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);
...
