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SampleTests.java
/* * Copyright (C) 2013 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.example.android.elevationdrag.tests; import com.example.android.elevationdrag.*; import android.test.ActivityInstrumentationTestCase2; import android.test.TouchUtils; import android.view.Gravity; import android.view.View; /** * Tests for ElevationDrag sample. */ public class SampleTests extends ActivityInstrumentationTestCase2
{ private MainActivity mTestActivity; private ElevationDragFragment mTestFragment; private View mFloatingShape; private View mDragFrame; public SampleTests() { super(MainActivity.class); } @Override protected void setUp() throws Exception { super.setUp(); // Starts the activity under test using the default Intent with: // action = {@link Intent#ACTION_MAIN} // flags = {@link Intent#FLAG_ACTIVITY_NEW_TASK} // All other fields are null or empty. mTestActivity = getActivity(); mTestFragment = (ElevationDragFragment) mTestActivity.getSupportFragmentManager().getFragments().get(1); mFloatingShape = mTestActivity.findViewById(R.id.circle); mDragFrame = mTestActivity.findViewById(R.id.main_layout); } /** * Test if the test fixture has been set up correctly. */ public void testPreconditions() { //Try to add a message to add context to your assertions. These messages will be shown if //a tests fails and make it easy to understand why a test failed assertNotNull("mTestActivity is null", mTestActivity); assertNotNull("mTestFragment is null", mTestFragment); assertNotNull("mFloatingShape is null", mFloatingShape); assertNotNull("mDragFrame is null", mDragFrame); // Check that the view is not raised yet. assertEquals(mFloatingShape.getZ(), 0f); } /** * Test that the floating shape can be dragged and that it's raised while dragging. */ public void testDrag() { final float initialX = mFloatingShape.getX(); // Drag the shape to the left edge. TouchUtils.dragViewToX(this, mFloatingShape, Gravity.CENTER, 0); // Check that the view is dragging and that it's been raised. // We need to use runOnMainSync here as fake dragging uses waitForIdleSync(). getInstrumentation().runOnMainSync(new Runnable() { @Override public void run() { // Check that the view has moved. float deltaX = mFloatingShape.getX() - initialX; assertTrue(Math.abs(deltaX) > 0f); // Check that the view is raised. assertTrue(mFloatingShape.getZ() > 0f); } }); } }