public void RefractObjectsReturnsCorrectResult(object[] objects)
        {
            var sut = new ReflectionElementRefraction <object>();

            var actual = sut.Refract(objects);

            var expected = objects.OfType <IReflectionElement>();

            Assert.Equal(expected, actual);
        }
        public void RefractNullSourceThrows()
        {
            var sut = new ReflectionElementRefraction <object>();

            Assert.Throws <ArgumentNullException>(() => sut.Refract(null));
        }
        public void SutIsReflectionElementRefraction()
        {
            var sut = new ReflectionElementRefraction <object>();

            Assert.IsAssignableFrom <IReflectionElementRefraction <object> >(sut);
        }