Factor out AssertionResult into dedicated gtest-assertion-result header + implementation files to prevent cyclic includes between gtest.h and gtest_pred_impl.h
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googletest/include/gtest/gtest-assertion-result.h
Normal file
232
googletest/include/gtest/gtest-assertion-result.h
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@ -0,0 +1,232 @@
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// Copyright 2005, 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
|
||||
// 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
|
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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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// The Google C++ Testing and Mocking Framework (Google Test)
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//
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// This file implements the AssertionResult type.
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// IWYU pragma: private, include "gtest/gtest.h"
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// IWYU pragma: friend gtest/.*
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// IWYU pragma: friend gmock/.*
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#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_ASSERTION_RESULT_H_
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#define GOOGLETEST_INCLUDE_GTEST_GTEST_ASSERTION_RESULT_H_
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#include <memory>
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#include <ostream>
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#include <string>
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#include <type_traits>
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#include "gtest/gtest-message.h"
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#include "gtest/internal/gtest-port.h"
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namespace testing {
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// A class for indicating whether an assertion was successful. When
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// the assertion wasn't successful, the AssertionResult object
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// remembers a non-empty message that describes how it failed.
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//
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// To create an instance of this class, use one of the factory functions
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// (AssertionSuccess() and AssertionFailure()).
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//
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// This class is useful for two purposes:
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// 1. Defining predicate functions to be used with Boolean test assertions
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// EXPECT_TRUE/EXPECT_FALSE and their ASSERT_ counterparts
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// 2. Defining predicate-format functions to be
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// used with predicate assertions (ASSERT_PRED_FORMAT*, etc).
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//
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// For example, if you define IsEven predicate:
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//
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// testing::AssertionResult IsEven(int n) {
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// if ((n % 2) == 0)
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// return testing::AssertionSuccess();
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// else
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// return testing::AssertionFailure() << n << " is odd";
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// }
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//
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// Then the failed expectation EXPECT_TRUE(IsEven(Fib(5)))
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// will print the message
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//
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// Value of: IsEven(Fib(5))
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// Actual: false (5 is odd)
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// Expected: true
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//
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// instead of a more opaque
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//
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// Value of: IsEven(Fib(5))
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// Actual: false
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// Expected: true
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//
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// in case IsEven is a simple Boolean predicate.
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//
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// If you expect your predicate to be reused and want to support informative
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// messages in EXPECT_FALSE and ASSERT_FALSE (negative assertions show up
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// about half as often as positive ones in our tests), supply messages for
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// both success and failure cases:
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//
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// testing::AssertionResult IsEven(int n) {
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// if ((n % 2) == 0)
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// return testing::AssertionSuccess() << n << " is even";
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// else
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// return testing::AssertionFailure() << n << " is odd";
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// }
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//
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// Then a statement EXPECT_FALSE(IsEven(Fib(6))) will print
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//
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// Value of: IsEven(Fib(6))
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// Actual: true (8 is even)
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// Expected: false
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//
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// NB: Predicates that support negative Boolean assertions have reduced
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// performance in positive ones so be careful not to use them in tests
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// that have lots (tens of thousands) of positive Boolean assertions.
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//
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// To use this class with EXPECT_PRED_FORMAT assertions such as:
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//
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// // Verifies that Foo() returns an even number.
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// EXPECT_PRED_FORMAT1(IsEven, Foo());
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//
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// you need to define:
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//
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// testing::AssertionResult IsEven(const char* expr, int n) {
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// if ((n % 2) == 0)
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// return testing::AssertionSuccess();
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// else
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// return testing::AssertionFailure()
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// << "Expected: " << expr << " is even\n Actual: it's " << n;
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// }
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//
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// If Foo() returns 5, you will see the following message:
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//
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// Expected: Foo() is even
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// Actual: it's 5
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//
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class GTEST_API_ AssertionResult {
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public:
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// Copy constructor.
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// Used in EXPECT_TRUE/FALSE(assertion_result).
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AssertionResult(const AssertionResult& other);
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// C4800 is a level 3 warning in Visual Studio 2015 and earlier.
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// This warning is not emitted in Visual Studio 2017.
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// This warning is off by default starting in Visual Studio 2019 but can be
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// enabled with command-line options.
