public void ExistsT_should_be_callable_indirectly() { using (new IndirectionsContext()) { // Arrange PArray.ExistsOfTTArrayPredicateOfT <int>().Body = (array, match) => true; // Act var actual = Array.Exists(new int[] { 1, 2, 3 }, x => x == 42); // Assert Assert.IsTrue(actual); } }