mirror of
https://github.com/triqs/dft_tools
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1056 lines
38 KiB
C++
1056 lines
38 KiB
C++
// 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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// 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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#include "gtest/gtest.h"
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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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# include "src/gtest-internal-inl.h" // for UnitTestOptions
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# include "test/googletest-param-test-test.h"
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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::Combine;
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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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using ::testing::internal::ParamGenerator;
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using ::testing::internal::UnitTestOptions;
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// Prints a value to a string.
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//
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// FIXME: 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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return testing::PrintToString(value);
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}
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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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<< "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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++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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<< "created with the copy constructor.\n";
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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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<< "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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++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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<< "created with the assignment operator.\n";
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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());
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}
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// Tests that ValuesIn() with an array parameter generates
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// the expected sequence.
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TEST(ValuesInTest, ValuesInArray) {
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int array[] = {3, 5, 8};
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const ParamGenerator<int> gen = ValuesIn(array);
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VerifyGenerator(gen, array);
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}
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// Tests that ValuesIn() with a const array parameter generates
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// the expected sequence.
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TEST(ValuesInTest, ValuesInConstArray) {
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const int array[] = {3, 5, 8};
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const ParamGenerator<int> gen = ValuesIn(array);
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VerifyGenerator(gen, array);
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}
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// Edge case. Tests that ValuesIn() with an array parameter containing a
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// single element generates the single element sequence.
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TEST(ValuesInTest, ValuesInSingleElementArray) {
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int array[] = {42};
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const ParamGenerator<int> gen = ValuesIn(array);
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VerifyGenerator(gen, array);
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}
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// Tests that ValuesIn() generates the expected sequence for an STL
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// container (vector).
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TEST(ValuesInTest, ValuesInVector) {
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typedef ::std::vector<int> ContainerType;
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ContainerType values;
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values.push_back(3);
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values.push_back(5);
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values.push_back(8);
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const ParamGenerator<int> gen = ValuesIn(values);
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const int expected_values[] = {3, 5, 8};
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VerifyGenerator(gen, expected_values);
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}
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// Tests that ValuesIn() generates the expected sequence.
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TEST(ValuesInTest, ValuesInIteratorRange) {
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typedef ::std::vector<int> ContainerType;
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ContainerType values;
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values.push_back(3);
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values.push_back(5);
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values.push_back(8);
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const ParamGenerator<int> gen = ValuesIn(values.begin(), values.end());
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const int expected_values[] = {3, 5, 8};
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VerifyGenerator(gen, expected_values);
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}
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// Edge case. Tests that ValuesIn() provided with an iterator range specifying a
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// single value generates a single-element sequence.
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TEST(ValuesInTest, ValuesInSingleElementIteratorRange) {
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typedef ::std::vector<int> ContainerType;
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ContainerType values;
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values.push_back(42);
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const ParamGenerator<int> gen = ValuesIn(values.begin(), values.end());
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const int expected_values[] = {42};
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VerifyGenerator(gen, expected_values);
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}
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// Edge case. Tests that ValuesIn() provided with an empty iterator range
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// generates an empty sequence.
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TEST(ValuesInTest, ValuesInEmptyIteratorRange) {
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typedef ::std::vector<int> ContainerType;
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ContainerType values;
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const ParamGenerator<int> gen = ValuesIn(values.begin(), values.end());
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VerifyGeneratorIsEmpty(gen);
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}
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// Tests that the Values() generates the expected sequence.
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TEST(ValuesTest, ValuesWorks) {
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const ParamGenerator<int> gen = Values(3, 5, 8);
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const int expected_values[] = {3, 5, 8};
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VerifyGenerator(gen, expected_values);
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}
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// Tests that Values() generates the expected sequences from elements of
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// different types convertible to ParamGenerator's parameter type.
