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Adds new files for type-parameterized tests, which I forgot to commit in the previous revision.

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pull/496/merge
shiqian 16 years ago
parent a2b1a8556e
commit 29d8235540
8 changed files with 4706 additions and 0 deletions
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  1. 253
      include/gtest/gtest-typed-test.h
  2. 3313
      include/gtest/internal/gtest-type-util.h
  3. 281
      include/gtest/internal/gtest-type-util.h.pump
  4. 301
      samples/sample6_unittest.cc
  5. 97
      src/gtest-typed-test.cc
  6. 45
      test/gtest-typed-test2_test.cc
  7. 350
      test/gtest-typed-test_test.cc
  8. 66
      test/gtest-typed-test_test.h

253
include/gtest/gtest-typed-test.h
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// 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: wan@google.com (Zhanyong Wan)
#ifndef GTEST_INCLUDE_GTEST_GTEST_TYPED_TEST_H_
#define GTEST_INCLUDE_GTEST_GTEST_TYPED_TEST_H_
// This header implements typed tests and type-parameterized tests.
// Typed (aka type-driven) tests repeat the same test for types in a
// list. You must know which types you want to test with when writing
// typed tests. Here's how you do it:
#if 0
// First, define a fixture class template. It should be parameterized
// by a type. Remember to derive it from testing::Test.
template <typename T>
class FooTest : public testing::Test {
public:
...
typedef std::list<T> List;
static T shared_;
T value_;
};
// Next, associate a list of types with the test case, which will be
// repeated for each type in the list. The typedef is necessary for
// the macro to parse correctly.
typedef testing::Types<char, int, unsigned int> MyTypes;
TYPED_TEST_CASE(FooTest, MyTypes);
// If the type list contains only one type, you can write that type
// directly without Types<...>:
// TYPED_TEST_CASE(FooTest, int);
// Then, use TYPED_TEST() instead of TEST_F() to define as many typed
// tests for this test case as you want.
TYPED_TEST(FooTest, DoesBlah) {
// Inside a test, refer to TypeParam to get the type parameter.
// Since we are inside a derived class template, C++ requires use to
// visit the members of FooTest via 'this'.
TypeParam n = this->value_;
// To visit static members of the fixture, add the TestFixture::
// prefix.
n += TestFixture::shared_;
// To refer to typedefs in the fixture, add the "typename
// TestFixture::" prefix.
typename TestFixture::List values;
values.push_back(n);
...
}
TYPED_TEST(FooTest, HasPropertyA) { ... }
#endif // 0
// Type-parameterized tests are abstract test patterns parameterized
// by a type. Compared with typed tests, type-parameterized tests
// allow you to define the test pattern without knowing what the type
// parameters are. The defined pattern can be instantiated with
// different types any number of times, in any number of translation
// units.
//
// If you are designing an interface or concept, you can define a
// suite of type-parameterized tests to verify properties that any
// valid implementation of the interface/concept should have. Then,
// each implementation can easily instantiate the test suite to verify
// that it conforms to the requirements, without having to write
// similar tests repeatedly. Here's an example:
#if 0
// First, define a fixture class template. It should be parameterized
// by a type. Remember to derive it from testing::Test.
template <typename T>
class FooTest : public testing::Test {
...
};
// Next, declare that you will define a type-parameterized test case
// (the _P suffix is for "parameterized" or "pattern", whichever you
// prefer):
TYPED_TEST_CASE_P(FooTest);
// Then, use TYPED_TEST_P() to define as many type-parameterized tests
// for this type-parameterized test case as you want.
TYPED_TEST_P(FooTest, DoesBlah) {
// Inside a test, refer to TypeParam to get the type parameter.
TypeParam n = 0;
...
}
TYPED_TEST_P(FooTest, HasPropertyA) { ... }
// Now the tricky part: you need to register all test patterns before
// you can instantiate them. The first argument of the macro is the
// test case name; the rest are the names of the tests in this test
// case.
REGISTER_TYPED_TEST_CASE_P(FooTest,
DoesBlah, HasPropertyA);
// Finally, you are free to instantiate the pattern with the types you
// want. If you put the above code in a header file, you can #include
// it in multiple C++ source files and instantiate it multiple times.
//
// To distinguish different instances of the pattern, the first
// argument to the INSTANTIATE_* macro is a prefix that will be added
// to the actual test case name. Remember to pick unique prefixes for
// different instances.
typedef testing::Types<char, int, unsigned int> MyTypes;
INSTANTIATE_TYPED_TEST_CASE_P(My, FooTest, MyTypes);
// If the type list contains only one type, you can write that type
// directly without Types<...>:
// INSTANTIATE_TYPED_TEST_CASE_P(My, FooTest, int);
#endif // 0
#include <gtest/internal/gtest-port.h>
#include <gtest/internal/gtest-type-util.h>
// Implements typed tests.
#ifdef GTEST_HAS_TYPED_TEST
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Expands to the name of the typedef for the type parameters of the
// given test case.
