blob: 5865579641bcaa78604060f2531c001750bf1e03 [file] [log] [blame]
/*
* Copyright 2018 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.
*/
#undef LOG_TAG
#define LOG_TAG "SchedulerUnittests"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <array>
#include "Scheduler/SchedulerUtils.h"
namespace android {
namespace scheduler {
class SchedulerUtilsTest : public testing::Test {
public:
SchedulerUtilsTest() = default;
~SchedulerUtilsTest() override = default;
};
namespace {
TEST_F(SchedulerUtilsTest, calculate_mean) {
std::array<int64_t, 30> testArray{};
// Calling the function on empty array returns 0.
EXPECT_EQ(0, calculate_mean(testArray));
testArray[0] = 33;
EXPECT_EQ(1, calculate_mean(testArray));
testArray[1] = 33;
testArray[2] = 33;
EXPECT_EQ(3, calculate_mean(testArray));
testArray[3] = 42;
EXPECT_EQ(4, calculate_mean(testArray));
testArray[4] = 33;
EXPECT_EQ(5, calculate_mean(testArray));
testArray[5] = 42;
EXPECT_EQ(7, calculate_mean(testArray));
for (int i = 6; i < 30; i++) {
testArray[i] = 33;
}
EXPECT_EQ(33, calculate_mean(testArray));
}
TEST_F(SchedulerUtilsTest, calculate_median) {
std::vector<int64_t> testVector;
// Calling the function on empty vector returns 0.
EXPECT_EQ(0, calculate_median(&testVector));
testVector.push_back(33);
EXPECT_EQ(33, calculate_median(&testVector));
testVector.push_back(33);
testVector.push_back(33);
EXPECT_EQ(33, calculate_median(&testVector));
testVector.push_back(42);
EXPECT_EQ(33, calculate_median(&testVector));
testVector.push_back(33);
EXPECT_EQ(33, calculate_median(&testVector));
testVector.push_back(42);
EXPECT_EQ(33, calculate_median(&testVector));
testVector.push_back(42);
EXPECT_EQ(33, calculate_median(&testVector));
testVector.push_back(42);
EXPECT_EQ(42, calculate_median(&testVector));
testVector.push_back(60);
EXPECT_EQ(42, calculate_median(&testVector));
testVector.push_back(60);
EXPECT_EQ(42, calculate_median(&testVector));
testVector.push_back(33);
EXPECT_EQ(42, calculate_median(&testVector));
testVector.push_back(33);
EXPECT_EQ(42, calculate_median(&testVector));
testVector.push_back(33);
EXPECT_EQ(33, calculate_median(&testVector));
}
TEST_F(SchedulerUtilsTest, calculate_mode) {
std::vector<int64_t> testVector;
// Calling the function on empty vector returns 0.
EXPECT_EQ(0, calculate_mode(testVector));
testVector.push_back(33);
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(33);
testVector.push_back(33);
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(42);
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(33);
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(42);
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(42);
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(42);
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(60);
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(60);
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(33);
// 5 occurences of 33.
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(42);
// 5 occurences of 33, 5 occurences of 42. We choose the first one.
EXPECT_EQ(33, calculate_mode(testVector));
testVector.push_back(42);
// 5 occurences of 33, 6 occurences of 42.
EXPECT_EQ(42, calculate_mode(testVector));
testVector.push_back(42);
// 5 occurences of 33, 7 occurences of 42.
EXPECT_EQ(42, calculate_mode(testVector));
}
} // namespace
} // namespace scheduler
} // namespace android