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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/test/logging_timer.h"
#include "base/test/simple_test_tick_clock.h"
#include "base/time/time.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace extensions {
namespace {
// Shorthand.
const auto& GetMS = base::Milliseconds<int>;
} // namespace
class LoggingTimerTest : public testing::Test {
public:
LoggingTimerTest() {}
LoggingTimerTest(const LoggingTimerTest&) = delete;
LoggingTimerTest& operator=(const LoggingTimerTest&) = delete;
~LoggingTimerTest() override {}
void SetUp() override { LoggingTimer::set_clock_for_testing(&tick_clock_); }
void TearDown() override { LoggingTimer::set_clock_for_testing(nullptr); }
// Creates a LoggingTimer for the |key|, and advanced the clock by
// |elapsed|.
void KillTime(base::TimeDelta elapsed, const char* key) {
LoggingTimer timer(key);
tick_clock_.Advance(elapsed);
}
private:
base::SimpleTestTickClock tick_clock_;
};
TEST_F(LoggingTimerTest, TestIncrements) {
constexpr char key[] = "test_increments";
EXPECT_TRUE(LoggingTimer::GetTrackedTime(key).is_zero());
KillTime(GetMS(10), key);
base::TimeDelta time1 = LoggingTimer::GetTrackedTime(key);
EXPECT_EQ(GetMS(10), time1);
KillTime(GetMS(10), key);
base::TimeDelta time2 = LoggingTimer::GetTrackedTime(key);
EXPECT_EQ(GetMS(20), time2);
}
TEST_F(LoggingTimerTest, TestMultipleKeys) {
constexpr char key1[] = "key1";
constexpr char key2[] = "key2";
// Timers are grouped by pointer equality, so key3 should be separate
// (despite having the same name as key1).
constexpr char key3[] = "key1";
EXPECT_TRUE(LoggingTimer::GetTrackedTime(key1).is_zero());
EXPECT_TRUE(LoggingTimer::GetTrackedTime(key2).is_zero());
EXPECT_TRUE(LoggingTimer::GetTrackedTime(key3).is_zero());
KillTime(GetMS(10), key1);
EXPECT_EQ(GetMS(10), LoggingTimer::GetTrackedTime(key1));
EXPECT_TRUE(LoggingTimer::GetTrackedTime(key2).is_zero());
EXPECT_TRUE(LoggingTimer::GetTrackedTime(key3).is_zero());
KillTime(GetMS(10), key1);
EXPECT_EQ(GetMS(20), LoggingTimer::GetTrackedTime(key1));
EXPECT_TRUE(LoggingTimer::GetTrackedTime(key2).is_zero());
EXPECT_TRUE(LoggingTimer::GetTrackedTime(key3).is_zero());
KillTime(GetMS(10), key2);
EXPECT_EQ(GetMS(20), LoggingTimer::GetTrackedTime(key1));
EXPECT_EQ(GetMS(10), LoggingTimer::GetTrackedTime(key2));
EXPECT_TRUE(LoggingTimer::GetTrackedTime(key3).is_zero());
KillTime(GetMS(5), key3);
EXPECT_EQ(GetMS(20), LoggingTimer::GetTrackedTime(key1));
EXPECT_EQ(GetMS(10), LoggingTimer::GetTrackedTime(key2));
EXPECT_EQ(GetMS(5), LoggingTimer::GetTrackedTime(key3));
}
} // namespace extensions
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