| /* |
| * Copyright (C) 2020 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.connectivity |
| |
| import android.net.NetworkCapabilities |
| import android.net.NetworkRequest |
| import androidx.test.filters.SmallTest |
| import androidx.test.runner.AndroidJUnit4 |
| import org.junit.Test |
| import org.junit.runner.RunWith |
| import org.mockito.ArgumentMatchers.any |
| import org.mockito.Mockito.doReturn |
| import org.mockito.Mockito.mock |
| import kotlin.test.assertEquals |
| import kotlin.test.assertNull |
| |
| @RunWith(AndroidJUnit4::class) |
| @SmallTest |
| class NetworkRankerTest { |
| private val ranker = NetworkRanker() |
| |
| private fun makeNai(satisfy: Boolean, score: Int) = mock(NetworkAgentInfo::class.java).also { |
| doReturn(satisfy).`when`(it).satisfies(any()) |
| doReturn(score).`when`(it).currentScore |
| it.networkCapabilities = NetworkCapabilities() |
| } |
| |
| @Test |
| fun testGetBestNetwork() { |
| val scores = listOf(20, 50, 90, 60, 23, 68) |
| val nais = scores.map { makeNai(true, it) } |
| val bestNetwork = nais[2] // The one with the top score |
| val someRequest = mock(NetworkRequest::class.java) |
| assertEquals(bestNetwork, ranker.getBestNetwork(someRequest, nais)) |
| } |
| |
| @Test |
| fun testIgnoreNonSatisfying() { |
| val nais = listOf(makeNai(true, 20), makeNai(true, 50), makeNai(false, 90), |
| makeNai(false, 60), makeNai(true, 23), makeNai(false, 68)) |
| val bestNetwork = nais[1] // Top score that's satisfying |
| val someRequest = mock(NetworkRequest::class.java) |
| assertEquals(bestNetwork, ranker.getBestNetwork(someRequest, nais)) |
| } |
| |
| @Test |
| fun testNoMatch() { |
| val nais = listOf(makeNai(false, 20), makeNai(false, 50), makeNai(false, 90)) |
| val someRequest = mock(NetworkRequest::class.java) |
| assertNull(ranker.getBestNetwork(someRequest, nais)) |
| } |
| |
| @Test |
| fun testEmpty() { |
| val someRequest = mock(NetworkRequest::class.java) |
| assertNull(ranker.getBestNetwork(someRequest, emptyList())) |
| } |
| |
| // Make sure the ranker is "stable" (as in stable sort), that is, it always returns the FIRST |
| // network satisfying the request if multiple of them have the same score. |
| @Test |
| fun testStable() { |
| val nais1 = listOf(makeNai(true, 30), makeNai(true, 30), makeNai(true, 30), |
| makeNai(true, 30), makeNai(true, 30), makeNai(true, 30)) |
| val someRequest = mock(NetworkRequest::class.java) |
| assertEquals(nais1[0], ranker.getBestNetwork(someRequest, nais1)) |
| |
| val nais2 = listOf(makeNai(true, 30), makeNai(true, 50), makeNai(true, 20), |
| makeNai(true, 50), makeNai(true, 50), makeNai(true, 40)) |
| assertEquals(nais2[1], ranker.getBestNetwork(someRequest, nais2)) |
| } |
| } |