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Not able to mock WebView #20

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
Hi,

I am not able to create a mock for WebView android class using android-
mock.

public class TestWebView extends InstrumentationTestCase {

       protected void setUp() throws Exception {
               super.setUp();
       }

       protected void tearDown() throws Exception {
               super.tearDown();
       }

       @UsesMocks({Context.class,WebView.class})
       public void testConstructWebView() {
               WebView mockWebView =
AndroidMock.createMock(WebView.class,this.getInstrumentation().getContext());
               assertNotNull("The webView is null",mockWebView);
       }
}

I am getting following error message:

java.lang.ExceptionInInitializerError
at
com.google.android.testing.mocking.AndroidMock.getSubclassFor(AndroidMock.java:
2658)
at
com.google.android.testing.mocking.AndroidMock.createMock(AndroidMock.java:
188)
at
com.google.android.testing.mocking.AndroidMock.createMock(AndroidMock.java:
157)
at
com.yahoo.yadsdk.ads.test.TestYImageBannerAd.testConstructWebView(TestYImageBann
erAd.java:
53)
at java.lang.reflect.Method.invokeNative(Native Method)
at
android.test.InstrumentationTestCase.runMethod(InstrumentationTestCase.java:
204)
at
android.test.InstrumentationTestCase.runTest(InstrumentationTestCase.java:
194)
at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:169)
at android.test.AndroidTestRunner.runTest(AndroidTestRunner.java:154)
at
android.test.InstrumentationTestRunner.onStart(InstrumentationTestRunner.java:
520)
at android.app.Instrumentation
$InstrumentationThread.run(Instrumentation.java:1447)
Caused by: java.lang.reflect.InvocationTargetException
at
v22.genmocks.android.webkit.WebViewDelegateSubclass.<init>(WebViewDelegateSubcla
ss.java)
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
at
com.google.android.testing.mocking.AndroidMock.getSubclassFor(AndroidMock.java:
2650)
... 16 more
Caused by: java.lang.NullPointerException
at android.webkit.ViewManager.<init>(ViewManager.java:104)
at android.webkit.WebView.<init>(WebView.java:941)
at android.webkit.WebView.<init>(WebView.java:920)
at android.webkit.WebView.<init>(WebView.java:910)
at android.webkit.WebView.<init>(WebView.java:901)
... 20 more

But I am able to create an ImageView instance using same code. Is
there anything very very specific to WebView, which is causing this to
happen?

Any help in this regard would be appreciated.

Thanks a lot!
Vaibhav

Original issue reported on code.google.com by agrvaib...@gmail.com on 1 Feb 2012 at 6:38

GoogleCodeExporter commented 9 years ago 
I did tried earlier with inheriting "TestCase" class like this:

public class TestYCustomBannerAd extends TestCase {

    protected void setUp() throws Exception {
        super.setUp();
    }

    protected void tearDown() throws Exception {
        super.tearDown();
    }

    @UsesMocks({Context.class,WebView.class})
    public void testConstructWebView() {
        Context mockContext = AndroidMock.createMock(Context.class);
        WebView mockWebView = AndroidMock.createMock(WebView.class,mockContext);
        assertNotNull("The webView instance is null!!!",mockWebView);
   }
}

Here I am hitting following error message:

java.lang.ExceptionInInitializerError
at 
com.google.android.testing.mocking.AndroidMock.getSubclassFor(AndroidMock.java:2
658)
at 
com.google.android.testing.mocking.AndroidMock.createMock(AndroidMock.java:188)
at 
com.google.android.testing.mocking.AndroidMock.createMock(AndroidMock.java:157)
at 
com.yahoo.yadsdk.ads.test.TestYCustomBannerAd.testConstructWebView(TestYCustomBa
nnerAd.java:30)
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:52
0)
at 
android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1447)

Caused by: java.lang.reflect.InvocationTargetException
at 
v22.genmocks.android.webkit.WebViewDelegateSubclass.<init>(WebViewDelegateSubcla
ss.java)
at java.lang.reflect.Constructor.constructNative(Native Method)
at java.lang.reflect.Constructor.newInstance(Constructor.java:446)
at 
com.google.android.testing.mocking.AndroidMock.getSubclassFor(AndroidMock.java:2
650)
... 15 more
Caused by: java.lang.IllegalStateException: missing behavior definition for the 
preceeding method call getResources()
at 
org.easymock.internal.MockInvocationHandler.invoke(MockInvocationHandler.java:30
)
at org.easymock.internal.ObjectMethodsFilter.invoke(ObjectMethodsFilter.java:61)
at $Proxy1.getResources(Native Method)
at 
v22.genmocks.android.content.ContextDelegateSubclass.getResources(ContextDelegat
eSubclass.java)
at android.view.ViewConfiguration.get(ViewConfiguration.java:211)
at android.view.View.<init>(View.java:1814)
at android.view.View.<init>(View.java:1856)
at android.view.ViewGroup.<init>(ViewGroup.java:291)
at android.widget.AbsoluteLayout.<init>(AbsoluteLayout.java:52)
at android.webkit.WebView.<init>(WebView.java:937)

at android.webkit.WebView.<init>(WebView.java:920)
at android.webkit.WebView.<init>(WebView.java:910)
at android.webkit.WebView.<init>(WebView.java:901)
... 19 more

Looks like while creating the mock Webview, it is trying to execute some APIs 
on mockContext, which I am not aware. Also, should we go ahead and train 
mockContext which returns some object for "getResources()" API , doesn't make 
any sense to me and looks awkward.