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#if defined(_MSC_VER) && (_MSC_VER < 1910 || _MSC_VER >= 1920)
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GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 /* forcing value to bool */)
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#endif
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// Used in the EXPECT_TRUE/FALSE(bool_expression).
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//
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// T must be contextually convertible to bool.
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//
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// The second parameter prevents this overload from being considered if
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// the argument is implicitly convertible to AssertionResult. In that case
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// we want AssertionResult's copy constructor to be used.
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template <typename T>
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explicit AssertionResult(
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const T& success,
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typename std::enable_if<
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!std::is_convertible<T, AssertionResult>::value>::type*
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/*enabler*/
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= nullptr)
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: success_(success) {}
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#if defined(_MSC_VER) && (_MSC_VER < 1910 || _MSC_VER >= 1920)
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GTEST_DISABLE_MSC_WARNINGS_POP_()
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#endif
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// Assignment operator.
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AssertionResult& operator=(AssertionResult other) {
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swap(other);
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return *this;
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}
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// Returns true if and only if the assertion succeeded.
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operator bool() const { return success_; } // NOLINT
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// Returns the assertion's negation. Used with EXPECT/ASSERT_FALSE.
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AssertionResult operator!() const;
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// Returns the text streamed into this AssertionResult. Test assertions
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// use it when they fail (i.e., the predicate's outcome doesn't match the
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// assertion's expectation). When nothing has been streamed into the
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// object, returns an empty string.
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const char* message() const {
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return message_.get() != nullptr ? message_->c_str() : "";
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}
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// Deprecated; please use message() instead.
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const char* failure_message() const { return message(); }
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// Streams a custom failure message into this object.
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template <typename T>
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AssertionResult& operator<<(const T& value) {
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AppendMessage(Message() << value);
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return *this;
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}
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// Allows streaming basic output manipulators such as endl or flush into
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// this object.
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AssertionResult& operator<<(
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::std::ostream& (*basic_manipulator)(::std::ostream& stream)) {
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AppendMessage(Message() << basic_manipulator);
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return *this;
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}
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private:
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// Appends the contents of message to message_.
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void AppendMessage(const Message& a_message) {
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if (message_.get() == nullptr) message_.reset(new ::std::string);
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message_->append(a_message.GetString().c_str());
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}
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// Swap the contents of this AssertionResult with other.
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void swap(AssertionResult& other);
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// Stores result of the assertion predicate.
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bool success_;
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// Stores the message describing the condition in case the expectation
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// construct is not satisfied with the predicate's outcome.
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// Referenced via a pointer to avoid taking too much stack frame space
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// with test assertions.
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std::unique_ptr< ::std::string> message_;
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};
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// Makes a successful assertion result.
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GTEST_API_ AssertionResult AssertionSuccess();
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// Makes a failed assertion result.
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GTEST_API_ AssertionResult AssertionFailure();
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// Makes a failed assertion result with the given failure message.
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// Deprecated; use AssertionFailure() << msg.
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GTEST_API_ AssertionResult AssertionFailure(const Message& msg);
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} // namespace testing
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#endif // GOOGLETEST_INCLUDE_GTEST_GTEST_ASSERTION_RESULT_H_
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@ -56,6 +56,7 @@
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#include <type_traits>
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#include <vector>
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#include "gtest/gtest-assertion-result.h"
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#include "gtest/gtest-death-test.h"
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#include "gtest/gtest-matchers.h"
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#include "gtest/gtest-message.h"
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@ -63,6 +64,7 @@
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#include "gtest/gtest-printers.h"
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#include "gtest/gtest-test-part.h"
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#include "gtest/gtest-typed-test.h"
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#include "gtest/gtest_pred_impl.h"
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#include "gtest/gtest_prod.h"
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#include "gtest/internal/gtest-internal.h"
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#include "gtest/internal/gtest-string.h"
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@ -203,193 +205,6 @@ using TestCase = TestSuite;
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class TestInfo;
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class UnitTest;
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// A class for indicating whether an assertion was successful. When
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// the assertion wasn't successful, the AssertionResult object
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// remembers a non-empty message that describes how it failed.
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//
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// To create an instance of this class, use one of the factory functions
|
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// (AssertionSuccess() and AssertionFailure()).
