1 /*
2  * Copyright (C) 2022 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 android.compilation.cts.appusingotherapp;
18 
19 import static com.google.common.truth.Truth.assertThat;
20 
21 import android.content.Context;
22 
23 import androidx.test.core.app.ApplicationProvider;
24 import androidx.test.filters.SmallTest;
25 import androidx.test.runner.AndroidJUnit4;
26 
27 import org.junit.Test;
28 import org.junit.runner.RunWith;
29 
30 import java.lang.reflect.Method;
31 
32 /**
33  * An instrumentation test that uses another app.
34  */
35 @SmallTest
36 @RunWith(AndroidJUnit4.class)
37 public class UsingOtherAppTest {
38     private static final String TAG = "UsingOtherAppTest";
39 
40     @Test
useOtherApp()41     public void useOtherApp() throws Exception {
42         Context context = ApplicationProvider.getApplicationContext();
43         Context otherAppContext =
44                 context.createPackageContext("android.compilation.cts.appusedbyotherapp",
45                         Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY);
46         ClassLoader classLoader = otherAppContext.getClassLoader();
47         Class<?> c = classLoader.loadClass("android.compilation.cts.appusedbyotherapp.MyActivity");
48         Method m = c.getMethod("publicMethod");
49         String ret = (String) m.invoke(null /* obj */);
50         assertThat(ret).isEqualTo("foo");
51     }
52 }
53