/*
* Copyright (C) 2015 Google Inc.
*
* 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.android.switchaccess.builders;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertTrue;
import android.annotation.TargetApi;
import android.content.Context;
import android.graphics.Rect;
import android.os.Build;
import android.support.v4.view.accessibility.AccessibilityNodeInfoCompat;
import android.view.accessibility.AccessibilityNodeInfo;
import com.android.switchaccess.*;
import com.android.switchaccess.test.ShadowAccessibilityNodeInfo;
import com.android.switchaccess.treebuilding.LinearScanTreeBuilder;
import com.android.talkback.BuildConfig;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.robolectric.RobolectricGradleTestRunner;
import org.robolectric.RuntimeEnvironment;
import org.robolectric.annotation.Config;
import org.robolectric.internal.ShadowExtractor;
/**
* Robolectric tests for LinearScanTreeBuilder
*/
@Config(
constants = BuildConfig.class,
manifest = Config.NONE,
sdk = 21,
shadows = {
ShadowAccessibilityNodeInfo.class,
ShadowAccessibilityNodeInfo.ShadowAccessibilityAction.class})
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
@RunWith(RobolectricGradleTestRunner.class)
public class LinearScanTreeBuilderTest {
private static final Rect N0_BOUNDS = new Rect(10, 10, 90, 20);
private static final Rect N1_BOUNDS = new Rect(10, 30, 90, 80);
private static final Rect N10_BOUNDS = new Rect(10, 30, 90, 50);
private static final Rect N11_BOUNDS = new Rect(10, 60, 90, 80);
/*
* We build a simple tree of AccessibilityNodeInfos
*
* root0
* / \
* n0 n1
* / \
* n10 n11
* n0, n10, and n11 are clickable; root and n1 are not.
* n0 is located above n1. n10 is located above n11, and both are inside n1.
*/
private AccessibilityNodeInfo mRoot0, mN0, mN1, mN10, mN11;
private final Context mContext = RuntimeEnvironment.application.getApplicationContext();
private final LinearScanTreeBuilder mLinearScanTreeBuilder =
new LinearScanTreeBuilder(mContext);
@Before
@TargetApi(Build.VERSION_CODES.LOLLIPOP)
public void setUp() {
ShadowAccessibilityNodeInfo.resetObtainedInstances();
/* Build accessibility node tree */
mRoot0 = AccessibilityNodeInfo.obtain();
mRoot0.setVisibleToUser(true);
mRoot0.setContentDescription("root0");
mN0 = AccessibilityNodeInfo.obtain();
mN0.setVisibleToUser(true);
mN0.setClickable(true);
mN0.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_CLICK);
mN0.setContentDescription("mN0");
mN0.setBoundsInScreen(N0_BOUNDS);
mN1 = AccessibilityNodeInfo.obtain();
mN1.setVisibleToUser(true);
mN1.setContentDescription("mN1");
mN1.setBoundsInScreen(N1_BOUNDS);
mN10 = AccessibilityNodeInfo.obtain();
mN10.setClickable(true);
mN10.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_CLICK);
mN10.setVisibleToUser(true);
mN10.setContentDescription("mN10");
mN10.setBoundsInScreen(N10_BOUNDS);
mN11 = AccessibilityNodeInfo.obtain();
mN11.setClickable(true);
mN11.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_CLICK);
mN11.setVisibleToUser(true);
ShadowAccessibilityNodeInfo shadowN11 =
(ShadowAccessibilityNodeInfo) ShadowExtractor.extract(mN11);
shadowN11.setContentDescription("mN11");
shadowN11.setBoundsInScreen(N11_BOUNDS);
mRoot0.setClickable(false);
mRoot0.setFocusable(false);
ShadowAccessibilityNodeInfo shadowRoot =
(ShadowAccessibilityNodeInfo) ShadowExtractor.extract(mRoot0);
shadowRoot.addChild(mN0);
shadowRoot.addChild(mN1);
mN1.setClickable(false);
final ShadowAccessibilityNodeInfo shadowN1 =
(ShadowAccessibilityNodeInfo) ShadowExtractor.extract(mN1);
shadowN1.addChild(mN10);
shadowN1.addChild(mN11);
}
@After
public void tearDown() {
mRoot0.recycle();
mN0.recycle();
mN1.recycle();
mN10.recycle();
mN11.recycle();
assertFalse(ShadowAccessibilityNodeInfo.areThereUnrecycledNodes(true));
ShadowAccessibilityNodeInfo.resetObtainedInstances();
}
@Test
public void buildTreeWithNoActions_treeHasOnlyClearFocusNode() {
AccessibilityNodeInfo info = AccessibilityNodeInfo.obtain();
info.setVisibleToUser(true);
info.setClickable(false);
info.setContentDescription("buildTreeWithNoActions_treeHasOnlyClearFocusNode info");
info.setBoundsInScreen(N0_BOUNDS);
OptionScanNode tree = mLinearScanTreeBuilder
.addViewHierarchyToTree(new SwitchAccessNodeCompat(info), null);
assertTrue(tree instanceof ClearFocusNode);
info.recycle();
tree.recycle();
}
@Test
public void buildFullTree_hasExpectedStructure() {
CharSequence globalActionLabel = "global action label";
OptionScanNode treeRoot = mLinearScanTreeBuilder
.addViewHierarchyToTree(new SwitchAccessNodeCompat(mRoot0),
new GlobalActionNode(0, null, globalActionLabel));
assertTrue(treeRoot instanceof OptionScanSelectionNode);
OptionScanSelectionNode selectionNodeRoot = (OptionScanSelectionNode) treeRoot;
assertEquals(2, selectionNodeRoot.getChildCount());
assertTrue(selectionNodeRoot.getChild(0).getRectsForNodeHighlight().contains(N0_BOUNDS));
OptionScanNode n1Node = selectionNodeRoot.getChild(1);
assertTrue(n1Node instanceof OptionScanSelectionNode);
OptionScanSelectionNode selectionNodeN1 = (OptionScanSelectionNode) n1Node;
assertEquals(2, selectionNodeN1.getChildCount());
assertTrue(selectionNodeN1.getChild(0).getRectsForNodeHighlight().contains(N10_BOUNDS));
OptionScanNode n11Node = selectionNodeN1.getChild(1);
assertTrue(n11Node instanceof OptionScanSelectionNode);
OptionScanSelectionNode selectionNodeN11 = (OptionScanSelectionNode) n11Node;
assertEquals(2, selectionNodeN11.getChildCount());
assertTrue(selectionNodeN11.getChild(0).getRectsForNodeHighlight().contains(N11_BOUNDS));
OptionScanNode globalActionNode = selectionNodeN11.getChild(1);
assertTrue(globalActionNode instanceof GlobalActionNode);
treeRoot.recycle();
}
}