT() from Google Mock to Google Test. At that time, we
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// can write EXPECT_THAT(x, Eq(y)) to compare two tuples x and y, as
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// EXPECT_THAT() and the matchers know how to print tuples.
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template <typename T>
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::std::string PrintValue(const T& value) {
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::std::stringstream stream;
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stream << value;
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return stream.str();
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}
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2011-02-22 22:08:59 +00:00
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# if GTEST_HAS_COMBINE
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2010-02-17 21:28:45 +00:00
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// These overloads allow printing tuples in our tests. We cannot
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// define an operator<< for tuples, as that definition needs to be in
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// the std namespace in order to be picked up by Google Test via
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// Argument-Dependent Lookup, yet defining anything in the std
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// namespace in non-STL code is undefined behavior.
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template <typename T1, typename T2>
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::std::string PrintValue(const tuple<T1, T2>& value) {
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::std::stringstream stream;
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stream << "(" << get<0>(value) << ", " << get<1>(value) << ")";
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return stream.str();
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}
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template <typename T1, typename T2, typename T3>
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::std::string PrintValue(const tuple<T1, T2, T3>& value) {
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::std::stringstream stream;
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stream << "(" << get<0>(value) << ", " << get<1>(value)
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<< ", "<< get<2>(value) << ")";
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return stream.str();
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}
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template <typename T1, typename T2, typename T3, typename T4, typename T5,
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typename T6, typename T7, typename T8, typename T9, typename T10>
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::std::string PrintValue(
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const tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>& value) {
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::std::stringstream stream;
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stream << "(" << get<0>(value) << ", " << get<1>(value)
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<< ", "<< get<2>(value) << ", " << get<3>(value)
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<< ", "<< get<4>(value) << ", " << get<5>(value)
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<< ", "<< get<6>(value) << ", " << get<7>(value)
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<< ", "<< get<8>(value) << ", " << get<9>(value) << ")";
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return stream.str();
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}
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2011-02-22 22:08:59 +00:00
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# endif // GTEST_HAS_COMBINE
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2010-02-17 21:28:45 +00:00
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2008-11-20 01:40:35 +00:00
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// Verifies that a sequence generated by the generator and accessed
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// via the iterator object matches the expected one using Google Test
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// assertions.
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template <typename T, size_t N>
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void VerifyGenerator(const ParamGenerator<T>& generator,
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const T (&expected_values)[N]) {
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typename ParamGenerator<T>::iterator it = generator.begin();
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for (size_t i = 0; i < N; ++i) {
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ASSERT_FALSE(it == generator.end())
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<< "At element " << i << " when accessing via an iterator "
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2010-02-17 21:28:45 +00:00
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<< "created with the copy constructor.\n";
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// We cannot use EXPECT_EQ() here as the values may be tuples,
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// which don't support <<.
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EXPECT_TRUE(expected_values[i] == *it)
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<< "where i is " << i
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<< ", expected_values[i] is " << PrintValue(expected_values[i])
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<< ", *it is " << PrintValue(*it)
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<< ", and 'it' is an iterator created with the copy constructor.\n";
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2008-11-20 01:40:35 +00:00
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it++;
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}
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EXPECT_TRUE(it == generator.end())
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<< "At the presumed end of sequence when accessing via an iterator "
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2010-02-17 21:28:45 +00:00
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<< "created with the copy constructor.\n";
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2008-11-20 01:40:35 +00:00
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// Test the iterator assignment. The following lines verify that
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// the sequence accessed via an iterator initialized via the
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// assignment operator (as opposed to a copy constructor) matches
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// just the same.
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it = generator.begin();
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for (size_t i = 0; i < N; ++i) {
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ASSERT_FALSE(it == generator.end())
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<< "At element " << i << " when accessing via an iterator "
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2010-02-17 21:28:45 +00:00
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<< "created with the assignment operator.\n";
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EXPECT_TRUE(expected_values[i] == *it)
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<< "where i is " << i
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<< ", expected_values[i] is " << PrintValue(expected_values[i])
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<< ", *it is " << PrintValue(*it)
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<< ", and 'it' is an iterator created with the copy constructor.\n";
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2008-11-20 01:40:35 +00:00
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it++;
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}
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EXPECT_TRUE(it == generator.end())
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<< "At the presumed end of sequence when accessing via an iterator "
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2010-02-17 21:28:45 +00:00
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<< "created with the assignment operator.\n";
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2008-11-20 01:40:35 +00:00
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}
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template <typename T>
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void VerifyGeneratorIsEmpty(const ParamGenerator<T>& generator) {
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typename ParamGenerator<T>::iterator it = generator.begin();
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EXPECT_TRUE(it == generator.end());
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it = generator.begin();
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EXPECT_TRUE(it == generator.end());
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}
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// Generator tests. They test that each of the provided generator functions
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// generates an expected sequence of values. The general test pattern
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// instantiates a generator using one of the generator functions,
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// checks the sequence produced by the generator using its iterator API,
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// and then resets the iterator back to the beginning of the sequence
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// and checks the sequence again.
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// Tests that iterators produced by generator functions conform to the
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// ForwardIterator concept.