Is there any way, in which "WebView" can be mocked successfully?

Thanks,
Vaibhav

Original comment by agrvaib...@gmail.com on 16 Feb 2012 at 5:34

GoogleCodeExporter commented 9 years ago 
Hello,

If mocking WebView is not supported by android-mock, then I am wondering
why following delegate classes have been added in
android_framework_mocks.jar . Is there any way out to use them?

$ jar tvf libs/android_framework_mocks.jar | grep WebView

   456 Tue Jan 24 21:20:26 GMT+05:30 2012
v15/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1255 Tue Jan 24 21:20:26 GMT+05:30 2012
v15/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1274 Tue Jan 24 21:20:26 GMT+05:30 2012
v15/genmocks/android/webkit/WebViewClientDelegateInterface.class
  2733 Tue Jan 24 21:20:26 GMT+05:30 2012
v15/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 15017 Tue Jan 24 21:20:26 GMT+05:30 2012
v15/genmocks/android/webkit/WebViewDelegateInterface.class
 41626 Tue Jan 24 21:20:26 GMT+05:30 2012
v15/genmocks/android/webkit/WebViewDelegateSubclass.class
   456 Tue Jan 24 21:21:04 GMT+05:30 2012
v16/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1255 Tue Jan 24 21:21:04 GMT+05:30 2012
v16/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1274 Tue Jan 24 21:21:04 GMT+05:30 2012
v16/genmocks/android/webkit/WebViewClientDelegateInterface.class
  2733 Tue Jan 24 21:21:04 GMT+05:30 2012
v16/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 15515 Tue Jan 24 21:21:06 GMT+05:30 2012
v16/genmocks/android/webkit/WebViewDelegateInterface.class
 42810 Tue Jan 24 21:21:06 GMT+05:30 2012
v16/genmocks/android/webkit/WebViewDelegateSubclass.class
   457 Tue Jan 24 21:21:42 GMT+05:30 2012
v201/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1259 Tue Jan 24 21:21:42 GMT+05:30 2012
v201/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1275 Tue Jan 24 21:21:42 GMT+05:30 2012
v201/genmocks/android/webkit/WebViewClientDelegateInterface.class
  2737 Tue Jan 24 21:21:42 GMT+05:30 2012
v201/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 15783 Tue Jan 24 21:21:42 GMT+05:30 2012
v201/genmocks/android/webkit/WebViewDelegateInterface.class
 43631 Tue Jan 24 21:21:42 GMT+05:30 2012
v201/genmocks/android/webkit/WebViewDelegateSubclass.class
   456 Tue Jan 24 21:22:46 GMT+05:30 2012
v21/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1255 Tue Jan 24 21:22:46 GMT+05:30 2012
v21/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1274 Tue Jan 24 21:22:46 GMT+05:30 2012
v21/genmocks/android/webkit/WebViewClientDelegateInterface.class
  2733 Tue Jan 24 21:22:46 GMT+05:30 2012
v21/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 15903 Tue Jan 24 21:22:46 GMT+05:30 2012
v21/genmocks/android/webkit/WebViewDelegateInterface.class
 44019 Tue Jan 24 21:22:46 GMT+05:30 2012
v21/genmocks/android/webkit/WebViewDelegateSubclass.class
   456 Tue Jan 24 21:23:24 GMT+05:30 2012
v22/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1255 Tue Jan 24 21:23:24 GMT+05:30 2012
v22/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1392 Tue Jan 24 21:23:24 GMT+05:30 2012
v22/genmocks/android/webkit/WebViewClientDelegateInterface.class
  2921 Tue Jan 24 21:23:24 GMT+05:30 2012
v22/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 16210 Tue Jan 24 21:23:24 GMT+05:30 2012
v22/genmocks/android/webkit/WebViewDelegateInterface.class
 44872 Tue Jan 24 21:23:24 GMT+05:30 2012
v22/genmocks/android/webkit/WebViewDelegateSubclass.class
   457 Tue Jan 24 21:23:58 GMT+05:30 2012
v231/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1259 Tue Jan 24 21:23:58 GMT+05:30 2012
v231/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1393 Tue Jan 24 21:23:58 GMT+05:30 2012
v231/genmocks/android/webkit/WebViewClientDelegateInterface.class
  2925 Tue Jan 24 21:23:58 GMT+05:30 2012
v231/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 16458 Tue Jan 24 21:23:58 GMT+05:30 2012
v231/genmocks/android/webkit/WebViewDelegateInterface.class
 45619 Tue Jan 24 21:23:58 GMT+05:30 2012
v231/genmocks/android/webkit/WebViewDelegateSubclass.class
