Android example source code file (RecycleAccessibilityEventTest.java)

This example Android source code file (RecycleAccessibilityEventTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

accessibilityevent, android, class_name, content, content_description, current_item_index, from_index, item_count, mediumtest, recycleaccessibilityeventtest, removed_count, some, string, test, testcase, text, ui, view

The RecycleAccessibilityEventTest.java Android example source code

/**
 * Copyright (C) 2009 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 android.view.accessibility;

import android.test.suitebuilder.annotation.MediumTest;
import android.view.accessibility.AccessibilityEvent;

import junit.framework.TestCase;

/**
 * This class exercises the caching and recycling of {@link AccessibilityEvent}s.
 */
public class RecycleAccessibilityEventTest extends TestCase {

    private static final String CLASS_NAME = "foo.bar.baz.Test";
    private static final String PACKAGE_NAME = "foo.bar.baz";
    private static final String TEXT = "Some stuff";

    private static final String CONTENT_DESCRIPTION = "Content description";
    private static final int ITEM_COUNT = 10;
    private static final int CURRENT_ITEM_INDEX = 1;

    private static final int FROM_INDEX = 1;
    private static final int ADDED_COUNT = 2;
    private static final int REMOVED_COUNT = 1;

    /**
     * If an {@link AccessibilityEvent} is marshaled/unmarshaled correctly
     */
    @MediumTest
    public void testAccessibilityEventViewTextChangedType() {
        AccessibilityEvent first =
            AccessibilityEvent.obtain(AccessibilityEvent.TYPE_VIEW_TEXT_CHANGED);
        assertNotNull(first);

        first.setClassName(CLASS_NAME);
        first.setPackageName(PACKAGE_NAME);
        first.getText().add(TEXT);
        first.setFromIndex(FROM_INDEX);
        first.setAddedCount(ADDED_COUNT);
        first.setRemovedCount(REMOVED_COUNT);
        first.setChecked(true);
        first.setContentDescription(CONTENT_DESCRIPTION);
        first.setItemCount(ITEM_COUNT);
        first.setCurrentItemIndex(CURRENT_ITEM_INDEX);
        first.setEnabled(true);
        first.setPassword(true);

        first.recycle();

        assertNotNull(first);
        assertNull(first.getClassName());
        assertNull(first.getPackageName());
        assertEquals(0, first.getText().size());
        assertFalse(first.isChecked());
        assertNull(first.getContentDescription());
        assertEquals(0, first.getItemCount());
        assertEquals(AccessibilityEvent.INVALID_POSITION, first.getCurrentItemIndex());
        assertFalse(first.isEnabled());
        assertFalse(first.isPassword());
        assertEquals(0, first.getFromIndex());
        assertEquals(0, first.getAddedCount());
        assertEquals(0, first.getRemovedCount());

        // get another event from the pool (this must be the recycled first)
        AccessibilityEvent second = AccessibilityEvent.obtain();
        assertEquals(first, second);
    }
}