public void NullArgumentShouldThrowArgumentNullExceptionTest(bool hashImplIsNull, bool streamIsNull)
{
// arrange
IImageHash imageHashImplementation = hashImplIsNull ? null : A.Dummy <IImageHash>();
Stream stream = streamIsNull ? null : new MemoryStream();
// act
Action act = () => Sut.Hash(imageHashImplementation, stream);
// assert
act.Should().Throw <ArgumentNullException>();
}
public void HashStreamShouldReadStreamAsImageAndPassDataToHashAlgorithmTest()
{
// arrange
const string filename = "Alyson_Hannigan_500x500_0.jpg";
A.CallTo(() => hashAlgorithm.Hash(A <Image <Rgba32> > ._)).Returns(0UL);
using (var stream = TestHelper.OpenStream(filename))
{
// act
var result = Sut.Hash(hashAlgorithm, stream);
// assert
A.CallTo(() => hashAlgorithm.Hash(A <Image <Rgba32> > ._)).MustHaveHappenedOnceExactly();
result.Should().Be(0UL);
}
}