#define GTEST_TYPE_PARAMS_(TestCaseName) gtest_type_params_##TestCaseName##_
#define TYPED_TEST_CASE(CaseName, Types) \
typedef ::testing::internal::TypeList<Types>::type \
GTEST_TYPE_PARAMS_(CaseName)
#define TYPED_TEST(CaseName, TestName) \
template <typename gtest_TypeParam_> \
class GTEST_TEST_CLASS_NAME_(CaseName, TestName) \
: public CaseName<gtest_TypeParam_> { \
private: \
typedef CaseName<gtest_TypeParam_> TestFixture; \
typedef gtest_TypeParam_ TypeParam; \
virtual void TestBody(); \
}; \
bool gtest_##CaseName##_##TestName##_registered_ = \
::testing::internal::TypeParameterizedTest< \
CaseName, \
::testing::internal::TemplateSel< \
GTEST_TEST_CLASS_NAME_(CaseName, TestName)>, \
GTEST_TYPE_PARAMS_(CaseName)>::Register(\
"", #CaseName, #TestName, 0); \
template <typename gtest_TypeParam_> \
void GTEST_TEST_CLASS_NAME_(CaseName, TestName)<gtest_TypeParam_>::TestBody()
#endif // GTEST_HAS_TYPED_TEST
// Implements type-parameterized tests.
#ifdef GTEST_HAS_TYPED_TEST_P
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Expands to the namespace name that the type-parameterized tests for
// the given type-parameterized test case are defined in. The exact
// name of the namespace is subject to change without notice.
#define GTEST_CASE_NAMESPACE_(TestCaseName) \
gtest_case_##TestCaseName##_
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE.
//
// Expands to the name of the variable used to remember the names of
// the defined tests in the given test case.
#define GTEST_TYPED_TEST_CASE_P_STATE_(TestCaseName) \
gtest_typed_test_case_p_state_##TestCaseName##_
// INTERNAL IMPLEMENTATION - DO NOT USE IN USER CODE DIRECTLY.
//
// Expands to the name of the variable used to remember the names of
// the registered tests in the given test case.
#define GTEST_REGISTERED_TEST_NAMES_(TestCaseName) \
gtest_registered_test_names_##TestCaseName##_
// The variables defined in the type-parameterized test macros are
// static as typically these macros are used in a .h file that can be
// #included in multiple translation units linked together.
#define TYPED_TEST_CASE_P(CaseName) \
static ::testing::internal::TypedTestCasePState \
GTEST_TYPED_TEST_CASE_P_STATE_(CaseName)
#define TYPED_TEST_P(CaseName, TestName) \
namespace GTEST_CASE_NAMESPACE_(CaseName) { \
template <typename gtest_TypeParam_> \
class TestName : public CaseName<gtest_TypeParam_> { \
private: \
typedef CaseName<gtest_TypeParam_> TestFixture; \
typedef gtest_TypeParam_ TypeParam; \
virtual void TestBody(); \
}; \
static bool gtest_##TestName##_defined_ = \
GTEST_TYPED_TEST_CASE_P_STATE_(CaseName).AddTestName(\
__FILE__, __LINE__, #CaseName, #TestName); \
} \
template <typename gtest_TypeParam_> \
void GTEST_CASE_NAMESPACE_(CaseName)::TestName<gtest_TypeParam_>::TestBody()
#define REGISTER_TYPED_TEST_CASE_P(CaseName, ...) \
namespace GTEST_CASE_NAMESPACE_(CaseName) { \
typedef ::testing::internal::Templates<__VA_ARGS__>::type gtest_AllTests_; \
} \
static const char* const GTEST_REGISTERED_TEST_NAMES_(CaseName) = \
GTEST_TYPED_TEST_CASE_P_STATE_(CaseName).VerifyRegisteredTestNames(\
__FILE__, __LINE__, #__VA_ARGS__)
#define INSTANTIATE_TYPED_TEST_CASE_P(Prefix, CaseName, Types) \
bool gtest_##Prefix##_##CaseName = \
::testing::internal::TypeParameterizedTestCase<CaseName, \
GTEST_CASE_NAMESPACE_(CaseName)::gtest_AllTests_, \
::testing::internal::TypeList<Types>::type>::Register(\
#Prefix, #CaseName, GTEST_REGISTERED_TEST_NAMES_(CaseName))
#endif // GTEST_HAS_TYPED_TEST_P
#endif // GTEST_INCLUDE_GTEST_GTEST_TYPED_TEST_H_

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include/gtest/internal/gtest-type-util.h
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include/gtest/internal/gtest-type-util.h.pump
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$$ -*- mode: c++; -*-
$var n = 50 $$ Maximum length of type lists 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.
//
// Author: wan@google.com (Zhanyong Wan)
// Type utilities needed for implementing typed and type-parameterized
// tests. This file is generated by a SCRIPT. DO NOT EDIT BY HAND!
//
// Currently we support at most $n types in a list, and at most $n
// type-parameterized tests in one type-parameterized test case.
// Please contact googletestframework@googlegroups.com if you need
// more.
