public void MemorySpaceCheckTest()
{
long maxStorageValue = 6 * 1024 * 1024;
Option <long> maxStorageSize = Option.Some(maxStorageValue);
MemorySpaceChecker memorySpaceChecker = new MemorySpaceChecker(() => 5 * 1024 * 1024L);
Assert.False(memorySpaceChecker.IsFull);
memorySpaceChecker.SetMaxSizeBytes(maxStorageSize);
Assert.Equal(MemoryUsageStatus.Unknown, memorySpaceChecker.UsageStatus);
Assert.False(memorySpaceChecker.IsFull);
// Memory status should be 'Available' after calling 'IsFull'
Assert.Equal(MemoryUsageStatus.Available, memorySpaceChecker.UsageStatus);
memorySpaceChecker.SetStorageUsageComputer(() => maxStorageValue);
Assert.True(memorySpaceChecker.IsFull);
long newStorageValue = 8 * 1024 * 1024;
Option <long> newStorageSize = Option.Some(newStorageValue);
memorySpaceChecker.SetMaxSizeBytes(newStorageSize);
Assert.False(memorySpaceChecker.IsFull);
Assert.Equal(MemoryUsageStatus.Available, memorySpaceChecker.UsageStatus);
memorySpaceChecker.SetStorageUsageComputer(() => (long)(newStorageValue * 0.95));
Assert.False(memorySpaceChecker.IsFull);
Assert.Equal(MemoryUsageStatus.Critical, memorySpaceChecker.UsageStatus);
}
public void InvalidInputTest()
{
Assert.Throws <ArgumentNullException>(() => new MemorySpaceChecker(null));
MemorySpaceChecker memorySpaceChecker = new MemorySpaceChecker(() => 5 * 1024 * 1024L);
Assert.Throws <ArgumentNullException>(() => memorySpaceChecker.SetStorageUsageComputer(null));
}