java - 测试onActivityResult()

我有以下 Activity :

package codeguru.startactivityforresult;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class StartActivityForResult extends Activity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        this.startButton = (Button) this.findViewById(R.id.start_button);
        this.startButton.setOnClickListener(onStart);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        int result = data.getIntExtra(StartActivityForResult.this.getString(R.string.result), -1);
        String msg = "requestCode=" + requestCode + ", resultCode=" + resultCode + ", result=" + result;
        Toast.makeText(this, msg, Toast.LENGTH_LONG).show();
    }

    private View.OnClickListener onStart = new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(StartActivityForResult.this, ChildActivity.class);

            StartActivityForResult.this.startActivityForResult(intent, R.id.child_request);
        }
    };
    private Button startButton = null;
}

并进行以下JUnit测试:

package codeguru.startactivityforresult;

import android.app.Activity;
import android.app.Instrumentation;
import android.test.ActivityInstrumentationTestCase2;
import android.test.UiThreadTest;
import android.widget.Button;
import junit.framework.Assert;

public class StartActivityForResultTest extends ActivityInstrumentationTestCase2<StartActivityForResult> {

    public StartActivityForResultTest() {
        super(StartActivityForResult.class);
    }

    @Override
    public void setUp() throws Exception {
        super.setUp();

        this.setActivityInitialTouchMode(false);

        this.activity = this.getActivity();
        this.startButton = (Button) this.activity.findViewById(R.id.start_button);
    }

    @Override
    public void tearDown() throws Exception {
        this.activity.finish();

        super.tearDown();
    }

    @UiThreadTest
    public void testStartButtonOnClick() {
        Assert.assertTrue(this.startButton.performClick());

        Instrumentation.ActivityResult result = new Instrumentation.ActivityResult(Activity.RESULT_OK, null);
        Assert.assertNotNull(result);

        Instrumentation.ActivityMonitor am = new Instrumentation.ActivityMonitor(ChildActivity.class.getName(), result, true);
        Assert.assertNotNull(am);

        Activity childActivity = this.getInstrumentation().waitForMonitorWithTimeout(am, TIME_OUT);
        Assert.assertNotNull(childActivity);

        Assert.fail("How do I check that StartActivityForResult correctly handles the returned result?");
    }
    private Activity activity = null;
    private Button startButton = null;
    private static final int TIME_OUT = 5 * 1000; // 5 seconds
}

如您所见，我想出了如何使用Instrumentation.ActivityResult和Instrumentation.ActivityMonitor模拟结果。如何检查StartActivityForResult.onActivityResult()是否正确处理此结果？

最佳答案

使用意图框架模拟 Activity 结果

intending(hasComponent(DummyActivity.class.getName())).respondWith(new ActivityResult(resultCode, dataIntent));
rule.getActivity().startActivityForResult(new Intent(context,DummyActivity.class));

验证 Activity 结果逻辑