#ifndef GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_
#define GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_
#include <gtest/internal/gtest-port.h>
#include <gtest/internal/gtest-string.h>
#if defined(GTEST_HAS_TYPED_TEST) || defined(GTEST_HAS_TYPED_TEST_P)
#ifdef __GNUC__
#include <cxxabi.h>
#endif // __GNUC__
#include <typeinfo>
namespace testing {
namespace internal {
// AssertyTypeEq<T1, T2>::type is defined iff T1 and T2 are the same
// type. This can be used as a compile-time assertion to ensure that
// two types are equal.
template <typename T1, typename T2>
struct AssertTypeEq;
template <typename T>
struct AssertTypeEq<T, T> {
typedef bool type;
};
// GetTypeName<T>() returns a human-readable name of type T.
template <typename T>
String GetTypeName() {
const char* const name = typeid(T).name();
#ifdef __GNUC__
int status = 0;
// gcc's implementation of typeid(T).name() mangles the type name,
// so we have to demangle it.
char* const readable_name = abi::__cxa_demangle(name, 0, 0, &status);
const String name_str(status == 0 ? readable_name : name);
free(readable_name);
return name_str;
#else
return name;
#endif // __GNUC__
}
// A unique type used as the default value for the arguments of class
// template Types. This allows us to simulate variadic templates
// (e.g. Types<int>, Type<int, double>, and etc), which C++ doesn't
// support directly.
struct None {};
// The following family of struct and struct templates are used to
// represent type lists. In particular, TypesN<T1, T2, ..., TN>
// represents a type list with N types (T1, T2, ..., and TN) in it.
// Except for Types0, every struct in the family has two member types:
// Head for the first type in the list, and Tail for the rest of the
// list.
// The empty type list.
struct Types0 {};
// Type lists of length 1, 2, 3, and so on.
template <typename T1>
struct Types1 {
typedef T1 Head;
typedef Types0 Tail;
};
$range i 2..n
$for i [[
$range j 1..i
$range k 2..i
template <$for j, [[typename T$j]]>
struct Types$i {
typedef T1 Head;
typedef Types$(i-1)<$for k, [[T$k]]> Tail;
};
]]
} // namespace internal
// We don't want to require the users to write TypesN<...> directly,
// as that would require them to count the length. Types<...> is much
// easier to write, but generates horrible messages when there is a
// compiler error, as gcc insists on printing out each template
// argument, even if it has the default value (this means Types<int>
// will appear as Types<int, None, None, ..., None> in the compiler
// errors).
//
// Our solution is to combine the best part of the two approaches: a
// user would write Types<T1, ..., TN>, and Google Test will translate
// that to TypesN<T1, ..., TN> internally to make error messages
// readable. The translation is done by the 'type' member of the
// Types template.
$range i 1..n
template <$for i, [[typename T$i = internal::None]]>
struct Types {
typedef internal::Types$n<$for i, [[T$i]]> type;
};
template <>
struct Types<$for i, [[internal::None]]> {
typedef internal::Types0 type;
};
$range i 1..n-1
$for i [[
$range j 1..i
$range k i+1..n
template <$for j, [[typename T$j]]>
struct Types<$for j, [[T$j]]$for k[[, internal::None]]> {
typedef internal::Types$i<$for j, [[T$j]]> type;
};
]]
namespace internal {
#define GTEST_TEMPLATE_ template <typename T> class
// The template "selector" struct TemplateSel<Tmpl> is used to
// represent Tmpl, which must be a class template with one type
// parameter, as a type. TemplateSel<Tmpl>::Bind<T>::type is defined
// as the type Tmpl<T>. This allows us to actually instantiate the
// template "selected" by TemplateSel<Tmpl>.
//
// This trick is necessary for simulating typedef for class templates,
// which C++ doesn't support directly.
template <GTEST_TEMPLATE_ Tmpl>
struct TemplateSel {
template <typename T>
struct Bind {
typedef Tmpl<T> type;
};
};
#define GTEST_BIND_(TmplSel, T) \
TmplSel::template Bind<T>::type
// A unique struct template used as the default value for the
// arguments of class template Templates. This allows us to simulate
// variadic templates (e.g. Templates<int>, Templates<int, double>,
// and etc), which C++ doesn't support directly.
template <typename T>
struct NoneT {};
// The following family of struct and struct templates are used to
// represent template lists. In particular, TemplatesN<T1, T2, ...,
// TN> represents a list of N templates (T1, T2, ..., and TN). Except
// for Templates0, every struct in the family has two member types:
// Head for the selector of the first template in the list, and Tail
// for the rest of the list.
// The empty template list.
struct Templates0 {};
// Template lists of length 1, 2, 3, and so on.
template <GTEST_TEMPLATE_ T1>
struct Templates1 {
typedef TemplateSel<T1> Head;
typedef Templates0 Tail;
};
$range i 2..n
$for i [[
$range j 1..i
$range k 2..i
template <$for j, [[GTEST_TEMPLATE_ T$j]]>
struct Templates$i {
typedef TemplateSel<T1> Head;
typedef Templates$(i-1)<$for k, [[T$k]]> Tail;
};
]]
// We don't want to require the users to write TemplatesN<...> directly,
// as that would require them to count the length. Templates<...> is much
// easier to write, but generates horrible messages when there is a
// compiler error, as gcc insists on printing out each template
// argument, even if it has the default value (this means Templates<list>
// will appear as Templates<list, NoneT, NoneT, ..., NoneT> in the compiler
// errors).
