ref: 7987f35391c33c87aae1eb1e1148c41c91303ace
dir: /third_party/googletest/src/include/gtest/gtest-param-test.h.pump/
$$ -*- mode: c++; -*-
$var n = 50 $$ Maximum length of Values arguments we want to support.
$var maxtuple = 10 $$ Maximum number of Combine arguments we want to support.
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Authors: vladl@google.com (Vlad Losev)
//
// Macros and functions for implementing parameterized tests
// in Google C++ Testing Framework (Google Test)
//
// This file is generated by a SCRIPT. DO NOT EDIT BY HAND!
//
#ifndef GTEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
#define GTEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_
// Value-parameterized tests allow you to test your code with different
// parameters without writing multiple copies of the same test.
//
// Here is how you use value-parameterized tests:
#if 0
// To write value-parameterized tests, first you should define a fixture
// class. It is usually derived from testing::TestWithParam<T> (see below for
// another inheritance scheme that's sometimes useful in more complicated
// class hierarchies), where the type of your parameter values.
// TestWithParam<T> is itself derived from testing::Test. T can be any
// copyable type. If it's a raw pointer, you are responsible for managing the
// lifespan of the pointed values.
class FooTest : public ::testing::TestWithParam<const char*> {
// You can implement all the usual class fixture members here.
};
// Then, use the TEST_P macro to define as many parameterized tests
// for this fixture as you want. The _P suffix is for "parameterized"
// or "pattern", whichever you prefer to think.
TEST_P(FooTest, DoesBlah) {
// Inside a test, access the test parameter with the GetParam() method
// of the TestWithParam<T> class:
EXPECT_TRUE(foo.Blah(GetParam()));
...
}
TEST_P(FooTest, HasBlahBlah) {
...
}
// Finally, you can use INSTANTIATE_TEST_CASE_P to instantiate the test
// case with any set of parameters you want. Google Test defines a number
// of functions for generating test parameters. They return what we call
// (surprise!) parameter generators. Here is a summary of them, which
// are all in the testing namespace:
//
//
// Range(begin, end [, step]) - Yields values {begin, begin+step,
// begin+step+step, ...}. The values do not
// include end. step defaults to 1.
// Values(v1, v2, ..., vN) - Yields values {v1, v2, ..., vN}.
// ValuesIn(container) - Yields values from a C-style array, an STL
// ValuesIn(begin,end) container, or an iterator range [begin, end).
// Bool() - Yields sequence {false, true}.
// Combine(g1, g2, ..., gN) - Yields all combinations (the Cartesian product
// for the math savvy) of the values generated
// by the N generators.
//
// For more details, see comments at the definitions of these functions below
// in this file.
//
// The following statement will instantiate tests from the FooTest test case
// each with parameter values "meeny", "miny", and "moe".
INSTANTIATE_TEST_CASE_P(InstantiationName,
FooTest,
Values("meeny", "miny", "moe"));
// To distinguish different instances of the pattern, (yes, you
// can instantiate it more then once) the first argument to the
// INSTANTIATE_TEST_CASE_P macro is a prefix that will be added to the
// actual test case name. Remember to pick unique prefixes for different
// instantiations. The tests from the instantiation above will have
// these names:
//
// * InstantiationName/FooTest.DoesBlah/0 for "meeny"
// * InstantiationName/FooTest.DoesBlah/1 for "miny"
// * InstantiationName/FooTest.DoesBlah/2 for "moe"
// * InstantiationName/FooTest.HasBlahBlah/0 for "meeny"
// * InstantiationName/FooTest.HasBlahBlah/1 for "miny"
// * InstantiationName/FooTest.HasBlahBlah/2 for "moe"
//
// You can use these names in --gtest_filter.
//
// This statement will instantiate all tests from FooTest again, each
// with parameter values "cat" and "dog":
const char* pets[] = {"cat", "dog"};
INSTANTIATE_TEST_CASE_P(AnotherInstantiationName, FooTest, ValuesIn(pets));
// The tests from the instantiation above will have these names:
//
// * AnotherInstantiationName/FooTest.DoesBlah/0 for "cat"
// * AnotherInstantiationName/FooTest.DoesBlah/1 for "dog"
// * AnotherInstantiationName/FooTest.HasBlahBlah/0 for "cat"
// * AnotherInstantiationName/FooTest.HasBlahBlah/1 for "dog"
//
// Please note that INSTANTIATE_TEST_CASE_P will instantiate all tests
// in the given test case, whether their definitions come before or
// AFTER the INSTANTIATE_TEST_CASE_P statement.
