Files
android_packages_modules_Co…/staticlibs/devicetests/com/android/testutils/FakeDns.kt
Chalard Jean 48c6c7d838 Move utilities to libs/net
These files used to be in the network stack directory, but the libs
directory is a much more suitable place for them.

Also fix a typo : ConcurrentIntepreter → ConcurrentInterpreter

Also move {FdEvents,Packet}Reader to internal annotations. That's
what they should have been using in the first place anyway.

Note that this does not fix preupload issues reported by
checkstyle to make review easier. The fixes are in a followup
patch to this one.

Test: checkbuild
Change-Id: I675077fd42cbb092c0e6bd56571f2fc022e582fd
2020-07-30 22:10:51 +09:00

95 lines
3.5 KiB
Kotlin

/*
* 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.testutils
import android.net.DnsResolver
import android.net.InetAddresses
import android.os.Looper
import android.os.Handler
import com.android.internal.annotations.GuardedBy
import java.net.InetAddress
import java.util.concurrent.Executor
import org.mockito.invocation.InvocationOnMock
import org.mockito.Mockito.any
import org.mockito.Mockito.anyInt
import org.mockito.Mockito.doAnswer
const val TYPE_UNSPECIFIED = -1
// TODO: Integrate with NetworkMonitorTest.
class FakeDns(val mockResolver: DnsResolver) {
class DnsEntry(val hostname: String, val type: Int, val addresses: List<InetAddress>) {
fun match(host: String, type: Int) = hostname.equals(host) && type == type
}
@GuardedBy("answers")
val answers = ArrayList<DnsEntry>()
fun getAnswer(hostname: String, type: Int): DnsEntry? = synchronized(answers) {
return answers.firstOrNull { it.match(hostname, type) }
}
fun setAnswer(hostname: String, answer: Array<String>, type: Int) = synchronized(answers) {
val ans = DnsEntry(hostname, type, generateAnswer(answer))
// Replace or remove the existing one.
when (val index = answers.indexOfFirst { it.match(hostname, type) }) {
-1 -> answers.add(ans)
else -> answers[index] = ans
}
}
private fun generateAnswer(answer: Array<String>) =
answer.filterNotNull().map { InetAddresses.parseNumericAddress(it) }
fun startMocking() {
// Mock DnsResolver.query() w/o type
doAnswer {
mockAnswer(it, 1, -1, 3, 5)
}.`when`(mockResolver).query(any() /* network */, any() /* domain */, anyInt() /* flags */,
any() /* executor */, any() /* cancellationSignal */, any() /*callback*/)
// Mock DnsResolver.query() w/ type
doAnswer {
mockAnswer(it, 1, 2, 4, 6)
}.`when`(mockResolver).query(any() /* network */, any() /* domain */, anyInt() /* nsType */,
anyInt() /* flags */, any() /* executor */, any() /* cancellationSignal */,
any() /*callback*/)
}
private fun mockAnswer(
it: InvocationOnMock,
posHos: Int,
posType: Int,
posExecutor: Int,
posCallback: Int
) {
val hostname = it.arguments[posHos] as String
val executor = it.arguments[posExecutor] as Executor
val callback = it.arguments[posCallback] as DnsResolver.Callback<List<InetAddress>>
var type = if (posType != -1) it.arguments[posType] as Int else TYPE_UNSPECIFIED
val answer = getAnswer(hostname, type)
if (!answer?.addresses.isNullOrEmpty()) {
Handler(Looper.getMainLooper()).post({ executor.execute({
callback.onAnswer(answer?.addresses, 0); }) })
}
}
/** Clears all entries. */
fun clearAll() = synchronized(answers) {
answers.clear()
}
}