//
// Our solution is to combine the best part of the two approaches: a
// user would write Templates<T1, ..., TN>, and Google Test will translate
// that to TemplatesN<T1, ..., TN> internally to make error messages
// readable. The translation is done by the 'type' member of the
// Templates template.
$range i 1..n
template <$for i, [[GTEST_TEMPLATE_ T$i = NoneT]]>
struct Templates {
typedef Templates$n<$for i, [[T$i]]> type;
};
template <>
struct Templates<$for i, [[NoneT]]> {
typedef Templates0 type;
};
$range i 1..n-1
$for i [[
$range j 1..i
$range k i+1..n
template <$for j, [[GTEST_TEMPLATE_ T$j]]>
struct Templates<$for j, [[T$j]]$for k[[, NoneT]]> {
typedef Templates$i<$for j, [[T$j]]> type;
};
]]
// The TypeList template makes it possible to use either a single type
// or a Types<...> list in TYPED_TEST_CASE() and
// INSTANTIATE_TYPED_TEST_CASE_P().
template <typename T>
struct TypeList { typedef Types1<T> type; };
$range i 1..n
template <$for i, [[typename T$i]]>
struct TypeList<Types<$for i, [[T$i]]> > {
typedef typename Types<$for i, [[T$i]]>::type type;
};
} // namespace internal
} // namespace testing
#endif // GTEST_HAS_TYPED_TEST || GTEST_HAS_TYPED_TEST_P
#endif // GTEST_INCLUDE_GTEST_INTERNAL_GTEST_TYPE_UTIL_H_

301
samples/sample6_unittest.cc
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// 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: wan@google.com (Zhanyong Wan)
// This sample shows how to test common properties of multiple
// implementations of the same interface (aka interface tests). We
// put the code to be tested and the tests in the same file for
// simplicity.
#include <vector>
#include <gtest/gtest.h>
// Section 1. the interface and its implementations.
// The prime table interface.
class PrimeTable {
public:
virtual ~PrimeTable() {}
// Returns true iff n is a prime number.
virtual bool IsPrime(int n) const = 0;
// Returns the smallest prime number greater than p; or returns -1
// if the next prime is beyond the capacity of the table.
virtual int GetNextPrime(int p) const = 0;
};
// Implementation #1 calculates the primes on-the-fly.
class OnTheFlyPrimeTable : public PrimeTable {
public:
virtual bool IsPrime(int n) const {
if (n <= 1) return false;
for (int i = 2; i*i <= n; i++) {
// n is divisible by an integer other than 1 and itself.
if ((n % i) == 0) return false;
}
return true;
}
virtual int GetNextPrime(int p) const {
for (int n = p + 1; n > 0; n++) {
if (IsPrime(n)) return n;
}
return -1;
}
};
// Implementation #2 pre-calculates the primes and stores the result
// in a vector.
class PreCalculatedPrimeTable : public PrimeTable {
public:
// 'max' specifies the maximum number the prime table holds.
explicit PreCalculatedPrimeTable(int max) : is_prime_(max + 1) {
CalculatePrimesUpTo(max);
}
virtual bool IsPrime(int n) const {
return 0 <= n && n < is_prime_.size() && is_prime_[n];
}
virtual int GetNextPrime(int p) const {
for (int n = p + 1; n < is_prime_.size(); n++) {
if (is_prime_[n]) return n;
}
return -1;
}
private:
void CalculatePrimesUpTo(int max) {
fill(is_prime_.begin(), is_prime_.end(), true);
is_prime_[0] = is_prime_[1] = false;
for (int i = 2; i <= max; i++) {
if (!is_prime_[i]) continue;
// Marks all multiples of i (except i itself) as non-prime.
for (int j = 2*i; j <= max; j += i) {
is_prime_[j] = false;
}
}
}
std::vector<bool> is_prime_;
};
// Sections 2. the tests.
// First, we define some factory functions for creating instances of
// the implementations. You may be able to skip this step if all your
// implementations can be constructed the same way.
template <class T>
PrimeTable* CreatePrimeTable();
template <>
PrimeTable* CreatePrimeTable<OnTheFlyPrimeTable>() {
return new OnTheFlyPrimeTable;
}
template <>
PrimeTable* CreatePrimeTable<PreCalculatedPrimeTable>() {
return new PreCalculatedPrimeTable(10000);
}
// Then we define a test fixture class template.
template <class T>
class PrimeTableTest : public testing::Test {
protected:
// The ctor calls the factory function to create a prime table
// implemented by T.
PrimeTableTest() : table_(CreatePrimeTable<T>()) {}
virtual ~PrimeTableTest() { delete table_; }
// Note that we test an implementation via the base interface
// instead of the actual implementation class. This is important
// for keeping the tests close to the real world scenario, where the
// implementation is invoked via the base interface. It avoids
// got-yas where the implementation class has a method that shadows
// a method with the same name (but slightly different argument
// types) in the base interface, for example.
PrimeTable* const table_;
};
using testing::Types;
#ifdef GTEST_HAS_TYPED_TEST
// Google Test offers two ways for reusing tests for different types.
