| /* |
| * 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 com.android.server.net.ipmemorystore; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import android.net.ipmemorystore.NetworkAttributes; |
| |
| import androidx.test.filters.SmallTest; |
| import androidx.test.runner.AndroidJUnit4; |
| |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| import java.lang.reflect.Field; |
| import java.net.Inet4Address; |
| import java.net.UnknownHostException; |
| import java.util.Arrays; |
| |
| /** Unit tests for {@link NetworkAttributes}. */ |
| @SmallTest |
| @RunWith(AndroidJUnit4.class) |
| public class NetworkAttributesTest { |
| private static final String WEIGHT_FIELD_NAME_PREFIX = "WEIGHT_"; |
| private static final float EPSILON = 0.0001f; |
| |
| // This is running two tests to make sure the total weight is the sum of all weights. To be |
| // sure this is not fireproof, but you'd kind of need to do it on purpose to pass. |
| @Test |
| public void testTotalWeight() throws IllegalAccessException, UnknownHostException { |
| // Make sure that TOTAL_WEIGHT is equal to the sum of the fields starting with WEIGHT_ |
| float sum = 0f; |
| final Field[] fieldList = NetworkAttributes.class.getDeclaredFields(); |
| for (final Field field : fieldList) { |
| if (!field.getName().startsWith(WEIGHT_FIELD_NAME_PREFIX)) continue; |
| field.setAccessible(true); |
| sum += (float) field.get(null); |
| } |
| assertEquals(sum, NetworkAttributes.TOTAL_WEIGHT, EPSILON); |
| |
| // Use directly the constructor with all attributes, and make sure that when compared |
| // to itself the score is a clean 1.0f. |
| final NetworkAttributes na = |
| new NetworkAttributes( |
| (Inet4Address) Inet4Address.getByAddress(new byte[] {1, 2, 3, 4}), |
| "some hint", |
| Arrays.asList(Inet4Address.getByAddress(new byte[] {5, 6, 7, 8}), |
| Inet4Address.getByAddress(new byte[] {9, 0, 1, 2})), |
| 98); |
| assertEquals(1.0f, na.getNetworkGroupSamenessConfidence(na), EPSILON); |
| } |
| } |