RequestFocusTest.java revision c6cc0f8c19d9eccf408a443fa2bf668af261dcd0 
1/*
2 * Copyright (C) 2007 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
17package android.widget.focus;
18
19import android.widget.focus.RequestFocus;
20import com.android.frameworks.coretests.R;
21
22import android.os.Handler;
23import android.test.ActivityInstrumentationTestCase;
24import android.test.suitebuilder.annotation.LargeTest;
25import android.test.suitebuilder.annotation.MediumTest;
26import android.widget.Button;
27import android.util.AndroidRuntimeException;
28
29/**
30 * {@link RequestFocusTest} is set up to exercise cases where the views that
31 * have focus become invisible or GONE.
32 */
33public class RequestFocusTest extends ActivityInstrumentationTestCase<RequestFocus> {
34
35    private Button mTopLeftButton;
36    private Button mBottomLeftButton;
37    private Button mTopRightButton;
38    private Button mBottomRightButton;
39    private Handler mHandler;
40
41    public RequestFocusTest() {
42        super("com.android.frameworks.coretests", RequestFocus.class);
43    }
44
45    @Override
46    public void setUp() throws Exception {
47        super.setUp();
48
49        final RequestFocus a = getActivity();
50        mHandler = a.getHandler();
51        mTopLeftButton = (Button) a.findViewById(R.id.topLeftButton);
52        mBottomLeftButton = (Button) a.findViewById(R.id.bottomLeftButton);
53        mTopRightButton = (Button) a.findViewById(R.id.topRightButton);
54        mBottomRightButton = (Button) a.findViewById(R.id.bottomRightButton);
55    }
56
57    // Test that setUp did what we expect it to do.  These asserts
58    // can't go in SetUp, or the test will hang.
59    @MediumTest
60    public void testSetUpConditions() throws Exception {
61        assertNotNull(mHandler);
62        assertNotNull(mTopLeftButton);
63        assertNotNull(mTopRightButton);
64        assertNotNull(mBottomLeftButton);
65        assertNotNull(mBottomRightButton);
66        assertTrue("requestFocus() should work from onCreate.", mBottomRightButton.hasFocus());
67    }
68
69    // Test that a posted requestFocus works.
70    @LargeTest
71    public void testPostedRequestFocus() throws Exception {
72        mHandler.post(new Runnable() { public void run() {
73            mBottomLeftButton.requestFocus();
74        }});
75        synchronized(this) {
76            try {
77                wait(500);
78            } catch (InterruptedException e) {
79                // Don't care.
80            }
81        }
82        assertTrue("Focus should move to bottom left", mBottomLeftButton.hasFocus());
83    }
84
85    // Test that a requestFocus from the wrong thread fails.
86    @MediumTest
87    public void testWrongThreadRequestFocusFails() throws Exception {
88        try {
89            mTopRightButton.requestFocus();
90            fail("requestFocus from wrong thread should raise exception.");
91        } catch (AndroidRuntimeException e) {
92            // Expected.  The actual exception is not public, so we can't catch it.
93            assertEquals("android.view.ViewAncestor$CalledFromWrongThreadException",
94                         e.getClass().getName());
95        }
96    }
97}
98