   457 Tue Jan 24 21:25:00 GMT+05:30 2012
v233/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1259 Tue Jan 24 21:25:00 GMT+05:30 2012
v233/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1393 Tue Jan 24 21:25:00 GMT+05:30 2012
v233/genmocks/android/webkit/WebViewClientDelegateInterface.class
  2925 Tue Jan 24 21:25:00 GMT+05:30 2012
v233/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 16458 Tue Jan 24 21:25:00 GMT+05:30 2012
v233/genmocks/android/webkit/WebViewDelegateInterface.class
 45619 Tue Jan 24 21:25:00 GMT+05:30 2012
v233/genmocks/android/webkit/WebViewDelegateSubclass.class
   456 Tue Jan 24 21:26:30 GMT+05:30 2012
v30/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1255 Tue Jan 24 21:26:30 GMT+05:30 2012
v30/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1508 Tue Jan 24 21:26:30 GMT+05:30 2012
v30/genmocks/android/webkit/WebViewClientDelegateInterface.class
  3107 Tue Jan 24 21:26:30 GMT+05:30 2012
v30/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 18759 Tue Jan 24 21:26:30 GMT+05:30 2012
v30/genmocks/android/webkit/WebViewDelegateInterface.class
 52530 Tue Jan 24 21:26:30 GMT+05:30 2012
v30/genmocks/android/webkit/WebViewDelegateSubclass.class
  2079 Tue Jan 24 21:26:30 GMT+05:30 2012
v30/genmocks/android/webkit/WebViewFragmentDelegateInterface.class
  5232 Tue Jan 24 21:26:30 GMT+05:30 2012
v30/genmocks/android/webkit/WebViewFragmentDelegateSubclass.class
   456 Tue Jan 24 21:27:38 GMT+05:30 2012
v31/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1255 Tue Jan 24 21:27:38 GMT+05:30 2012
v31/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1625 Tue Jan 24 21:27:38 GMT+05:30 2012
v31/genmocks/android/webkit/WebViewClientDelegateInterface.class
  3296 Tue Jan 24 21:27:38 GMT+05:30 2012
v31/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 19133 Tue Jan 24 21:27:38 GMT+05:30 2012
v31/genmocks/android/webkit/WebViewDelegateInterface.class
 53381 Tue Jan 24 21:27:38 GMT+05:30 2012
v31/genmocks/android/webkit/WebViewDelegateSubclass.class
  2161 Tue Jan 24 21:27:38 GMT+05:30 2012
v31/genmocks/android/webkit/WebViewFragmentDelegateInterface.class
  5384 Tue Jan 24 21:27:38 GMT+05:30 2012
v31/genmocks/android/webkit/WebViewFragmentDelegateSubclass.class
   456 Tue Jan 24 21:29:36 GMT+05:30 2012
v40/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1255 Tue Jan 24 21:29:36 GMT+05:30 2012
v40/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1625 Tue Jan 24 21:29:36 GMT+05:30 2012
v40/genmocks/android/webkit/WebViewClientDelegateInterface.class
  3296 Tue Jan 24 21:29:36 GMT+05:30 2012
v40/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 20296 Tue Jan 24 21:29:36 GMT+05:30 2012
v40/genmocks/android/webkit/WebViewDelegateInterface.class
 56323 Tue Jan 24 21:29:36 GMT+05:30 2012
v40/genmocks/android/webkit/WebViewDelegateSubclass.class
  2357 Tue Jan 24 21:29:36 GMT+05:30 2012
v40/genmocks/android/webkit/WebViewFragmentDelegateInterface.class
  5853 Tue Jan 24 21:29:36 GMT+05:30 2012
v40/genmocks/android/webkit/WebViewFragmentDelegateSubclass.class
   457 Tue Jan 24 21:30:54 GMT+05:30 2012
v403/genmocks/android/webkit/WebView$WebViewTransportDelegateInterface.class
  1259 Tue Jan 24 21:30:54 GMT+05:30 2012
v403/genmocks/android/webkit/WebView$WebViewTransportDelegateSubclass.class
  1626 Tue Jan 24 21:30:54 GMT+05:30 2012
v403/genmocks/android/webkit/WebViewClientDelegateInterface.class
  3300 Tue Jan 24 21:30:54 GMT+05:30 2012
v403/genmocks/android/webkit/WebViewClientDelegateSubclass.class
 20349 Tue Jan 24 21:30:52 GMT+05:30 2012
v403/genmocks/android/webkit/WebViewDelegateInterface.class
 56515 Tue Jan 24 21:30:52 GMT+05:30 2012
v403/genmocks/android/webkit/WebViewDelegateSubclass.class
  2422 Tue Jan 24 21:30:54 GMT+05:30 2012
v403/genmocks/android/webkit/WebViewFragmentDelegateInterface.class
  6057 Tue Jan 24 21:30:52 GMT+05:30 2012
v403/genmocks/android/webkit/WebViewFragmentDelegateSubclass.class

Regards,
Vaibhav

Original comment by agrvaib...@gmail.com on 15 May 2012 at 5:42