// 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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#include "test/gtest-typed-test_test.h"
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#include <set>
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#include <type_traits>
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#include <vector>
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#include "gtest/gtest.h"
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#if _MSC_VER
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GTEST_DISABLE_MSC_WARNINGS_PUSH_(4127 /* conditional expression is constant */)
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#endif // _MSC_VER
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using testing::Test;
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// Used for testing that SetUpTestSuite()/TearDownTestSuite(), fixture
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// ctor/dtor, and SetUp()/TearDown() work correctly in typed tests and
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// type-parameterized test.
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template <typename T>
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class CommonTest : public Test {
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// For some technical reason, SetUpTestSuite() and TearDownTestSuite()
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// must be public.
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public:
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static void SetUpTestSuite() {
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shared_ = new T(5);
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}
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static void TearDownTestSuite() {
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delete shared_;
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shared_ = nullptr;
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}
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// This 'protected:' is optional. There's no harm in making all
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// members of this fixture class template public.
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protected:
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// We used to use std::list here, but switched to std::vector since
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// MSVC's <list> doesn't compile cleanly with /W4.
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typedef std::vector<T> Vector;
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typedef std::set<int> IntSet;
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CommonTest() : value_(1) {}
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~CommonTest() override { EXPECT_EQ(3, value_); }
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void SetUp() override {
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EXPECT_EQ(1, value_);
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value_++;
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}
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void TearDown() override {
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EXPECT_EQ(2, value_);
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value_++;
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}
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T value_;
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static T* shared_;
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};
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template <typename T>
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T* CommonTest<T>::shared_ = nullptr;
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using testing::Types;
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// Tests that SetUpTestSuite()/TearDownTestSuite(), fixture ctor/dtor,
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// and SetUp()/TearDown() work correctly in typed tests
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typedef Types<char, int> TwoTypes;
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TYPED_TEST_SUITE(CommonTest, TwoTypes);
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TYPED_TEST(CommonTest, ValuesAreCorrect) {
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// Static members of the fixture class template can be visited via
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// the TestFixture:: prefix.
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EXPECT_EQ(5, *TestFixture::shared_);
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// Typedefs in the fixture class template can be visited via the
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// "typename TestFixture::" prefix.
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typename TestFixture::Vector empty;
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EXPECT_EQ(0U, empty.size());
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typename TestFixture::IntSet empty2;
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EXPECT_EQ(0U, empty2.size());
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// Non-static members of the fixture class must be visited via
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// 'this', as required by C++ for class templates.
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EXPECT_EQ(2, this->value_);
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}
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// The second test makes sure shared_ is not deleted after the first
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// test.
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TYPED_TEST(CommonTest, ValuesAreStillCorrect) {
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// Static members of the fixture class template can also be visited
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// via 'this'.
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ASSERT_TRUE(this->shared_ != nullptr);
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EXPECT_EQ(5, *this->shared_);
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// TypeParam can be used to refer to the type parameter.
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EXPECT_EQ(static_cast<TypeParam>(2), this->value_);
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}
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// Tests that multiple TYPED_TEST_SUITE's can be defined in the same
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// translation unit.
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template <typename T>
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class TypedTest1 : public Test {
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};
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// Verifies that the second argument of TYPED_TEST_SUITE can be a
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// single type.
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TYPED_TEST_SUITE(TypedTest1, int);
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TYPED_TEST(TypedTest1, A) {}
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template <typename T>
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class TypedTest2 : public Test {
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};
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// Verifies that the second argument of TYPED_TEST_SUITE can be a
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// Types<...> type list.
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TYPED_TEST_SUITE(TypedTest2, Types<int>);
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// This also verifies that tests from different typed test cases can
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// share the same name.
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TYPED_TEST(TypedTest2, A) {}
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// Tests that a typed test case can be defined in a namespace.
