如何测试自定义cordova插件的本机代码? [英] How to test custom cordova plugin's native code?

问题描述

我知道 cordova-plugin-test-framework 将有助于测试任何科尔多瓦项目. 我正在为Android平台开发自定义相机Cordova插件.我想为我的自定义相机Android插件代码编写一些Junit/Instrumentation测试用例. 我遇到了问题，因为无法从测试类中创建CordovaInterface和CordovaWebView对象.

I know cordova-plugin-test-framework will help in testing any cordova project. I am developing a custom camera cordova plugin for Android platform. I would like to write some Junit/Instrumentation test cases for my custom camera Android plugin code. I am facing issues as I can't create CordovaInterface, CordovaWebView Objects from my test class.

无论如何，我可以从测试类中创建CordovaInterface，CordovaWebView对象，并将它们作为自定义相机Android插件excute方法的参数传递.

Is there anyway that I can create CordovaInterface, CordovaWebView Objects from my test class and pass these as parameters for my custom camera Android plugin excute method.

我想避免使用cordova-plugin-test-framework在js级别进行单元测试用例，并编写一些Junit测试用例(因为我将可以使用我的相机cordova插件使用的大多数内部类).如果这种错误的方法，请纠正我.

I would like to avoid unit test cases at js level using cordova-plugin-test-framework and write some Junit test cases (as I will have access to most of the internal classes my camera cordova plugin use). please correct me, if this wrong approach.

推荐答案

就我而言，我不得不对此方法进行一些修改:

In my case I had to modify a little this approach:

首先，我的TestActivity必须与使用<action android:name="android.intent.action.MAIN" /> intent-filter进行的活动处于同一级别.

First of all, my TestActivity had to be at the same level as the activity using the <action android:name="android.intent.action.MAIN" /> intent-filter.

然后，创建测试文件(以我的情况为MyTestActivityTest.java ，在src/androidTest/java/com/your/package/name 中(这对仪器测试非常重要！)

Then, create the test file (in my case MyTestActivityTest.java IN THE src/androidTest/java/com/your/package/name (super important that this is an Instrumentation Test!!)

然后，在测试本身上:

import android.support.test.rule.ActivityTestRule;
import android.support.test.rule.UiThreadTestRule;
import android.support.test.runner.AndroidJUnit4;

import org.junit.Before;
import org.junit.Rule;
import org.junit.runner.RunWith;

import java.util.concurrent.CountDownLatch;

@RunWith(AndroidJUnit4.class)
public class MyTestActivityTest {

    @Rule
    public ActivityTestRule<TestActivity> mActivityRule = new ActivityTestRule<>(TestActivity.class);

    @Rule
    public UiThreadTestRule uiThreadTestRule = new UiThreadTestRule();

    private YourPlugin mockYourPlugin;

    private CordovaWebView cordovaWebView;
    private CordovaInterface cordovaInterface;
    private TestActivity activity;

    @Before
    public void setUp() throws Throwable {

        activity = mActivityRule.getActivity();
        assertNotNull(activity);

        final CountDownLatch signal = new CountDownLatch(1); --> this one is the important! the sync part got stucked!

        Runnable action = () -> {
            activity.init();
            cordovaWebView = mActivityRule.getActivity().getWebView();
            cordovaInterface = mActivityRule.getActivity().getInterface();
            mockYourPlugin = new YourPlugin();
            mockYourPlugin.initialize(cordovaInterface, cordovaWebView);
            cordovaWebView.getPluginManager().addService(new PluginEntry("YourServiceName", mockBankId));

            signal.countDown();// notify the count down latch, i.e release it
        };

        uiThreadTestRule.runOnUiThread(action);

        signal.await();// wait for callback
    }

    @Test
    public void TestBluetooth() throws JSONException {
        this.mockYourPlugin.execute("echo","[]",new CallbackContext("0", cordovaWebView));
    }

}

和我的build.gradle文件具有以下依赖性:

and my build.gradle file I have this dependencies:

// JUnit 4 framework
implementation 'junit:junit:4.12'
// required if you want to use Mockito for unit tests
implementation 'org.mockito:mockito-core:2.13.0'
implementation 'org.mockito:mockito-android:2.8.47'

implementation 'com.android.support.test:rules:1.0.2'

并且不要忘记将其也放置在build.gradle文件中:

and don't forget to put this also in the build.gradle file:

defaultConfig {
    ...
    testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    ...
}

我真的希望这会有所帮助

I really hope this helps

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