| /* |
| * Copyright (C) 2019 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.net.shared; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.lang.reflect.Modifier; |
| import java.util.Arrays; |
| |
| /** |
| * Utility classes to write tests for stable AIDL parceling/unparceling |
| */ |
| public final class ParcelableTestUtil { |
| |
| /** |
| * Verifies that the number of nonstatic fields in a class equals a given count. |
| * |
| * <p>This assertion serves as a reminder to update test code around it if fields are added |
| * after the test is written. |
| * @param count Expected number of nonstatic fields in the class. |
| * @param clazz Class to test. |
| */ |
| public static <T> void assertFieldCountEquals(int count, Class<T> clazz) { |
| assertEquals(count, Arrays.stream(clazz.getDeclaredFields()) |
| .filter(f -> !Modifier.isStatic(f.getModifiers())).count()); |
| } |
| } |