public void PaddedStream_SeekingWorks()
{
PaddedStream paddedStream = new PaddedStream(
new MemoryStream(Enumerable.Range(0, 20).Select(i => (byte)i).ToArray())
{
Position = 0
},
0,
30);
MemoryStream ouputStream = new MemoryStream();
paddedStream.CopyTo(ouputStream);
Assert.AreEqual(paddedStream.Length, paddedStream.Position);
CollectionAssert.AreEqual(
Enumerable.Range(0, 20).Select(i => (byte)i).Concat(Enumerable.Repeat((byte)0, 30)).ToArray(),
ouputStream.ToArray());
paddedStream.Position = 10;
Assert.AreEqual(10, paddedStream.Position);
ouputStream = new MemoryStream();
paddedStream.CopyTo(ouputStream);
CollectionAssert.AreEqual(
Enumerable.Range(10, 10).Select(i => (byte)i).Concat(Enumerable.Repeat((byte)0, 30)).ToArray(),
ouputStream.ToArray());
paddedStream.Position = 20;
Assert.AreEqual(20, paddedStream.Position);
ouputStream = new MemoryStream();
paddedStream.CopyTo(ouputStream);
CollectionAssert.AreEqual(
Enumerable.Repeat((byte)0, 30).ToArray(),
ouputStream.ToArray());
}
public void PaddedStream_PadsInnerStreamData(byte[] data, byte paddingValue, int paddingLength)
{
PaddedStream paddedStream = new PaddedStream(new MemoryStream(data)
{
Position = 0
}, paddingValue, paddingLength);
Assert.AreEqual(0, paddedStream.Position);
Assert.AreEqual(data.Length + paddingLength, paddedStream.Length);
MemoryStream ouputStream = new MemoryStream();
paddedStream.CopyTo(ouputStream);
Assert.AreEqual(paddedStream.Length, paddedStream.Position);
CollectionAssert.AreEqual(
data.Concat(Enumerable.Repeat(paddingValue, paddingLength)).ToArray(),
ouputStream.ToArray());
}