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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/test/bind.h"
#include <string>
#include <string_view>
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/location.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace {
// A helper class for MakeExpectedRunClosure() that fails if it is
// destroyed without Run() having been called. This class may be used
// from multiple threads as long as Run() is called at most once
// before destruction.
class RunChecker {
public:
explicit RunChecker(const Location& location,
std::string_view message,
bool is_repeating)
: location_(location), message_(message), is_repeating_(is_repeating) {}
~RunChecker() {
if (!called_) {
ADD_FAILURE_AT(location_.file_name(), location_.line_number())
<< message_;
}
}
void Run() {
DCHECK(is_repeating_ || !called_);
called_ = true;
}
private:
const Location location_;
const std::string message_;
const bool is_repeating_;
bool called_ = false;
};
} // namespace
OnceClosure MakeExpectedRunClosure(const Location& location,
std::string_view message) {
return BindOnce(&RunChecker::Run,
Owned(new RunChecker(location, message, false)));
}
RepeatingClosure MakeExpectedRunAtLeastOnceClosure(const Location& location,
std::string_view message) {
return BindRepeating(&RunChecker::Run,
Owned(new RunChecker(location, message, true)));
}
RepeatingClosure MakeExpectedNotRunClosure(const Location& location,
std::string_view message) {
return BindRepeating(
[](const Location& location, std::string_view message) {
ADD_FAILURE_AT(location.file_name(), location.line_number()) << message;
},
location, std::string(message));
}
} // namespace base
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