public void ObjectEquality()
{
IEqualityComparer<IObject> comparer = new ObjectEqualityComparer();
var m1 = new Mock<IObject>(MockBehavior.Strict);
m1.SetupGet(o => o.Id).Returns(1L);
var m2 = new Mock<IObject>(MockBehavior.Strict);
m2.SetupGet(o => o.Id).Returns(2L);
Assert.That(comparer.GetHashCode(null), Is.EqualTo(0));
Assert.That(comparer.GetHashCode(m1.Object), Is.EqualTo(1L));
Assert.That(comparer.Equals(null, null), Is.True);
Assert.That(comparer.Equals(m1.Object, null), Is.False);
Assert.That(comparer.Equals(m1.Object, m2.Object), Is.False);
Assert.That(comparer.Equals(m1.Object, m1.Object), Is.True);
}
// Equals method for the comparer itself.
public override bool Equals(Object obj)
{
ObjectEqualityComparer <T> comparer = obj as ObjectEqualityComparer <T>;
return(comparer != null);
}