//
// Please also note that generator expressions (including parameters to the
// generators) are evaluated in InitGoogleTest(), after main() has started.
// This allows the user on one hand, to adjust generator parameters in order
// to dynamically determine a set of tests to run and on the other hand,
// give the user a chance to inspect the generated tests with Google Test
// reflection API before RUN_ALL_TESTS() is executed.
//
// You can see samples/sample7_unittest.cc and samples/sample8_unittest.cc
// for more examples.
//
// In the future, we plan to publish the API for defining new parameter
// generators. But for now this interface remains part of the internal
// implementation and is subject to change.
//
//
// A parameterized test fixture must be derived from testing::Test and from
// testing::WithParamInterface<T>, where T is the type of the parameter
// values. Inheriting from TestWithParam<T> satisfies that requirement because
// TestWithParam<T> inherits from both Test and WithParamInterface. In more
// complicated hierarchies, however, it is occasionally useful to inherit
// separately from Test and WithParamInterface. For example:
class BaseTest : public ::testing::Test {
// You can inherit all the usual members for a non-parameterized test
// fixture here.
};
class DerivedTest : public BaseTest, public ::testing::WithParamInterface<int> {
// The usual test fixture members go here too.
};
TEST_F(BaseTest, HasFoo) {
// This is an ordinary non-parameterized test.
}
TEST_P(DerivedTest, DoesBlah) {
// GetParam works just the same here as if you inherit from TestWithParam.
EXPECT_TRUE(foo.Blah(GetParam()));
}
#endif // 0
#include "gtest/internal/gtest-port.h"
#if !GTEST_OS_SYMBIAN
# include <utility>
#endif
// scripts/fuse_gtest.py depends on gtest's own header being #included
// *unconditionally*. Therefore these #includes cannot be moved
// inside #if GTEST_HAS_PARAM_TEST.
#include "gtest/internal/gtest-internal.h"
#include "gtest/internal/gtest-param-util.h"
#include "gtest/internal/gtest-param-util-generated.h"
#if GTEST_HAS_PARAM_TEST
namespace testing {
// Functions producing parameter generators.
//
// Google Test uses these generators to produce parameters for value-
// parameterized tests. When a parameterized test case is instantiated
// with a particular generator, Google Test creates and runs tests
// for each element in the sequence produced by the generator.
//
// In the following sample, tests from test case FooTest are instantiated
// each three times with parameter values 3, 5, and 8:
//
// class FooTest : public TestWithParam<int> { ... };
//
// TEST_P(FooTest, TestThis) {
// }
// TEST_P(FooTest, TestThat) {
// }
// INSTANTIATE_TEST_CASE_P(TestSequence, FooTest, Values(3, 5, 8));
//
// Range() returns generators providing sequences of values in a range.
//
// Synopsis:
// Range(start, end)
// - returns a generator producing a sequence of values {start, start+1,
// start+2, ..., }.
// Range(start, end, step)
// - returns a generator producing a sequence of values {start, start+step,
// start+step+step, ..., }.
// Notes:
// * The generated sequences never include end. For example, Range(1, 5)
// returns a generator producing a sequence {1, 2, 3, 4}. Range(1, 9, 2)
// returns a generator producing {1, 3, 5, 7}.
// * start and end must have the same type. That type may be any integral or
// floating-point type or a user defined type satisfying these conditions:
// * It must be assignable (have operator=() defined).
// * It must have operator+() (operator+(int-compatible type) for
// two-operand version).
// * It must have operator<() defined.
// Elements in the resulting sequences will also have that type.
// * Condition start < end must be satisfied in order for resulting sequences
// to contain any elements.
//
template <typename T, typename IncrementT>
internal::ParamGenerator<T> Range(T start, T end, IncrementT step) {
return internal::ParamGenerator<T>(
new internal::RangeGenerator<T, IncrementT>(start, end, step));
}
template <typename T>
internal::ParamGenerator<T> Range(T start, T end) {
return Range(start, end, 1);
}
// ValuesIn() function allows generation of tests with parameters coming from
// a container.
//
// Synopsis:
// ValuesIn(const T (&array)[N])
// - returns a generator producing sequences with elements from
// a C-style array.
// ValuesIn(const Container& container)
// - returns a generator producing sequences with elements from
// an STL-style container.
// ValuesIn(Iterator begin, Iterator end)
// - returns a generator producing sequences with elements from
// a range [begin, end) defined by a pair of STL-style iterators. These
// iterators can also be plain C pointers.
//
// Please note that ValuesIn copies the values from the containers
// passed in and keeps them to generate tests in RUN_ALL_TESTS().
