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问题描述

如何使用犀牛制品
我有以下类模拟数据访问层:

 公共接口IDataAccess 
{
INT ExecuteNoneQuery(SqlConnection的连接字符串storedProcedureName,
IEnumerable的<&SqlParameter的GT; sqlParameters);

}

公共类数据访问:IDataAccess
{
公众诠释ExecuteNoneQuery(SqlConnection的连接字符串storedProcedureName,
的IEnumerable<的SqlParameter> sqlParameters )
{
使用(的SqlCommand命令= connection.CreateCommand())
{
//做一些东西
返回command.ExecuteNonQuery();

}
}
}

公共类DbOperation< T>
{
私人IDataAccess _access;

公共DbOperation(IDataAccess访问)
{
_access =接入;
}

公众诠释插入(T项目,SqlConnection的连接字符串spName)
{
IDbObjectFactory< T> parametersFactory =新SqlParameterFactory< T>();
VAR参数=(IList的<&SqlParameter的GT;)parametersFactory.GetDbObject(项目);
返回_access.ExecuteNoneQuery(连接,spName,参数);
}
}


解决方案

下面是一些解释一个例子:



要测试的情况:结果
当方式 ExecuteNoneQuery 数据访问被称为结果
,则 command.ExecuteNonQuery()应该叫:

  // 1.创建`SqlCommand`模拟:
VAR命令= MockRepository.GenerateMock<&的SqlCommand GT;();

// 2.创建`SqlConnection`存根:
VAR连接= MockRepository.GenerateStub< SqlConnection的>();

// 3.设置connection.CreateCommand()返回嘲笑命令:
连接
.Stub(C => c.CreateCommand())
。返程(命令);

// 4.是否测试动作:
VAR数据访问=新的DataAccess();
dataAccess.ExecuteNoneQuery(连接,NULL,NULL);

//断言command.ExecuteNonQuery()被调用:
command.AssertWasCalled(C => c.ExecuteNonQuery());



希望,解释了一下如何使用犀牛模拟。


How can i mock data access layer using Rhino mocksI have the following classes:

 public interface IDataAccess
{
    int ExecuteNoneQuery(SqlConnection connection, string storedProcedureName,
                         IEnumerable<SqlParameter> sqlParameters);

}

public class DataAccess : IDataAccess
    {
     public int ExecuteNoneQuery(SqlConnection connection, string storedProcedureName,
                                    IEnumerable<SqlParameter> sqlParameters)
      {
         using (SqlCommand command = connection.CreateCommand())
        {
                // do some stuff
                return command.ExecuteNonQuery();

        }
    }
}

 public class DbOperation<T>
    {
        private IDataAccess _access;

        public DbOperation(IDataAccess access)
        {
            _access = access;
        }

        public int Insert(T item, SqlConnection connection,string spName)
        {
            IDbObjectFactory<T> parametersFactory = new SqlParameterFactory<T>();
            var parameters = (IList<SqlParameter>)parametersFactory.GetDbObject(item);
            return _access.ExecuteNoneQuery(connection, spName, parameters);
        }
    }
解决方案

Here is an example with some explanations:

To test the case:
WHEN method ExecuteNoneQuery of class DataAccess is called
THEN command.ExecuteNonQuery() should be called:

// 1. Create `SqlCommand` Mock:
var command = MockRepository.GenerateMock<SqlCommand>();

// 2. Create `SqlConnection` Stub:
var connection = MockRepository.GenerateStub<SqlConnection>();

// 3. Setup connection.CreateCommand() to return mocked command:
connection
    .Stub(c => c.CreateCommand())
    .Return(command);

// 4. Do test action:
var dataAccess = new DataAccess();
dataAccess.ExecuteNoneQuery(connection, null, null);

// Assert command.ExecuteNonQuery() has been called:
command.AssertWasCalled(c => c.ExecuteNonQuery());

Hope that explains a bit how to use Rhino Mock.

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10-24 15:25