// The first is called "typed tests". You should use it if you
// already know *all* the types you are gonna exercise when you write
// the tests.
// To write a typed test case, first use
//
// TYPED_TEST_CASE(TestCaseName, TypeList);
//
// to declare it and specify the type parameters. As with TEST_F,
// TestCaseName must match the test fixture name.
// The list of types we want to test.
typedef Types<OnTheFlyPrimeTable, PreCalculatedPrimeTable> Implementations;
TYPED_TEST_CASE(PrimeTableTest, Implementations);
// Then use TYPED_TEST(TestCaseName, TestName) to define a typed test,
// similar to TEST_F.
TYPED_TEST(PrimeTableTest, ReturnsFalseForNonPrimes) {
// Inside the test body, you can refer to the type parameter by
// TypeParam, and refer to the fixture class by TestFixture. We
// don't need them in this example.
// Since we are in the template world, C++ requires explicitly
// writing 'this->' when referring to members of the fixture class.
// This is something you have to learn to live with.
EXPECT_FALSE(this->table_->IsPrime(-5));
EXPECT_FALSE(this->table_->IsPrime(0));
EXPECT_FALSE(this->table_->IsPrime(1));
EXPECT_FALSE(this->table_->IsPrime(4));
EXPECT_FALSE(this->table_->IsPrime(6));
EXPECT_FALSE(this->table_->IsPrime(100));
}
TYPED_TEST(PrimeTableTest, ReturnsTrueForPrimes) {
EXPECT_TRUE(this->table_->IsPrime(2));
EXPECT_TRUE(this->table_->IsPrime(3));
EXPECT_TRUE(this->table_->IsPrime(5));
EXPECT_TRUE(this->table_->IsPrime(7));
EXPECT_TRUE(this->table_->IsPrime(11));
EXPECT_TRUE(this->table_->IsPrime(131));
}
TYPED_TEST(PrimeTableTest, CanGetNextPrime) {
EXPECT_EQ(2, this->table_->GetNextPrime(0));
EXPECT_EQ(3, this->table_->GetNextPrime(2));
EXPECT_EQ(5, this->table_->GetNextPrime(3));
EXPECT_EQ(7, this->table_->GetNextPrime(5));
EXPECT_EQ(11, this->table_->GetNextPrime(7));
EXPECT_EQ(131, this->table_->GetNextPrime(128));
}
// That's it! Google Test will repeat each TYPED_TEST for each type
// in the type list specified in TYPED_TEST_CASE. Sit back and be
// happy that you don't have to define them multiple times.
#endif // GTEST_HAS_TYPED_TEST
#ifdef GTEST_HAS_TYPED_TEST_P
// Sometimes, however, you don't yet know all the types that you want
// to test when you write the tests. For example, if you are the
// author of an interface and expect other people to implement it, you
// might want to write a set of tests to make sure each implementation
// conforms to some basic requirements, but you don't know what
// implementations will be written in the future.
//
// How can you write the tests without committing to the type
// parameters? That's what "type-parameterized tests" can do for you.
// It is a bit more involved than typed tests, but in return you get a
// test pattern that can be reused in many contexts, which is a big
// win. Here's how you do it:
// First, define a test fixture class template. Here we just reuse
// the PrimeTableTest fixture defined earlier:
template <class T>
class PrimeTableTest2 : public PrimeTableTest<T> {
};
// Then, declare the test case. The argument is the name of the test
// fixture, and also the name of the test case (as usual). The _P
// suffix is for "parameterized" or "pattern".
TYPED_TEST_CASE_P(PrimeTableTest2);
// Next, use TYPED_TEST_P(TestCaseName, TestName) to define a test,
// similar to what you do with TEST_F.
TYPED_TEST_P(PrimeTableTest2, ReturnsFalseForNonPrimes) {
EXPECT_FALSE(this->table_->IsPrime(-5));
EXPECT_FALSE(this->table_->IsPrime(0));
EXPECT_FALSE(this->table_->IsPrime(1));
EXPECT_FALSE(this->table_->IsPrime(4));
EXPECT_FALSE(this->table_->IsPrime(6));
EXPECT_FALSE(this->table_->IsPrime(100));
}
TYPED_TEST_P(PrimeTableTest2, ReturnsTrueForPrimes) {
EXPECT_TRUE(this->table_->IsPrime(2));
EXPECT_TRUE(this->table_->IsPrime(3));
EXPECT_TRUE(this->table_->IsPrime(5));
EXPECT_TRUE(this->table_->IsPrime(7));
EXPECT_TRUE(this->table_->IsPrime(11));
EXPECT_TRUE(this->table_->IsPrime(131));
}
TYPED_TEST_P(PrimeTableTest2, CanGetNextPrime) {
EXPECT_EQ(2, this->table_->GetNextPrime(0));
EXPECT_EQ(3, this->table_->GetNextPrime(2));
EXPECT_EQ(5, this->table_->GetNextPrime(3));
EXPECT_EQ(7, this->table_->GetNextPrime(5));
EXPECT_EQ(11, this->table_->GetNextPrime(7));
EXPECT_EQ(131, this->table_->GetNextPrime(128));
}
// Type-parameterized tests involve one extra step: you have to
// enumerate the tests you defined:
REGISTER_TYPED_TEST_CASE_P(
PrimeTableTest2, // The first argument is the test case name.
