Question

根据我之前的问题：Rhino Mocks - Testing Repository layer returns "object reference not set to instance" error

当它与套件中的其他测试一起运行时，在传递NUnit测试时遇到问题。

整个测试类如下：

using System;
using System.Linq;
using System.Linq.Expressions;
using NUnit.Framework;
using System.Collections.Generic;
using Rhino.Mocks;
using Assert = NUnit.Framework.Assert;
Tests.DAO
{
    /// <summary>
    /// Uses the 3A method of Unit Testing; Arrange, Act, Assert.
    /// 
    /// Tests the Billing DAO
    /// </summary>
    [TestFixture]
    public class BillingTests
    {
        private IDataContextWrapper _dataContext;
        private Repository _intRepository;

        /// <summary>
        /// Sets up the following constructs for testing.
        /// 
        /// - DataContext
        /// - InternalRepository
        /// - Billing
        /// </summary>
        [TestFixtureSetUp]
        public void TestFixtureSetup()
        {
            _dataContext = MockRepository.GenerateMock<IDataContextWrapper>();
        }

        /// <summary>
        /// 
        /// </summary>
        [TestFixtureTearDown]
        public void TestFixtureTearDown()
        {
            _dataContext.Dispose();
        }

        /// <summary>
        /// Tests adding a Billing object to the Database.
        /// </summary>
        [Test]
        public void Add()
        {
            // Arrange
            var billing = new Billing();
            _intRepository = new Repository(_dataContext);

            // Act
            _intRepository.AddRecord(billing);

            // Assert
            _dataContext.AssertWasCalled(x => x.InsertOnSubmit(billing));
            _dataContext.AssertWasCalled(x => x.SubmitChanges());
        }

        /// <summary>
        /// The test attempts to remove the Billing before asserting that it no-longer
        /// exists in the database by attempting to delete it again.
        /// </summary>
        [Test]
        public void Delete()
        {
            // Arrange
            var billing = new Billing();
            _intRepository = new Repository(_dataContext);

            // Arrange
            _intRepository.DeleteRecord(billing);

            // Assert
            _dataContext.AssertWasCalled(x => x.DeleteOnSubmit(billing));
            _dataContext.AssertWasCalled(x => x.SubmitChanges());
        }

        /// <summary>
        /// The test retrieves the Billing from 
        /// the database and asserts that 
        /// the original Billing and
        /// the one retrieved are the same.
        /// </summary>
        [Test]
        public void GetRecordWhere()
        {
            // Arrange
            var list = new List<Billing> {new Billing {BillingId = 1}};
            const int testId = 1;

            _dataContext.Stub(x => x.GetTable<Billing>()).Return(list.AsQueryable());
            _intRepository = new Repository(_dataContext);

            // Act
            var result = _intRepository.GetRecordWhere<Billing>(x => x.BillingId == testId);

            // Assert
            Assert.IsNotNull(result);
            Assert.AreEqual(result.BillingId, testId);
            _dataContext.AssertWasCalled(x => x.GetTable<Billing>());
        }

        /// <summary>
        /// 
        /// </summary>
        [Test]
        public void GetAllRecordsWhere()
        {

        }

        /// <summary>
        /// Retrieves the total number of Billings in the database
        /// and compares it against how many were added by the testFixture.
        /// </summary>
        [Test]
        public void GetAllBillings()
        {
            // Arrange
            _dataContext.Stub(x => x.GetTable<Billing>()).Return(new List<Billing> { new Billing { BillingId = 1 } }.AsQueryable());
            _intRepository = new Repository(_dataContext);

            // Act
            var result = _intRepository.GetAllRecords<Billing>();

            // Assert
            Assert.AreEqual(typeof(EnumerableQuery<Billing>), result.GetType());
            _dataContext.AssertWasCalled(x => x.GetTable<Billing>());
        }

        /// <summary>
        /// Tests find all Billings. Expects the return type to be of IQeryable
        ///  </summary>
        [Test]
        public void FindAllBillings()
        {
            // Arrange
            _dataContext.Stub(x => x.GetTable<Billing>()).Return(new List<Billing>().AsQueryable());
            _intRepository = new Repository(_dataContext);

            // Act
            var result = _intRepository.FindAll<Billing>();

            // Assert
            Assert.IsNotNull(result);
            Assert.AreEqual(typeof(EnumerableQuery<Billing>), result.GetType());
        }
    }
}

现在已经修复的测试（或者我的理解已经修复）在自行运行时通过。但是当测试一起运行时呢？我在NUnit的SetUp / TearDown功能中遗漏了什么？ dataContext或Repository是否存在于我希望不存在的位置？

感谢您的帮助！

Answer 1

TestFixtureSetup和TestFixtureTearDown每个灯具运行一次。也就是说，只有一个标记为TestFixtureSetup的方法，它只运行一次，然后才运行夹具中的所有测试。类似地，只有一个标记为TestFixtureTearDown的方法，该方法只运行一次，然后运行夹具中的所有测试。因此，您的变量_dataContext会在方法TestFixtureSetup中初始化一次，并且在TestFixtureTearDown之前不会被处理。很难说这是否是你想要的。

如果您想要单独设置和拆除每个测试之前和之后运行的方法，请使用属性Setup和TearDown。

Rhino Mocks / Repository测试 - NUnit测试套件失败，但单个模拟单元测试通过？

1 个答案: