Moq练习

本文参考

http://www.cnblogs.com/haogj/archive/2011/06/24/2088788.html

Moq适合于TDD的项目，小项目初期应该不太适合使用，有些浪费时间了！

NuGet 分别添加 NUnit 和 Moq

install-package nunit -project 测试项目名称

install-package moq -project 测试项目名称

public class Person
    {
        public string Id;
        public string FirstName;
        public string LastName;
        public Person(string newId, string fn, string ln)
        {
            Id = newId;
            FirstName = fn;
            LastName = ln;
        }
    }

    public interface IPersonRepository
    {
        List<Person> GetPeople();
        Person GetPersonById(string id);
    }

    public class PersonService
    {
        private IPersonRepository personRepos;
        public PersonService(IPersonRepository repos)
        {
            personRepos = repos;
        }
        public List<Person> GetAllPeople()
        {
            return personRepos.GetPeople();
        }
        public List<Person> GetAllPeopleSorted()
        {
            List<Person> people = personRepos.GetPeople();
            people.Sort(delegate(Person lhp, Person rhp)
            {
                return lhp.LastName.CompareTo(rhp.LastName);
            });
            return people;
        }
        public Person GetPerson(string id)
        {
            try
            {
                return personRepos.GetPersonById(id);
            }
            catch (ArgumentException)
            {
                return null; // no person with that id was found
            }
        }
    }

Moq

[TestFixture]
    public class NUnitTest
    {

        private Mock<IPersonRepository> mo = new Mock<IPersonRepository>();

        private Person onePerson = new Person("", "Wendy", "Whiner");
        private Person secondPerson = new Person("", "Aaron", "Adams");
        private List<Person> peopleList;

        /// <summary>
        ///     填充基础数据
        /// </summary>
        [SetUp]//每个测试方法被调用之前执行
        [Category("Mock")]
        public void Init()
        {
            peopleList = new List<Person>();
            peopleList.Add(onePerson);
            peopleList.Add(secondPerson);

        }

        [Test]
        [Category("Mock")]
        public void TestGetAllPeople()
        {
            //模拟使用接口方法及返还数据
            mo.Setup(m => m.GetPeople()).Returns(peopleList);

            PersonService service = new PersonService(mo.Object);

            Assert.AreEqual(, service.GetAllPeople().Count);
        }

        [Test]
        [Category("Mock")]
        public void TestGetAllPeopleSorted()
        {
            mo.Setup(m => m.GetPeople()).Returns(peopleList);

            PersonService service = new PersonService(mo.Object);

            var p  = service.GetAllPeopleSorted()[];

            Assert.AreEqual("Adams", p.LastName);
        }

        [Test]
        [Category("Mock")]
        public void TestGetSinglePersonWithValidId()
        {
            mo.Setup(m => m.GetPersonById(It.Is<string>(s => s == "")))
                .Returns(onePerson);

            PersonService service = new PersonService(mo.Object);

            var p = service.GetPerson("");

            Assert.IsNotNull(p);
            Assert.AreEqual(p.Id, "");
        }

        [Test]
        [Category("Mock")]
        public void TestGetSinglePersonWithInalidId()
        {
            mo.Setup(m => m.GetPersonById(It.IsAny<string>()));

            PersonService service = new PersonService(mo.Object);
            Assert.IsNull(service.GetPerson(null));
        }

    }