此篇主要試探討如何測試Android Service Class.
若測試中和Android API較無關係的話, 我們可將測試檔案放於module-name/src/test/java/ 路徑下.
若與Android API 相關的測試, 需將測試檔案放於module-name/src/androidTest/java/ 路徑下.
(請參閱 Android App Test 基本概念)
在此篇我們使用Wifi 開關來做例子, 與Android API 相關,
所以需將測試檔案放於module-name/src/androidTest/java/ 路徑下
Step 1: 建造Service 類別
建造Service 類別, 並新增函數為開啟Wifi
MainService.java1
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| public class MainService extends Service {
private final String TAG = "Nick MainService";
private final IBinder myLocalBinder = new ServiceBinder();
public class ServiceBinder extends Binder {
public MainService getService() {
return MainService.this;
}
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return myLocalBinder;
}
public void onCreate() {
Log.w(TAG,"onCreate");
}
public void enableWifi() {
WifiManager wifiManager = (WifiManager) this.getSystemService(WIFI_SERVICE);
wifiManager.setWifiEnabled(true);
}
public void onDestroy() {
Log.w(TAG,"onDestroy");
}
}
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Step 2: 建立測試檔
利用 Ctrl + Shift + T 建立 MainServiceTest.java
並繼承 InstrumentationTestCase
Step 3: 測試
測試 startService 與 bindService
測試 startService
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| @SmallTest
public void testStartable() {
Intent startIntent = new Intent();
startIntent.setClass(getContext(), MainService.class);
startService(startIntent);
MainService service = (MainService) getService();
assertNotNull(service);
}
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測試 bindService
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| @MediumTest
public void testBindable() {
Intent startIntent = new Intent();
startIntent.setClass(getContext(), MainService.class);
IBinder serviceBinder = bindService(startIntent);
assertNotNull(serviceBinder);
MainService service = ((MainService.ServiceBinder) serviceBinder).getService();
assertNotNull(service);
}
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Step 4: 測試開啟Wifi 功能
於setUp 取得context控制權, 並於tearDown() 釋放context控制權
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| @Override
public void setUp() throws Exception {
super.setUp();
Log.w(TAG, "setUp");
mContext = getContext();
}
@Override
public void tearDown() throws Exception {
Log.w(TAG, "tearDown");
mContext = null;
super.tearDown();
}
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測試開啟Wifi 功能
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| @MediumTest
public void testEnableWifi() throws InterruptedException {
Intent startIntent = new Intent();
startIntent.setClass(getContext(), MainService.class);
IBinder serviceBinder = bindService(startIntent);
assertNotNull(serviceBinder);
MainService service = ((MainService.ServiceBinder) serviceBinder).getService();
assertNotNull(service);
service.enableWifi();
Thread.sleep(1000);
WifiManager wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
assertEquals(true, wifiManager.isWifiEnabled());
}
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Source Code
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| public class MainServiceTest extends ServiceTestCase {
private final String TAG = "Nick MainServiceTest";
private Context mContext;
public MainServiceTest() {
super(MainService.class);
}
@Override
public void setUp() throws Exception {
super.setUp();
Log.w(TAG, "setUp");
mContext = getContext();
}
@SmallTest
public void testStartable() {
Intent startIntent = new Intent();
startIntent.setClass(getContext(), MainService.class);
startService(startIntent);
MainService service = (MainService) getService();
assertNotNull(service);
}
@MediumTest
public void testBindable() {
Intent startIntent = new Intent();
startIntent.setClass(getContext(), MainService.class);
IBinder serviceBinder = bindService(startIntent);
assertNotNull(serviceBinder);
MainService service = ((MainService.ServiceBinder) serviceBinder).getService();
assertNotNull(service);
}
@MediumTest
public void testEnableWifi() throws InterruptedException {
Intent startIntent = new Intent();
startIntent.setClass(getContext(), MainService.class);
IBinder serviceBinder = bindService(startIntent);
assertNotNull(serviceBinder);
MainService service = ((MainService.ServiceBinder) serviceBinder).getService();
assertNotNull(service);
service.enableWifi();
Thread.sleep(1000);
WifiManager wifiManager = (WifiManager) mContext.getSystemService(Context.WIFI_SERVICE);
assertEquals(true, wifiManager.isWifiEnabled());
}
@Override
public void tearDown() throws Exception {
Log.w(TAG, "tearDown");
mContext = null;
super.tearDown();
}
}
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