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TEST(ValuesTest, ValuesWorksForValuesOfCompatibleTypes) {
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const ParamGenerator<double> gen = Values(3, 5.0f, 8.0);
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const double expected_values[] = {3.0, 5.0, 8.0};
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VerifyGenerator(gen, expected_values);
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}
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TEST(ValuesTest, ValuesWorksForMaxLengthList) {
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const ParamGenerator<int> gen = Values(
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10, 20, 30, 40, 50, 60, 70, 80, 90, 100,
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110, 120, 130, 140, 150, 160, 170, 180, 190, 200,
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210, 220, 230, 240, 250, 260, 270, 280, 290, 300,
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310, 320, 330, 340, 350, 360, 370, 380, 390, 400,
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410, 420, 430, 440, 450, 460, 470, 480, 490, 500);
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const int expected_values[] = {
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10, 20, 30, 40, 50, 60, 70, 80, 90, 100,
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110, 120, 130, 140, 150, 160, 170, 180, 190, 200,
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210, 220, 230, 240, 250, 260, 270, 280, 290, 300,
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310, 320, 330, 340, 350, 360, 370, 380, 390, 400,
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410, 420, 430, 440, 450, 460, 470, 480, 490, 500};
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VerifyGenerator(gen, expected_values);
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}
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// Edge case test. Tests that single-parameter Values() generates the sequence
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// with the single value.
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TEST(ValuesTest, ValuesWithSingleParameter) {
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const ParamGenerator<int> gen = Values(42);
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const int expected_values[] = {42};
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VerifyGenerator(gen, expected_values);
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}
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// Tests that Bool() generates sequence (false, true).
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TEST(BoolTest, BoolWorks) {
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const ParamGenerator<bool> gen = Bool();
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const bool expected_values[] = {false, true};
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VerifyGenerator(gen, expected_values);
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}
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// Tests that Combine() with two parameters generates the expected sequence.
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TEST(CombineTest, CombineWithTwoParameters) {
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const char* foo = "foo";
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const char* bar = "bar";
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const ParamGenerator<std::tuple<const char*, int> > gen =
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Combine(Values(foo, bar), Values(3, 4));
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std::tuple<const char*, int> expected_values[] = {
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std::make_tuple(foo, 3), std::make_tuple(foo, 4), std::make_tuple(bar, 3),
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std::make_tuple(bar, 4)};
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VerifyGenerator(gen, expected_values);
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}
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// Tests that Combine() with three parameters generates the expected sequence.
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TEST(CombineTest, CombineWithThreeParameters) {
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const ParamGenerator<std::tuple<int, int, int> > gen =
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Combine(Values(0, 1), Values(3, 4), Values(5, 6));
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std::tuple<int, int, int> expected_values[] = {
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std::make_tuple(0, 3, 5), std::make_tuple(0, 3, 6),
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std::make_tuple(0, 4, 5), std::make_tuple(0, 4, 6),
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std::make_tuple(1, 3, 5), std::make_tuple(1, 3, 6),
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std::make_tuple(1, 4, 5), std::make_tuple(1, 4, 6)};
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VerifyGenerator(gen, expected_values);
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}
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// Tests that the Combine() with the first parameter generating a single value
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// sequence generates a sequence with the number of elements equal to the
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// number of elements in the sequence generated by the second parameter.
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TEST(CombineTest, CombineWithFirstParameterSingleValue) {
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const ParamGenerator<std::tuple<int, int> > gen =
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Combine(Values(42), Values(0, 1));
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std::tuple<int, int> expected_values[] = {std::make_tuple(42, 0),
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std::make_tuple(42, 1)};
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VerifyGenerator(gen, expected_values);
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}
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// Tests that the Combine() with the second parameter generating a single value
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// sequence generates a sequence with the number of elements equal to the
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// number of elements in the sequence generated by the first parameter.
