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.test;
18
19import android.app.Activity;
20import android.view.IWindowManager;
21import android.os.ServiceManager;
22
23/**
24 * If you would like to test a single activity with an
25 * {@link android.test.InstrumentationTestCase}, this provides some of the boiler plate to
26 * launch and finish the activity in {@link #setUp} and {@link #tearDown}.
27 *
28 * This launches the activity only once for the entire class instead of doing it
29 * in every setup / teardown call.
30 */
31public abstract class SingleLaunchActivityTestCase<T extends Activity>
32        extends InstrumentationTestCase {
33
34    String mPackage;
35    Class<T> mActivityClass;
36    private static int sTestCaseCounter = 0;
37    private static boolean sActivityLaunchedFlag = false;
38
39    /**
40     * <b>NOTE:</b> The parameter <i>pkg</i> must refer to the package identifier of the
41     * package hosting the activity to be launched, which is specified in the AndroidManifest.xml
42     * file.  This is not necessarily the same as the java package name.
43     *
44     * @param pkg The package hosting the activity to be launched.
45     * @param activityClass The activity to test.
46     */
47    public SingleLaunchActivityTestCase(String pkg, Class<T> activityClass) {
48        mPackage = pkg;
49        mActivityClass = activityClass;
50        sTestCaseCounter ++;
51    }
52
53    /**
54     * The activity that will be set up for use in each test method.
55     */
56    private static Activity sActivity;
57
58    public T getActivity() {
59        return (T) sActivity;
60    }
61
62    @Override
63    protected void setUp() throws Exception {
64        super.setUp();
65        // If it is the first test case, launch the activity.
66        if (!sActivityLaunchedFlag) {
67            // by default, not in touch mode
68            getInstrumentation().setInTouchMode(false);
69            sActivity = launchActivity(mPackage, mActivityClass, null);
70            sActivityLaunchedFlag = true;
71        }
72    }
73
74    @Override
75    protected void tearDown() throws Exception {
76        // If it is the last test case, call finish on the activity.
77        sTestCaseCounter --;
78        if (sTestCaseCounter == 0) {
79            sActivity.finish();
80        }
81        super.tearDown();
82    }
83
84    public void testActivityTestCaseSetUpProperly() throws Exception {
85        assertNotNull("activity should be launched successfully", sActivity);
86    }
87}
88