// The rest of the arguments are the test names.
ReturnsFalseForNonPrimes, ReturnsTrueForPrimes, CanGetNextPrime);
// At this point the test pattern is done. However, you don't have
// any real test yet as you haven't said which types you want to run
// the tests with.
// To turn the abstract test pattern into real tests, you instantiate
// it with a list of types. Usually the test pattern will be defined
// in a .h file, and anyone can #include and instantiate it. You can
// even instantiate it more than once in the same program. To tell
// different instances apart, you give each of them a name, which will
// become part of the test case name and can be used in test filters.
// The list of types we want to test. Note that it doesn't have to be
// defined at the time we write the TYPED_TEST_P()s.
typedef Types<OnTheFlyPrimeTable, PreCalculatedPrimeTable>
PrimeTableImplementations;
INSTANTIATE_TYPED_TEST_CASE_P(OnTheFlyAndPreCalculated, // Instance name
PrimeTableTest2, // Test case name
PrimeTableImplementations); // Type list
#endif // GTEST_HAS_TYPED_TEST_P

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// 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: wan@google.com (Zhanyong Wan)
#include <gtest/gtest-typed-test.h>
#include <gtest/gtest.h>
namespace testing {
namespace internal {
#ifdef GTEST_HAS_TYPED_TEST_P
// Verifies that registered_tests match the test names in
// defined_test_names_; returns registered_tests if successful, or
// aborts the program otherwise.
const char* TypedTestCasePState::VerifyRegisteredTestNames(
const char* file, int line, const char* registered_tests) {
typedef ::std::set<const char*>::const_iterator DefinedTestIter;
registered_ = true;
Message errors;
::std::set<String> tests;
for (const char* names = registered_tests; names != NULL;
names = SkipComma(names)) {
const String name = GetPrefixUntilComma(names);
if (tests.count(name) != 0) {
errors << "Test " << name << " is listed more than once.\n";
continue;
}
bool found = false;
for (DefinedTestIter it = defined_test_names_.begin();
it != defined_test_names_.end();
++it) {
if (name == *it) {
found = true;
break;
}
}
if (found) {
tests.insert(name);
} else {
errors << "No test named " << name
<< " can be found in this test case.\n";
}
}
for (DefinedTestIter it = defined_test_names_.begin();
it != defined_test_names_.end();
++it) {
if (tests.count(*it) == 0) {
errors << "You forgot to list test " << *it << ".\n";
}
}
const String& errors_str = errors.GetString();
if (errors_str != "") {
fprintf(stderr, "%s %s", FormatFileLocation(file, line).c_str(),
errors_str.c_str());
abort();
}
return registered_tests;
}
#endif // GTEST_HAS_TYPED_TEST_P
} // namespace internal
} // namespace testing

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// 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: wan@google.com (Zhanyong Wan)
#include <vector>
#include "test/gtest-typed-test_test.h"
#include <gtest/gtest.h>
#ifdef GTEST_HAS_TYPED_TEST_P
// Tests that the same type-parameterized test case can be
// instantiated in different translation units linked together.
// (ContainerTest is also instantiated in gtest-typed-test_test.cc.)
INSTANTIATE_TYPED_TEST_CASE_P(Vector, ContainerTest,
testing::Types<std::vector<int> >);
#endif // GTEST_HAS_TYPED_TEST_P

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// 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: wan@google.com (Zhanyong Wan)
#include <list>
#include <set>
#include "test/gtest-typed-test_test.h"
#include <gtest/gtest.h>
using testing::Test;
// Used for testing that SetUpTestCase()/TearDownTestCase(), fixture
// ctor/dtor, and SetUp()/TearDown() work correctly in typed tests and
// type-parameterized test.
template <typename T>
class CommonTest : public Test {
// For some technical reason, SetUpTestCase() and TearDownTestCase()
// must be public.
public:
static void SetUpTestCase() {
shared_ = new T(5);
}
static void TearDownTestCase() {
delete shared_;
shared_ = NULL;
}
// This 'protected:' is optional. There's no harm in making all
// members of this fixture class template public.
protected:
typedef std::list<T> List;
typedef std::set<int> IntSet;
CommonTest() : value_(1) {}
virtual ~CommonTest() { EXPECT_EQ(3, value_); }
virtual void SetUp() {
EXPECT_EQ(1, value_);
value_++;
}
virtual void TearDown() {
EXPECT_EQ(2, value_);
value_++;
}
T value_;
static T* shared_;
};
template <typename T>
T* CommonTest<T>::shared_ = NULL;
// This #ifdef block tests typed tests.
#ifdef GTEST_HAS_TYPED_TEST
using testing::Types;
// Tests that SetUpTestCase()/TearDownTestCase(), fixture ctor/dtor,
// and SetUp()/TearDown() work correctly in typed tests
typedef Types<char, int> TwoTypes;
TYPED_TEST_CASE(CommonTest, TwoTypes);
TYPED_TEST(CommonTest, ValuesAreCorrect) {
// Static members of the fixture class template can be visited via
// the TestFixture:: prefix.