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TEST(CombineTest, CombineWithSecondParameterSingleValue) {
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const ParamGenerator<std::tuple<int, int> > gen =
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Combine(Values(0, 1), Values(42));
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std::tuple<int, int> expected_values[] = {std::make_tuple(0, 42),
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std::make_tuple(1, 42)};
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VerifyGenerator(gen, expected_values);
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}
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// Tests that when the first parameter produces an empty sequence,
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// Combine() produces an empty sequence, too.
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TEST(CombineTest, CombineWithFirstParameterEmptyRange) {
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const ParamGenerator<std::tuple<int, int> > gen =
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Combine(Range(0, 0), Values(0, 1));
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VerifyGeneratorIsEmpty(gen);
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}
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// Tests that when the second parameter produces an empty sequence,
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// Combine() produces an empty sequence, too.
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TEST(CombineTest, CombineWithSecondParameterEmptyRange) {
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const ParamGenerator<std::tuple<int, int> > gen =
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Combine(Values(0, 1), Range(1, 1));
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VerifyGeneratorIsEmpty(gen);
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}
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// Edge case. Tests that combine works with the maximum number
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// of parameters supported by Google Test (currently 10).
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TEST(CombineTest, CombineWithMaxNumberOfParameters) {
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const char* foo = "foo";
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const char* bar = "bar";
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const ParamGenerator<
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std::tuple<const char*, int, int, int, int, int, int, int, int, int> >
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gen =
|
|
Combine(Values(foo, bar), Values(1), Values(2), Values(3), Values(4),
|
|
Values(5), Values(6), Values(7), Values(8), Values(9));
|
|
|
|
std::tuple<const char*, int, int, int, int, int, int, int, int, int>
|
|
expected_values[] = {std::make_tuple(foo, 1, 2, 3, 4, 5, 6, 7, 8, 9),
|
|
std::make_tuple(bar, 1, 2, 3, 4, 5, 6, 7, 8, 9)};
|
|
VerifyGenerator(gen, expected_values);
|
|
}
|
|
|
|
class NonDefaultConstructAssignString {
|
|
public:
|
|
NonDefaultConstructAssignString(const std::string& s) : str_(s) {}
|
|
|
|
const std::string& str() const { return str_; }
|
|
|
|
private:
|
|
std::string str_;
|
|
|
|
// Not default constructible
|
|
NonDefaultConstructAssignString();
|
|
// Not assignable
|
|
void operator=(const NonDefaultConstructAssignString&);
|
|
};
|
|
|
|
TEST(CombineTest, NonDefaultConstructAssign) {
|
|
const ParamGenerator<std::tuple<int, NonDefaultConstructAssignString> > gen =
|
|
Combine(Values(0, 1), Values(NonDefaultConstructAssignString("A"),
|
|
NonDefaultConstructAssignString("B")));
|
|
|
|
ParamGenerator<std::tuple<int, NonDefaultConstructAssignString> >::iterator
