public virtual void TestCloneAttributes()
{
AttributeSource src = new AttributeSource();
IFlagsAttribute flagsAtt = src.AddAttribute <IFlagsAttribute>();
ITypeAttribute typeAtt = src.AddAttribute <ITypeAttribute>();
flagsAtt.Flags = 1234;
typeAtt.Type = "TestType";
AttributeSource clone = src.CloneAttributes();
IEnumerator <Type> it = clone.GetAttributeClassesEnumerator();
it.MoveNext();
Assert.AreEqual(typeof(IFlagsAttribute), it.Current, "FlagsAttribute must be the first attribute");
it.MoveNext();
Assert.AreEqual(typeof(ITypeAttribute), it.Current, "TypeAttribute must be the second attribute");
Assert.IsFalse(it.MoveNext(), "No more attributes");
IFlagsAttribute flagsAtt2 = clone.GetAttribute <IFlagsAttribute>();
ITypeAttribute typeAtt2 = clone.GetAttribute <ITypeAttribute>();
Assert.AreNotSame(flagsAtt2, flagsAtt, "FlagsAttribute of original and clone must be different instances");
Assert.AreNotSame(typeAtt2, typeAtt, "TypeAttribute of original and clone must be different instances");
Assert.AreEqual(flagsAtt2, flagsAtt, "FlagsAttribute of original and clone must be equal");
Assert.AreEqual(typeAtt2, typeAtt, "TypeAttribute of original and clone must be equal");
// test copy back
flagsAtt2.Flags = 4711;
typeAtt2.Type = "OtherType";
clone.CopyTo(src);
Assert.AreEqual(4711, flagsAtt.Flags, "FlagsAttribute of original must now contain updated term");
Assert.AreEqual(typeAtt.Type, "OtherType", "TypeAttribute of original must now contain updated type");
// verify again:
Assert.AreNotSame(flagsAtt2, flagsAtt, "FlagsAttribute of original and clone must be different instances");
Assert.AreNotSame(typeAtt2, typeAtt, "TypeAttribute of original and clone must be different instances");
Assert.AreEqual(flagsAtt2, flagsAtt, "FlagsAttribute of original and clone must be equal");
Assert.AreEqual(typeAtt2, typeAtt, "TypeAttribute of original and clone must be equal");
}
private void Copy(AttributeSource target, AttributeSource source)
{
if (target != source)
{
source.CopyTo(target);
}
}