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[ci skip] Add additional Stream tests

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Oliver Booth 2022-04-23 11:38:20 +01:00
parent 68d1ea6f4d
commit 76191cb43a
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@ -56,4 +56,136 @@ public class StreamTests
Assert.AreEqual(expectedHash.Length, bytesWritten);
CollectionAssert.AreEqual(expectedHash, hash.ToArray());
}
[TestMethod]
public void NonReadableStreamShouldThrow()
{
Assert.ThrowsException<IOException>(() =>
{
using var stream = new DummyStream();
stream.GetHash<SHA1>();
});
Assert.ThrowsException<IOException>(() =>
{
using var stream = new DummyStream();
stream.TryWriteHash<SHA1>(Span<byte>.Empty, out _);
});
}
[TestMethod]
public void LargeStreamShouldThrow()
{
Assert.ThrowsException<ArgumentException>(() =>
{
using var stream = new DummyStream(true);
stream.TryWriteHash<SHA1>(Span<byte>.Empty, out _);
});
}
[TestMethod]
public void NullCreateMethodShouldThrow()
{
Assert.ThrowsException<TypeInitializationException>(() => Stream.Null.GetHash<HashAlgorithmTestClass>());
Assert.ThrowsException<TypeInitializationException>(() =>
Stream.Null.TryWriteHash<HashAlgorithmTestClass>(Span<byte>.Empty, out _));
}
[TestMethod]
public void NoCreateMethodShouldThrow()
{
Assert.ThrowsException<TypeInitializationException>(() => Stream.Null.GetHash<HashAlgorithmTestClassNoCreateMethod>());
Assert.ThrowsException<TypeInitializationException>(() =>
Stream.Null.TryWriteHash<HashAlgorithmTestClassNoCreateMethod>(Span<byte>.Empty, out _));
}
private class DummyStream : Stream
{
public DummyStream(bool readable = false)
{
CanRead = readable;
CanSeek = readable;
CanWrite = readable;
}
public override void Flush()
{
}
public override int Read(byte[] buffer, int offset, int count)
{
return 0;
}
public override long Seek(long offset, SeekOrigin origin)
{
return 0;
}
public override void SetLength(long value)
{
}
public override void Write(byte[] buffer, int offset, int count)
{
}
public override bool CanRead { get; }
public override bool CanSeek { get; }
public override bool CanWrite { get; }
public override long Length
{
get => long.MaxValue;
}
public override long Position
{
get => 0;
set { }
}
}
private class HashAlgorithmTestClass : HashAlgorithm
{
public static new HashAlgorithmTestClass? Create()
{
return null;
}
protected override void HashCore(byte[] array, int ibStart, int cbSize)
{
throw new NotImplementedException();
}
protected override byte[] HashFinal()
{
throw new NotImplementedException();
}
public override void Initialize()
{
throw new NotImplementedException();
}
}
private class HashAlgorithmTestClassNoCreateMethod : HashAlgorithm
{
protected override void HashCore(byte[] array, int ibStart, int cbSize)
{
throw new NotImplementedException();
}
protected override byte[] HashFinal()
{
throw new NotImplementedException();
}
public override void Initialize()
{
throw new NotImplementedException();
}
}
}