+++ /dev/null
-// 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 ::testing::get;
-using ::testing::make_tuple;
-using ::testing::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 std::string& value() const { return value_; }
-
- private:
- std::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));
-
-// Tests that user supplied custom parameter names are working correctly.
-// Runs the test with a builtin helper method which uses PrintToString,
-// as well as a custom function and custom functor to ensure all possible
-// uses work correctly.
-class CustomFunctorNamingTest : public TestWithParam<std::string> {};
-TEST_P(CustomFunctorNamingTest, CustomTestNames) {}
-
-struct CustomParamNameFunctor {
- std::string operator()(const ::testing::TestParamInfo<std::string>& info) {
- return info.param;
- }
-};
-
-INSTANTIATE_TEST_CASE_P(CustomParamNameFunctor,
- CustomFunctorNamingTest,
- Values(std::string("FunctorName")),
- CustomParamNameFunctor());
-
-INSTANTIATE_TEST_CASE_P(AllAllowedCharacters,
- CustomFunctorNamingTest,
- Values("abcdefghijklmnopqrstuvwxyz",
- "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
- "01234567890_"),
- CustomParamNameFunctor());
-
-inline std::string CustomParamNameFunction(
- const ::testing::TestParamInfo<std::string>& info) {
- return info.param;
-}
-
-class CustomFunctionNamingTest : public TestWithParam<std::string> {};
-TEST_P(CustomFunctionNamingTest, CustomTestNames) {}
-
-INSTANTIATE_TEST_CASE_P(CustomParamNameFunction,
- CustomFunctionNamingTest,
- Values(std::string("FunctionName")),
- CustomParamNameFunction);
-
-#if GTEST_LANG_CXX11
-
-// Test custom naming with a lambda
-
-class CustomLambdaNamingTest : public TestWithParam<std::string> {};
-TEST_P(CustomLambdaNamingTest, CustomTestNames) {}
-
-INSTANTIATE_TEST_CASE_P(CustomParamNameLambda,
- CustomLambdaNamingTest,
- Values(std::string("LambdaName")),
- [](const ::testing::TestParamInfo<std::string>& info) {
- return info.param;
- });
-
-#endif // GTEST_LANG_CXX11
-
-TEST(CustomNamingTest, CheckNameRegistry) {
- ::testing::UnitTest* unit_test = ::testing::UnitTest::GetInstance();
- std::set<std::string> test_names;
- for (int case_num = 0;
- case_num < unit_test->total_test_case_count();
- ++case_num) {
- const ::testing::TestCase* test_case = unit_test->GetTestCase(case_num);
- for (int test_num = 0;
- test_num < test_case->total_test_count();
- ++test_num) {
- const ::testing::TestInfo* test_info = test_case->GetTestInfo(test_num);
- test_names.insert(std::string(test_info->name()));
- }
- }
- EXPECT_EQ(1u, test_names.count("CustomTestNames/FunctorName"));
- EXPECT_EQ(1u, test_names.count("CustomTestNames/FunctionName"));
-#if GTEST_LANG_CXX11
- EXPECT_EQ(1u, test_names.count("CustomTestNames/LambdaName"));
-#endif // GTEST_LANG_CXX11
-}
-
-// Test a numeric name to ensure PrintToStringParamName works correctly.
-
-class CustomIntegerNamingTest : public TestWithParam<int> {};
-
-TEST_P(CustomIntegerNamingTest, TestsReportCorrectNames) {
- const ::testing::TestInfo* const test_info =
- ::testing::UnitTest::GetInstance()->current_test_info();
- Message test_name_stream;
- test_name_stream << "TestsReportCorrectNames/" << GetParam();
- EXPECT_STREQ(test_name_stream.GetString().c_str(), test_info->name());
-}
-
-INSTANTIATE_TEST_CASE_P(PrintToString,
- CustomIntegerNamingTest,
- Range(0, 5),
- ::testing::PrintToStringParamName());
-
-// Test a custom struct with PrintToString.
-
-struct CustomStruct {
- explicit CustomStruct(int value) : x(value) {}
- int x;
-};
-
-std::ostream& operator<<(std::ostream& stream, const CustomStruct& val) {
- stream << val.x;
- return stream;
-}
-
-class CustomStructNamingTest : public TestWithParam<CustomStruct> {};
-
-TEST_P(CustomStructNamingTest, TestsReportCorrectNames) {
- const ::testing::TestInfo* const test_info =
- ::testing::UnitTest::GetInstance()->current_test_info();
- Message test_name_stream;
- test_name_stream << "TestsReportCorrectNames/" << GetParam();
- EXPECT_STREQ(test_name_stream.GetString().c_str(), test_info->name());
-}
-
-INSTANTIATE_TEST_CASE_P(PrintToString,
- CustomStructNamingTest,
- Values(CustomStruct(0), CustomStruct(1)),
- ::testing::PrintToStringParamName());
-
-// Test that using a stateful parameter naming function works as expected.
-
-struct StatefulNamingFunctor {
- StatefulNamingFunctor() : sum(0) {}
- std::string operator()(const ::testing::TestParamInfo<int>& info) {
- int value = info.param + sum;
- sum += info.param;
- return ::testing::PrintToString(value);
- }
- int sum;
-};
-
-class StatefulNamingTest : public ::testing::TestWithParam<int> {
- protected:
- StatefulNamingTest() : sum_(0) {}
- int sum_;
-};
-
-TEST_P(StatefulNamingTest, TestsReportCorrectNames) {
- const ::testing::TestInfo* const test_info =
- ::testing::UnitTest::GetInstance()->current_test_info();
- sum_ += GetParam();
- Message test_name_stream;
- test_name_stream << "TestsReportCorrectNames/" << sum_;
- EXPECT_STREQ(test_name_stream.GetString().c_str(), test_info->name());
-}
-
-INSTANTIATE_TEST_CASE_P(StatefulNamingFunctor,
- StatefulNamingTest,
- Range(0, 5),
- StatefulNamingFunctor());
-
-// 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_++);
-}
-
-class ParameterizedDeathTest : public ::testing::TestWithParam<int> { };
-
-TEST_F(ParameterizedDeathTest, GetParamDiesFromTestF) {
- EXPECT_DEATH_IF_SUPPORTED(GetParam(),
- ".* value-parameterized test .*");
-}
-
-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();
-}
projects / ceph.git / blobdiff