mocked方法以外的其他方法调用mock对象的实际方法

Question

IFoo
{
    string abc();
    string def();
}

Foo: IFoo
{
    string abc()
    {
        def();
    }

    string def()
    {
    }
}

Mymainclass
{
    private IFoo _foo;

    public Mymainclass():this(new Foo())
    {}

    public Mymainclass(IFoo foo)
    {
        _foo = foo;
    }

    string mainmethod()
    {
        _foo.abc();
    }
}

[TestClass]
public class Mymainclasstester
{
    Mymainclass mainclass;
    Mock<IFoo> mifoo;

    [TestInitialize]
    public void TestInitialize()
    {
        mifoo = new Mock<IFoo>();
        mifoo.Setup(x => x.def(It.IsAny<string>())).Returns("abc");
        mainclass = new Mymainclass(mifoo.Object);
    }

    [TestMethod]
    public void testmethod()
    {
        mainclass.mainmethod();
    }
}

Answer 1

无法使用接口存档所需内容。实际上，您可以通过嘲弄abc来调用def，这似乎有点尴尬：

mock.Setup(x => x.abc()).Returns(() => mock.Object.def());

虽然我看不出这里有什么意义，但您可以只模拟abc...

使用mock存档所需内容的唯一方法是使用实际的class和callbase特性。

public class Foo : IFoo
{
    public virtual string abc() //methods have to be virtual to be mockable
    {
        return def();
    }

    public virtual string def() //methods have to be virtual to be mockable
    {
        return "123";
    }
}

//setup
var mock = new Mock<Foo>();
mock.Setup(x => x.def()).Returns("abc");
mock.Setup(x => x.abc()).CallBase();

mock.Object.abc(); // "abc"