public void TestReadOnlyCloneable()
{
var cloneable = new GoodCloneableObject();
Assert.AreNotSame(cloneable, cloneable.Clone());
cloneable.IsReadOnly = true;
Assert.AreSame(cloneable, cloneable.Clone());
var mutableClone = (GoodCloneableObject)cloneable.MutableClone();
Assert.AreNotSame(cloneable, mutableClone);
Assert.DoesNotThrow(() =>
{
mutableClone.SomeProperty = 7;
});
cloneable = new GoodCloneableObject();
var readonlyClone = (GoodCloneableObject)cloneable.ImmutableClone();
Assert.AreNotSame(cloneable, readonlyClone);
cloneable.IsReadOnly = true;
readonlyClone = (GoodCloneableObject)cloneable.ImmutableClone();
Assert.AreSame(cloneable, readonlyClone);
Assert.Throws<InvalidOperationException>(() =>
{
readonlyClone.SomeProperty = 7;
});
}
public void TestGoodCloneable()
{
var goodguy = new GoodCloneableObject();
var goodGuy2 = (GoodCloneableObject)goodguy.Clone();
Assert.AreEqual(goodguy.SomeProperty, goodGuy2.SomeProperty);
}
public void TestReadOnlyMutationCloneable()
{
var cloneable = new GoodCloneableObject {IsReadOnly = true};
Assert.Throws<InvalidOperationException>(() =>
{
cloneable.IsReadOnly = false;
}); // deja-vu...
// This behavior is defined within the test, it's a simple reminder that this behavior
// must be implemented on all Cloneables.
Assert.Throws<InvalidOperationException>(() =>
{
cloneable.SomeProperty = 1;
});
}