public void ShouldNotProcess_WhenInputStreamIsNull()
{
var args = new OptimizerArgs(null);
var processor = new TestOptimizerProcessor(optimizerArgs => { throw new Exception(); });
processor.Process(args); // would throw if body called
}
public void ShouldNotProcess_WhenInputStreamIsDisposed()
{
var stream = new MemoryStream();
var args = new OptimizerArgs(stream);
stream.Dispose();
var processor = new TestOptimizerProcessor(optimizerArgs => { throw new Exception(); });
processor.Process(args); // would throw if body called
}
public void ShouldDisposeStreams_WhenProcessorThrowsException()
{
var stream = new MemoryStream(new byte[] { 12 });
var args = new OptimizerArgs(stream);
var processor = new TestOptimizerProcessor(optimizerArgs => { throw new Exception(); });
try
{
processor.Process(args);
}
catch
{
stream.CanRead.Should().BeFalse();
}
}
public void ShouldReturnOriginalStream_WhenOptimizedIsLonger()
{
var stream = new MemoryStream(new byte[] { 12 });
var args = new OptimizerArgs(stream);
var processor = new TestOptimizerProcessor(optimizerArgs =>
{
optimizerArgs.Stream.Close();
optimizerArgs.Stream = new MemoryStream(new byte[] { 13, 14 }); // note longer than input stream
});
processor.Process(args);
args.Stream.Length.Should().Be(1);
args.GetMessages().Length.Should().Be(1);
args.Stream.Dispose();
}
public void ShouldReturnStream_AtPositionZero()
{
var stream = new MemoryStream(new byte[] { 12, 13, 14 });
var args = new OptimizerArgs(stream);
var processor = new TestOptimizerProcessor(optimizerArgs =>
{
optimizerArgs.Stream.Close();
optimizerArgs.Stream = new MemoryStream(new byte[] { 13, 14 }); // need to return a shorter stream or it will get tripped
optimizerArgs.Stream.Seek(0, SeekOrigin.End); // seek return stream to the end intentionally
});
processor.Process(args);
args.Stream.Position.Should().Be(0);
args.Stream.Dispose();
}