public void GetValueAsBytesSucceeds(ContentTestCase @case)
{
byte[] content = GetDummyContent(@case);
var writer = new CborWriter();
writer.WriteByteString(content);
CoseHeaderValue headerValue = CoseHeaderValue.FromEncodedValue(writer.Encode());
AssertExtensions.SequenceEqual(content, headerValue.GetValueAsBytes());
Span <byte> buffer = new byte[content.Length];
int length = headerValue.GetValueAsBytes(buffer);
Assert.Equal(content.Length, length);
AssertExtensions.SequenceEqual(content, buffer);
}
public void FromBytesThrowsBufferTooSmall(ContentTestCase @case)
{
byte[] content = GetDummyContent(@case);
CoseHeaderValue headerValue = CoseHeaderValue.FromBytes(content.AsSpan());
Memory <byte> buffer = new byte[content.Length - 1];
Assert.Throws <ArgumentException>("destination", () => headerValue.GetValueAsBytes(buffer.Span));
}
public void GetValueAsBytesBeingIndefiniteLengthSucceeds(ContentTestCase @case)
{
Verify(0);
Verify(1);
Verify(10);
void Verify(int repetitions)
{
byte[] content = GetDummyContent(@case);
var writer = new CborWriter();
writer.WriteStartIndefiniteLengthByteString();
for (int i = 0; i < repetitions; i++)
{
writer.WriteByteString(content);
}
writer.WriteEndIndefiniteLengthByteString();
int expectedLength = content.Length * repetitions;
CoseHeaderValue headerValue = CoseHeaderValue.FromEncodedValue(writer.Encode());
ReadOnlySpan <byte> result = headerValue.GetValueAsBytes();
Assert.Equal(expectedLength, result.Length);
for (int i = 0; i < expectedLength; i += content.Length)
{
AssertExtensions.SequenceEqual(content, result.Slice(i, content.Length));
}
Span <byte> buffer = new byte[expectedLength];
int length = headerValue.GetValueAsBytes(buffer);
Assert.Equal(expectedLength, length);
for (int i = 0; i < expectedLength; i += content.Length)
{
AssertExtensions.SequenceEqual(content, buffer.Slice(i, content.Length));
}
}
}
public void GetValueAsThrows(byte[] encodedValue, GetValueAs method)
{
CoseHeaderValue headerValue = CoseHeaderValue.FromEncodedValue(encodedValue);
if (method == GetValueAs.Int32)
{
Assert.Throws <InvalidOperationException>(() => headerValue.GetValueAsInt32());
}
else if (method == GetValueAs.String)
{
Assert.Throws <InvalidOperationException>(() => headerValue.GetValueAsString());
}
else if (method == GetValueAs.Bytes)
{
Assert.Throws <InvalidOperationException>(() => headerValue.GetValueAsBytes());
}
else
{
Assert.Equal(GetValueAs.BytesSpan, method);
Memory <byte> buffer = new byte[1024]; // big enough to not throw ArgumentException.
Assert.Throws <InvalidOperationException>(() => headerValue.GetValueAsBytes(buffer.Span));
}
}