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TEST(IteratorTest, ParamIteratorConformsToForwardIteratorConcept) {
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const ParamGenerator<int> gen = Range(0, 10);
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ParamGenerator<int>::iterator it = gen.begin();
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// Verifies that iterator initialization works as expected.
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ParamGenerator<int>::iterator it2 = it;
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EXPECT_TRUE(*it == *it2) << "Initialized iterators must point to the "
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<< "element same as its source points to";
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// Verifies that iterator assignment works as expected.
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it++;
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EXPECT_FALSE(*it == *it2);
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it2 = it;
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EXPECT_TRUE(*it == *it2) << "Assigned iterators must point to the "
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<< "element same as its source points to";
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// Verifies that prefix operator++() returns *this.
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EXPECT_EQ(&it, &(++it)) << "Result of the prefix operator++ must be "
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<< "refer to the original object";
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// Verifies that the result of the postfix operator++ points to the value
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// pointed to by the original iterator.
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int original_value = *it; // Have to compute it outside of macro call to be
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// unaffected by the parameter evaluation order.
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EXPECT_EQ(original_value, *(it++));
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// Verifies that prefix and postfix operator++() advance an iterator
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// all the same.
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it2 = it;
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it++;
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++it2;
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EXPECT_TRUE(*it == *it2);
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}
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// Tests that Range() generates the expected sequence.
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TEST(RangeTest, IntRangeWithDefaultStep) {
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const ParamGenerator<int> gen = Range(0, 3);
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const int expected_values[] = {0, 1, 2};
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VerifyGenerator(gen, expected_values);
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}
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// Edge case. Tests that Range() generates the single element sequence
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// as expected when provided with range limits that are equal.
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TEST(RangeTest, IntRangeSingleValue) {
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const ParamGenerator<int> gen = Range(0, 1);
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const int expected_values[] = {0};
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VerifyGenerator(gen, expected_values);
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}
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// Edge case. Tests that Range() with generates empty sequence when
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// supplied with an empty range.
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TEST(RangeTest, IntRangeEmpty) {
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const ParamGenerator<int> gen = Range(0, 0);
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VerifyGeneratorIsEmpty(gen);
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}
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// Tests that Range() with custom step (greater then one) generates
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// the expected sequence.
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TEST(RangeTest, IntRangeWithCustomStep) {
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const ParamGenerator<int> gen = Range(0, 9, 3);
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const int expected_values[] = {0, 3, 6};
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VerifyGenerator(gen, expected_values);
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}
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// Tests that Range() with custom step (greater then one) generates
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// the expected sequence when the last element does not fall on the
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// upper range limit. Sequences generated by Range() must not have
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// elements beyond the range limits.
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TEST(RangeTest, IntRangeWithCustomStepOverUpperBound) {
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const ParamGenerator<int> gen = Range(0, 4, 3);
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const int expected_values[] = {0, 3};
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VerifyGenerator(gen, expected_values);
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}
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// Verifies that Range works with user-defined types that define
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// copy constructor, operator=(), operator+(), and operator<().
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class DogAdder {
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public:
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explicit DogAdder(const char* a_value) : value_(a_value) {}
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DogAdder(const DogAdder& other) : value_(other.value_.c_str()) {}
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DogAdder operator=(const DogAdder& other) {
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if (this != &other)
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value_ = other.value_;
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return *this;
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}
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DogAdder operator+(const DogAdder& other) const {
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Message msg;
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msg << value_.c_str() << other.value_.c_str();
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return DogAdder(msg.GetString().c_str());
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}
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bool operator<(const DogAdder& other) const {
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return value_ < other.value_;
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}
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const std::string& value() const { return value_; }
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private:
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std::string value_;
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};
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TEST(RangeTest, WorksWithACustomType) {
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const ParamGenerator<DogAdder> gen =
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Range(DogAdder("cat"), DogAdder("catdogdog"), DogAdder("dog"));
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ParamGenerator<DogAdder>::iterator it = gen.begin();
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ASSERT_FALSE(it == gen.end());
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EXPECT_STREQ("cat", it->value().c_str());
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ASSERT_FALSE(++it == gen.end());
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EXPECT_STREQ("catdog", it->value().c_str());
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EXPECT_TRUE(++it == gen.end());
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}
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class IntWrapper {
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public:
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explicit IntWrapper(int a_value) : value_(a_value) {}
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IntWrapper(const IntWrapper& other) : value_(other.value_) {}
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IntWrapper operator=(const IntWrapper& other) {
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value_ = other.value_;
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return *this;
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}
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// operator+() adds a different type.
