The Tor Browser: comparison media/webrtc/trunk/testing/gtest/test/gtest-param-test

--1:000000000000
+:80ebf6037afd
+// 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.
+//
+// Author: vladl@google.com (Vlad Losev)
+//
+// Tests for Google Test itself. This file verifies that the parameter
+// generators objects produce correct parameter sequences and that
+// Google Test runtime instantiates correct tests from those sequences.
+#include "gtest/gtest.h"
+#if GTEST_HAS_PARAM_TEST
+# include <algorithm>
+# include <iostream>
+# include <list>
+# include <sstream>
+# include <string>
+# include <vector>
+// To include gtest-internal-inl.h.
+# define GTEST_IMPLEMENTATION_ 1
+# include "src/gtest-internal-inl.h"  // for UnitTestOptions
+# undef GTEST_IMPLEMENTATION_
+# include "test/gtest-param-test_test.h"
+using ::std::vector;
+using ::std::sort;
+using ::testing::AddGlobalTestEnvironment;
+using ::testing::Bool;
+using ::testing::Message;
+using ::testing::Range;
+using ::testing::TestWithParam;
+using ::testing::Values;
+using ::testing::ValuesIn;
+# if GTEST_HAS_COMBINE
+using ::testing::Combine;
+using ::std::tr1::get;
+using ::std::tr1::make_tuple;
+using ::std::tr1::tuple;
+# endif  // GTEST_HAS_COMBINE
+using ::testing::internal::ParamGenerator;
+using ::testing::internal::UnitTestOptions;
+// Prints a value to a string.
+//
+// TODO(wan@google.com): remove PrintValue() when we move matchers and
+// EXPECT_THAT() from Google Mock to Google Test.  At that time, we
+// can write EXPECT_THAT(x, Eq(y)) to compare two tuples x and y, as
+// EXPECT_THAT() and the matchers know how to print tuples.
+template <typename T>
+::std::string PrintValue(const T& value) {
+::std::stringstream stream;
+stream << value;
+return stream.str();
+}
+# if GTEST_HAS_COMBINE
+// These overloads allow printing tuples in our tests.  We cannot
+// define an operator<< for tuples, as that definition needs to be in
+// the std namespace in order to be picked up by Google Test via
+// Argument-Dependent Lookup, yet defining anything in the std
+// namespace in non-STL code is undefined behavior.
+template <typename T1, typename T2>
+::std::string PrintValue(const tuple<T1, T2>& value) {
+::std::stringstream stream;
+stream << "(" << get<0>(value) << ", " << get<1>(value) << ")";
+return stream.str();
+}
+template <typename T1, typename T2, typename T3>
+::std::string PrintValue(const tuple<T1, T2, T3>& value) {
+::std::stringstream stream;
+stream << "(" << get<0>(value) << ", " << get<1>(value)
+<< ", "<< get<2>(value) << ")";
+return stream.str();
+}
+template <typename T1, typename T2, typename T3, typename T4, typename T5,
+typename T6, typename T7, typename T8, typename T9, typename T10>
+::std::string PrintValue(
+const tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>& value) {
+::std::stringstream stream;
+stream << "(" << get<0>(value) << ", " << get<1>(value)
+<< ", "<< get<2>(value) << ", " << get<3>(value)
+<< ", "<< get<4>(value) << ", " << get<5>(value)
+<< ", "<< get<6>(value) << ", " << get<7>(value)
+<< ", "<< get<8>(value) << ", " << get<9>(value) << ")";
+return stream.str();
+}
+# endif  // GTEST_HAS_COMBINE
+// Verifies that a sequence generated by the generator and accessed
+// via the iterator object matches the expected one using Google Test
+// assertions.
+template <typename T, size_t N>
+void VerifyGenerator(const ParamGenerator<T>& generator,
+const T (&expected_values)[N]) {
+typename ParamGenerator<T>::iterator it = generator.begin();
+for (size_t i = 0; i < N; ++i) {
+ASSERT_FALSE(it == generator.end())
+<< "At element " << i << " when accessing via an iterator "
+<< "created with the copy constructor.\n";
+// We cannot use EXPECT_EQ() here as the values may be tuples,
+// which don't support <<.
+EXPECT_TRUE(expected_values[i] == *it)
+<< "where i is " << i
+<< ", expected_values[i] is " << PrintValue(expected_values[i])
+<< ", *it is " << PrintValue(*it)
+<< ", and 'it' is an iterator created with the copy constructor.\n";
+it++;
+}
+EXPECT_TRUE(it == generator.end())
+<< "At the presumed end of sequence when accessing via an iterator "
+<< "created with the copy constructor.\n";
+// Test the iterator assignment. The following lines verify that
+// the sequence accessed via an iterator initialized via the
+// assignment operator (as opposed to a copy constructor) matches
+// just the same.
