This source file includes following definitions.
- TEST
- TEST
- TEST
#include "remoting/base/running_average.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace remoting {
static const int64 kTestValues[] = { 10, 20, 30, 10, 25, 16, 15 };
TEST(RunningAverageTest, OneElementWindow) {
RunningAverage running_average(1);
EXPECT_EQ(0, running_average.Average());
for (size_t i = 0; i < arraysize(kTestValues); ++i) {
running_average.Record(kTestValues[i]);
EXPECT_EQ(static_cast<double>(kTestValues[i]), running_average.Average());
}
}
TEST(RunningAverageTest, TwoElementWindow) {
RunningAverage running_average(2);
EXPECT_EQ(0, running_average.Average());
for (size_t i = 0; i < arraysize(kTestValues); ++i) {
running_average.Record(kTestValues[i]);
double expected = kTestValues[i];
if (i > 0)
expected = (expected + kTestValues[i-1]) / 2;
EXPECT_EQ(expected, running_average.Average());
}
}
TEST(RunningAverageTest, LongWindow) {
RunningAverage running_average(arraysize(kTestValues) + 1);
EXPECT_EQ(0, running_average.Average());
for (size_t i = 0; i < arraysize(kTestValues); ++i) {
running_average.Record(kTestValues[i]);
double expected = 0.0;
for (size_t j = 0; j <= i; ++j)
expected += kTestValues[j];
expected /= i + 1;
EXPECT_EQ(expected, running_average.Average());
}
}
}