133 lines
5.1 KiB
C++
133 lines
5.1 KiB
C++
// Copyright 2008 Google Inc.
|
|
// All Rights Reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following disclaimer
|
|
// in the documentation and/or other materials provided with the
|
|
// distribution.
|
|
// * Neither the name of Google Inc. nor the names of its
|
|
// contributors may be used to endorse or promote products derived from
|
|
// this software without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// Author: vladl@google.com (Vlad Losev)
|
|
|
|
// This sample shows how to test common properties of multiple
|
|
// implementations of an interface (aka interface tests) using
|
|
// value-parameterized tests. Each test in the test case has
|
|
// a parameter that is an interface pointer to an implementation
|
|
// tested.
|
|
|
|
// The interface and its implementations are in this header.
|
|
#include "prime_tables.h"
|
|
|
|
#include <gtest/gtest.h>
|
|
|
|
#if GTEST_HAS_PARAM_TEST
|
|
|
|
using ::testing::TestWithParam;
|
|
using ::testing::Values;
|
|
|
|
// As a general rule, tested objects should not be reused between tests.
|
|
// Also, their constructors and destructors of tested objects can have
|
|
// side effects. Thus you should create and destroy them for each test.
|
|
// In this sample we will define a simple factory function for PrimeTable
|
|
// objects. We will instantiate objects in test's SetUp() method and
|
|
// delete them in TearDown() method.
|
|
typedef PrimeTable* CreatePrimeTableFunc();
|
|
|
|
PrimeTable* CreateOnTheFlyPrimeTable() {
|
|
return new OnTheFlyPrimeTable();
|
|
}
|
|
|
|
template <size_t max_precalculated>
|
|
PrimeTable* CreatePreCalculatedPrimeTable() {
|
|
return new PreCalculatedPrimeTable(max_precalculated);
|
|
}
|
|
|
|
// Inside the test body, fixture constructor, SetUp(), and TearDown()
|
|
// you can refer to the test parameter by GetParam().
|
|
// In this case, the test parameter is a PrimeTableFactory interface pointer
|
|
// which we use in fixture's SetUp() to create and store an instance of
|
|
// PrimeTable.
|
|
class PrimeTableTest : public TestWithParam<CreatePrimeTableFunc*> {
|
|
public:
|
|
virtual ~PrimeTableTest() { delete table_; }
|
|
virtual void SetUp() { table_ = (*GetParam())(); }
|
|
virtual void TearDown() {
|
|
delete table_;
|
|
table_ = NULL;
|
|
}
|
|
|
|
protected:
|
|
PrimeTable* table_;
|
|
};
|
|
|
|
TEST_P(PrimeTableTest, ReturnsFalseForNonPrimes) {
|
|
EXPECT_FALSE(table_->IsPrime(-5));
|
|
EXPECT_FALSE(table_->IsPrime(0));
|
|
EXPECT_FALSE(table_->IsPrime(1));
|
|
EXPECT_FALSE(table_->IsPrime(4));
|
|
EXPECT_FALSE(table_->IsPrime(6));
|
|
EXPECT_FALSE(table_->IsPrime(100));
|
|
}
|
|
|
|
TEST_P(PrimeTableTest, ReturnsTrueForPrimes) {
|
|
EXPECT_TRUE(table_->IsPrime(2));
|
|
EXPECT_TRUE(table_->IsPrime(3));
|
|
EXPECT_TRUE(table_->IsPrime(5));
|
|
EXPECT_TRUE(table_->IsPrime(7));
|
|
EXPECT_TRUE(table_->IsPrime(11));
|
|
EXPECT_TRUE(table_->IsPrime(131));
|
|
}
|
|
|
|
TEST_P(PrimeTableTest, CanGetNextPrime) {
|
|
EXPECT_EQ(2, table_->GetNextPrime(0));
|
|
EXPECT_EQ(3, table_->GetNextPrime(2));
|
|
EXPECT_EQ(5, table_->GetNextPrime(3));
|
|
EXPECT_EQ(7, table_->GetNextPrime(5));
|
|
EXPECT_EQ(11, table_->GetNextPrime(7));
|
|
EXPECT_EQ(131, table_->GetNextPrime(128));
|
|
}
|
|
|
|
// In order to run value-parameterized tests, you need to instantiate them,
|
|
// or bind them to a list of values which will be used as test parameters.
|
|
// You can instantiate them in a different translation module, or even
|
|
// instantiate them several times.
|
|
//
|
|
// Here, we instantiate our tests with a list of two PrimeTable object
|
|
// factory functions:
|
|
INSTANTIATE_TEST_CASE_P(
|
|
OnTheFlyAndPreCalculated,
|
|
PrimeTableTest,
|
|
Values(&CreateOnTheFlyPrimeTable, &CreatePreCalculatedPrimeTable<1000>));
|
|
|
|
#else
|
|
|
|
// Google Test doesn't support value-parameterized tests on some platforms
|
|
// and compilers, such as MSVC 7.1. If we use conditional compilation to
|
|
// compile out all code referring to the gtest_main library, MSVC linker
|
|
// will not link that library at all and consequently complain about
|
|
// missing entry point defined in that library (fatal error LNK1561:
|
|
// entry point must be defined). This dummy test keeps gtest_main linked in.
|
|
TEST(DummyTest, ValueParameterizedTestsAreNotSupportedOnThisPlatform) {}
|
|
|
|
#endif // GTEST_HAS_PARAM_TEST
|