public void StreamUtilitiesWithTestStorage_CallSizeAfterCreatingSizedStream_ReturnsExpectedSize()
{
var storage = new TestStorageAccess();
var testPath = @"~/.test_file.dat";
var testSize = 64;
using (var testStream = storage.OpenOrCreate(testPath, testSize))
{
Assert.Equal(testSize, StreamUtilities.FileSize(testPath, storage));
}
}
public void StreamUtilitiesWithTestStorage_CallOpenFileStream_ReturnsValidStream()
{
var storage = new TestStorageAccess();
var testPath = @"~/open_create_path.dat";
using (var stream = StreamUtilities.OpenFileStream(testPath, storage))
{
Assert.True(StreamUtilities.FileExists(testPath, storage));
Assert.NotNull(stream);
}
Assert.False(StreamUtilities.FileExists(testPath, storage));
}
public void StreamUtilitiesWithTestStorage_CallLastWriteTimeUtcAfterWritingToStream_ReturnsReasonableLastWriteTime()
{
var storage = new TestStorageAccess();
var testPath = @"~/test_file_to_write.dat";
using (var stream = StreamUtilities.OpenFileStream(testPath, storage))
{
var beforeWrite = DateTime.UtcNow;
int numBytesToWrite = 128;
for (byte i = 0; i < numBytesToWrite; ++i)
{
stream.WriteByte(i);
}
Assert.Equal(numBytesToWrite, StreamUtilities.FileSize(testPath, storage));
var afterWrite = DateTime.UtcNow;
var lastWrite = StreamUtilities.LastFileWriteTimeUtc(testPath, storage);
Assert.True(lastWrite >= beforeWrite);
Assert.True(lastWrite <= afterWrite);
}
}
public void StreamUtilitiesWithTestStorage_CallLastWriteTimeUtcWithNonexistentPath_ReturnsDefaultDateTime()
{
var storage = new TestStorageAccess();
Assert.Equal(FileNotFoundTime, StreamUtilities.LastFileWriteTimeUtc(@"SomeSillyPathWithNoLastWriteTime", storage));
}
public void StreamUtilitiesWithTestStorage_CallSizeWithNonexistentPath_ThrowsFileNotFoundException()
{
var storage = new TestStorageAccess();
Assert.Throws <FileNotFoundException>(() => StreamUtilities.FileSize(@"SomeBogusPathThatHasNoSize", storage));
}
public void StreamUtilitiesWithTestStorage_CallFileExistsWithNonexistentPath_ReturnsFalse()
{
var storage = new TestStorageAccess();
Assert.False(StreamUtilities.FileExists(@"SomeInvalidPathThatDoesNotExist", storage));
}