+it = generator.begin();
+for (size_t i = 0; i < N; ++i) {
+ASSERT_FALSE(it == generator.end())
+<< "At element " << i << " when accessing via an iterator "
+<< "created with the assignment operator.\n";
+EXPECT_TRUE(expected_values[i] == *it)
+<< "where i is " << i
+<< ", expected_values[i] is " << PrintValue(expected_values[i])
+<< ", *it is " << PrintValue(*it)
+<< ", and 'it' is an iterator created with the copy constructor.\n";
+it++;
+}
+EXPECT_TRUE(it == generator.end())
+<< "At the presumed end of sequence when accessing via an iterator "
+<< "created with the assignment operator.\n";
+}
+template <typename T>
+void VerifyGeneratorIsEmpty(const ParamGenerator<T>& generator) {
+typename ParamGenerator<T>::iterator it = generator.begin();
+EXPECT_TRUE(it == generator.end());
+it = generator.begin();
+EXPECT_TRUE(it == generator.end());
+}
+// Generator tests. They test that each of the provided generator functions
+// generates an expected sequence of values. The general test pattern
+// instantiates a generator using one of the generator functions,
+// checks the sequence produced by the generator using its iterator API,
+// and then resets the iterator back to the beginning of the sequence
+// and checks the sequence again.
+// Tests that iterators produced by generator functions conform to the
+// ForwardIterator concept.
+TEST(IteratorTest, ParamIteratorConformsToForwardIteratorConcept) {
+const ParamGenerator<int> gen = Range(0, 10);
+ParamGenerator<int>::iterator it = gen.begin();
+// Verifies that iterator initialization works as expected.
+ParamGenerator<int>::iterator it2 = it;
+EXPECT_TRUE(*it == *it2) << "Initialized iterators must point to the "
+<< "element same as its source points to";
+// Verifies that iterator assignment works as expected.
+it++;
+EXPECT_FALSE(*it == *it2);
+it2 = it;
+EXPECT_TRUE(*it == *it2) << "Assigned iterators must point to the "
+<< "element same as its source points to";
+// Verifies that prefix operator++() returns *this.
+EXPECT_EQ(&it, &(++it)) << "Result of the prefix operator++ must be "
+<< "refer to the original object";
+// Verifies that the result of the postfix operator++ points to the value
+// pointed to by the original iterator.
+int original_value = *it;  // Have to compute it outside of macro call to be
+// unaffected by the parameter evaluation order.
+EXPECT_EQ(original_value, *(it++));
+// Verifies that prefix and postfix operator++() advance an iterator
+// all the same.
+it2 = it;
+it++;
+++it2;
+EXPECT_TRUE(*it == *it2);
+}
+// Tests that Range() generates the expected sequence.
+TEST(RangeTest, IntRangeWithDefaultStep) {
+const ParamGenerator<int> gen = Range(0, 3);
+const int expected_values[] = {0, 1, 2};
+VerifyGenerator(gen, expected_values);
+}
+// Edge case. Tests that Range() generates the single element sequence
+// as expected when provided with range limits that are equal.
+TEST(RangeTest, IntRangeSingleValue) {
+const ParamGenerator<int> gen = Range(0, 1);
+const int expected_values[] = {0};
+VerifyGenerator(gen, expected_values);
+}
+// Edge case. Tests that Range() with generates empty sequence when
+// supplied with an empty range.
+TEST(RangeTest, IntRangeEmpty) {
+const ParamGenerator<int> gen = Range(0, 0);
+VerifyGeneratorIsEmpty(gen);
+}
+// Tests that Range() with custom step (greater then one) generates
+// the expected sequence.
+TEST(RangeTest, IntRangeWithCustomStep) {
+const ParamGenerator<int> gen = Range(0, 9, 3);
+const int expected_values[] = {0, 3, 6};
+VerifyGenerator(gen, expected_values);
+}
+// Tests that Range() with custom step (greater then one) generates
+// the expected sequence when the last element does not fall on the
+// upper range limit. Sequences generated by Range() must not have
+// elements beyond the range limits.
+TEST(RangeTest, IntRangeWithCustomStepOverUpperBound) {
+const ParamGenerator<int> gen = Range(0, 4, 3);
+const int expected_values[] = {0, 3};
+VerifyGenerator(gen, expected_values);
+}
+// Verifies that Range works with user-defined types that define
+// copy constructor, operator=(), operator+(), and operator<().
