| /* |
| * Copyright 2017 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 static junit.framework.Assert.assertEquals; |
| import static junit.framework.Assert.assertFalse; |
| import static junit.framework.Assert.assertTrue; |
| |
| import android.os.Parcel; |
| import android.support.test.runner.AndroidJUnit4; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Modifier; |
| |
| /** |
| * AccessibilityEvent is public, so CTS covers it pretty well. Verifying hidden methods here. |
| */ |
| @RunWith(AndroidJUnit4.class) |
| public class AccessibilityEventTest { |
| // The number of fields tested in the corresponding CTS AccessibilityEventTest: |
| // See the CTS tests for AccessibilityRecord: |
| // fullyPopulateAccessibilityEvent, assertEqualsAccessiblityEvent, |
| // and assertAccessibilityEventCleared |
| |
| /** The number of properties of the {@link AccessibilityEvent} class. */ |
| private static final int A11Y_EVENT_NON_STATIC_FIELD_COUNT = 32; |
| |
| // The number of fields tested in the corresponding CTS AccessibilityRecordTest: |
| // assertAccessibilityRecordCleared, fullyPopulateAccessibilityRecord, |
| // and assertEqualAccessibilityRecord |
| |
| /** The number of properties of the {@link AccessibilityRecord} class. */ |
| private static final int A11Y_RECORD_NON_STATIC_FIELD_COUNT = 24; |
| |
| @Test |
| public void testImportantForAccessibiity_getSetWorkAcrossParceling() { |
| AccessibilityEvent event = AccessibilityEvent.obtain(); |
| event.setImportantForAccessibility(true); |
| assertTrue(copyEventViaParcel(event).isImportantForAccessibility()); |
| |
| event.setImportantForAccessibility(false); |
| assertFalse(copyEventViaParcel(event).isImportantForAccessibility()); |
| } |
| |
| @Test |
| public void testSouceNodeId_getSetWorkAcrossParceling() { |
| final long sourceNodeId = 0x1234567890ABCDEFL; |
| AccessibilityEvent event = AccessibilityEvent.obtain(); |
| event.setSourceNodeId(sourceNodeId); |
| assertEquals(sourceNodeId, copyEventViaParcel(event).getSourceNodeId()); |
| } |
| |
| @Test |
| public void testWindowChanges_getSetWorkAcrossParceling() { |
| final int windowChanges = AccessibilityEvent.WINDOWS_CHANGE_TITLE |
| | AccessibilityEvent.WINDOWS_CHANGE_ACTIVE |
| | AccessibilityEvent.WINDOWS_CHANGE_FOCUSED; |
| AccessibilityEvent event = AccessibilityEvent.obtain(); |
| event.setWindowChanges(windowChanges); |
| assertEquals(windowChanges, copyEventViaParcel(event).getWindowChanges()); |
| } |
| |
| @Test |
| public void dontForgetToUpdateA11yRecordCtsParcelingTestWhenYouAddNewFields() { |
| AccessibilityEventTest.assertNoNewNonStaticFieldsAdded( |
| AccessibilityRecord.class, A11Y_RECORD_NON_STATIC_FIELD_COUNT); |
| } |
| |
| @Test |
| public void dontForgetToUpdateA11yEventCtsParcelingTestWhenYouAddNewFields() { |
| AccessibilityEventTest.assertNoNewNonStaticFieldsAdded( |
| AccessibilityEvent.class, A11Y_EVENT_NON_STATIC_FIELD_COUNT); |
| } |
| |
| private AccessibilityEvent copyEventViaParcel(AccessibilityEvent event) { |
| Parcel parcel = Parcel.obtain(); |
| event.writeToParcel(parcel, 0); |
| parcel.setDataPosition(0); |
| return AccessibilityEvent.CREATOR.createFromParcel(parcel); |
| } |
| |
| /** |
| * Asserts that no new fields have been added, so we are testing marshaling |
| * of all such. |
| */ |
| static void assertNoNewNonStaticFieldsAdded(Class<?> clazz, int expectedCount) { |
| int nonStaticFieldCount = 0; |
| |
| while (clazz != Object.class) { |
| for (Field field : clazz.getDeclaredFields()) { |
| if ((field.getModifiers() & Modifier.STATIC) == 0) { |
| nonStaticFieldCount++; |
| } |
| } |
| clazz = clazz.getSuperclass(); |
| } |
| |
| String message = "New fields have been added, so add code to test marshaling them."; |
| assertEquals(message, expectedCount, nonStaticFieldCount); |
| } |
| } |