public void LazyEqualToShouldThrowIfValueProviderIsNull() { Action action = () => Pattern.EqualTo((Func <int>)null); action.Should().Throw <ArgumentNullException>(); }
public Property LazyEqualToShouldSucceedOnlyOnEqualObjects(string x, string y) => (Equals(x, y) == Pattern.EqualTo(() => y).Match(x).IsSome).ToProperty();