Google模拟:如何在模拟参数中从指针中复制内存

Google Mock: How to copy memory from a pointer in a mock argument?

本文关键字：模拟 指针 内存 复制 Google 参数      更新时间：2023-10-16

我的以下功能与签名模拟：

uint32 Icc_u_SendMessage(te_IccTransferType e_DataTxType, SW_e_IccMsgType e_MsgType, uint8 *const pui8_DataRef, const uint32 ui32_DataSize, const SW_e_CoreIdent e_MsgDestination)

对我来说有趣的论点是arg2（ pui8_DataRef）。

调用测试的功能：

MessageBuffer<ET_t_SignalToGs> s_locPayloadToGs; (Local)
iccReturnValue = c_ICC_Messages::ICC_ui32_SendMessage(c_ICC_Messages::e_TxSendRefCopyData, e_msg, (uint8*)&locPayloadToGs, u_size, e_dst);

我想复制整个s_locPayloadToGs的全部包含的检查。SaveArgPointee()的问题是第三个参数是（uint8 *），我只得到第一个字节。

我该如何从EXPECT_CALL()中的模拟参数中执行一种memcpy？喜欢以下：

c_event_transceiver::MessageBuffer<c_event_transceiver::ET_t_SignalToGs> expectedPayload;
EXPECT_CALL(obj_MockIccMessages, ICC_ui32_SendMessage(c_ICC_Messages::e_TxSendRefCopyData,
                                                            e_MsgToGs,
                                                            _,
                                                            sizeof(expectedLocPayload),
                                                            c_event_transceiver::a_ConfigMapGsToCore[0].e_core)).WillOnce(DoAll(SaveArgPointee<2>(&expectedPayload), Return(retSendMessage)));

谢谢

您可以定义自己的动作：

ACTION_P(SavePayload, expectedPayload)
{
    auto beginOfArray = arg2;
    auto sizeOfArray = arg3;
    auto endOfArray = beginOfArray  + sizeOfArray ;
    expectedPayload->assign(beginOfArray , endOfArray);
    //               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
    //  that only my guess how it is possible to store payload
}

，只需在测试中用SavePayload(&expectedPayload)替换SaveArgPointee<2>(&expectedPayload)。

但是，您真正需要的是一个多参数匹配器 - 将与此类有效载荷相匹配，类似的是：

MATCHER_P(matchPayload, expectedPayload)
{
    auto beginOfArray = get<2>(arg);
    auto sizeOfArray = get<3>(arg);
    auto endOfArray = beginOfArray  + sizeOfArray ;
    return expectedPayload->equalTo(beginOfArray , endOfArray);
           //               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
           //  that only my guess how it is possible to compare payloads   
}

并将其与With(matchPayload()) Clausure一起使用：

c_event_transceiver::MessageBuffer<c_event_transceiver::ET_t_SignalToGs> expectedPayload;
// expectedPayload - build it to be as this you expect
...
EXPECT_CALL(obj_MockIccMessages, ICC_ui32_SendMessage(c_ICC_Messages::e_TxSendRefCopyData,
                     e_MsgToGs,
                     _,
                     sizeof(expectedLocPayload),
                     c_event_transceiver::a_ConfigMapGsToCore[0].e_core))
.With(matchPayload(&expectedPayload)).WillOnce(Return(retSendMessage));
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