public void DefaultInvariant ()
{
CaseInsensitiveHashCodeProvider cih = new CaseInsensitiveHashCodeProvider (
CultureInfo.InvariantCulture);
int h1 = cih.GetHashCode ("Test String");
cih = CaseInsensitiveHashCodeProvider.DefaultInvariant;
int h2 = cih.GetHashCode ("Test String");
Assert.AreEqual (h1, h2, "#1");
CaseInsensitiveHashCodeProvider cih1 = CaseInsensitiveHashCodeProvider.DefaultInvariant;
CaseInsensitiveHashCodeProvider cih2 = CaseInsensitiveHashCodeProvider.DefaultInvariant;
Assert.IsTrue (object.ReferenceEquals (cih1, cih2));
}
public void Default ()
{
CaseInsensitiveHashCodeProvider cih = new CaseInsensitiveHashCodeProvider (
CultureInfo.CurrentCulture);
int h1 = cih.GetHashCode ("Test String");
cih = CaseInsensitiveHashCodeProvider.Default;
int h2 = cih.GetHashCode ("Test String");
Assert.AreEqual (h1, h2, "#1");
Thread.CurrentThread.CurrentCulture = new CultureInfo ("en-US");
CaseInsensitiveHashCodeProvider cih1 = CaseInsensitiveHashCodeProvider.Default;
Thread.CurrentThread.CurrentCulture = new CultureInfo ("nl-BE");
CaseInsensitiveHashCodeProvider cih2 = CaseInsensitiveHashCodeProvider.Default;
Assert.IsFalse (object.ReferenceEquals (cih1, cih2), "#2");
}
public void HashCode ()
{
CaseInsensitiveHashCodeProvider cih = new CaseInsensitiveHashCodeProvider ();
int h1 = cih.GetHashCode ("Test String");
int h2 = cih.GetHashCode ("test string");
int h3 = cih.GetHashCode ("TEST STRING");
Assert.IsTrue (h1 == h2, "Mixed Case != lower case");
Assert.IsTrue (h1 == h3, "Mixed Case != UPPER CASE");
h1 = cih.GetHashCode ("one");
h2 = cih.GetHashCode ("another");
// Actually this is quite possible.
Assert.IsFalse (h1 == h2);
}
public void SerializationRoundtrip ()
{
CaseInsensitiveHashCodeProvider enus = new CaseInsensitiveHashCodeProvider (new CultureInfo ("en-US"));
BinaryFormatter bf = new BinaryFormatter ();
MemoryStream ms = new MemoryStream ();
bf.Serialize (ms, enus);
ms.Position = 0;
CaseInsensitiveHashCodeProvider clone = (CaseInsensitiveHashCodeProvider) bf.Deserialize (ms);
Assert.AreEqual (enus.GetHashCode (String.Empty), clone.GetHashCode (String.Empty), "GetHashCode(string)");
Assert.AreEqual (enus.GetHashCode (Int32.MinValue), clone.GetHashCode (Int32.MinValue), "GetHashCode(int)");
}