我试图模拟一个sqlDataReader

sqlDataReader reader = mocks.CreateMock<sqlDataReader>();
 Expect.Call(reader.Read()).Return(true).Repeat.Times(1);
 Expect.Call(reader.Read()).Return(false);
 Expect.Call(reader.HasRows).Return(true);
 Expect.Call(reader.dispose);
 Expect.Call(reader["City"]).Return("Boise");
 Expect.Call(reader["State"]).Return("State");
 Expect.Call(reader["LAT"]).Return(100);
 Expect.Call(reader["LON"]).Return(-100);
 mocks.ReplayAll();

但我不断得到一个Rhino.Mocks.Exceptions.ExpectationViolationException：Idisposable.dispose();预期#0,我的方法中的实际#1错误

using (reader)
        {
            if (reader.HasRows)
            {
                while (reader.Read())
                {
                    CityState myCity = new CityState
                       {
                           City = reader["City"].ToString(),State = reader["State"].ToString(),Lat = Convert.ToInt32(reader["LAT"]),Lon = Convert.ToInt32(reader["LON"])
                       };
                    myCities.Add(myCity);
                }                    
            }               
        }

我错过了什么吗？

我将建议您使用AAA语法和使用接口(IDataReader)而不是具体类型(sqlDataReader)重写测试：

// Arrange
IDataReader reader = MockRepository.GenerateStub<IDataReader>();
reader.Stub(x => x.Read()).Repeat.Once().Return(true);
reader.Stub(x => x.Read()).Return(false);
reader.Stub(x => x["City"]).Return("Boise");
reader.Stub(x => x["State"]).Return("State");
reader.Stub(x => x["LAT"]).Return(100);
reader.Stub(x => x["LON"]).Return(-100);

// Act
var myCities = new List<CityState>();
using (reader)
{
    while (reader.Read())
    {
        CityState myCity = new CityState
        {
            City = reader["City"].ToString(),Lon = Convert.ToInt32(reader["LON"])
        };
        myCities.Add(myCity);
    }
}

// Assert
Assert.AreEqual(1,myCities.Count);
Assert.AreEqual("Boise",myCities[0].City);
...

我面临一个非常奇怪的问题.

URL = "/my/specific/url/";
 when(this.restHelperMock.post(
 eq(myEnum),eq(this.config.apiEndpoint() + URL),any(JSONObject.class))).thenReturn(new JSONObject(myDesiredJsonContent));

甚至包含

URL = "/my/specific/url/";
 when(this.restHelperMock.post(
 eq(myEnum),contains(this.config.apiEndpoint() + URL),any(JSONObject.class))).thenReturn(new JSONObject(myDesiredJsonContent));

给我

org.mockito.exceptions.misusing.InvalidUSEOfMatchersException: 
Invalid use of argument matchers!
0 matchers expected,1 recorded:

This exception may occur if matchers are combined with raw values:
    //incorrect:
    someMethod(anyObject(),"raw String");
When using matchers,all arguments have to be provided by matchers.
For example:
    //correct:
    someMethod(anyObject(),eq("String by matcher"));

For more info see javadoc for Matchers class.

即使我不使用RAW表达式.
奇怪的是,如果我将contains方法更改为：

URL = "/my/specific/url/";
 when(this.restHelperMock.post(
 eq(myEnum),contains(URL),any(JSONObject.class))).thenReturn(new JSONObject(myDesiredJsonContent));

省略端点,它的工作原理.

Config和RestHelper都被嘲笑：

this.restHelperMock = mock(RESTHelper.class);
this.config = mock(MyBMWConfiguration.class);

when(this.config.apiEndpoint()).thenReturn("http://host:port/api");

ApiEndpoint的URL等于我想要模拟的,
即使它不会,我应该得到一个NullpointerException,因为虚假的嘲弄.
但在这里,我没有任何想法.

谢谢您的回答.

问题似乎是你在eq(…)调用期间调用了一个模拟方法this.config.apiEndpoint().尝试简单地将完整的URL放在那里(host：port / api / my / specific / url)而不是在那里调用另一个模拟,这可能会混淆Mockito,因为它依赖于内部状态进行模拟.

说实话,我不是那么深入Mockito,我可以解释为什么会发生这种情况,但有一天我可能会尝试调试它;-)

编辑：奇怪的是,我似乎无法用更简单的测试用例重现它.这里似乎有更多,而不是满足眼睛.

我正在使用mockito进行测试,但我遇到了这个问题：

org.mockito.exceptions.misusing.InvalidUSEOfMatchersException: 
Invalid use of argument matchers!
2 matchers expected,1 recorded:
-> at cl.gps.tms.planifications.planification.test.PlanificationCreateTest.setUp(PlanificationCreateTest.java:68)

This exception may occur if matchers are combined with raw values:
    //incorrect:
    someMethod(anyObject(),"raw String");
When using matchers,all arguments have to be provided by matchers.
For example:
    //correct:
    someMethod(anyObject(),eq("String by matcher"));

...

PlanificationCreateTest使用SimpleQueryBus创建一个通用查询,其中de first参数指示返回的对象类型,第二个参数是查询的过滤器.

我想要存根SimpleQueryBus类(外部库)返回null(仅限现在)

SimpleQueryBus代码

public class SimpleQueryBus implements QueryBus {

    public <T,R> R handle(Class<R> clazz,T query) throws Exception {
    ...
    }
}

我的测试代码

public class PlanificationCreateTest {

    private QueryBus queryBus;

    @Before
    public void setUp() throws Exception {
        queryBus = Mockito.mock(SimpleQueryBus.class);

        when(queryBus.handle(VehicleCollection.class,any(GetVehicle.class))).thenAnswer(null);

        ....
    }
}

更新(已解决)：

public class PlanificationCreateTest {

    private QueryBus queryBus;

    @Before
    public void setUp() throws Exception {
        queryBus = Mockito.mock(SimpleQueryBus.class);

        // first example
        when(queryBus.handle(any(Class.class),isA(VehicleAvailable.class))).thenReturn(null);          

        // second example
        vehicle = new VehicleCollection("001","name","tag","brand","model");            
        when(queryBus.handle(any(Class.class),isA(GetVehicle.class))).thenReturn(vehicle);

        ....
    }
}

谢谢…

发生这种情况是因为您使用any()以及Class< VehicleCollection>类型的实参参数VehicleCollection.class.

改变就像下面一样,你应该没问题：

when(queryBus.handle(any(VehicleCollection.class),any(GetVehicle.class))).thenAnswer(null);

Mockito解释了原因：http://mockito.googlecode.com/svn/tags/1.7/javadoc/org/mockito/Matchers.html

If you are using argument matchers,all arguments have to be provided
by matchers.

E.g: (example shows verification but the same applies to stubbing):

06001