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.listview.arrowscroll; 18 19import android.test.ActivityInstrumentationTestCase; 20import android.test.suitebuilder.annotation.LargeTest; 21import android.test.suitebuilder.annotation.MediumTest; 22import android.test.suitebuilder.annotation.Suppress; 23import android.view.KeyEvent; 24import android.view.View; 25import android.widget.ListView; 26import android.widget.listview.ListOfThinItems; 27 28public class ListOfThinItemsTest extends ActivityInstrumentationTestCase<ListOfThinItems> { 29 private ListView mListView; 30 31 public ListOfThinItemsTest() { 32 super("com.android.frameworks.coretests", ListOfThinItems.class); 33 } 34 35 @Override 36 protected void setUp() throws Exception{ 37 super.setUp(); 38 mListView = getActivity().getListView(); 39 } 40 41 @MediumTest 42 @Suppress // Failing. 43 public void testPreconditions() { 44 assertNotNull(mListView); 45 assertTrue("need item height less than fading edge length", 46 mListView.getSelectedView().getHeight() < mListView.getVerticalFadingEdgeLength()); 47 assertTrue("need items off screen", 48 mListView.getChildCount() < mListView.getAdapter().getCount()); 49 } 50 51 @LargeTest 52 public void testScrollToBottom() { 53 // focus the listview 54 getActivity().runOnUiThread(() -> mListView.requestFocus()); 55 getInstrumentation().waitForIdleSync(); 56 57 final int numItems = mListView.getAdapter().getCount(); 58 final int listBottom = mListView.getHeight() - mListView.getListPaddingBottom(); 59 for (int i = 0; i < numItems; i++) { 60 assertEquals("wrong selection at position " + i, 61 i, mListView.getSelectedItemPosition()); 62 final int bottomFadingEdge = listBottom - mListView.getVerticalFadingEdgeLength(); 63 final View lastChild = mListView.getChildAt(mListView.getChildCount() - 1); 64 final int lastVisiblePosition = lastChild.getId(); 65 66 67 int bottomThreshold = (lastVisiblePosition < mListView.getAdapter().getCount() - 1) ? 68 bottomFadingEdge : listBottom; 69 70 String prefix = "after " + i + " down presses, "; 71 72 assertTrue(prefix + "selected item is below bottom threshold (fading edge or bottom as " + 73 "appropriate)", 74 mListView.getSelectedView().getBottom() <= bottomThreshold); 75 assertTrue(prefix + "first item in list must be at very top or just above", 76 mListView.getChildAt(0).getTop() <= 0); 77 assertTrue(prefix + "last item in list should be at very bottom or just below", 78 lastChild.getBottom() >= listBottom); 79 sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); 80 } 81 } 82 83 @LargeTest 84 public void testScrollToTop() { 85 // focus the listview 86 getActivity().runOnUiThread(() -> mListView.requestFocus()); 87 getInstrumentation().waitForIdleSync(); 88 89 final int numItems = mListView.getAdapter().getCount(); 90 91 for (int i = 0; i < numItems - 1; i++) { 92 sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); 93 } 94 assertEquals("should have moved to last position", 95 numItems - 1, mListView.getSelectedItemPosition()); 96 97 int listTop = mListView.getListPaddingTop(); 98 final int listBottom = mListView.getHeight() - mListView.getListPaddingBottom(); 99 100 for (int i = 0; i < numItems; i++) { 101 int expectedPostion = numItems - (i + 1); 102 assertEquals("wrong selection at position " + expectedPostion, 103 expectedPostion, mListView.getSelectedItemPosition()); 104 final int topFadingEdge = listTop + mListView.getVerticalFadingEdgeLength(); 105 final View firstChild = mListView.getChildAt(0); 106 final View lastChild = mListView.getChildAt(mListView.getChildCount() - 1); 107 final int firstVisiblePosition = firstChild.getId(); 108 109 110 int topThreshold = (firstVisiblePosition > 0) ? 111 topFadingEdge : listTop; 112 113 String prefix = "after " + i + " up presses, "; 114 115 assertTrue(prefix + "selected item is above top threshold (fading edge or top as " + 116 "appropriate)", 117 mListView.getSelectedView().getTop() >= topThreshold); 118 assertTrue(prefix + "first item in list must be at very top or just above", 119 firstChild.getTop() <= 0); 120 assertTrue(prefix + "last item in list should be at very bottom or just below", 121 lastChild.getBottom() >= listBottom); 122 sendKeys(KeyEvent.KEYCODE_DPAD_UP); 123 } 124 } 125} 126