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namespace library1 {
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template <typename T>
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class NumericTest : public Test {
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};
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typedef Types<int, long> NumericTypes;
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TYPED_TEST_SUITE(NumericTest, NumericTypes);
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TYPED_TEST(NumericTest, DefaultIsZero) {
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EXPECT_EQ(0, TypeParam());
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}
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} // namespace library1
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// Tests that custom names work.
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template <typename T>
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class TypedTestWithNames : public Test {};
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class TypedTestNames {
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public:
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template <typename T>
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static std::string GetName(int i) {
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if (std::is_same<T, char>::value) {
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return std::string("char") + ::testing::PrintToString(i);
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}
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if (std::is_same<T, int>::value) {
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return std::string("int") + ::testing::PrintToString(i);
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}
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}
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};
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TYPED_TEST_SUITE(TypedTestWithNames, TwoTypes, TypedTestNames);
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TYPED_TEST(TypedTestWithNames, TestSuiteName) {
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if (std::is_same<TypeParam, char>::value) {
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EXPECT_STREQ(::testing::UnitTest::GetInstance()
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->current_test_info()
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->test_suite_name(),
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"TypedTestWithNames/char0");
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}
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if (std::is_same<TypeParam, int>::value) {
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EXPECT_STREQ(::testing::UnitTest::GetInstance()
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->current_test_info()
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->test_suite_name(),
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"TypedTestWithNames/int1");
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}
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}
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using testing::Types;
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using testing::internal::TypedTestSuitePState;
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// Tests TypedTestSuitePState.
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class TypedTestSuitePStateTest : public Test {
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protected:
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void SetUp() override {
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state_.AddTestName("foo.cc", 0, "FooTest", "A");
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state_.AddTestName("foo.cc", 0, "FooTest", "B");
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state_.AddTestName("foo.cc", 0, "FooTest", "C");
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}
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TypedTestSuitePState state_;
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};
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TEST_F(TypedTestSuitePStateTest, SucceedsForMatchingList) {
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const char* tests = "A, B, C";
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EXPECT_EQ(tests,
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state_.VerifyRegisteredTestNames("Suite", "foo.cc", 1, tests));
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}
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// Makes sure that the order of the tests and spaces around the names
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// don't matter.
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TEST_F(TypedTestSuitePStateTest, IgnoresOrderAndSpaces) {
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const char* tests = "A,C, B";
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EXPECT_EQ(tests,
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state_.VerifyRegisteredTestNames("Suite", "foo.cc", 1, tests));
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}
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using TypedTestSuitePStateDeathTest = TypedTestSuitePStateTest;
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TEST_F(TypedTestSuitePStateDeathTest, DetectsDuplicates) {
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EXPECT_DEATH_IF_SUPPORTED(
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state_.VerifyRegisteredTestNames("Suite", "foo.cc", 1, "A, B, A, C"),
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"foo\\.cc.1.?: Test A is listed more than once\\.");
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}
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TEST_F(TypedTestSuitePStateDeathTest, DetectsExtraTest) {
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EXPECT_DEATH_IF_SUPPORTED(
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state_.VerifyRegisteredTestNames("Suite", "foo.cc", 1, "A, B, C, D"),
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"foo\\.cc.1.?: No test named D can be found in this test suite\\.");
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}
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TEST_F(TypedTestSuitePStateDeathTest, DetectsMissedTest) {
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EXPECT_DEATH_IF_SUPPORTED(
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state_.VerifyRegisteredTestNames("Suite", "foo.cc", 1, "A, C"),
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"foo\\.cc.1.?: You forgot to list test B\\.");
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}
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// Tests that defining a test for a parameterized test case generates
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// a run-time error if the test case has been registered.