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//
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// This class is useful for two purposes:
|
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// 1. Defining predicate functions to be used with Boolean test assertions
|
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// EXPECT_TRUE/EXPECT_FALSE and their ASSERT_ counterparts
|
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// 2. Defining predicate-format functions to be
|
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// used with predicate assertions (ASSERT_PRED_FORMAT*, etc).
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//
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// For example, if you define IsEven predicate:
|
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//
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// testing::AssertionResult IsEven(int n) {
|
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// if ((n % 2) == 0)
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// return testing::AssertionSuccess();
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// else
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// return testing::AssertionFailure() << n << " is odd";
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// }
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//
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// Then the failed expectation EXPECT_TRUE(IsEven(Fib(5)))
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// will print the message
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//
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// Value of: IsEven(Fib(5))
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// Actual: false (5 is odd)
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// Expected: true
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//
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// instead of a more opaque
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//
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// Value of: IsEven(Fib(5))
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// Actual: false
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// Expected: true
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//
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// in case IsEven is a simple Boolean predicate.
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//
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// If you expect your predicate to be reused and want to support informative
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// messages in EXPECT_FALSE and ASSERT_FALSE (negative assertions show up
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// about half as often as positive ones in our tests), supply messages for
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// both success and failure cases:
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//
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// testing::AssertionResult IsEven(int n) {
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// if ((n % 2) == 0)
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// return testing::AssertionSuccess() << n << " is even";
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// else
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// return testing::AssertionFailure() << n << " is odd";
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// }
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//
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// Then a statement EXPECT_FALSE(IsEven(Fib(6))) will print
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//
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// Value of: IsEven(Fib(6))
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// Actual: true (8 is even)
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// Expected: false
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//
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// NB: Predicates that support negative Boolean assertions have reduced
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// performance in positive ones so be careful not to use them in tests
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// that have lots (tens of thousands) of positive Boolean assertions.
|
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//
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// To use this class with EXPECT_PRED_FORMAT assertions such as:
|
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//
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// // Verifies that Foo() returns an even number.
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// EXPECT_PRED_FORMAT1(IsEven, Foo());
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//
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// you need to define:
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//
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// testing::AssertionResult IsEven(const char* expr, int n) {
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// if ((n % 2) == 0)
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// return testing::AssertionSuccess();
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// else
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// return testing::AssertionFailure()
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// << "Expected: " << expr << " is even\n Actual: it's " << n;
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// }
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//
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// If Foo() returns 5, you will see the following message:
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//
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// Expected: Foo() is even
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// Actual: it's 5
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//
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class GTEST_API_ AssertionResult {
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public:
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// Copy constructor.
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// Used in EXPECT_TRUE/FALSE(assertion_result).
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AssertionResult(const AssertionResult& other);
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// C4800 is a level 3 warning in Visual Studio 2015 and earlier.
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// This warning is not emitted in Visual Studio 2017.
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// This warning is off by default starting in Visual Studio 2019 but can be
|
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// enabled with command-line options.
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#if defined(_MSC_VER) && (_MSC_VER < 1910 || _MSC_VER >= 1920)
|
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GTEST_DISABLE_MSC_WARNINGS_PUSH_(4800 /* forcing value to bool */)
|
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#endif
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|
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// Used in the EXPECT_TRUE/FALSE(bool_expression).
|
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//
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// T must be contextually convertible to bool.
|
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//
|
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// The second parameter prevents this overload from being considered if
|
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// the argument is implicitly convertible to AssertionResult. In that case
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// we want AssertionResult's copy constructor to be used.
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template <typename T>
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explicit AssertionResult(
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const T& success,
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typename std::enable_if<
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!std::is_convertible<T, AssertionResult>::value>::type*
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/*enabler*/
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= nullptr)
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: success_(success) {}
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#if defined(_MSC_VER) && (_MSC_VER < 1910 || _MSC_VER >= 1920)
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GTEST_DISABLE_MSC_WARNINGS_POP_()
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#endif
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// Assignment operator.