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IntWrapper operator+(int other) const { return IntWrapper(value_ + other); }
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bool operator<(const IntWrapper& other) const {
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return value_ < other.value_;
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}
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int value() const { return value_; }
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private:
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int value_;
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};
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TEST(RangeTest, WorksWithACustomTypeWithDifferentIncrementType) {
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const ParamGenerator<IntWrapper> gen = Range(IntWrapper(0), IntWrapper(2));
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ParamGenerator<IntWrapper>::iterator it = gen.begin();
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ASSERT_FALSE(it == gen.end());
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EXPECT_EQ(0, it->value());
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ASSERT_FALSE(++it == gen.end());
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EXPECT_EQ(1, it->value());
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EXPECT_TRUE(++it == gen.end());
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that ValuesIn() with an array parameter generates
|
|
|
|
// the expected sequence.
|
|
|
|
TEST(ValuesInTest, ValuesInArray) {
|
|
|
|
int array[] = {3, 5, 8};
|
|
|
|
const ParamGenerator<int> gen = ValuesIn(array);
|
|
|
|
VerifyGenerator(gen, array);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that ValuesIn() with a const array parameter generates
|
|
|
|
// the expected sequence.
|
|
|
|
TEST(ValuesInTest, ValuesInConstArray) {
|
|
|
|
const int array[] = {3, 5, 8};
|
|
|
|
const ParamGenerator<int> gen = ValuesIn(array);
|
|
|
|
VerifyGenerator(gen, array);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Edge case. Tests that ValuesIn() with an array parameter containing a
|
|
|
|
// single element generates the single element sequence.
|
|
|
|
TEST(ValuesInTest, ValuesInSingleElementArray) {
|
|
|
|
int array[] = {42};
|
|
|
|
const ParamGenerator<int> gen = ValuesIn(array);
|
|
|
|
VerifyGenerator(gen, array);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that ValuesIn() generates the expected sequence for an STL
|
|
|
|
// container (vector).
|
|
|
|
TEST(ValuesInTest, ValuesInVector) {
|
|
|
|
typedef ::std::vector<int> ContainerType;
|
|
|
|
ContainerType values;
|
|
|
|
values.push_back(3);
|
|
|
|
values.push_back(5);
|
|
|
|
values.push_back(8);
|
|
|
|
const ParamGenerator<int> gen = ValuesIn(values);
|
|
|
|
|
|
|
|
const int expected_values[] = {3, 5, 8};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that ValuesIn() generates the expected sequence.
|
|
|
|
TEST(ValuesInTest, ValuesInIteratorRange) {
|
|
|
|
typedef ::std::vector<int> ContainerType;
|
|
|
|
ContainerType values;
|
|
|
|
values.push_back(3);
|
|
|
|
values.push_back(5);
|
|
|
|
values.push_back(8);
|
|
|
|
const ParamGenerator<int> gen = ValuesIn(values.begin(), values.end());
|
|
|
|
|
|
|
|
const int expected_values[] = {3, 5, 8};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Edge case. Tests that ValuesIn() provided with an iterator range specifying a
|
|
|
|
// single value generates a single-element sequence.
|
|
|
|
TEST(ValuesInTest, ValuesInSingleElementIteratorRange) {
|
|
|
|
typedef ::std::vector<int> ContainerType;
|
|
|
|
ContainerType values;
|
|
|
|
values.push_back(42);
|
|
|
|
const ParamGenerator<int> gen = ValuesIn(values.begin(), values.end());
|
|
|
|
|
|
|
|
const int expected_values[] = {42};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Edge case. Tests that ValuesIn() provided with an empty iterator range
|
|
|
|
// generates an empty sequence.
|
|
|
|
TEST(ValuesInTest, ValuesInEmptyIteratorRange) {
|
|
|
|
typedef ::std::vector<int> ContainerType;
|
|
|
|
ContainerType values;
|
|
|
|
const ParamGenerator<int> gen = ValuesIn(values.begin(), values.end());
|
|
|
|
|
|
|
|
VerifyGeneratorIsEmpty(gen);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that the Values() generates the expected sequence.
|
|
|
|
TEST(ValuesTest, ValuesWorks) {
|
|
|
|
const ParamGenerator<int> gen = Values(3, 5, 8);
|
|
|
|
|
|
|
|
const int expected_values[] = {3, 5, 8};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that Values() generates the expected sequences from elements of
|
|
|
|
// different types convertible to ParamGenerator's parameter type.
|
|
|
|
TEST(ValuesTest, ValuesWorksForValuesOfCompatibleTypes) {
|
|
|
|
const ParamGenerator<double> gen = Values(3, 5.0f, 8.0);
|
|
|
|
|
|
|
|
const double expected_values[] = {3.0, 5.0, 8.0};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
TEST(ValuesTest, ValuesWorksForMaxLengthList) {
|
|
|
|
const ParamGenerator<int> gen = Values(
|
|
|
|
10, 20, 30, 40, 50, 60, 70, 80, 90, 100,
|
|
|
|
110, 120, 130, 140, 150, 160, 170, 180, 190, 200,
|
|
|
|
210, 220, 230, 240, 250, 260, 270, 280, 290, 300,
|
|
|
|
310, 320, 330, 340, 350, 360, 370, 380, 390, 400,
|
|
|
|
410, 420, 430, 440, 450, 460, 470, 480, 490, 500);
|
|
|
|
|
|
|
|
const int expected_values[] = {
|
|
|
|
10, 20, 30, 40, 50, 60, 70, 80, 90, 100,
|
|
|
|
110, 120, 130, 140, 150, 160, 170, 180, 190, 200,
|
|
|
|
210, 220, 230, 240, 250, 260, 270, 280, 290, 300,
|
|
|
|
310, 320, 330, 340, 350, 360, 370, 380, 390, 400,
|
|
|
|
410, 420, 430, 440, 450, 460, 470, 480, 490, 500};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Edge case test. Tests that single-parameter Values() generates the sequence
|
|
|
|
// with the single value.
