public void Equals_DifferentPropertyValues_ShouldReturnFalse()
{
var a = new DerAsnLength(543);
var b = new DerAsnLength(544);
Assert.That(a.Equals(b), Is.False);
}
public void Equals_EqualPropertyValues_ShouldReturnTrue()
{
var a = new DerAsnLength(543);
var b = new DerAsnLength(543);
Assert.That(a.Equals(b), Is.True);
}
public void Encode_ShortForm_ShouldEncodeCorrectly()
{
var length = new DerAsnLength(20);
var result = length.Encode();
Assert.That(result, Is.EqualTo(new byte[] { 0x14 }));
length = new DerAsnLength(127);
result = length.Encode();
Assert.That(result, Is.EqualTo(new byte[] { 0x7F }));
}
public void Decode_ShortForm_ShouldDecodeCorrectly()
{
var data = new Queue <byte>();
data.Enqueue(0x14);
var length = DerAsnLength.Decode(data);
Assert.That(data, Is.Empty);
Assert.That(length.Length, Is.EqualTo(20));
data.Enqueue(0x7F);
length = DerAsnLength.Decode(data);
Assert.That(data, Is.Empty);
Assert.That(length.Length, Is.EqualTo(127));
}
public void Encode_LongForm_ShouldEncodeCorrectly()
{
var length = new DerAsnLength(128);
var result = length.Encode();
Assert.That(result, Is.EqualTo(new byte[] { 0x81, 0x80 }));
length = new DerAsnLength(201);
result = length.Encode();
Assert.That(result, Is.EqualTo(new byte[] { 0x81, 0xC9 }));
length = new DerAsnLength(123456);
result = length.Encode();
Assert.That(result, Is.EqualTo(new byte[] { 0x83, 0x01, 0xE2, 0x40 }));
}
public void Decode_LongForm_ShouldDecodeCorrectly()
{
var data = new Queue <byte>();
data.Enqueue(0x81); data.Enqueue(0x80);
var length = DerAsnLength.Decode(data);
Assert.That(data, Is.Empty);
Assert.That(length.Length, Is.EqualTo(128));
data.Enqueue(0x81); data.Enqueue(0xC9);
length = DerAsnLength.Decode(data);
Assert.That(data, Is.Empty);
Assert.That(length.Length, Is.EqualTo(201));
data.Enqueue(0x83); data.Enqueue(0x01); data.Enqueue(0xE2); data.Enqueue(0x40);
length = DerAsnLength.Decode(data);
Assert.That(data, Is.Empty);
Assert.That(length.Length, Is.EqualTo(123456));
}
public void Constructor_ShouldSetProperties()
{
var length = new DerAsnLength(666);
Assert.That(length.Length, Is.EqualTo(666));
}
public void Decode_NotEnoughBytes_ShouldThrowInvalidOperationException()
{
var data = new Queue <byte>(new byte[] { 0x83, 0x81, 0xE2 });
Assert.Throws <InvalidOperationException>(() => DerAsnLength.Decode(data));
}
