public async Task CheckFailsWhenFreeMemoryIsBelowThreshold()
{
// Arrange
var options = new RedisHasFreeMemory.Options
{
RedisFreeMemoryWarningThresholdInBytes = 1024
};
long maxMemory = options.RedisFreeMemoryWarningThresholdInBytes * 10;
long usedMemory = maxMemory - options.RedisFreeMemoryWarningThresholdInBytes + 1;
var redisMemoryUsageMock = new Mock<IRedisMemoryUsage>();
redisMemoryUsageMock
.Setup(x => x.Read())
.ReturnsAsync(usedMemory);
var redisMaxMemoryMock = new Mock<IRedisMaxMemory>();
redisMaxMemoryMock
.Setup(x => x.Read())
.ReturnsAsync(maxMemory);
var check = new RedisHasFreeMemory(redisMemoryUsageMock.Object, redisMaxMemoryMock.Object, options);
// Act
var result = await check.Check();
// Assert
Assert.That(result.Passed, Is.False);
}
public async Task CheckFailsWhenRedisMemoryUsageThrows()
{
// Arrange
var redisMemoryUsageMock = new Mock<IRedisMemoryUsage>();
var exception = new Exception("error message");
redisMemoryUsageMock.Setup(x => x.Read()).ThrowsAsync(exception);
var redisMaxMemoryMock = new Mock<IRedisMaxMemory>();
var check = new RedisHasFreeMemory(redisMemoryUsageMock.Object, redisMaxMemoryMock.Object, new RedisHasFreeMemory.Options());
// Act
var result = await check.Check();
// Assert
Assert.That(result.Passed, Is.False);
Assert.That(result.Output, Is.EqualTo(exception.Message));
}
public async Task CheckPassesWhenThereIsNoUpperLimitOnMemoryUsage()
{
// Arrange
var redisMaxMemoryMock = new Mock<IRedisMaxMemory>();
redisMaxMemoryMock.Setup(x => x.Read()).ReturnsAsync(null);
var redisMemoryUsageMock = new Mock<IRedisMemoryUsage>();
redisMemoryUsageMock.Setup(x => x.Read()).ReturnsAsync(1024);
var check = new RedisHasFreeMemory(redisMemoryUsageMock.Object, redisMaxMemoryMock.Object, new RedisHasFreeMemory.Options());
// Act
var result = await check.Check();
// Assert
Assert.That(result.Passed, Is.True);
}