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/*
* Copyright 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "metrics/counter_metrics.h"
#include <unordered_map>
#include "gtest/gtest.h"
namespace bluetooth {
namespace metrics {
namespace {
class CounterMetricsTest : public ::testing::Test {
public:
class TestableCounterMetrics : public CounterMetrics {
public:
void DrainBuffer() {
DrainBufferedCounters();
}
std::unordered_map<int32_t, int64_t> test_counters_;
private:
void WriteCounter(int32_t key, int64_t count) override {
test_counters_[key] = count;
}
bool IsInitialized() override {
return true;
}
};
TestableCounterMetrics testable_counter_metrics_;
};
TEST_F(CounterMetricsTest, normal_case) {
ASSERT_TRUE(testable_counter_metrics_.Count(1, 2));
ASSERT_TRUE(testable_counter_metrics_.Count(1, 3));
ASSERT_TRUE(testable_counter_metrics_.Count(2, 4));
testable_counter_metrics_.DrainBuffer();
ASSERT_EQ(testable_counter_metrics_.test_counters_[1], 5);
ASSERT_EQ(testable_counter_metrics_.test_counters_[2], 4);
}
TEST_F(CounterMetricsTest, multiple_drain) {
ASSERT_TRUE(testable_counter_metrics_.Count(1, 2));
ASSERT_TRUE(testable_counter_metrics_.Count(1, 3));
ASSERT_TRUE(testable_counter_metrics_.Count(2, 4));
testable_counter_metrics_.DrainBuffer();
ASSERT_EQ(testable_counter_metrics_.test_counters_[1], 5);
ASSERT_EQ(testable_counter_metrics_.test_counters_[2], 4);
testable_counter_metrics_.test_counters_.clear();
ASSERT_TRUE(testable_counter_metrics_.Count(1, 20));
ASSERT_TRUE(testable_counter_metrics_.Count(1, 30));
ASSERT_TRUE(testable_counter_metrics_.Count(2, 40));
ASSERT_TRUE(testable_counter_metrics_.Count(3, 100));
testable_counter_metrics_.DrainBuffer();
ASSERT_EQ(testable_counter_metrics_.test_counters_[1], 50);
ASSERT_EQ(testable_counter_metrics_.test_counters_[2], 40);
ASSERT_EQ(testable_counter_metrics_.test_counters_[3], 100);
}
TEST_F(CounterMetricsTest, overflow) {
ASSERT_TRUE(testable_counter_metrics_.Count(1, LLONG_MAX));
ASSERT_FALSE(testable_counter_metrics_.Count(1, 1));
ASSERT_FALSE(testable_counter_metrics_.Count(1, 2));
testable_counter_metrics_.DrainBuffer();
ASSERT_EQ(testable_counter_metrics_.test_counters_[1], LLONG_MAX);
}
TEST_F(CounterMetricsTest, non_positive) {
ASSERT_TRUE(testable_counter_metrics_.Count(1, 5));
ASSERT_FALSE(testable_counter_metrics_.Count(1, 0));
ASSERT_FALSE(testable_counter_metrics_.Count(1, -1));
testable_counter_metrics_.DrainBuffer();
ASSERT_EQ(testable_counter_metrics_.test_counters_[1], 5);
}
} // namespace
} // namespace metrics
} // namespace bluetooth
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