public void Ctor_Buffer_Success()
{
// Arrange
var input = new byte[] { 0x20, 0x30, 0x40 };
// Act
var secret = new Secret(input);
input[1] = 0xFF; // mutate original array - secret shouldn't be modified
// Assert - length
Assert.Equal(3, secret.Length);
// Assert - managed buffer
var outputSegment = new ArraySegment<byte>(new byte[7], 2, 3);
secret.WriteSecretIntoBuffer(outputSegment);
Assert.Equal(new byte[] { 0x20, 0x30, 0x40 }, outputSegment.AsStandaloneArray());
// Assert - unmanaged buffer
var outputBuffer = new byte[3];
fixed (byte* pOutputBuffer = outputBuffer)
{
secret.WriteSecretIntoBuffer(pOutputBuffer, 3);
}
Assert.Equal(new byte[] { 0x20, 0x30, 0x40 }, outputBuffer);
}
public void Ctor_Buffer_ZeroLength_Success()
{
// Act
var secret = new Secret(new byte[0]);
// Assert - none of these methods should throw
Assert.Equal(0, secret.Length);
secret.WriteSecretIntoBuffer(new ArraySegment<byte>(new byte[0]));
byte dummy;
secret.WriteSecretIntoBuffer(&dummy, 0);
}