如何在模拟方法中对函数进行单元测试

121

somecoolname

我如何在这里测试DeleteAppointmentById？

 Func<IDataAdapterRW, IEnumerable<uint>> function = db =>   DeleteAppointmentById(db, appointmentId);

 return _dataContextProvider.GetContextRW().Run(function);

_dataContextProvider已用最小起订量来模拟。如果我运行测试，则它永远不会输入DeleteAppointmentById

测试方法：

public IEnumerable<uint> DeleteAppointment(uint appointmentId)
    {
        Func<IDataAdapterRW, IEnumerable<uint>> function = db => DeleteAppointmentById(db, appointmentId);
        return _dataContextProvider.GetContextRW().Run(function);
    }

DeleteAppointmentById是我真正感兴趣的内部方法（私有）。

我的测试：

[Test]
    public void DeleteAppointment_Valid_DeletedRecordId()
    {
        //Setup
        var dbContextMock = new Mock<IDataContextProvider>();
        var dataAdapterMock = new Mock<IDataContext<IDataAdapterRW>>();

        dbContextMock.Setup(d => d.GetContextRW())
            .Returns(dataAdapterMock.Object);

        dataAdapterMock.Setup(a => a.Run(It.IsAny<Action<IDataAdapterRW>>()));
        var calendarService = new CalendarService(dbContextMock.Object);

        //Run
        var result = calendarService.DeleteAppointment(1);

        //Assert
        Assert.AreEqual(1, result);
    }

脱水

您可以访问结果中的Func传递作为参数Run的方法，并断言像下面的结果。

为什么要返回结果？因为这是一个模拟并且不知道 Run方法的行为。

[Test]
public void DeleteAppointment_Valid_DeletedRecordId()
{
    //Setup
    var dbContextMock = new Mock<IDataContextProvider>();
    var dataAdapterMock = new Mock<IDataContext<IDataAdapterRW>>();

    dbContextMock.Setup(d => d.GetContextRW())
        .Returns(dataAdapterMock.Object);

    dataAdapterMock.Setup(a => a.Run(It.IsAny<Func<IDataAdapterRW, IEnumerable<uint>>>()))
                   .Returns((Func<IDataAdapterRW, IEnumerable<uint>> func) => { return func(dataAdapterMock.Object);}); // configure the mock to return the list
    var calendarService = new CalendarService(dbContextMock.Object);

    //Run
    int id = 1;
    var result = calendarService.DeleteAppointment(id);

    //Assert
    var isInList = result.Contains(id); // verify the result if contains the
    Assert.AreEqual(isInList, true);
}

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