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author | Junyu Lai <junyulai@google.com> | 2021-06-21 16:27:24 +0000 |
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committer | Android (Google) Code Review <android-gerrit@google.com> | 2021-06-21 16:27:24 +0000 |
commit | 994231a768545a76dc3afbfdf8dcbc28657796dc (patch) | |
tree | e68cc5236293b75c53bf3cd499edd25bb3e88c75 | |
parent | f8adaf99c6bb0762e5640f5c91e112cd8285f8fb (diff) | |
parent | ddb932871640408d22626769e9e198ef11631984 (diff) | |
download | net-994231a768545a76dc3afbfdf8dcbc28657796dc.tar.gz |
Merge "Add TestableNetworkOfferCallback" into sc-dev
-rw-r--r-- | common/testutils/devicetests/com/android/testutils/TestableNetworkOfferCallback.kt | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/common/testutils/devicetests/com/android/testutils/TestableNetworkOfferCallback.kt b/common/testutils/devicetests/com/android/testutils/TestableNetworkOfferCallback.kt new file mode 100644 index 00000000..21bd60c9 --- /dev/null +++ b/common/testutils/devicetests/com/android/testutils/TestableNetworkOfferCallback.kt @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2021 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.NetworkCapabilities +import android.net.NetworkProvider +import android.net.NetworkRequest +import android.util.Log +import com.android.net.module.util.ArrayTrackRecord +import kotlin.test.fail + +class TestableNetworkOfferCallback(val timeoutMs: Long, private val noCallbackTimeoutMs: Long) + : NetworkProvider.NetworkOfferCallback { + private val TAG = this::class.simpleName + val history = ArrayTrackRecord<CallbackEntry>().newReadHead() + + sealed class CallbackEntry { + data class OnNetworkNeeded(val request: NetworkRequest) : CallbackEntry() + data class OnNetworkUnneeded(val request: NetworkRequest) : CallbackEntry() + } + + /** + * Called by the system when a network for this offer is needed to satisfy some + * networking request. + */ + override fun onNetworkNeeded(request: NetworkRequest) { + Log.d(TAG, "onNetworkNeeded $request") + history.add(CallbackEntry.OnNetworkNeeded(request)) + } + + /** + * Called by the system when this offer is no longer valuable for this request. + */ + override fun onNetworkUnneeded(request: NetworkRequest) { + Log.d(TAG, "onNetworkUnneeded $request") + history.add(CallbackEntry.OnNetworkUnneeded(request)) + } + + inline fun <reified T : CallbackEntry> expectCallbackThat( + crossinline predicate: (T) -> Boolean + ) { + val event = history.poll(timeoutMs) + ?: fail("Did not receive callback after ${timeoutMs}ms") + if (event !is T || !predicate(event)) fail("Received unexpected callback $event") + } + + fun expectOnNetworkNeeded(capabilities: NetworkCapabilities) = + expectCallbackThat<CallbackEntry.OnNetworkNeeded> { + it.request.canBeSatisfiedBy(capabilities) + } + + fun expectOnNetworkUnneeded(capabilities: NetworkCapabilities) = + expectCallbackThat<CallbackEntry.OnNetworkUnneeded> { + it.request.canBeSatisfiedBy(capabilities) + } + + fun assertNoCallback() { + val cb = history.poll(noCallbackTimeoutMs) + if (null != cb) fail("Expected no callback but got $cb") + } +}
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