如何使用Mockito驗證void方法

Question

我正在為名稱為NetworkRequest的類編寫一些unitTest 。 在此類中，我有一個函數，其名稱為run 。

public void run(NetworkResponseListener listener) {
        if (listener == null)
            return;

        this.mListener = listener;

        CheckInternetAccess.checkInternetAccess(manager, new NetworkStateListener() {
            @Override
            public void onInternetResponse(int internetCode) {

                if (internetCode == ErrorCodes.CODE_HAS_INTERNET_ACCESS) {
                    runRequest();
                } else {
                    mListener.onNetworkResponse(null);
                }

            }
        });

    }

我想在輸入偵聽器（ NetworkResponseListener ）為null時創建一個測試。

我寫了如下內容：

public class NetworkRequestTest {

    private ReceivedRequest receivedRequest = Mockito.mock(ReceivedRequest.class);
    private ConnectivityManager connectivityManager = Mockito.mock(ConnectivityManager.class);
    private NetworkStateListener networkStateListener = Mockito.mock(NetworkStateListener.class);

    @Test
    public void checkInternetAccessShouldNotCallWithNullListener() {
        NetworkRequest networkRequest = new NetworkRequest(receivedRequest, connectivityManager);//SUT

        networkRequest.run(null);

        Mockito.verify(CheckInternetAccess.checkInternetAccess(connectivityManager, networkStateListener), Mockito.never());
    }
}

我想檢查CheckInternetAccess.checkInternetAccess驗證，但是出現錯誤消息：

Wrong 1st argument type. Found: 'void', required: 'java.lang.Void'

Answer 1

嘗試在模擬對象上使用Mockito.verifyZeroInteractions（...）。