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// Copyright 2020 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/fuchsia_legacymetrics/legacymetrics_user_event_recorder.h"
#include "base/task/single_thread_task_runner.h"
#include "base/test/task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace fuchsia_legacymetrics {
namespace {
class LegacyMetricsUserActionRecorderTest : public testing::Test {
public:
LegacyMetricsUserActionRecorderTest() = default;
~LegacyMetricsUserActionRecorderTest() override = default;
void SetUp() override {
base::SetRecordActionTaskRunner(
base::SingleThreadTaskRunner::GetCurrentDefault());
}
private:
base::test::SingleThreadTaskEnvironment task_environment;
};
TEST_F(LegacyMetricsUserActionRecorderTest, ProduceAndConsume) {
constexpr char kExpectedUserAction1[] = "Hello";
constexpr char kExpectedUserAction2[] = "There";
zx_time_t time_start = base::TimeTicks::Now().ToZxTime();
LegacyMetricsUserActionRecorder buffer;
base::RecordComputedAction(kExpectedUserAction1);
EXPECT_TRUE(buffer.HasEvents());
base::RecordComputedAction(kExpectedUserAction2);
auto events = buffer.TakeEvents();
EXPECT_FALSE(buffer.HasEvents());
EXPECT_EQ(2u, events.size());
// Verify the contents of the buffer are as expected.
EXPECT_EQ(kExpectedUserAction1, events[0].name());
EXPECT_GE(events[0].time(), time_start);
EXPECT_EQ(kExpectedUserAction2, events[1].name());
EXPECT_GE(events[1].time(), time_start);
EXPECT_GE(events[1].time(), events[0].time());
// Verify that the buffer is now empty.
EXPECT_TRUE(buffer.TakeEvents().empty());
// Add more data to the buffer, and then verify it, to ensure that recording
// continues to work.
base::RecordComputedAction(kExpectedUserAction2);
EXPECT_TRUE(buffer.HasEvents());
events = buffer.TakeEvents();
EXPECT_FALSE(buffer.HasEvents());
EXPECT_EQ(1u, events.size());
EXPECT_EQ(kExpectedUserAction2, events[0].name());
}
TEST_F(LegacyMetricsUserActionRecorderTest, RecorderDeleted) {
auto buffer = std::make_unique<LegacyMetricsUserActionRecorder>();
buffer.reset();
// |buffer| was destroyed, so check that recording actions doesn't cause a
// use-after-free error.
base::RecordComputedAction("NoCrashingPlz");
}
TEST_F(LegacyMetricsUserActionRecorderTest, EmptyBuffer) {
LegacyMetricsUserActionRecorder buffer;
EXPECT_FALSE(buffer.HasEvents());
}
TEST_F(LegacyMetricsUserActionRecorderTest, EnforcesMaximumEventCount) {
LegacyMetricsUserActionRecorder buffer;
// Try recording twice the maximum number of locally stored events.
for (int i = 0, count = LegacyMetricsUserActionRecorder::kMaxEventCount * 2;
i < count; i++) {
base::RecordComputedAction("Test");
}
EXPECT_TRUE(buffer.HasEvents());
auto events = buffer.TakeEvents();
EXPECT_EQ(LegacyMetricsUserActionRecorder::kMaxEventCount, events.size());
}
} // namespace
} // namespace fuchsia_legacymetrics
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