|
|
it = gen.begin();
|
|
|
|
EXPECT_EQ(0, std::get<0>(*it));
|
|
EXPECT_EQ("A", std::get<1>(*it).str());
|
|
++it;
|
|
|
|
EXPECT_EQ(0, std::get<0>(*it));
|
|
EXPECT_EQ("B", std::get<1>(*it).str());
|
|
++it;
|
|
|
|
EXPECT_EQ(1, std::get<0>(*it));
|
|
EXPECT_EQ("A", std::get<1>(*it).str());
|
|
++it;
|
|
|
|
EXPECT_EQ(1, std::get<0>(*it));
|
|
EXPECT_EQ("B", std::get<1>(*it).str());
|
|
++it;
|
|
|
|
EXPECT_TRUE(it == gen.end());
|
|
}
|
|
|
|
|
|
// 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_SUITE_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 TearDownTestSuite 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_++; }
|
|
|
|
void TearDown() override {
|
|
// 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();
|
|
}
|
|
void SetUp() override {
|
|
Environment::Instance()->SetUpExecuted();
|
|
EXPECT_EQ(current_parameter_, GetParam());
|
|
}
|
|
void TearDown() override {
|
|
Environment::Instance()->TearDownExecuted();
|
|
EXPECT_EQ(current_parameter_, GetParam());
|
|
}
|
|
|
|
static void SetUpTestSuite() {
|
|
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 TearDownTestSuite() {
|
|
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_SUITE_P(TestExpansionModule, TestGenerationTest,
|
|
ValuesIn(test_generation_params));
|
|
|
|
// This test verifies that the element sequence (third parameter of
|
|
// INSTANTIATE_TEST_SUITE_P) is evaluated in InitGoogleTest() and neither at
|
|
// the call site of INSTANTIATE_TEST_SUITE_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_SUITE_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_SUITE_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_SUITE_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_SUITE_P(Sequence1, MultipleInstantiationTest, Values(1, 2));
|
|
INSTANTIATE_TEST_SUITE_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(InstantiationInMultipleTranslationUnitsTest, IsMultipleOf42) {
|
|
EXPECT_EQ(0, GetParam() % 42);
|
|
}
|
|
INSTANTIATE_TEST_SUITE_P(Sequence1, InstantiationInMultipleTranslationUnitsTest,
|
|
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 TearDownTestSuite() {
|
|
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_SUITE_P(FourElemSequence, SeparateInstanceTest, Range(1, 4));
|
|
|
|
// Tests that all instantiations of a test have named appropriately. Test
|
|
// defined with TEST_P(TestSuiteName, TestName) and instantiated with
|
|
// INSTANTIATE_TEST_SUITE_P(SequenceName, TestSuiteName, generator) must be
|
|
// named SequenceName/TestSuiteName.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_suite_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_SUITE_P(ZeroToFiveSequence, NamingTest, Range(0, 5));
|
|
|
|
// Tests that macros in test names are expanded correctly.
|
|
class MacroNamingTest : public TestWithParam<int> {};
|
|
|
|
#define PREFIX_WITH_FOO(test_name) Foo##test_name
|
|
#define PREFIX_WITH_MACRO(test_name) Macro##test_name
|
|
|
|
TEST_P(PREFIX_WITH_MACRO(NamingTest), PREFIX_WITH_FOO(SomeTestName)) {
|
|
const ::testing::TestInfo* const test_info =
|
|
::testing::UnitTest::GetInstance()->current_test_info();
|
|
|
|
EXPECT_STREQ("FortyTwo/MacroNamingTest", test_info->test_suite_name());
|
|
EXPECT_STREQ("FooSomeTestName", test_info->name());
|
|
}
|
|
|
|
INSTANTIATE_TEST_SUITE_P(FortyTwo, MacroNamingTest, Values(42));
|
|
|
|
// Tests the same thing for non-parametrized tests.
|
|
class MacroNamingTestNonParametrized : public ::testing::Test {};
|
|
|
|
TEST_F(PREFIX_WITH_MACRO(NamingTestNonParametrized),
|
|
PREFIX_WITH_FOO(SomeTestName)) {
|
|
const ::testing::TestInfo* const test_info =
|
|
::testing::UnitTest::GetInstance()->current_test_info();
|
|
|
|
EXPECT_STREQ("MacroNamingTestNonParametrized", test_info->test_suite_name());
