public void ConstructorShould_ReturnInstanceOfAddCountryCommandClass_WhenThePassedValuesAreValid()
        {
            var writerMock = new Mock <IWriter>();
            var command    = new AddTennisDataMenuCommand(writerMock.Object);

            Assert.IsInstanceOf <AddTennisDataMenuCommand>(command);
        }
        public void ExecuteShould_ClearTheScreenOneTIme()
        {
            var writerMock = new Mock <IWriter>();
            var command    = new AddTennisDataMenuCommand(writerMock.Object);

            command.Execute(new List <string>());

            writerMock.Verify(x => x.Clear(), Times.Once);
        }