public void It_should_throw_if_buffers_differ_in_length()
{
var left = new byte[] { 0x01, 0x02, 0x03, 0x04 };
var right = new byte[] { 0x01, 0x02, 0x03 };
Assert.ThrowsException <ArgumentException>(() => SecurityExtensions.Xor(left, right));
}
public void It_should_overwrite_the_contents_of_the_first_array()
{
var left = new byte[] { 0x00, 0x01, 0x02, 0x03 };
var right = new byte[] { 0x1, 0x02, 0x03, 0x04 };
var result = SecurityExtensions.Xor(left, right);
Assert.AreSame(left, result);
}
public void It_should_xor_each_byte_of_the_arrays_to_produce_a_new_byte(string left, string right, string result)
{
var leftBuffer = StringToByteArray(left);
var rightBuffer = StringToByteArray(right);
var expected = StringToByteArray(result);
var actual = SecurityExtensions.Xor(leftBuffer, rightBuffer);
CollectionAssert.AreEqual(expected, actual.ToArray());
}
public void It_should_throw_if_values_are_null()
{
Assert.ThrowsException <ArgumentNullException>(() => SecurityExtensions.Xor(null, new byte[1]));
Assert.ThrowsException <ArgumentNullException>(() => SecurityExtensions.Xor(new byte[1], null));
}