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？
解决方法
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);
- ...
