1 /* 2 * Copyright (C) 2008 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.tests.testprojecttest.lib; 18 19 import android.test.ActivityInstrumentationTestCase2; 20 import android.widget.TextView; 21 22 import androidx.test.filters.MediumTest; 23 24 /** 25 * An example of an {@link ActivityInstrumentationTestCase2} of a specific activity {@link Focus2}. 26 * By virtue of extending {@link ActivityInstrumentationTestCase2}, the target activity is automatically 27 * launched and finished before and after each test. This also extends 28 * {@link android.test.InstrumentationTestCase}, which provides 29 * access to methods for sending events to the target activity, such as key and 30 * touch events. See {@link #sendKeys}. 31 * 32 * In general, {@link android.test.InstrumentationTestCase}s and {@link ActivityInstrumentationTestCase2}s 33 * are heavier weight functional tests available for end to end testing of your 34 * user interface. When run via a {@link android.test.InstrumentationTestRunner}, 35 * the necessary {@link android.app.Instrumentation} will be injected for you to 36 * user via {@link #getInstrumentation} in your tests. 37 * 38 * See {@link com.example.android.apis.AllTests} for documentation on running 39 * all tests and individual tests in this application. 40 */ 41 public class LibActivityTest extends ActivityInstrumentationTestCase2<LibActivity> { 42 43 private TextView mTextView; 44 45 /** 46 * Creates an {@link ActivityInstrumentationTestCase2} that tests the {@link Focus2} activity. 47 */ LibActivityTest()48 public LibActivityTest() { 49 super(LibActivity.class); 50 } 51 52 @Override setUp()53 protected void setUp() throws Exception { 54 super.setUp(); 55 final LibActivity a = getActivity(); 56 // ensure a valid handle to the activity has been returned 57 assertNotNull(a); 58 mTextView = (TextView) a.findViewById(R.id.text); 59 } 60 61 /** 62 * The name 'test preconditions' is a convention to signal that if this 63 * test doesn't pass, the test case was not set up properly and it might 64 * explain any and all failures in other tests. This is not guaranteed 65 * to run before other tests, as junit uses reflection to find the tests. 66 */ 67 @MediumTest testPreconditions()68 public void testPreconditions() { 69 assertNotNull(mTextView); 70 } 71 } 72