|
|
|
|
TEST(ValuesTest, ValuesWithSingleParameter) {
|
|
|
|
const ParamGenerator<int> gen = Values(42);
|
|
|
|
|
|
|
|
const int expected_values[] = {42};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that Bool() generates sequence (false, true).
|
|
|
|
TEST(BoolTest, BoolWorks) {
|
|
|
|
const ParamGenerator<bool> gen = Bool();
|
|
|
|
|
|
|
|
const bool expected_values[] = {false, true};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
2011-02-22 22:08:59 +00:00
|
|
|
# if GTEST_HAS_COMBINE
|
2008-11-20 01:40:35 +00:00
|
|
|
|
|
|
|
// Tests that Combine() with two parameters generates the expected sequence.
|
|
|
|
TEST(CombineTest, CombineWithTwoParameters) {
|
|
|
|
const char* foo = "foo";
|
|
|
|
const char* bar = "bar";
|
|
|
|
const ParamGenerator<tuple<const char*, int> > gen =
|
|
|
|
Combine(Values(foo, bar), Values(3, 4));
|
|
|
|
|
|
|
|
tuple<const char*, int> expected_values[] = {
|
|
|
|
make_tuple(foo, 3), make_tuple(foo, 4),
|
|
|
|
make_tuple(bar, 3), make_tuple(bar, 4)};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that Combine() with three parameters generates the expected sequence.
|
|
|
|
TEST(CombineTest, CombineWithThreeParameters) {
|
|
|
|
const ParamGenerator<tuple<int, int, int> > gen = Combine(Values(0, 1),
|
|
|
|
Values(3, 4),
|
|
|
|
Values(5, 6));
|
|
|
|
tuple<int, int, int> expected_values[] = {
|
|
|
|
make_tuple(0, 3, 5), make_tuple(0, 3, 6),
|
|
|
|
make_tuple(0, 4, 5), make_tuple(0, 4, 6),
|
|
|
|
make_tuple(1, 3, 5), make_tuple(1, 3, 6),
|
|
|
|
make_tuple(1, 4, 5), make_tuple(1, 4, 6)};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that the Combine() with the first parameter generating a single value
|
|
|
|
// sequence generates a sequence with the number of elements equal to the
|
|
|
|
// number of elements in the sequence generated by the second parameter.
|
|
|
|
TEST(CombineTest, CombineWithFirstParameterSingleValue) {
|
|
|
|
const ParamGenerator<tuple<int, int> > gen = Combine(Values(42),
|
|
|
|
Values(0, 1));
|
|
|
|
|
|
|
|
tuple<int, int> expected_values[] = {make_tuple(42, 0), make_tuple(42, 1)};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that the Combine() with the second parameter generating a single value
|
|
|
|
// sequence generates a sequence with the number of elements equal to the
|
|
|
|
// number of elements in the sequence generated by the first parameter.
|
|
|
|
TEST(CombineTest, CombineWithSecondParameterSingleValue) {
|
|
|
|
const ParamGenerator<tuple<int, int> > gen = Combine(Values(0, 1),
|
|
|
|
Values(42));
|
|
|
|
|
|
|
|
tuple<int, int> expected_values[] = {make_tuple(0, 42), make_tuple(1, 42)};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that when the first parameter produces an empty sequence,
|
|
|
|
// Combine() produces an empty sequence, too.
|
|
|
|
TEST(CombineTest, CombineWithFirstParameterEmptyRange) {
|
|
|
|
const ParamGenerator<tuple<int, int> > gen = Combine(Range(0, 0),
|
|
|
|
Values(0, 1));
|
|
|
|
VerifyGeneratorIsEmpty(gen);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that when the second parameter produces an empty sequence,
|
|
|
|
// Combine() produces an empty sequence, too.
|
|
|
|
TEST(CombineTest, CombineWithSecondParameterEmptyRange) {
|
|
|
|
const ParamGenerator<tuple<int, int> > gen = Combine(Values(0, 1),
|
|
|
|
Range(1, 1));
|
|
|
|
VerifyGeneratorIsEmpty(gen);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Edge case. Tests that combine works with the maximum number
|
|
|
|
// of parameters supported by Google Test (currently 10).
|
|
|
|
TEST(CombineTest, CombineWithMaxNumberOfParameters) {
|
|
|
|
const char* foo = "foo";
|
|
|
|
const char* bar = "bar";
|
|
|
|
const ParamGenerator<tuple<const char*, int, int, int, int, int, int, int,
|
|
|
|
int, int> > gen = Combine(Values(foo, bar),
|
|
|
|
Values(1), Values(2),
|
|
|
|
Values(3), Values(4),
|
|
|
|
Values(5), Values(6),
|
|
|
|
Values(7), Values(8),
|
|
|
|
Values(9));
|
|
|
|
|
|
|
|
tuple<const char*, int, int, int, int, int, int, int, int, int>
|
|
|
|
expected_values[] = {make_tuple(foo, 1, 2, 3, 4, 5, 6, 7, 8, 9),
|
|
|
|
make_tuple(bar, 1, 2, 3, 4, 5, 6, 7, 8, 9)};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
2011-02-22 22:08:59 +00:00
|
|
|
# endif // GTEST_HAS_COMBINE
|
2008-11-20 01:40:35 +00:00
|
|
|
|
|
|
|
// Tests that an generator produces correct sequence after being
|
|
|
|
// assigned from another generator.
