public void ToDictionary_KeySelector_ElementSelector_With_ValidData_Must_Succeed(int[] source) { // Arrange var list = source.ToList(); var expected = Enumerable .ToDictionary(source, item => item, item => item); // Act var result = ListBindings .ToDictionary(list, item => item, item => item); // Assert _ = result.Must() .BeEnumerableOf <KeyValuePair <int, int> >() .BeEqualTo(expected, testNonGeneric: false); }