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TEST_F(TypedTestSuitePStateDeathTest, DetectsTestAfterRegistration) {
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state_.VerifyRegisteredTestNames("Suite", "foo.cc", 1, "A, B, C");
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EXPECT_DEATH_IF_SUPPORTED(
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state_.AddTestName("foo.cc", 2, "FooTest", "D"),
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"foo\\.cc.2.?: Test D must be defined before REGISTER_TYPED_TEST_SUITE_P"
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"\\(FooTest, \\.\\.\\.\\)\\.");
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}
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// Tests that SetUpTestSuite()/TearDownTestSuite(), fixture ctor/dtor,
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// and SetUp()/TearDown() work correctly in type-parameterized tests.
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template <typename T>
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class DerivedTest : public CommonTest<T> {
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};
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TYPED_TEST_SUITE_P(DerivedTest);
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TYPED_TEST_P(DerivedTest, ValuesAreCorrect) {
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// Static members of the fixture class template can be visited via
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// the TestFixture:: prefix.
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EXPECT_EQ(5, *TestFixture::shared_);
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// Non-static members of the fixture class must be visited via
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// 'this', as required by C++ for class templates.
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EXPECT_EQ(2, this->value_);
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}
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// The second test makes sure shared_ is not deleted after the first
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// test.
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TYPED_TEST_P(DerivedTest, ValuesAreStillCorrect) {
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// Static members of the fixture class template can also be visited
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// via 'this'.
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ASSERT_TRUE(this->shared_ != nullptr);
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EXPECT_EQ(5, *this->shared_);
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EXPECT_EQ(2, this->value_);
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}
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REGISTER_TYPED_TEST_SUITE_P(DerivedTest,
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ValuesAreCorrect, ValuesAreStillCorrect);
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typedef Types<short, long> MyTwoTypes;
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INSTANTIATE_TYPED_TEST_SUITE_P(My, DerivedTest, MyTwoTypes);
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// Tests that custom names work with type parametrized tests. We reuse the
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// TwoTypes from above here.
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template <typename T>
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class TypeParametrizedTestWithNames : public Test {};
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TYPED_TEST_SUITE_P(TypeParametrizedTestWithNames);
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TYPED_TEST_P(TypeParametrizedTestWithNames, TestSuiteName) {
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if (std::is_same<TypeParam, char>::value) {
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EXPECT_STREQ(::testing::UnitTest::GetInstance()
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->current_test_info()
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->test_suite_name(),
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"CustomName/TypeParametrizedTestWithNames/parChar0");
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}
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if (std::is_same<TypeParam, int>::value) {
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EXPECT_STREQ(::testing::UnitTest::GetInstance()
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->current_test_info()
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->test_suite_name(),
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"CustomName/TypeParametrizedTestWithNames/parInt1");
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}
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}
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REGISTER_TYPED_TEST_SUITE_P(TypeParametrizedTestWithNames, TestSuiteName);
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class TypeParametrizedTestNames {
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public:
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template <typename T>
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static std::string GetName(int i) {
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if (std::is_same<T, char>::value) {
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return std::string("parChar") + ::testing::PrintToString(i);
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}
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if (std::is_same<T, int>::value) {
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return std::string("parInt") + ::testing::PrintToString(i);
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}
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}
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};
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INSTANTIATE_TYPED_TEST_SUITE_P(CustomName, TypeParametrizedTestWithNames,
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TwoTypes, TypeParametrizedTestNames);
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// Tests that multiple TYPED_TEST_SUITE_P's can be defined in the same
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// translation unit.
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template <typename T>
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class TypedTestP1 : public Test {
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};
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TYPED_TEST_SUITE_P(TypedTestP1);
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// For testing that the code between TYPED_TEST_SUITE_P() and
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// TYPED_TEST_P() is not enclosed in a namespace.
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using IntAfterTypedTestSuiteP = int;
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TYPED_TEST_P(TypedTestP1, A) {}
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TYPED_TEST_P(TypedTestP1, B) {}
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// For testing that the code between TYPED_TEST_P() and
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// REGISTER_TYPED_TEST_SUITE_P() is not enclosed in a namespace.
