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| 1 // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef V8_TESTING_GMOCK_SUPPORT_H_ |
| 6 #define V8_TESTING_GMOCK_SUPPORT_H_ |
| 7 |
| 8 #include "testing/gmock/include/gmock/gmock.h" |
| 9 |
| 10 namespace testing { |
| 11 |
| 12 template <typename T> |
| 13 class Capture { |
| 14 public: |
| 15 Capture() : value_(), has_value_(false) {} |
| 16 |
| 17 const T& value() const { return value_; } |
| 18 bool has_value() const { return has_value_; } |
| 19 |
| 20 void SetValue(const T& value) { |
| 21 DCHECK(!has_value()); |
| 22 value_ = value; |
| 23 has_value_ = true; |
| 24 } |
| 25 |
| 26 private: |
| 27 T value_; |
| 28 bool has_value_; |
| 29 }; |
| 30 |
| 31 |
| 32 namespace internal { |
| 33 |
| 34 template <typename T> |
| 35 class CaptureEqMatcher : public MatcherInterface<T> { |
| 36 public: |
| 37 explicit CaptureEqMatcher(Capture<T>* capture) : capture_(capture) {} |
| 38 |
| 39 virtual void DescribeTo(std::ostream* os) const { |
| 40 *os << "captured by " << static_cast<const void*>(capture_); |
| 41 if (capture_->has_value()) *os << " which has value " << capture_->value(); |
| 42 } |
| 43 |
| 44 virtual bool MatchAndExplain(T value, MatchResultListener* listener) const { |
| 45 if (!capture_->has_value()) { |
| 46 capture_->SetValue(value); |
| 47 return true; |
| 48 } |
| 49 if (value != capture_->value()) { |
| 50 *listener << "which is not equal to " << capture_->value(); |
| 51 return false; |
| 52 } |
| 53 return true; |
| 54 } |
| 55 |
| 56 private: |
| 57 Capture<T>* capture_; |
| 58 }; |
| 59 |
| 60 } // namespace internal |
| 61 |
| 62 |
| 63 // CaptureEq(capture) captures the value passed in during matching as long as it |
| 64 // is unset, and once set, compares the value for equality with the argument. |
| 65 template <typename T> |
| 66 Matcher<T> CaptureEq(Capture<T>* capture) { |
| 67 return MakeMatcher(new internal::CaptureEqMatcher<T>(capture)); |
| 68 } |
| 69 |
| 70 } // namespace testing |
| 71 |
| 72 #endif // V8_TESTING_GMOCK_SUPPORT_H_ |
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