public void SignatureReader_ReadsRandomData_ThrowsException()
{
// Arrange
var signatureData = new byte[1458];
new Random().NextBytes(signatureData);
var signatureStream = new MemoryStream(signatureData);
var progressReporter = Substitute.For <IProgress <ProgressReport> >();
// Act
var target = new SignatureReader(signatureStream, progressReporter);
// Assert
Assert.Throws <InvalidDataException>(() => target.ReadSignature());
}