package qq.test;

import android.content.Context;

import android.content.Intent;

import android.support.test.InstrumentationRegistry;

import android.support.test.filters.SdkSuppress;

import android.support.test.runner.AndroidJUnit4;

import android.support.test.uiautomator.By;

import android.support.test.uiautomator.UiDevice;

import android.support.test.uiautomator.Until;

import org.junit.Before;

import org.junit.Test;

import org.junit.runner.RunWith;

import static org.hamcrest.core.IsNull.notNullValue;

import static org.junit.Assert.assertThat;

/**

 * Instrumentation test, which will execute on an Android device.

 *

 * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>

 */

@RunWith(AndroidJUnit4.class)

@SdkSuppress(minSdkVersion = 18)

public class ChangeTextBehaviorTest {

    private static final String BASIC_SAMPLE_PACKAGE

            = "com.android.music";

    private static final int LAUNCH_TIMEOUT = 5000;

    private static final String STRING_TO_BE_TYPED = "UiAutomator";

    private UiDevice mDevice;

    public void startMainActivityFromHomeScreen() {

        // Initialize UiDevice instance

        mDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation());

        // Start from the home screen

        mDevice.pressHome();

        // Wait for launcher

        final String launcherPackage = mDevice.getLauncherPackageName();

        assertThat(launcherPackage, notNullValue());

        mDevice.wait(Until.hasObject(By.pkg(launcherPackage).depth(0)),

                LAUNCH_TIMEOUT);

        // Launch the app

        Context context = InstrumentationRegistry.getContext();

        final Intent intent = context.getPackageManager()

                .getLaunchIntentForPackage(BASIC_SAMPLE_PACKAGE);

        // Clear out any previous instances

        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);

        context.startActivity(intent);

        // Wait for the app to appear

        mDevice.wait(Until.hasObject(By.pkg(BASIC_SAMPLE_PACKAGE).depth(0)),

                LAUNCH_TIMEOUT);

    }

    @Test

    public void testMusic(){

        startMainActivityFromHomeScreen();

    }

}