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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/metrics/histogram_macros.h"
#include "base/time/time.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
TEST(ScopedHistogramTimer, ThreeTimersOneScope) {
SCOPED_UMA_HISTOGRAM_TIMER_MICROS("TestShortTimer0");
SCOPED_UMA_HISTOGRAM_TIMER_MICROS("TestShortTimer1");
SCOPED_UMA_HISTOGRAM_TIMER("TestTimer0");
SCOPED_UMA_HISTOGRAM_TIMER("TestTimer1");
SCOPED_UMA_HISTOGRAM_LONG_TIMER("TestLongTimer0");
SCOPED_UMA_HISTOGRAM_LONG_TIMER("TestLongTimer1");
}
// Compile tests for UMA_HISTOGRAM_ENUMERATION with the three different types it
// accepts:
// - integral types
// - unscoped enums
// - scoped enums
TEST(HistogramMacro, IntegralPseudoEnumeration) {
UMA_HISTOGRAM_ENUMERATION("Test.FauxEnumeration", 1, 1000);
}
TEST(HistogramMacro, UnscopedEnumeration) {
enum TestEnum : char {
FIRST_VALUE,
SECOND_VALUE,
THIRD_VALUE,
MAX_ENTRIES,
};
UMA_HISTOGRAM_ENUMERATION("Test.UnscopedEnumeration", SECOND_VALUE,
MAX_ENTRIES);
}
TEST(HistogramMacro, ScopedEnumeration) {
enum class TestEnum {
FIRST_VALUE,
SECOND_VALUE,
THIRD_VALUE,
kMaxValue = THIRD_VALUE,
};
UMA_HISTOGRAM_ENUMERATION("Test.ScopedEnumeration", TestEnum::FIRST_VALUE);
enum class TestEnum2 {
FIRST_VALUE,
SECOND_VALUE,
THIRD_VALUE,
MAX_ENTRIES,
};
UMA_HISTOGRAM_ENUMERATION("Test.ScopedEnumeration2", TestEnum2::SECOND_VALUE,
TestEnum2::MAX_ENTRIES);
}
// Compile tests for UMA_HISTOGRAM_ENUMERATION when the value type is:
// - a const reference to an enum
// - a non-const reference to an enum
TEST(HistogramMacro, EnumerationConstRef) {
enum class TestEnum { kValue, kMaxValue = kValue };
const TestEnum& value_ref = TestEnum::kValue;
UMA_HISTOGRAM_ENUMERATION("Test.ScopedEnumeration3", value_ref);
}
TEST(HistogramMacro, EnumerationNonConstRef) {
enum class TestEnum { kValue, kMaxValue = kValue };
TestEnum value = TestEnum::kValue;
TestEnum& value_ref = value;
UMA_HISTOGRAM_ENUMERATION("Test.ScopedEnumeration4", value_ref);
}
} // namespace base
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