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using IntBeforeRegisterTypedTestSuiteP = int;
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REGISTER_TYPED_TEST_SUITE_P(TypedTestP1, A, B);
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template <typename T>
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class TypedTestP2 : public Test {
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};
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TYPED_TEST_SUITE_P(TypedTestP2);
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// This also verifies that tests from different type-parameterized
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// test cases can share the same name.
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TYPED_TEST_P(TypedTestP2, A) {}
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REGISTER_TYPED_TEST_SUITE_P(TypedTestP2, A);
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// Verifies that the code between TYPED_TEST_SUITE_P() and
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// REGISTER_TYPED_TEST_SUITE_P() is not enclosed in a namespace.
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IntAfterTypedTestSuiteP after = 0;
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IntBeforeRegisterTypedTestSuiteP before = 0;
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// Verifies that the last argument of INSTANTIATE_TYPED_TEST_SUITE_P()
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// can be either a single type or a Types<...> type list.
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INSTANTIATE_TYPED_TEST_SUITE_P(Int, TypedTestP1, int);
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INSTANTIATE_TYPED_TEST_SUITE_P(Int, TypedTestP2, Types<int>);
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// Tests that the same type-parameterized test case can be
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// instantiated more than once in the same translation unit.
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INSTANTIATE_TYPED_TEST_SUITE_P(Double, TypedTestP2, Types<double>);
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// Tests that the same type-parameterized test case can be
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// instantiated in different translation units linked together.
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// (ContainerTest is also instantiated in gtest-typed-test_test.cc.)
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typedef Types<std::vector<double>, std::set<char> > MyContainers;
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INSTANTIATE_TYPED_TEST_SUITE_P(My, ContainerTest, MyContainers);
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// Tests that a type-parameterized test case can be defined and
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// instantiated in a namespace.
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namespace library2 {
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template <typename T>
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class NumericTest : public Test {
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};
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TYPED_TEST_SUITE_P(NumericTest);
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TYPED_TEST_P(NumericTest, DefaultIsZero) {
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EXPECT_EQ(0, TypeParam());
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}
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TYPED_TEST_P(NumericTest, ZeroIsLessThanOne) {
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EXPECT_LT(TypeParam(0), TypeParam(1));
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}
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REGISTER_TYPED_TEST_SUITE_P(NumericTest,
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DefaultIsZero, ZeroIsLessThanOne);
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typedef Types<int, double> NumericTypes;
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INSTANTIATE_TYPED_TEST_SUITE_P(My, NumericTest, NumericTypes);
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static const char* GetTestName() {
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return testing::UnitTest::GetInstance()->current_test_info()->name();
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}
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// Test the stripping of space from test names
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template <typename T> class TrimmedTest : public Test { };
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TYPED_TEST_SUITE_P(TrimmedTest);
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TYPED_TEST_P(TrimmedTest, Test1) { EXPECT_STREQ("Test1", GetTestName()); }
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TYPED_TEST_P(TrimmedTest, Test2) { EXPECT_STREQ("Test2", GetTestName()); }
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TYPED_TEST_P(TrimmedTest, Test3) { EXPECT_STREQ("Test3", GetTestName()); }
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TYPED_TEST_P(TrimmedTest, Test4) { EXPECT_STREQ("Test4", GetTestName()); }
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TYPED_TEST_P(TrimmedTest, Test5) { EXPECT_STREQ("Test5", GetTestName()); }
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REGISTER_TYPED_TEST_SUITE_P(
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TrimmedTest,
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Test1, Test2,Test3 , Test4 ,Test5 ); // NOLINT
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template <typename T1, typename T2> struct MyPair {};
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// Be sure to try a type with a comma in its name just in case it matters.
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typedef Types<int, double, MyPair<int, int> > TrimTypes;
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INSTANTIATE_TYPED_TEST_SUITE_P(My, TrimmedTest, TrimTypes);
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} // namespace library2
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