Merge "[SP04] Add TestableNetworkStatsProvider"

1 files changed, 63 insertions, 0 deletions

diff --git a/tests/lib/src/com/android/testutils/TestableNetworkStatsProvider.kt b/tests/lib/src/com/android/testutils/TestableNetworkStatsProvider.kt
new file mode 100644
index 0000000..760591b
--- /dev/null
+++ b/tests/lib/src/com/android/testutils/TestableNetworkStatsProvider.kt
@@ -0,0 +1,63 @@
+/*
+ * 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.testutils
+
+import android.net.netstats.provider.INetworkStatsProvider
+import kotlin.test.assertEquals
+import kotlin.test.fail
+
+private const val DEFAULT_TIMEOUT_MS = 200L
+
+open class TestableNetworkStatsProvider : INetworkStatsProvider.Stub() {
+    sealed class CallbackType {
+        data class RequestUpdate(val token: Int) : CallbackType()
+        data class SetLimit(val iface: String?, val quotaBytes: Long) : CallbackType()
+        data class SetAlert(val quotaBytes: Long) : CallbackType()
+    }
+
+    private val history = ArrayTrackRecord<CallbackType>().ReadHead()
+
+    override fun requestStatsUpdate(token: Int) {
+        history.add(CallbackType.RequestUpdate(token))
+    }
+
+    override fun setLimit(iface: String?, quotaBytes: Long) {
+        history.add(CallbackType.SetLimit(iface, quotaBytes))
+    }
+
+    override fun setAlert(quotaBytes: Long) {
+        history.add(CallbackType.SetAlert(quotaBytes))
+    }
+
+    fun expectStatsUpdate(token: Int) {
+        assertEquals(CallbackType.RequestUpdate(token), history.poll(DEFAULT_TIMEOUT_MS))
+    }
+
+    fun expectSetLimit(iface: String?, quotaBytes: Long) {
+        assertEquals(CallbackType.SetLimit(iface, quotaBytes), history.poll(DEFAULT_TIMEOUT_MS))
+    }
+
+    fun expectSetAlert(quotaBytes: Long) {
+        assertEquals(CallbackType.SetAlert(quotaBytes), history.poll(DEFAULT_TIMEOUT_MS))
+    }
+
+    @JvmOverloads
+    fun assertNoCallback(timeout: Long = DEFAULT_TIMEOUT_MS) {
+        val cb = history.poll(timeout)
+        cb?.let { fail("Expected no callback but got $cb") }
+    }
+}