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/*
* Copyright 2024 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef TEST_WAIT_UNTIL_INTERNAL_H_
#define TEST_WAIT_UNTIL_INTERNAL_H_
#include <string>
#include "absl/base/nullability.h"
#include "absl/strings/string_view.h"
#include "test/gmock.h"
#include "test/gtest.h"
namespace webrtc {
namespace wait_until_internal {
// Explains the match result of `matcher` against `value` to `listener`.
// `value_name` is the name of the value to be used in the error message.
// This is inspired by testing::ExplainMatchResult and
// testing::internal::MatchPrintAndExplain.
template <typename T, typename M>
bool ExplainMatchResult(
const M& matcher,
const T& value,
absl::Nonnull<::testing::StringMatchResultListener*> listener,
absl::string_view value_name) {
// SafeMatcherCast is required for matchers whose type does not match the
// argument type.
::testing::Matcher<const T&> safe_matcher =
::testing::SafeMatcherCast<const T&>(matcher);
auto* ss = listener->stream();
*ss << "Value of: " << value_name << "\n";
*ss << "Expected: ";
safe_matcher.DescribeTo(ss);
*ss << "\nActual: ";
::testing::StringMatchResultListener inner_listener;
if (::testing::ExplainMatchResult(safe_matcher, value, &inner_listener)) {
return true;
}
*ss << ::testing::PrintToString(value);
if (const std::string& inner_message = inner_listener.str();
!inner_message.empty()) {
*ss << ", " << inner_message;
}
return false;
}
} // namespace wait_until_internal
} // namespace webrtc
#endif // TEST_WAIT_UNTIL_INTERNAL_H_
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