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AssertionResult& operator=(AssertionResult other) {
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swap(other);
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return *this;
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}
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// Returns true if and only if the assertion succeeded.
|
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operator bool() const { return success_; } // NOLINT
|
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|
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// Returns the assertion's negation. Used with EXPECT/ASSERT_FALSE.
|
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AssertionResult operator!() const;
|
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|
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// Returns the text streamed into this AssertionResult. Test assertions
|
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// use it when they fail (i.e., the predicate's outcome doesn't match the
|
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// assertion's expectation). When nothing has been streamed into the
|
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// object, returns an empty string.
|
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const char* message() const {
|
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return message_.get() != nullptr ? message_->c_str() : "";
|
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}
|
||||
// Deprecated; please use message() instead.
|
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const char* failure_message() const { return message(); }
|
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// Streams a custom failure message into this object.
|
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template <typename T> AssertionResult& operator<<(const T& value) {
|
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AppendMessage(Message() << value);
|
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return *this;
|
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}
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|
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// Allows streaming basic output manipulators such as endl or flush into
|
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// this object.
|
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AssertionResult& operator<<(
|
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::std::ostream& (*basic_manipulator)(::std::ostream& stream)) {
|
||||
AppendMessage(Message() << basic_manipulator);
|
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return *this;
|
||||
}
|
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|
||||
private:
|
||||
// Appends the contents of message to message_.
|
||||
void AppendMessage(const Message& a_message) {
|
||||
if (message_.get() == nullptr) message_.reset(new ::std::string);
|
||||
message_->append(a_message.GetString().c_str());
|
||||
}
|
||||
|
||||
// Swap the contents of this AssertionResult with other.
|
||||
void swap(AssertionResult& other);
|
||||
|
||||
// Stores result of the assertion predicate.
|
||||
bool success_;
|
||||
// Stores the message describing the condition in case the expectation
|
||||
// construct is not satisfied with the predicate's outcome.
|
||||
// Referenced via a pointer to avoid taking too much stack frame space
|
||||
// with test assertions.
|
||||
std::unique_ptr< ::std::string> message_;
|
||||
};
|
||||
|
||||
// Makes a successful assertion result.
|
||||
GTEST_API_ AssertionResult AssertionSuccess();
|
||||
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||||
// Makes a failed assertion result.
|
||||
GTEST_API_ AssertionResult AssertionFailure();
|
||||
|
||||
// Makes a failed assertion result with the given failure message.
|
||||
// Deprecated; use AssertionFailure() << msg.
|
||||
GTEST_API_ AssertionResult AssertionFailure(const Message& msg);
|
||||
|
||||
} // namespace testing
|
||||
|
||||
// Includes the auto-generated header that implements a family of generic
|
||||
// predicate assertion macros. This include comes late because it relies on
|
||||
// APIs declared above.
|
||||
#include "gtest/gtest_pred_impl.h"
|
||||
|
||||
namespace testing {
|
||||
|
||||
// The abstract class that all tests inherit from.
|
||||
//
|
||||
// In Google Test, a unit test program contains one or many TestSuites, and
|
||||
|
||||
@ -39,7 +39,9 @@
|
||||
#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
|
||||
#define GOOGLETEST_INCLUDE_GTEST_GTEST_PRED_IMPL_H_
|
||||
|
||||
#include "gtest/gtest.h"
|
||||
#include "gtest/gtest-assertion-result.h"
|
||||
#include "gtest/internal/gtest-internal.h"
|
||||
#include "gtest/internal/gtest-port.h"
|
||||
|
||||
namespace testing {
|
||||
|
||||
|
||||
@ -39,6 +39,7 @@
|
||||
|
||||
// The following lines pull in the real gtest *.cc files.
|
||||
#include "src/gtest.cc"
|
||||
#include "src/gtest-assertion-result.cc"
|
||||
#include "src/gtest-death-test.cc"
|
||||
#include "src/gtest-filepath.cc"
|
||||
#include "src/gtest-matchers.cc"
|
||||
|
||||
81
googletest/src/gtest-assertion-result.cc
Normal file
81
googletest/src/gtest-assertion-result.cc
Normal file
@ -0,0 +1,81 @@
|
||||
// Copyright 2005, 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.
|
||||
|
||||
// The Google C++ Testing and Mocking Framework (Google Test)
|
||||
//
|
||||
// This file defines the AssertionResult type.
|
||||
|
||||
#include "gtest/gtest-assertion-result.h"
|
||||
|
||||
#include <utility>
|
||||
#include <string>
|
||||
|
||||
#include "gtest/gtest-message.h"
|
||||
|
||||
namespace testing {
|
||||
|
||||
// AssertionResult constructors.