|
|
|
|
TEST(ParamGeneratorTest, AssignmentWorks) {
|
|
|
|
ParamGenerator<int> gen = Values(1, 2);
|
|
|
|
const ParamGenerator<int> gen2 = Values(3, 4);
|
|
|
|
gen = gen2;
|
|
|
|
|
|
|
|
const int expected_values[] = {3, 4};
|
|
|
|
VerifyGenerator(gen, expected_values);
|
|
|
|
}
|
|
|
|
|
|
|
|
// This test verifies that the tests are expanded and run as specified:
|
|
|
|
// one test per element from the sequence produced by the generator
|
|
|
|
// specified in INSTANTIATE_TEST_CASE_P. It also verifies that the test's
|
|
|
|
// fixture constructor, SetUp(), and TearDown() have run and have been
|
|
|
|
// supplied with the correct parameters.
|
|
|
|
|
|
|
|
// The use of environment object allows detection of the case where no test
|
|
|
|
// case functionality is run at all. In this case TestCaseTearDown will not
|
|
|
|
// be able to detect missing tests, naturally.
|
|
|
|
template <int kExpectedCalls>
|
|
|
|
class TestGenerationEnvironment : public ::testing::Environment {
|
|
|
|
public:
|
|
|
|
static TestGenerationEnvironment* Instance() {
|
|
|
|
static TestGenerationEnvironment* instance = new TestGenerationEnvironment;
|
|
|
|
return instance;
|
|
|
|
}
|
|
|
|
|
|
|
|
void FixtureConstructorExecuted() { fixture_constructor_count_++; }
|
|
|
|
void SetUpExecuted() { set_up_count_++; }
|
|
|
|
void TearDownExecuted() { tear_down_count_++; }
|
|
|
|
void TestBodyExecuted() { test_body_count_++; }
|
|
|
|
|
|
|
|
virtual void TearDown() {
|
|
|
|
// If all MultipleTestGenerationTest tests have been de-selected
|
|
|
|
// by the filter flag, the following checks make no sense.
|
|
|
|
bool perform_check = false;
|
|
|
|
|
|
|
|
for (int i = 0; i < kExpectedCalls; ++i) {
|
|
|
|
Message msg;
|
|
|
|
msg << "TestsExpandedAndRun/" << i;
|
|
|
|
if (UnitTestOptions::FilterMatchesTest(
|
|
|
|
"TestExpansionModule/MultipleTestGenerationTest",
|
|
|
|
msg.GetString().c_str())) {
|
|
|
|
perform_check = true;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (perform_check) {
|
|
|
|
EXPECT_EQ(kExpectedCalls, fixture_constructor_count_)
|
|
|
|
<< "Fixture constructor of ParamTestGenerationTest test case "
|
|
|
|
<< "has not been run as expected.";
|
|
|
|
EXPECT_EQ(kExpectedCalls, set_up_count_)
|
|
|
|
<< "Fixture SetUp method of ParamTestGenerationTest test case "
|
|
|
|
<< "has not been run as expected.";
|
|
|
|
EXPECT_EQ(kExpectedCalls, tear_down_count_)
|
|
|
|
<< "Fixture TearDown method of ParamTestGenerationTest test case "
|
|
|
|
<< "has not been run as expected.";
|
|
|
|
EXPECT_EQ(kExpectedCalls, test_body_count_)
|
|
|
|
<< "Test in ParamTestGenerationTest test case "
|
|
|
|
<< "has not been run as expected.";
|
|
|
|
}
|
|
|
|
}
|
2011-11-04 17:56:23 +00:00
|
|
|
|
2008-11-20 01:40:35 +00:00
|
|
|
private:
|
|
|
|
TestGenerationEnvironment() : fixture_constructor_count_(0), set_up_count_(0),
|
|
|
|
tear_down_count_(0), test_body_count_(0) {}
|
|
|
|
|
|
|
|
int fixture_constructor_count_;
|
|
|
|
int set_up_count_;
|
|
|
|
int tear_down_count_;
|
|
|
|
int test_body_count_;
|
|
|
|
|
|
|
|
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationEnvironment);
|
|
|
|
};
|
|
|
|
|
|
|
|
const int test_generation_params[] = {36, 42, 72};
|
|
|
|
|
|
|
|
class TestGenerationTest : public TestWithParam<int> {
|
|
|
|
public:
|
|
|
|
enum {
|
|
|
|
PARAMETER_COUNT =
|
|
|
|
sizeof(test_generation_params)/sizeof(test_generation_params[0])
|
|
|
|
};
|
|
|
|
|
|
|
|
typedef TestGenerationEnvironment<PARAMETER_COUNT> Environment;
|
|
|
|
|
|
|
|
TestGenerationTest() {
|
|
|
|
Environment::Instance()->FixtureConstructorExecuted();
|
|
|
|
current_parameter_ = GetParam();
|
|
|
|
}
|
|
|
|
virtual void SetUp() {
|
|
|
|
Environment::Instance()->SetUpExecuted();
|
|
|
|
EXPECT_EQ(current_parameter_, GetParam());
|
|
|
|
}
|
|
|
|
virtual void TearDown() {
|
|
|
|
Environment::Instance()->TearDownExecuted();
|
|
|
|
EXPECT_EQ(current_parameter_, GetParam());
|
|
|
|
}
|
|
|
|
