public void HelloStrategy_Should_WriteHelloMessage() { // Arrange var objectUnderTest = new HelloStrategy(); var inputArgsMock = new string[0]; // Act var result = objectUnderTest.Execute(inputArgsMock); // Assert Assert.IsTrue(result.Success); Assert.IsNotNull(result.OutputMessages); Assert.AreEqual(Constants.HelloString, result.OutputMessages.First().Key); Assert.AreEqual(string.Empty, result.OutputMessages.First().Value); }