1 /*
2  * Copyright (C) 2015 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.messaging.ui;
18 
19 import android.view.View;
20 
21 
22 /**
23  * Base class for view tests. Derived class just has to provide a layout id. Tests can then just
24  * call getView() to get a created view and test its behavior.
25  */
26 public abstract class ViewTest<T extends View> extends BugleActivityUnitTestCase<TestActivity> {
ViewTest()27     public ViewTest() {
28         super(TestActivity.class);
29     }
30 
31     protected T mView;
32 
33     @SuppressWarnings("unchecked")
34     @Override
setUp()35     protected void setUp() throws Exception {
36         super.setUp();
37 
38         // Create activity
39         final ActivityInstrumentationTestCaseIntent intent =
40                 new ActivityInstrumentationTestCaseIntent(getInstrumentation().getTargetContext(),
41                 TestActivity.class);
42         startActivity(intent, null, null);
43     }
44 
45     @SuppressWarnings("unchecked")
getView()46     protected T getView() {
47         if (mView == null) {
48             // View creation deferred (typically until test time) so that factory/appcontext is
49             // ready.
50             mView = (T) getActivity().getLayoutInflater().inflate(getLayoutIdForView(), null);
51         }
52         return mView;
53     }
54 
clickButton(final View view)55     protected void clickButton(final View view) {
56         getActivity().runOnUiThread(new Runnable() {
57             @Override
58             public void run() {
59                 view.performClick();
60             }
61         });
62         getInstrumentation().waitForIdleSync();
63     }
64 
getLayoutIdForView()65     protected abstract int getLayoutIdForView();
66 }
67