//
// Examples:
//
// This instantiates tests from test case StringTest
// each with C-string values of "foo", "bar", and "baz":
//
// const char* strings[] = {"foo", "bar", "baz"};
// INSTANTIATE_TEST_CASE_P(StringSequence, SrtingTest, ValuesIn(strings));
//
// This instantiates tests from test case StlStringTest
// each with STL strings with values "a" and "b":
//
// ::std::vector< ::std::string> GetParameterStrings() {
// ::std::vector< ::std::string> v;
// v.push_back("a");
// v.push_back("b");
// return v;
// }
//
// INSTANTIATE_TEST_CASE_P(CharSequence,
// StlStringTest,
// ValuesIn(GetParameterStrings()));
//
//
// This will also instantiate tests from CharTest
// each with parameter values 'a' and 'b':
//
// ::std::list<char> GetParameterChars() {
// ::std::list<char> list;
// list.push_back('a');
// list.push_back('b');
// return list;
// }
// ::std::list<char> l = GetParameterChars();
// INSTANTIATE_TEST_CASE_P(CharSequence2,
// CharTest,
// ValuesIn(l.begin(), l.end()));
//
template <typename ForwardIterator>
internal::ParamGenerator<
typename ::testing::internal::IteratorTraits<ForwardIterator>::value_type>
ValuesIn(ForwardIterator begin, ForwardIterator end) {
typedef typename ::testing::internal::IteratorTraits<ForwardIterator>
::value_type ParamType;
return internal::ParamGenerator<ParamType>(
new internal::ValuesInIteratorRangeGenerator<ParamType>(begin, end));
}
template <typename T, size_t N>
internal::ParamGenerator<T> ValuesIn(const T (&array)[N]) {
return ValuesIn(array, array + N);
}
template <class Container>
internal::ParamGenerator<typename Container::value_type> ValuesIn(
const Container& container) {
return ValuesIn(container.begin(), container.end());
}
// Values() allows generating tests from explicitly specified list of
// parameters.
//
// Synopsis:
// Values(T v1, T v2, ..., T vN)
// - returns a generator producing sequences with elements v1, v2, ..., vN.
//
// For example, this instantiates tests from test case BarTest each
// with values "one", "two", and "three":
//
// INSTANTIATE_TEST_CASE_P(NumSequence, BarTest, Values("one", "two", "three"));
//
// This instantiates tests from test case BazTest each with values 1, 2, 3.5.
// The exact type of values will depend on the type of parameter in BazTest.
//
// INSTANTIATE_TEST_CASE_P(FloatingNumbers, BazTest, Values(1, 2, 3.5));
//
// Currently, Values() supports from 1 to $n parameters.
//
$range i 1..n
$for i [[
$range j 1..i
template <$for j, [[typename T$j]]>
internal::ValueArray$i<$for j, [[T$j]]> Values($for j, [[T$j v$j]]) {
return internal::ValueArray$i<$for j, [[T$j]]>($for j, [[v$j]]);
}
]]
// Bool() allows generating tests with parameters in a set of (false, true).
//
// Synopsis:
// Bool()
// - returns a generator producing sequences with elements {false, true}.
//
// It is useful when testing code that depends on Boolean flags. Combinations
// of multiple flags can be tested when several Bool()'s are combined using
// Combine() function.
//
// In the following example all tests in the test case FlagDependentTest
// will be instantiated twice with parameters false and true.
//
// class FlagDependentTest : public testing::TestWithParam<bool> {
// virtual void SetUp() {
// external_flag = GetParam();
// }
// }
// INSTANTIATE_TEST_CASE_P(BoolSequence, FlagDependentTest, Bool());
//
inline internal::ParamGenerator<bool> Bool() {
return Values(false, true);
}
# if GTEST_HAS_COMBINE
// Combine() allows the user to combine two or more sequences to produce
// values of a Cartesian product of those sequences' elements.
//
// Synopsis:
// Combine(gen1, gen2, ..., genN)
// - returns a generator producing sequences with elements coming from
// the Cartesian product of elements from the sequences generated by
// gen1, gen2, ..., genN. The sequence elements will have a type of
// tuple<T1, T2, ..., TN> where T1, T2, ..., TN are the types
// of elements from sequences produces by gen1, gen2, ..., genN.
//
// Combine can have up to $maxtuple arguments. This number is currently limited
// by the maximum number of elements in the tuple implementation used by Google
// Test.