EXPECT_EQ(5, *TestFixture::shared_);
// Typedefs in the fixture class template can be visited via the
// "typename TestFixture::" prefix.
typename TestFixture::List empty;
EXPECT_EQ(0, empty.size());
typename TestFixture::IntSet empty2;
EXPECT_EQ(0, empty2.size());
// Non-static members of the fixture class must be visited via
// 'this', as required by C++ for class templates.
EXPECT_EQ(2, this->value_);
}
// The second test makes sure shared_ is not deleted after the first
// test.
TYPED_TEST(CommonTest, ValuesAreStillCorrect) {
// Static members of the fixture class template can also be visited
// via 'this'.
ASSERT_TRUE(this->shared_ != NULL);
EXPECT_EQ(5, *this->shared_);
// TypeParam can be used to refer to the type parameter.
EXPECT_EQ(static_cast<TypeParam>(2), this->value_);
}
// Tests that multiple TYPED_TEST_CASE's can be defined in the same
// translation unit.
template <typename T>
class TypedTest1 : public Test {
};
// Verifies that the second argument of TYPED_TEST_CASE can be a
// single type.
TYPED_TEST_CASE(TypedTest1, int);
TYPED_TEST(TypedTest1, A) {}
template <typename T>
class TypedTest2 : public Test {
};
// Verifies that the second argument of TYPED_TEST_CASE can be a
// Types<...> type list.
TYPED_TEST_CASE(TypedTest2, Types<int>);
// This also verifies that tests from different typed test cases can
// share the same name.
TYPED_TEST(TypedTest2, A) {}
// Tests that a typed test case can be defined in a namespace.
namespace library1 {
template <typename T>
class NumericTest : public Test {
};
typedef Types<int, long> NumericTypes;
TYPED_TEST_CASE(NumericTest, NumericTypes);
TYPED_TEST(NumericTest, DefaultIsZero) {
EXPECT_EQ(0, TypeParam());
}
} // namespace library1
#endif // GTEST_HAS_TYPED_TEST
// This #ifdef block tests type-parameterized tests.
#ifdef GTEST_HAS_TYPED_TEST_P
using testing::Types;
using testing::internal::TypedTestCasePState;
// Tests TypedTestCasePState.
class TypedTestCasePStateTest : public Test {
protected:
virtual void SetUp() {
state_.AddTestName("foo.cc", 0, "FooTest", "A");
state_.AddTestName("foo.cc", 0, "FooTest", "B");
state_.AddTestName("foo.cc", 0, "FooTest", "C");
}
TypedTestCasePState state_;
};
TEST_F(TypedTestCasePStateTest, SucceedsForMatchingList) {
const char* tests = "A, B, C";
EXPECT_EQ(tests,
state_.VerifyRegisteredTestNames("foo.cc", 1, tests));
}
// Makes sure that the order of the tests and spaces around the names
// don't matter.
TEST_F(TypedTestCasePStateTest, IgnoresOrderAndSpaces) {
const char* tests = "A,C, B";
EXPECT_EQ(tests,
state_.VerifyRegisteredTestNames("foo.cc", 1, tests));
}
#ifdef GTEST_HAS_DEATH_TEST
typedef TypedTestCasePStateTest TypedTestCasePStateDeathTest;
TEST_F(TypedTestCasePStateDeathTest, DetectsDuplicates) {
EXPECT_DEATH(
state_.VerifyRegisteredTestNames("foo.cc", 1, "A, B, A, C"),
"foo\\.cc:1: Test A is listed more than once\\.");
}
TEST_F(TypedTestCasePStateDeathTest, DetectsExtraTest) {
EXPECT_DEATH(
state_.VerifyRegisteredTestNames("foo.cc", 1, "A, B, C, D"),
"foo\\.cc:1: No test named D can be found in this test case\\.");
}
TEST_F(TypedTestCasePStateDeathTest, DetectsMissedTest) {
EXPECT_DEATH(
state_.VerifyRegisteredTestNames("foo.cc", 1, "A, C"),
"foo\\.cc:1: You forgot to list test B\\.");
}
// Tests that defining a test for a parameterized test case generates
// a run-time error if the test case has been registered.
TEST_F(TypedTestCasePStateDeathTest, DetectsTestAfterRegistration) {
state_.VerifyRegisteredTestNames("foo.cc", 1, "A, B, C");
EXPECT_DEATH(
state_.AddTestName("foo.cc", 2, "FooTest", "D"),
"foo\\.cc:2: Test D must be defined before REGISTER_TYPED_TEST_CASE_P"
"\\(FooTest, \\.\\.\\.\\)\\.");
}
#endif // GTEST_HAS_DEATH_TEST
// Tests that SetUpTestCase()/TearDownTestCase(), fixture ctor/dtor,
// and SetUp()/TearDown() work correctly in type-parameterized tests.
template <typename T>
class DerivedTest : public CommonTest<T> {
};
TYPED_TEST_CASE_P(DerivedTest);
TYPED_TEST_P(DerivedTest, ValuesAreCorrect) {
// Static members of the fixture class template can be visited via
// the TestFixture:: prefix.
