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 17 package android.widget.scroll; 18 19 import android.widget.scroll.ScrollViewButtonsAndLabels; 20 21 import android.test.ActivityInstrumentationTestCase; 22 import android.test.suitebuilder.annotation.LargeTest; 23 import android.test.suitebuilder.annotation.MediumTest; 24 import android.widget.Button; 25 import android.widget.LinearLayout; 26 import android.widget.ScrollView; 27 import android.view.KeyEvent; 28 29 30 public class ScrollViewButtonsAndLabelsTest 31 extends ActivityInstrumentationTestCase<ScrollViewButtonsAndLabels> { 32 33 private ScrollView mScrollView; 34 private LinearLayout mLinearLayout; 35 private int mScreenBottom; 36 private int mScreenTop; 37 38 public ScrollViewButtonsAndLabelsTest() { 39 super("com.android.frameworks.coretests", 40 ScrollViewButtonsAndLabels.class); 41 } 42 43 @Override 44 public void setUp() throws Exception { 45 super.setUp(); 46 mScrollView = getActivity().getScrollView(); 47 mLinearLayout = getActivity().getLinearLayout(); 48 49 int origin[] = {0, 0}; 50 mScrollView.getLocationOnScreen(origin); 51 mScreenTop = origin[1]; 52 mScreenBottom = origin[1] + mScrollView.getHeight(); 53 } 54 55 @MediumTest 56 public void testPreconditions() { 57 assertTrue("vertical fading edge width needs to be non-zero for this " 58 + "test to be worth anything", 59 mScrollView.getVerticalFadingEdgeLength() > 0); 60 } 61 62 // moving down to something off screen should move the element 63 // onto the screen just above the vertical fading edge 64 @LargeTest 65 public void testArrowScrollDownOffScreenVerticalFadingEdge() { 66 67 int offScreenIndex = findFirstButtonOffScreenTop2Bottom(); 68 Button firstButtonOffScreen = getActivity().getButton(offScreenIndex); 69 70 for (int i = 0; i < offScreenIndex; i++) { 71 sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); 72 } 73 getInstrumentation().waitForIdleSync(); 74 assertTrue(firstButtonOffScreen.hasFocus()); 75 76 assertTrue("the button we've moved to off screen must not be the last " 77 + "button in the scroll view for this test to work (since we " 78 + "are expecting the fading edge to be there).", 79 offScreenIndex < getActivity().getNumButtons()); 80 81 // now we are at the first button off screen 82 int buttonLoc[] = {0, 0}; 83 firstButtonOffScreen.getLocationOnScreen(buttonLoc); 84 int buttonBottom = buttonLoc[1] + firstButtonOffScreen.getHeight(); 85 86 int verticalFadingEdgeLength = mScrollView 87 .getVerticalFadingEdgeLength(); 88 assertEquals("bottom of button should be verticalFadingEdgeLength " 89 + "above the bottom of the screen", 90 buttonBottom, mScreenBottom - verticalFadingEdgeLength); 91 } 92 93 // there should be no offset for vertical fading edge 94 // if the item is the last one on screen 95 @LargeTest 96 public void testArrowScrollDownToBottomElementOnScreen() { 97 98 int numGroups = getActivity().getNumButtons(); 99 Button lastButton = getActivity().getButton(numGroups - 1); 100 101 assertEquals("button needs to be at the very bottom of the layout for " 102 + "this test to work", 103 mLinearLayout.getHeight(), lastButton.getBottom()); 104 105 // move down to last button 106 for (int i = 0; i < numGroups; i++) { 107 sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); 108 } 109 getInstrumentation().waitForIdleSync(); 110 assertTrue("last button should have focus", lastButton.hasFocus()); 111 112 int buttonLoc[] = {0, 0}; 113 lastButton.getLocationOnScreen(buttonLoc); 114 int buttonBottom = buttonLoc[1] + lastButton.getHeight(); 115 assertEquals("button should be at very bottom of screen", 116 mScreenBottom, buttonBottom); 117 } 118 119 @LargeTest 120 public void testArrowScrollUpOffScreenVerticalFadingEdge() { 121 // get to bottom button 122 int numGroups = goToBottomButton(); 123 124 // go up to first off screen button 125 int offScreenIndex = findFirstButtonOffScreenBottom2Top(); 126 Button offScreenButton = getActivity().getButton(offScreenIndex); 127 int clicksToOffScreenIndex = numGroups - offScreenIndex - 1; 128 for (int i = 0; i < clicksToOffScreenIndex; i++) { 129 sendKeys(KeyEvent.KEYCODE_DPAD_UP); 130 } 131 getInstrumentation().waitForIdleSync(); 132 assertTrue("we want to be at offScreenButton", offScreenButton.hasFocus()); 133 134 // top should take into account fading edge 135 int buttonLoc[] = {0, 0}; 136 offScreenButton.getLocationOnScreen(buttonLoc); 137 assertEquals("top should take into account fading edge", 138 mScreenTop + mScrollView.getVerticalFadingEdgeLength(), buttonLoc[1]); 139 } 140 141 142 @LargeTest 143 public void testArrowScrollUpToTopElementOnScreen() { 144 // get to bottom button 145 int numButtons = goToBottomButton(); 146 147 // go back to the top 148 for (int i = 0; i < numButtons; i++) { 149 sendKeys(KeyEvent.KEYCODE_DPAD_UP); 150 } 151 getInstrumentation().waitForIdleSync(); 152 153 Button topButton = getActivity().getButton(0); 154 assertTrue("should be back at top button", topButton.hasFocus()); 155 156 157 int buttonLoc[] = {0, 0}; 158 topButton.getLocationOnScreen(buttonLoc); 159 assertEquals("top of top button should be at top of screen; no need to take" 160 + " into account vertical fading edge.", 161 mScreenTop, buttonLoc[1]); 162 } 163 164 private int goToBottomButton() { 165 int numButtons = getActivity().getNumButtons(); 166 Button lastButton = getActivity().getButton(numButtons - 1); 167 168 for (int i = 0; i < numButtons; i++) { 169 sendKeys(KeyEvent.KEYCODE_DPAD_DOWN); 170 } 171 getInstrumentation().waitForIdleSync(); 172 assertTrue("we want to be at the last button", lastButton.hasFocus()); 173 return numButtons; 174 } 175 176 // search from top to bottom for the first button off screen 177 private int findFirstButtonOffScreenTop2Bottom() { 178 int origin[] = {0, 0}; 179 mScrollView.getLocationOnScreen(origin); 180 int screenHeight = mScrollView.getHeight(); 181 182 for (int i = 0; i < getActivity().getNumButtons(); i++) { 183 184 int buttonLoc[] = {0, 0}; 185 Button button = getActivity().getButton(i); 186 button.getLocationOnScreen(buttonLoc); 187 188 if (buttonLoc[1] - origin[1] > screenHeight) { 189 return i; 190 } 191 } 192 fail("couldn't find first button off screen"); 193 return -1; // this won't execute, but the compiler needs it 194 } 195 196 private int findFirstButtonOffScreenBottom2Top() { 197 int origin[] = {0, 0}; 198 mScrollView.getLocationOnScreen(origin); 199 200 for (int i = getActivity().getNumButtons() - 1; i >= 0; i--) { 201 202 int buttonLoc[] = {0, 0}; 203 Button button = getActivity().getButton(i); 204 button.getLocationOnScreen(buttonLoc); 205 206 if (buttonLoc[1] < 0) { 207 return i; 208 } 209 } 210 fail("couldn't find first button off screen"); 211 return -1; // this won't execute, but the compiler needs it 212 } 213 214 } 215