|
|
EXPECT_STREQ("FooSomeTestName", test_info->name());
|
|
}
|
|
|
|
// 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>& inf) {
|
|
return inf.param;
|
|
}
|
|
};
|
|
|
|
INSTANTIATE_TEST_SUITE_P(CustomParamNameFunctor, CustomFunctorNamingTest,
|
|
Values(std::string("FunctorName")),
|
|
CustomParamNameFunctor());
|
|
|
|
INSTANTIATE_TEST_SUITE_P(AllAllowedCharacters, CustomFunctorNamingTest,
|
|
Values("abcdefghijklmnopqrstuvwxyz",
|
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZ", "01234567890_"),
|
|
CustomParamNameFunctor());
|
|
|
|
inline std::string CustomParamNameFunction(
|
|
const ::testing::TestParamInfo<std::string>& inf) {
|
|
return inf.param;
|
|
}
|
|
|
|
class CustomFunctionNamingTest : public TestWithParam<std::string> {};
|
|
TEST_P(CustomFunctionNamingTest, CustomTestNames) {}
|
|
|
|
INSTANTIATE_TEST_SUITE_P(CustomParamNameFunction, CustomFunctionNamingTest,
|
|
Values(std::string("FunctionName")),
|
|
CustomParamNameFunction);
|
|
|
|
INSTANTIATE_TEST_SUITE_P(CustomParamNameFunctionP, CustomFunctionNamingTest,
|
|
Values(std::string("FunctionNameP")),
|
|
&CustomParamNameFunction);
|
|
|
|
// Test custom naming with a lambda
|
|
|
|
class CustomLambdaNamingTest : public TestWithParam<std::string> {};
|
|
TEST_P(CustomLambdaNamingTest, CustomTestNames) {}
|
|
|
|
INSTANTIATE_TEST_SUITE_P(CustomParamNameLambda, CustomLambdaNamingTest,
|
|
Values(std::string("LambdaName")),
|
|
[](const ::testing::TestParamInfo<std::string>& inf) {
|
|
return inf.param;
|
|
});
|
|
|
|
TEST(CustomNamingTest, CheckNameRegistry) {
|
|
::testing::UnitTest* unit_test = ::testing::UnitTest::GetInstance();
|
|
std::set<std::string> test_names;
|
|
for (int suite_num = 0; suite_num < unit_test->total_test_suite_count();
|
|
++suite_num) {
|
|
const ::testing::TestSuite* test_suite = unit_test->GetTestSuite(suite_num);
|
|
for (int test_num = 0; test_num < test_suite->total_test_count();
|
|
++test_num) {
|
|
const ::testing::TestInfo* test_info = test_suite->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"));
|
|
EXPECT_EQ(1u, test_names.count("CustomTestNames/FunctionNameP"));
|
|
EXPECT_EQ(1u, test_names.count("CustomTestNames/LambdaName"));
|
|
}
|
|
|
|
// 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_SUITE_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_SUITE_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_SUITE_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) {}
|
|
// -Wunused-private-field: dummy accessor for `value_`.
|
|
const int& dummy_value() const { return 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_SUITE_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_SUITE_P(RangeZeroToFive, ParameterizedDerivedTest,
|
|
Range(0, 5));
|
|
|
|
// Tests param generator working with Enums
|
|
enum MyEnums {
|
|
ENUM1 = 1,
|
|
ENUM2 = 3,
|
|
ENUM3 = 8,
|
|
};
|
|
|
|
class MyEnumTest : public testing::TestWithParam<MyEnums> {};
|
|
|
|
TEST_P(MyEnumTest, ChecksParamMoreThanZero) { EXPECT_GE(10, GetParam()); }
|
|
INSTANTIATE_TEST_SUITE_P(MyEnumTests, MyEnumTest,
|
|
::testing::Values(ENUM1, ENUM2, 0));
|
|
|
|
int main(int argc, char **argv) {
|
|
// Used in TestGenerationTest test suite.
|
|
AddGlobalTestEnvironment(TestGenerationTest::Environment::Instance());
|
|
// Used in GeneratorEvaluationTest test suite. Tests that the updated value
|
|
// will be picked up for instantiating tests in GeneratorEvaluationTest.
|
|
GeneratorEvaluationTest::set_param_value(1);
|
|
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
|
|
// Used in GeneratorEvaluationTest test suite. Tests that value updated
|
|
// here will NOT be used for instantiating tests in
|
|
// GeneratorEvaluationTest.
|
|
GeneratorEvaluationTest::set_param_value(2);
|
|
|
|
return RUN_ALL_TESTS();
|
|
}
|