//
// Example:
//
// This will instantiate tests in test case AnimalTest each one with
// the parameter values tuple("cat", BLACK), tuple("cat", WHITE),
// tuple("dog", BLACK), and tuple("dog", WHITE):
//
// enum Color { BLACK, GRAY, WHITE };
// class AnimalTest
// : public testing::TestWithParam<tuple<const char*, Color> > {...};
//
// TEST_P(AnimalTest, AnimalLooksNice) {...}
//
// INSTANTIATE_TEST_CASE_P(AnimalVariations, AnimalTest,
// Combine(Values("cat", "dog"),
// Values(BLACK, WHITE)));
//
// This will instantiate tests in FlagDependentTest with all variations of two
// Boolean flags:
//
// class FlagDependentTest
// : public testing::TestWithParam<tuple<bool, bool> > {
// virtual void SetUp() {
// // Assigns external_flag_1 and external_flag_2 values from the tuple.
// tie(external_flag_1, external_flag_2) = GetParam();
// }
// };
//
// TEST_P(FlagDependentTest, TestFeature1) {
// // Test your code using external_flag_1 and external_flag_2 here.
// }
// INSTANTIATE_TEST_CASE_P(TwoBoolSequence, FlagDependentTest,
// Combine(Bool(), Bool()));
//
$range i 2..maxtuple
$for i [[
$range j 1..i
template <$for j, [[typename Generator$j]]>
internal::CartesianProductHolder$i<$for j, [[Generator$j]]> Combine(
$for j, [[const Generator$j& g$j]]) {
return internal::CartesianProductHolder$i<$for j, [[Generator$j]]>(
$for j, [[g$j]]);
}
]]
# endif // GTEST_HAS_COMBINE
# define TEST_P(test_case_name, test_name) \
class GTEST_TEST_CLASS_NAME_(test_case_name, test_name) \
: public test_case_name { \
public: \
GTEST_TEST_CLASS_NAME_(test_case_name, test_name)() {} \
virtual void TestBody(); \
private: \
static int AddToRegistry() { \
::testing::UnitTest::GetInstance()->parameterized_test_registry(). \
GetTestCasePatternHolder<test_case_name>(\
#test_case_name, \
::testing::internal::CodeLocation(\
__FILE__, __LINE__))->AddTestPattern(\
#test_case_name, \
#test_name, \
new ::testing::internal::TestMetaFactory< \
GTEST_TEST_CLASS_NAME_(\
test_case_name, test_name)>()); \
return 0; \
} \
static int gtest_registering_dummy_ GTEST_ATTRIBUTE_UNUSED_; \
GTEST_DISALLOW_COPY_AND_ASSIGN_(\
GTEST_TEST_CLASS_NAME_(test_case_name, test_name)); \
}; \
int GTEST_TEST_CLASS_NAME_(test_case_name, \
test_name)::gtest_registering_dummy_ = \
GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::AddToRegistry(); \
void GTEST_TEST_CLASS_NAME_(test_case_name, test_name)::TestBody()
// The optional last argument to INSTANTIATE_TEST_CASE_P allows the user
// to specify a function or functor that generates custom test name suffixes
// based on the test parameters. The function should accept one argument of
// type testing::TestParamInfo<class ParamType>, and return std::string.
//
// testing::PrintToStringParamName is a builtin test suffix generator that
// returns the value of testing::PrintToString(GetParam()).
//
// Note: test names must be non-empty, unique, and may only contain ASCII
// alphanumeric characters or underscore. Because PrintToString adds quotes
// to std::string and C strings, it won't work for these types.
# define INSTANTIATE_TEST_CASE_P(prefix, test_case_name, generator, ...) \
::testing::internal::ParamGenerator<test_case_name::ParamType> \
gtest_##prefix##test_case_name##_EvalGenerator_() { return generator; } \
::std::string gtest_##prefix##test_case_name##_EvalGenerateName_( \
const ::testing::TestParamInfo<test_case_name::ParamType>& info) { \
return ::testing::internal::GetParamNameGen<test_case_name::ParamType> \
(__VA_ARGS__)(info); \
} \
int gtest_##prefix##test_case_name##_dummy_ GTEST_ATTRIBUTE_UNUSED_ = \
::testing::UnitTest::GetInstance()->parameterized_test_registry(). \
GetTestCasePatternHolder<test_case_name>(\
#test_case_name, \
::testing::internal::CodeLocation(\
__FILE__, __LINE__))->AddTestCaseInstantiation(\
#prefix, \
>est_##prefix##test_case_name##_EvalGenerator_, \
>est_##prefix##test_case_name##_EvalGenerateName_, \
__FILE__, __LINE__)
} // namespace testing
#endif // GTEST_HAS_PARAM_TEST
#endif // GTEST_INCLUDE_GTEST_GTEST_PARAM_TEST_H_