|
|
|
|
static void SetUpTestCase() {
|
|
|
|
bool all_tests_in_test_case_selected = true;
|
|
|
|
|
|
|
|
for (int i = 0; i < PARAMETER_COUNT; ++i) {
|
|
|
|
Message test_name;
|
|
|
|
test_name << "TestsExpandedAndRun/" << i;
|
|
|
|
if ( !UnitTestOptions::FilterMatchesTest(
|
|
|
|
"TestExpansionModule/MultipleTestGenerationTest",
|
|
|
|
test_name.GetString())) {
|
|
|
|
all_tests_in_test_case_selected = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
EXPECT_TRUE(all_tests_in_test_case_selected)
|
|
|
|
<< "When running the TestGenerationTest test case all of its tests\n"
|
|
|
|
<< "must be selected by the filter flag for the test case to pass.\n"
|
|
|
|
<< "If not all of them are enabled, we can't reliably conclude\n"
|
|
|
|
<< "that the correct number of tests have been generated.";
|
|
|
|
|
|
|
|
collected_parameters_.clear();
|
|
|
|
}
|
|
|
|
|
|
|
|
static void TearDownTestCase() {
|
|
|
|
vector<int> expected_values(test_generation_params,
|
|
|
|
test_generation_params + PARAMETER_COUNT);
|
|
|
|
// Test execution order is not guaranteed by Google Test,
|
|
|
|
// so the order of values in collected_parameters_ can be
|
|
|
|
// different and we have to sort to compare.
|
|
|
|
sort(expected_values.begin(), expected_values.end());
|
|
|
|
sort(collected_parameters_.begin(), collected_parameters_.end());
|
|
|
|
|
|
|
|
EXPECT_TRUE(collected_parameters_ == expected_values);
|
|
|
|
}
|
2011-11-04 17:56:23 +00:00
|
|
|
|
2008-11-20 01:40:35 +00:00
|
|
|
protected:
|
|
|
|
int current_parameter_;
|
|
|
|
static vector<int> collected_parameters_;
|
|
|
|
|
|
|
|
private:
|
|
|
|
GTEST_DISALLOW_COPY_AND_ASSIGN_(TestGenerationTest);
|
|
|
|
};
|
|
|
|
vector<int> TestGenerationTest::collected_parameters_;
|
|
|
|
|
|
|
|
TEST_P(TestGenerationTest, TestsExpandedAndRun) {
|
|
|
|
Environment::Instance()->TestBodyExecuted();
|
|
|
|
EXPECT_EQ(current_parameter_, GetParam());
|
|
|
|
collected_parameters_.push_back(GetParam());
|
|
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(TestExpansionModule, TestGenerationTest,
|
|
|
|
ValuesIn(test_generation_params));
|
|
|
|
|
|
|
|
// This test verifies that the element sequence (third parameter of
|
2010-03-20 12:33:48 +00:00
|
|
|
// INSTANTIATE_TEST_CASE_P) is evaluated in InitGoogleTest() and neither at
|
|
|
|
// the call site of INSTANTIATE_TEST_CASE_P nor in RUN_ALL_TESTS(). For
|
|
|
|
// that, we declare param_value_ to be a static member of
|
|
|
|
// GeneratorEvaluationTest and initialize it to 0. We set it to 1 in
|
|
|
|
// main(), just before invocation of InitGoogleTest(). After calling
|
|
|
|
// InitGoogleTest(), we set the value to 2. If the sequence is evaluated
|
|
|
|
// before or after InitGoogleTest, INSTANTIATE_TEST_CASE_P will create a
|
|
|
|
// test with parameter other than 1, and the test body will fail the
|
|
|
|
// assertion.
|
2008-11-20 01:40:35 +00:00
|
|
|
class GeneratorEvaluationTest : public TestWithParam<int> {
|
|
|
|
public:
|
|
|
|
static int param_value() { return param_value_; }
|
|
|
|
static void set_param_value(int param_value) { param_value_ = param_value; }
|
|
|
|
|
|
|
|
private:
|
|
|
|
static int param_value_;
|
|
|
|
};
|
|
|
|
int GeneratorEvaluationTest::param_value_ = 0;
|
|
|
|
|
|
|
|
TEST_P(GeneratorEvaluationTest, GeneratorsEvaluatedInMain) {
|
|
|
|
EXPECT_EQ(1, GetParam());
|
|
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(GenEvalModule,
|
|
|
|
GeneratorEvaluationTest,
|
|
|
|
Values(GeneratorEvaluationTest::param_value()));
|
|
|
|
|
|
|
|
// Tests that generators defined in a different translation unit are
|
|
|
|
// functional. Generator extern_gen is defined in gtest-param-test_test2.cc.
|
|
|
|
extern ParamGenerator<int> extern_gen;
|
|
|
|
class ExternalGeneratorTest : public TestWithParam<int> {};
|
|
|
|
TEST_P(ExternalGeneratorTest, ExternalGenerator) {
|
|
|
|
// Sequence produced by extern_gen contains only a single value
|
|
|
|
// which we verify here.
