使用 Moq 和 NUnit ，什么是编写方法/更好的语法？

Question

我正在尝试测试这种行为

- BLOGTableAdapter.GetBlogsByTitle(string title) 被调用并且只调用一次

——并且用具有以下内容的字符串调用 长度大于 1，

-- 它返回 BLOGDataTable 对象

 [Test]
    public void GetBlogsByBlogTitleTest4()
    {
        var mockAdapter = new Mock<BLOGTableAdapter>();
        var mockTable = new Mock<BLOGDataTable>();

        mockAdapter.Setup(x => x.GetBlogsByTitle(It.Is<string>(s => s.Length > 0))).Returns(mockTable.Object);

        var blogBl = new BlogManagerBLL(mockAdapter.Object);
        blogBl.GetBlogsByBlogTitle("Thanks for reading my question");

        mockAdapter.VerifyAll();
        mockAdapter.Verify(x => x.GetBlogsByTitle(It.Is<string>(s => s.Length > 0)), Times.Exactly(1));
    }

当调用 GetBlogsByTitle(string title) 时，在类中的数据访问层中说“BlogManagerBLL”

public BLOGDataTable GetBlogsByBlogTitle(string title)
        {
            return Adapter.GetBlogsByTitle(title);
        }

如您所见，我使用两个单独的语句来完成这些检查

mockAdapter.Setup(x => x.GetBlogsByTitle(It.Is<string>(s => s.Length > 0))).Returns(mockTable.Object);    
mockAdapter.Verify(x => x.GetBlogsByTitle(It.Is<string>(s => s.Length > 0)), Times.Exactly(1));

1. 我怎样才能把它变成一个 陈述 ？
2. 我测试的东西正确吗？

谢谢

Answer 1

如果您要测试两件事，则应该编写两个测试。

[Test]
public void BlogTableAdapter_should_be_called_with_string_having_length_greater_than_1()
{
    var mockAdapter = new Mock<BLOGTableAdapter>();

    var blogBl = new BlogManagerBLL(mockAdapter.Object);
    blogBl.GetBlogsByBlogTitle("Thanks for reading my question");

    mockAdapter.Verify(x => x.GetBlogsByTitle(It.Is<string>(s => s.Length > 0)));
}

所以

[Test]
public void BlogTableAdapter_should_return_a_BLOGDataTable_object()
{
    var mockAdapter = new Mock<BLOGTableAdapter>();
    mockAdapter.Setup(x => x.GetBlogsByTitle(It.Is<string>(s => s.Length > 0))).Returns(new BLOGDataTable());

    var blogBl = new BlogManagerBLL(mockAdapter.Object);
    var returnValue = blogBl.GetBlogsByBlogTitle("Thanks for reading my question");

    Assert.That(returnValue, Is.TypeOf(typeof(BLOGDataTable)));
}

我想我的建议是不要将它们放在一起，为每个创建一个测试。我想说你正在测试正确的东西。