+class DogAdder {
+public:
+explicit DogAdder(const char* a_value) : value_(a_value) {}
+DogAdder(const DogAdder& other) : value_(other.value_.c_str()) {}
+DogAdder operator=(const DogAdder& other) {
+if (this != &other)
+value_ = other.value_;
+return *this;
+}
+DogAdder operator+(const DogAdder& other) const {
+Message msg;
+msg << value_.c_str() << other.value_.c_str();
+return DogAdder(msg.GetString().c_str());
+}
+bool operator<(const DogAdder& other) const {
+return value_ < other.value_;
+}
+const ::testing::internal::String& value() const { return value_; }
+private:
+::testing::internal::String value_;
+};
+TEST(RangeTest, WorksWithACustomType) {
+const ParamGenerator<DogAdder> gen =
+Range(DogAdder("cat"), DogAdder("catdogdog"), DogAdder("dog"));
+ParamGenerator<DogAdder>::iterator it = gen.begin();
+ASSERT_FALSE(it == gen.end());
+EXPECT_STREQ("cat", it->value().c_str());
+ASSERT_FALSE(++it == gen.end());
+EXPECT_STREQ("catdog", it->value().c_str());
+EXPECT_TRUE(++it == gen.end());
+}
+class IntWrapper {
+public:
+explicit IntWrapper(int a_value) : value_(a_value) {}
+IntWrapper(const IntWrapper& other) : value_(other.value_) {}
+IntWrapper operator=(const IntWrapper& other) {
+value_ = other.value_;
+return *this;
+}
+// operator+() adds a different type.
+IntWrapper operator+(int other) const { return IntWrapper(value_ + other); }
+bool operator<(const IntWrapper& other) const {
+return value_ < other.value_;
+}
+int value() const { return value_; }
+private:
+int value_;
+};
+TEST(RangeTest, WorksWithACustomTypeWithDifferentIncrementType) {
+const ParamGenerator<IntWrapper> gen = Range(IntWrapper(0), IntWrapper(2));
+ParamGenerator<IntWrapper>::iterator it = gen.begin();
+ASSERT_FALSE(it == gen.end());
+EXPECT_EQ(0, it->value());
+ASSERT_FALSE(++it == gen.end());
+EXPECT_EQ(1, it->value());
+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);
+}
+# if GTEST_HAS_COMBINE
+// 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);
+}
+# endif  // GTEST_HAS_COMBINE
+// 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.";
+}
+}
+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);
+}
+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
+// 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.
+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> {};
+TEST_P(NamingTest, TestsReportCorrectNamesAndParameters) {
+const ::testing::TestInfo* const test_info =
+::testing::UnitTest::GetInstance()->current_test_info();
+EXPECT_STREQ("ZeroToFiveSequence/NamingTest", test_info->test_case_name());
+Message index_stream;
+index_stream << "TestsReportCorrectNamesAndParameters/" << GetParam();
+EXPECT_STREQ(index_stream.GetString().c_str(), test_info->name());
+EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param());
+}
+INSTANTIATE_TEST_CASE_P(ZeroToFiveSequence, NamingTest, Range(0, 5));
+// 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> {};
+TEST_P(CommentTest, TestsCorrectlyReportUnstreamableParams) {
+const ::testing::TestInfo* const test_info =
+::testing::UnitTest::GetInstance()->current_test_info();
+EXPECT_EQ(::testing::PrintToString(GetParam()), test_info->value_param());
+}
+INSTANTIATE_TEST_CASE_P(InstantiationWithComments,
+CommentTest,
+Values(Unstreamable(1)));
+// 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));
+#endif  // GTEST_HAS_PARAM_TEST
+TEST(CompileTest, CombineIsDefinedOnlyWhenGtestHasParamTestIsDefined) {
+#if GTEST_HAS_COMBINE && !GTEST_HAS_PARAM_TEST
+FAIL() << "GTEST_HAS_COMBINE is defined while GTEST_HAS_PARAM_TEST is not\n"
+#endif
+}
+int main(int argc, char **argv) {
+#if GTEST_HAS_PARAM_TEST
+// Used in TestGenerationTest test case.
+AddGlobalTestEnvironment(TestGenerationTest::Environment::Instance());
+// Used in GeneratorEvaluationTest test case. Tests that the updated value
+// will be picked up for instantiating tests in GeneratorEvaluationTest.
+GeneratorEvaluationTest::set_param_value(1);
+#endif  // GTEST_HAS_PARAM_TEST
+::testing::InitGoogleTest(&argc, argv);
+#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
+return RUN_ALL_TESTS();
+}

The Tor Browser / file comparison

comparison: media/webrtc/trunk/testing/gtest/test/gtest-param-test_test.cc

media/webrtc/trunk/testing/gtest/test/gtest-param-test_test.cc