|
|
|
|
EXPECT_EQ(GetParam(), 33);
|
|
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(ExternalGeneratorModule,
|
|
|
|
ExternalGeneratorTest,
|
|
|
|
extern_gen);
|
|
|
|
|
|
|
|
// Tests that a parameterized test case can be defined in one translation
|
|
|
|
// unit and instantiated in another. This test will be instantiated in
|
|
|
|
// gtest-param-test_test2.cc. ExternalInstantiationTest fixture class is
|
|
|
|
// defined in gtest-param-test_test.h.
|
|
|
|
TEST_P(ExternalInstantiationTest, IsMultipleOf33) {
|
|
|
|
EXPECT_EQ(0, GetParam() % 33);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Tests that a parameterized test case can be instantiated with multiple
|
|
|
|
// generators.
|
|
|
|
class MultipleInstantiationTest : public TestWithParam<int> {};
|
|
|
|
TEST_P(MultipleInstantiationTest, AllowsMultipleInstances) {
|
|
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(Sequence1, MultipleInstantiationTest, Values(1, 2));
|
|
|
|
INSTANTIATE_TEST_CASE_P(Sequence2, MultipleInstantiationTest, Range(3, 5));
|
|
|
|
|
|
|
|
// Tests that a parameterized test case can be instantiated
|
|
|
|
// in multiple translation units. This test will be instantiated
|
|
|
|
// here and in gtest-param-test_test2.cc.
|
|
|
|
// InstantiationInMultipleTranslationUnitsTest fixture class
|
|
|
|
// is defined in gtest-param-test_test.h.
|
|
|
|
TEST_P(InstantiationInMultipleTranslaionUnitsTest, IsMultipleOf42) {
|
|
|
|
EXPECT_EQ(0, GetParam() % 42);
|
|
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(Sequence1,
|
|
|
|
InstantiationInMultipleTranslaionUnitsTest,
|
|
|
|
Values(42, 42*2));
|
|
|
|
|
|
|
|
// Tests that each iteration of parameterized test runs in a separate test
|
|
|
|
// object.
|
|
|
|
class SeparateInstanceTest : public TestWithParam<int> {
|
|
|
|
public:
|
|
|
|
SeparateInstanceTest() : count_(0) {}
|
|
|
|
|
|
|
|
static void TearDownTestCase() {
|
|
|
|
EXPECT_GE(global_count_, 2)
|
|
|
|
<< "If some (but not all) SeparateInstanceTest tests have been "
|
|
|
|
<< "filtered out this test will fail. Make sure that all "
|
|
|
|
<< "GeneratorEvaluationTest are selected or de-selected together "
|
|
|
|
<< "by the test filter.";
|
|
|
|
}
|
|
|
|
|
|
|
|
protected:
|
|
|
|
int count_;
|
|
|
|
static int global_count_;
|
|
|
|
};
|
|
|
|
int SeparateInstanceTest::global_count_ = 0;
|
|
|
|
|
|
|
|
TEST_P(SeparateInstanceTest, TestsRunInSeparateInstances) {
|
|
|
|
EXPECT_EQ(0, count_++);
|
|
|
|
global_count_++;
|
|
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(FourElemSequence, SeparateInstanceTest, Range(1, 4));
|
|
|
|
|
|
|
|
// Tests that all instantiations of a test have named appropriately. Test
|
|
|
|
// defined with TEST_P(TestCaseName, TestName) and instantiated with
|
|
|
|
// INSTANTIATE_TEST_CASE_P(SequenceName, TestCaseName, generator) must be named
|
|
|
|
// SequenceName/TestCaseName.TestName/i, where i is the 0-based index of the
|
|
|
|
// sequence element used to instantiate the test.
|
|
|
|
class NamingTest : public TestWithParam<int> {};
|
|
|
|
|
2011-02-02 00:49:33 +00:00
|
|
|
TEST_P(NamingTest, TestsReportCorrectNamesAndParameters) {
|
2008-11-20 01:40:35 +00:00
|
|
|
const ::testing::TestInfo* const test_info =
|
|
|
|
::testing::UnitTest::GetInstance()->current_test_info();
|
|
|
|
|
|
|
|
EXPECT_STREQ("ZeroToFiveSequence/NamingTest", test_info->test_case_name());
|
|
|
|
|
2010-05-18 21:13:48 +00:00
|
|
|
Message index_stream;
|
2011-02-02 00:49:33 +00:00
|
|
|
index_stream << "TestsReportCorrectNamesAndParameters/" << GetParam();
|
2010-05-18 21:13:48 +00:00
|
|
|
EXPECT_STREQ(index_stream.GetString().c_str(), test_info->name());
|
|
|
|
|
2011-02-02 00:49:33 +00:00
|
|
|
EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param());
|
2008-11-20 01:40:35 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
INSTANTIATE_TEST_CASE_P(ZeroToFiveSequence, NamingTest, Range(0, 5));
|
|
|
|
|
2010-05-18 21:13:48 +00:00
|
|
|
// Class that cannot be streamed into an ostream. It needs to be copyable
|
|
|
|
// (and, in case of MSVC, also assignable) in order to be a test parameter
|
|
|
|
// type. Its default copy constructor and assignment operator do exactly
|
|
|
|
// what we need.
|
|
|
|
class Unstreamable {
|
|
|
|
public:
|
|
|
|
explicit Unstreamable(int value) : value_(value) {}
|
|
|
|
|
|
|
|
private:
|
|
|
|
int value_;
|
|
|
|
};
|
|
|
|
|
|
|
|
class CommentTest : public TestWithParam<Unstreamable> {};
|
|
|
|
|
2011-02-02 00:49:33 +00:00
|
|
|
TEST_P(CommentTest, TestsCorrectlyReportUnstreamableParams) {
|
2010-05-18 21:13:48 +00:00
|
|
|
const ::testing::TestInfo* const test_info =
|
|
|
|
::testing::UnitTest::GetInstance()->current_test_info();
|
|
|
|
|
2011-02-02 00:49:33 +00:00
|
|
|
EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param());
|
2010-05-18 21:13:48 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
INSTANTIATE_TEST_CASE_P(InstantiationWithComments,
|
|
|
|
CommentTest,
|
|
|
|
Values(Unstreamable(1)));
|
|
|
|
|
2010-12-06 22:18:59 +00:00
|
|
|
// Verify that we can create a hierarchy of test fixtures, where the base
|
|
|
|
// class fixture is not parameterized and the derived class is. In this case
|
|
|
|
// ParameterizedDerivedTest inherits from NonParameterizedBaseTest. We
|
|
|
|
// perform simple tests on both.
|
|
|
|
class NonParameterizedBaseTest : public ::testing::Test {
|
|
|
|
public:
|
|
|
|
NonParameterizedBaseTest() : n_(17) { }
|
|
|
|
protected:
|
|
|
|
int n_;
|
|
|
|
};
|
|
|
|
|
|
|
|
class ParameterizedDerivedTest : public NonParameterizedBaseTest,
|
|
|
|
public ::testing::WithParamInterface<int> {
|
|
|
|
protected:
|
|
|
|
ParameterizedDerivedTest() : count_(0) { }
|
|
|
|
int count_;
|
|
|
|
static int global_count_;
|
|
|
|
};
|
|
|
|
|
|
|
|
int ParameterizedDerivedTest::global_count_ = 0;
|
|
|
|
|
|
|
|
TEST_F(NonParameterizedBaseTest, FixtureIsInitialized) {
|
|
|
|
EXPECT_EQ(17, n_);
|
|
|
|
}
|
|
|
|
|
|
|
|
TEST_P(ParameterizedDerivedTest, SeesSequence) {
|
|
|
|
EXPECT_EQ(17, n_);
|
|
|
|
EXPECT_EQ(0, count_++);
|
|
|
|
EXPECT_EQ(GetParam(), global_count_++);
|
|
|
|
}
|
|
|
|
|
|
|
|
INSTANTIATE_TEST_CASE_P(RangeZeroToFive, ParameterizedDerivedTest, Range(0, 5));
|
|
|
|
|
2008-11-20 01:40:35 +00:00
|
|
|
#endif // GTEST_HAS_PARAM_TEST
|
|
|
|
|
|
|
|
TEST(CompileTest, CombineIsDefinedOnlyWhenGtestHasParamTestIsDefined) {
|
2009-02-23 23:21:55 +00:00
|
|
|
#if GTEST_HAS_COMBINE && !GTEST_HAS_PARAM_TEST
|
2008-11-20 01:40:35 +00:00
|
|
|
FAIL() << "GTEST_HAS_COMBINE is defined while GTEST_HAS_PARAM_TEST is not\n"
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char **argv) {
|
2009-02-23 23:21:55 +00:00
|
|
|
#if GTEST_HAS_PARAM_TEST
|
2008-11-20 01:40:35 +00:00
|
|
|
// Used in TestGenerationTest test case.
|
|
|
|
AddGlobalTestEnvironment(TestGenerationTest::Environment::Instance());
|
2010-03-20 12:33:48 +00:00
|
|
|
// Used in GeneratorEvaluationTest test case. Tests that the updated value
|
|
|
|
// will be picked up for instantiating tests in GeneratorEvaluationTest.
|
2008-11-20 01:40:35 +00:00
|
|
|
GeneratorEvaluationTest::set_param_value(1);
|
|
|
|
#endif // GTEST_HAS_PARAM_TEST
|
|
|
|
|
2009-05-29 19:46:51 +00:00
|
|
|
::testing::InitGoogleTest(&argc, argv);
|
2010-03-20 12:33:48 +00:00
|
|
|
|
|
|
|
#if GTEST_HAS_PARAM_TEST
|
|
|
|
// Used in GeneratorEvaluationTest test case. Tests that value updated
|
|
|
|
// here will NOT be used for instantiating tests in
|
|
|
|
// GeneratorEvaluationTest.
|
|
|
|
GeneratorEvaluationTest::set_param_value(2);
|
|
|
|
#endif // GTEST_HAS_PARAM_TEST
|
|
|
|
|
2008-11-20 01:40:35 +00:00
|
|
|
return RUN_ALL_TESTS();
|
|
|
|
}
|