|
||||
// Used in EXPECT_TRUE/FALSE(assertion_result).
|
||||
AssertionResult::AssertionResult(const AssertionResult& other)
|
||||
: success_(other.success_),
|
||||
message_(other.message_.get() != nullptr
|
||||
? new ::std::string(*other.message_)
|
||||
: static_cast< ::std::string*>(nullptr)) {}
|
||||
|
||||
// Swaps two AssertionResults.
|
||||
void AssertionResult::swap(AssertionResult& other) {
|
||||
using std::swap;
|
||||
swap(success_, other.success_);
|
||||
swap(message_, other.message_);
|
||||
}
|
||||
|
||||
// Returns the assertion's negation. Used with EXPECT/ASSERT_FALSE.
|
||||
AssertionResult AssertionResult::operator!() const {
|
||||
AssertionResult negation(!success_);
|
||||
if (message_.get() != nullptr) negation << *message_;
|
||||
return negation;
|
||||
}
|
||||
|
||||
// Makes a successful assertion result.
|
||||
AssertionResult AssertionSuccess() {
|
||||
return AssertionResult(true);
|
||||
}
|
||||
|
||||
// Makes a failed assertion result.
|
||||
AssertionResult AssertionFailure() {
|
||||
return AssertionResult(false);
|
||||
}
|
||||
|
||||
// Makes a failed assertion result with the given failure message.
|
||||
// Deprecated; use AssertionFailure() << message.
|
||||
AssertionResult AssertionFailure(const Message& message) {
|
||||
return AssertionFailure() << message;
|
||||
}
|
||||
|
||||
} // namespace testing
|
||||
@ -31,8 +31,6 @@
|
||||
// The Google C++ Testing and Mocking Framework (Google Test)
|
||||
|
||||
#include "gtest/gtest.h"
|
||||
#include "gtest/internal/custom/gtest.h"
|
||||
#include "gtest/gtest-spi.h"
|
||||
|
||||
#include <ctype.h>
|
||||
#include <stdarg.h>
|
||||
@ -54,6 +52,10 @@
|
||||
#include <sstream>
|
||||
#include <vector>
|
||||
|
||||
#include "gtest/gtest-assertion-result.h"
|
||||
#include "gtest/gtest-spi.h"
|
||||
#include "gtest/internal/custom/gtest.h"
|
||||
|
||||
#if GTEST_OS_LINUX
|
||||
|
||||
# include <fcntl.h> // NOLINT
|
||||
@ -1207,44 +1209,6 @@ std::string Message::GetString() const {
|
||||
return internal::StringStreamToString(ss_.get());
|
||||
}
|
||||
|
||||
// AssertionResult constructors.
|
||||
// Used in EXPECT_TRUE/FALSE(assertion_result).
|
||||
AssertionResult::AssertionResult(const AssertionResult& other)
|
||||
: success_(other.success_),
|
||||
message_(other.message_.get() != nullptr
|
||||
? new ::std::string(*other.message_)
|
||||
: static_cast< ::std::string*>(nullptr)) {}
|
||||
|
||||
// Swaps two AssertionResults.
|
||||
void AssertionResult::swap(AssertionResult& other) {
|
||||
using std::swap;
|
||||
swap(success_, other.success_);
|
||||
swap(message_, other.message_);
|
||||
}
|
||||
|
||||
// Returns the assertion's negation. Used with EXPECT/ASSERT_FALSE.
|
||||
AssertionResult AssertionResult::operator!() const {
|
||||
AssertionResult negation(!success_);
|
||||
if (message_.get() != nullptr) negation << *message_;
|
||||
return negation;
|
||||
}
|
||||
|
||||
// Makes a successful assertion result.
|
||||
AssertionResult AssertionSuccess() {
|
||||
return AssertionResult(true);
|
||||
}
|
||||
|
||||
// Makes a failed assertion result.
|
||||
AssertionResult AssertionFailure() {
|
||||
return AssertionResult(false);
|
||||
}
|
||||
|
||||
// Makes a failed assertion result with the given failure message.
|
||||
// Deprecated; use AssertionFailure() << message.
|
||||
AssertionResult AssertionFailure(const Message& message) {
|
||||
return AssertionFailure() << message;
|
||||
}
|
||||
|
||||
namespace internal {
|
||||
|
||||
namespace edit_distance {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user