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using System;
using System.Security.Cryptography;
using NUnit.Framework;
using TagLib;
namespace TagLib.Tests.Collections
{
[TestFixture]
public class ByteVectorTest
{
private static readonly string TestInput = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
private static readonly ByteVector TestVector = ByteVector.FromString(TestInput, StringType.UTF8);
[Test]
public void Length()
{
Assert.AreEqual(TestInput.Length, TestVector.Count);
}
[Test]
public void StartsWith()
{
Assert.IsTrue(TestVector.StartsWith("ABCDE"));
Assert.IsFalse(TestVector.StartsWith("NOOP"));
}
[Test]
public void EndsWith()
{
Assert.IsTrue(TestVector.EndsWith("UVWXYZ"));
Assert.IsFalse(TestVector.EndsWith("NOOP"));
}
[Test]
public void ContainsAt()
{
Assert.IsTrue(TestVector.ContainsAt("JKLMNO", 9));
Assert.IsFalse(TestVector.ContainsAt("NOOP", 30));
}
[Test]
public void Find()
{
Assert.AreEqual(17, TestVector.Find("RSTUV"));
Assert.AreEqual(-1, TestVector.Find("NOOP"));
}
[Test]
public void RFind()
{
Assert.AreEqual(6, TestVector.RFind("GHIJ"));
Assert.AreEqual(-1, TestVector.RFind("NOOP"));
}
[Test]
public void Mid()
{
Assert.AreEqual(ByteVector.FromString("KLMNOPQRSTUVWXYZ", StringType.UTF8), TestVector.Mid(10));
Assert.AreEqual(ByteVector.FromString("PQRSTU", StringType.UTF8), TestVector.Mid(15, 6));
}
[Test]
public void CopyResize()
{
ByteVector a = new ByteVector(TestVector);
ByteVector b = ByteVector.FromString("ABCDEFGHIJKL", StringType.UTF8);
a.Resize(12);
Assert.AreEqual(b, a);
Assert.AreEqual( b.ToString(), a.ToString());
Assert.IsFalse(a.Count == TestVector.Count);
}
[Test]
public void UInt()
{
Assert.AreEqual(UInt32.MaxValue, ByteVector.FromUInt(UInt32.MaxValue).ToUInt());
Assert.AreEqual(UInt32.MinValue, ByteVector.FromUInt(UInt32.MinValue).ToUInt());
Assert.AreEqual(0, ByteVector.FromUInt(0).ToUInt());
Assert.AreEqual(30292, ByteVector.FromUInt(30292).ToUInt());
}
[Test]
public void Long()
{
Assert.AreEqual(UInt64.MaxValue, ByteVector.FromULong(UInt64.MaxValue).ToULong());
Assert.AreEqual(UInt64.MinValue, ByteVector.FromULong(UInt64.MinValue).ToULong());
Assert.AreEqual(0, ByteVector.FromULong(0).ToULong());
Assert.AreEqual(30292, ByteVector.FromULong(30292).ToULong());
}
[Test]
public void Short()
{
Assert.AreEqual(UInt16.MaxValue, ByteVector.FromUShort(UInt16.MaxValue).ToUShort());
Assert.AreEqual(UInt16.MinValue, ByteVector.FromUShort(UInt16.MinValue).ToUShort());
Assert.AreEqual(0, ByteVector.FromUShort(0).ToUShort());
Assert.AreEqual(8009, ByteVector.FromUShort(8009).ToUShort());
}
[Test]
public void FromUri()
{
ByteVector vector = ByteVector.FromPath("samples/vector.bin");
Assert.AreEqual(3282169185, vector.Checksum);
Assert.AreEqual("1aaa46c484d70c7c80510a5f99e7805d", MD5Hash(vector.Data));
}
[Test]
[Ignore("Skip performance testing")]
public void OperatorAdd()
{
using(new CodeTimer("Operator Add")) {
ByteVector vector = new ByteVector();
for(int i = 0; i < 10000; i++) {
vector += ByteVector.FromULong((ulong)55);
}
}
using(new CodeTimer("Function Add")) {
ByteVector vector = new ByteVector();
for(int i = 0; i < 10000; i++) {
vector.Add(ByteVector.FromULong((ulong)55));
}
}
}
[Test]
public void CommentsFrameError ()
{
// http://bugzilla.gnome.org/show_bug.cgi?id=582735
// Comments data found in the wild
ByteVector vector = new ByteVector (
1, 255, 254, 73, 0, 68, 0, 51, 0, 71, 0, 58, 0, 32, 0, 50, 0, 55, 0, 0, 0);
var encoding = (StringType) vector [0];
var language = vector.ToString (StringType.Latin1, 1, 3);
var split = vector.ToStrings (encoding, 4, 3);
Assert.AreEqual (2, split.Length);
}
private static string MD5Hash(byte [] bytes)
{
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
byte [] hash_bytes = md5.ComputeHash(bytes);
string hash_string = String.Empty;
for(int i = 0; i < hash_bytes.Length; i++) {
hash_string += Convert.ToString(hash_bytes[i], 16).PadLeft(2, '0');
}
return hash_string.PadLeft(32, '0');
}
}
}
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