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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/feed/core/v2/test/test_util.h"
#include <string_view>
#include "base/logging.h"
#include "base/run_loop.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/task/sequenced_task_runner.h"
#include "base/test/bind.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace feed {
std::string TrimLines(std::string_view text) {
auto lines = base::SplitString(text, "\n", base::TRIM_WHITESPACE,
base::SPLIT_WANT_NONEMPTY);
return base::JoinString(lines, "\n");
}
void RunLoopUntil(base::RepeatingCallback<bool()> criteria,
const std::string& failure_message) {
RunLoopUntil(criteria,
base::BindLambdaForTesting([&]() { return failure_message; }));
}
void RunLoopUntil(base::RepeatingCallback<bool()> criteria,
base::OnceCallback<std::string()> failure_message_callback) {
if (criteria.Run())
return;
constexpr int kMaxIterations = 1000;
int iteration = 0;
base::RunLoop run_loop;
base::RepeatingClosure check_conditions_callback;
auto schedule_check = [&]() {
base::SequencedTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, check_conditions_callback);
};
check_conditions_callback = base::BindLambdaForTesting([&]() {
if (criteria.Run() || ++iteration > kMaxIterations) {
run_loop.QuitClosure().Run();
ASSERT_LE(iteration, kMaxIterations)
<< "RunLoopUntil criteria still not true after max iteration count:"
<< std::move(failure_message_callback).Run();
} else {
schedule_check();
}
});
schedule_check();
run_loop.Run();
}
} // namespace feed
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