d4fd79a434
BUG=v8:3835 LOG=n Review URL: https://codereview.chromium.org/881653003 Cr-Commit-Position: refs/heads/master@{#26282}
92 lines
2.3 KiB
C++
92 lines
2.3 KiB
C++
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_TESTING_GMOCK_SUPPORT_H_
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#define V8_TESTING_GMOCK_SUPPORT_H_
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#include <cmath>
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#include <cstring>
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#include <string>
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#include "testing/gmock/include/gmock/gmock.h"
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namespace testing {
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template <typename T>
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class Capture {
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public:
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Capture() : value_(), has_value_(false) {}
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const T& value() const { return value_; }
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bool has_value() const { return has_value_; }
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void SetValue(const T& value) {
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DCHECK(!has_value());
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value_ = value;
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has_value_ = true;
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}
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private:
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T value_;
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bool has_value_;
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};
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namespace internal {
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template <typename T>
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class CaptureEqMatcher : public MatcherInterface<T> {
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public:
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explicit CaptureEqMatcher(Capture<T>* capture) : capture_(capture) {}
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virtual void DescribeTo(std::ostream* os) const {
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*os << "captured by " << static_cast<const void*>(capture_);
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if (capture_->has_value()) *os << " which has value " << capture_->value();
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}
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virtual bool MatchAndExplain(T value, MatchResultListener* listener) const {
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if (!capture_->has_value()) {
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capture_->SetValue(value);
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return true;
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}
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if (value != capture_->value()) {
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*listener << "which is not equal to " << capture_->value();
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return false;
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}
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return true;
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}
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private:
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Capture<T>* capture_;
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};
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} // namespace internal
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// Creates a polymorphic matcher that matches anything whose bit representation
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// is equal to that of {x}.
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MATCHER_P(BitEq, x, std::string(negation ? "isn't" : "is") +
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" bitwise equal to " + PrintToString(x)) {
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static_assert(sizeof(x) == sizeof(arg), "Size mismatch");
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return std::memcmp(&arg, &x, sizeof(x)) == 0;
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}
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// CaptureEq(capture) captures the value passed in during matching as long as it
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// is unset, and once set, compares the value for equality with the argument.
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template <typename T>
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inline Matcher<T> CaptureEq(Capture<T>* capture) {
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return MakeMatcher(new internal::CaptureEqMatcher<T>(capture));
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}
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// Creates a polymorphic matcher that matches any floating point NaN value.
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MATCHER(IsNaN, std::string(negation ? "isn't" : "is") + " not a number") {
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return std::isnan(arg);
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}
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} // namespace testing
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#endif // V8_TESTING_GMOCK_SUPPORT_H_
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