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POerror in testing service class
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  1. POerror in testing service class
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    copied!<pre><code>java.lang.NullPointerException at com.android.deviceintelligence1.test.Testappdata.testappd(Testappdata.java:29) at java.lang.reflect.Method.invokeNative(Native Method) at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:169) at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:154) at android.test.InstrumentationTestRunner.onStart(InstrumentationTestRunner.java:529) at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1448) </code></pre> <p>this is error after running my test class.in error log.</p> <pre><code>public class Testappdata extends ServiceTestCase&lt;MainService&gt; { public Testappdata() { super(MainService.class); } protected void setUp() throws Exception { try { super.setUp(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } MainService main; public void testappd() { main = getService(); String Package = "com.android"; Assert.assertNotNull(main.appData(Package)); } </code></pre> <p>this is my test class.to test service to get data value.</p> <pre><code>public class MainService extends Service { private final static String TAG = "Device Intelligence"; double lat = 0.0; double lng = 0.0; List&lt;Address&gt; addresses = null; String addre; Handler mHandler = new Handler(); String lPackAgeName, packAgeName = ""; public static DataHelper dh; public String appData(String pName) { PackageManager pm = getPackageManager(); try { Method getPackageSizeInfo = pm.getClass().getMethod( "getPackageSizeInfo", String.class, IPackageStatsObserver.class); getPackageSizeInfo.invoke(pm, pName, new IPackageStatsObserver.Stub() { public void onGetStatsCompleted(PackageStats pStats, boolean succeeded) throws RemoteException { data_value = String.valueOf(pStats.dataSize / 1024) + "kb"; Log.d("bugs", "datavalue: " + data_value); } }); } catch (Exception e) { e.printStackTrace(); } return data_value; } </code></pre> <p>this is my service class.so how can I clear my error.is ther any changes needed in test class to get out of the error .thanks for help in advance.</p>
 

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