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/*
* Copyright (C) 2022 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
import android.net.DataUsageRequest
import android.net.netstats.IUsageCallback
import android.os.IBinder
import java.util.concurrent.LinkedBlockingQueue
import java.util.concurrent.TimeUnit
import kotlin.test.fail
private const val DEFAULT_TIMEOUT_MS = 200L
// TODO: Move the class to static libs once all downstream have IUsageCallback definition.
class TestableUsageCallback(private val binder: IBinder) : IUsageCallback.Stub() {
sealed class CallbackType(val request: DataUsageRequest) {
class OnThresholdReached(request: DataUsageRequest) : CallbackType(request)
class OnCallbackReleased(request: DataUsageRequest) : CallbackType(request)
}
// TODO: Change to use ArrayTrackRecord once moved into to the module.
private val history = LinkedBlockingQueue<CallbackType>()
override fun onThresholdReached(request: DataUsageRequest) {
history.add(CallbackType.OnThresholdReached(request))
}
override fun onCallbackReleased(request: DataUsageRequest) {
history.add(CallbackType.OnCallbackReleased(request))
}
fun expectOnThresholdReached(request: DataUsageRequest) {
expectCallback<CallbackType.OnThresholdReached>(request, DEFAULT_TIMEOUT_MS)
}
fun expectOnCallbackReleased(request: DataUsageRequest) {
expectCallback<CallbackType.OnCallbackReleased>(request, DEFAULT_TIMEOUT_MS)
}
@JvmOverloads
fun assertNoCallback(timeout: Long = DEFAULT_TIMEOUT_MS) {
val cb = history.poll(timeout, TimeUnit.MILLISECONDS)
cb?.let { fail("Expected no callback but got $cb") }
}
// Expects a callback of the specified request on the specified network within the timeout.
// If no callback arrives, or a different callback arrives, fail.
private inline fun <reified T : CallbackType> expectCallback(
expectedRequest: DataUsageRequest,
timeoutMs: Long
) {
history.poll(timeoutMs, TimeUnit.MILLISECONDS).let {
if (it !is T || it.request != expectedRequest) {
fail("Unexpected callback : $it," +
" expected ${T::class} with Request[$expectedRequest]")
} else {
it
}
}
}
override fun asBinder(): IBinder {
return binder
}
}
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