EXPECT_EQ(5, *TestFixture::shared_);
// Non-static members of the fixture class must be visited via
// 'this', as required by C++ for class templates.
EXPECT_EQ(2, this->value_);
}
// The second test makes sure shared_ is not deleted after the first
// test.
TYPED_TEST_P(DerivedTest, ValuesAreStillCorrect) {
// Static members of the fixture class template can also be visited
// via 'this'.
ASSERT_TRUE(this->shared_ != NULL);
EXPECT_EQ(5, *this->shared_);
EXPECT_EQ(2, this->value_);
}
REGISTER_TYPED_TEST_CASE_P(DerivedTest,
ValuesAreCorrect, ValuesAreStillCorrect);
typedef Types<short, long> MyTwoTypes;
INSTANTIATE_TYPED_TEST_CASE_P(My, DerivedTest, MyTwoTypes);
// Tests that multiple TYPED_TEST_CASE_P's can be defined in the same
// translation unit.
template <typename T>
class TypedTestP1 : public Test {
};
TYPED_TEST_CASE_P(TypedTestP1);
// For testing that the code between TYPED_TEST_CASE_P() and
// TYPED_TEST_P() is not enclosed in a namespace.
typedef int IntAfterTypedTestCaseP;
TYPED_TEST_P(TypedTestP1, A) {}
TYPED_TEST_P(TypedTestP1, B) {}
// For testing that the code between TYPED_TEST_P() and
// REGISTER_TYPED_TEST_CASE_P() is not enclosed in a namespace.
typedef int IntBeforeRegisterTypedTestCaseP;
REGISTER_TYPED_TEST_CASE_P(TypedTestP1, A, B);
template <typename T>
class TypedTestP2 : public Test {
};
TYPED_TEST_CASE_P(TypedTestP2);
// This also verifies that tests from different type-parameterized
// test cases can share the same name.
TYPED_TEST_P(TypedTestP2, A) {}
REGISTER_TYPED_TEST_CASE_P(TypedTestP2, A);
// Verifies that the code between TYPED_TEST_CASE_P() and
// REGISTER_TYPED_TEST_CASE_P() is not enclosed in a namespace.
IntAfterTypedTestCaseP after = 0;
IntBeforeRegisterTypedTestCaseP before = 0;
// Verifies that the last argument of INSTANTIATE_TYPED_TEST_CASE_P()
// can be either a single type or a Types<...> type list.
INSTANTIATE_TYPED_TEST_CASE_P(Int, TypedTestP1, int);
INSTANTIATE_TYPED_TEST_CASE_P(Int, TypedTestP2, Types<int>);
// Tests that the same type-parameterized test case can be
// instantiated more than once in the same translation unit.
INSTANTIATE_TYPED_TEST_CASE_P(Double, TypedTestP2, Types<double>);
// Tests that the same type-parameterized test case can be
// instantiated in different translation units linked together.
// (ContainerTest is also instantiated in gtest-typed-test_test.cc.)
typedef Types<std::list<double>, std::set<char> > MyContainers;
INSTANTIATE_TYPED_TEST_CASE_P(My, ContainerTest, MyContainers);
// Tests that a type-parameterized test case can be defined and
// instantiated in a namespace.
namespace library2 {
template <typename T>
class NumericTest : public Test {
};
TYPED_TEST_CASE_P(NumericTest);
TYPED_TEST_P(NumericTest, DefaultIsZero) {
EXPECT_EQ(0, TypeParam());
}
TYPED_TEST_P(NumericTest, ZeroIsLessThanOne) {
EXPECT_LT(TypeParam(0), TypeParam(1));
}
REGISTER_TYPED_TEST_CASE_P(NumericTest,
DefaultIsZero, ZeroIsLessThanOne);
typedef Types<int, double> NumericTypes;
INSTANTIATE_TYPED_TEST_CASE_P(My, NumericTest, NumericTypes);
} // namespace library2
#endif // GTEST_HAS_TYPED_TEST_P

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test/gtest-typed-test_test.h
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// 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: wan@google.com (Zhanyong Wan)
#ifndef GTEST_TEST_GTEST_TYPED_TEST_TEST_H_
#define GTEST_TEST_GTEST_TYPED_TEST_TEST_H_
#include <gtest/gtest.h>
#ifdef GTEST_HAS_TYPED_TEST_P
using testing::Test;
// For testing that the same type-parameterized test case can be
// instantiated in different translation units linked together.
// ContainerTest will be instantiated in both gtest-typed-test_test.cc
// and gtest-typed-test2_test.cc.
template <typename T>
class ContainerTest : public Test {
};
TYPED_TEST_CASE_P(ContainerTest);
TYPED_TEST_P(ContainerTest, CanBeDefaultConstructed) {
TypeParam container;
}
TYPED_TEST_P(ContainerTest, InitialSizeIsZero) {
TypeParam container;
EXPECT_EQ(0, container.size());
}
REGISTER_TYPED_TEST_CASE_P(ContainerTest,
CanBeDefaultConstructed, InitialSizeIsZero);
#endif // GTEST_HAS_TYPED_TEST_P
#endif // GTEST_TEST_GTEST_TYPED_TEST_TEST_H_
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