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/*
* Copyright (C) 2023 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.processmonitor.agenttracker
import com.android.adblib.RemoteFileMode
import com.android.adblib.testing.FakeAdbLoggerFactory
import com.android.adblib.testingutils.FakeAdbServerProviderRule
import com.android.fakeadbserver.DeviceFileState
import com.android.fakeadbserver.DeviceState
import com.android.fakeadbserver.DeviceState.HostConnectionType.USB
import com.android.fakeadbserver.devicecommandhandlers.SyncCommandHandler
import com.android.processmonitor.agenttracker.AgentProcessTracker.Companion.AGENT_PATH
import com.android.processmonitor.common.ProcessEvent.ProcessAdded
import com.android.processmonitor.common.ProcessEvent.ProcessRemoved
import com.android.testutils.TestResources
import com.google.common.truth.Truth.assertThat
import kotlinx.coroutines.ExperimentalCoroutinesApi
import kotlinx.coroutines.flow.toList
import kotlinx.coroutines.test.runTest
import org.junit.Rule
import org.junit.Test
import java.nio.file.Path
/**
* Tests for [AgentProcessTracker]
*/
@Suppress("OPT_IN_IS_NOT_ENABLED")
@OptIn(ExperimentalCoroutinesApi::class) // runTest is experimental (replaced runTestTest)
internal class AgentProcessTrackerTest {
private val makeAgentDirHandler = MakeAgentDirCommandHandler()
private val agentHandler = ProcessTrackerAgentCommandHandler()
@get:Rule
val fakeAdbRule = FakeAdbServerProviderRule {
installDefaultCommandHandlers()
installDeviceHandler(agentHandler)
installDeviceHandler(makeAgentDirHandler)
installDeviceHandler(SyncCommandHandler())
}
private val logger = FakeAdbLoggerFactory().logger
private val agentSourcePath = TestResources.getDirectory("/agent").toPath()
@Test
fun trackProcesses_createsStudioDirectory(): Unit = runTest {
setupDevice("device1")
agentHandler.emitEof()
val tracker = agentProcessTracker("device1")
tracker.trackProcesses().toList()
assertThat(makeAgentDirHandler.invocations).containsExactly("device1")
}
@Test
fun trackProcesses_tracks(): Unit = runTest {
setupDevice("device1")
agentHandler
.emitStdout("+ 1 foo")
.emitStdout("+ 2 bar")
.emitStdout("- 1")
.emitStdout("- 2")
.emitEof()
val tracker = agentProcessTracker("device1", intervalMillis = 1000)
val events = tracker.trackProcesses().toList()
assertThat(agentHandler.invocations).containsExactly("device1: --interval 1000")
assertThat(events).containsExactly(
ProcessAdded(1, null, "foo"),
ProcessAdded(2, null, "bar"),
ProcessRemoved(1),
ProcessRemoved(2),
).inOrder()
}
@Test
fun trackProcesses_ignoresBadLines(): Unit = runTest {
setupDevice("device2")
agentHandler
.emitStdout("+ 5 foo")
.emitStdout("bar")
.emitStdout("- bar")
.emitStdout("+ 2")
.emitEof()
val tracker = agentProcessTracker("device2", intervalMillis = 2000)
val events = tracker.trackProcesses().toList()
assertThat(agentHandler.invocations).containsExactly("device2: --interval 2000")
assertThat(events).containsExactly(
ProcessAdded(5, null, "foo"),
).inOrder()
}
@Test
fun trackProcesses_pushesAgent(): Unit = runTest {
val device = setupDevice("device1")
agentHandler.emitEof()
val tracker = agentProcessTracker("device1", "abi", agentSourcePath)
tracker.trackProcesses().toList()
val agentFile: DeviceFileState = device.getFile(AGENT_PATH)!!
assertThat(agentFile.posixPermission()).isEqualTo("r-x------")
assertThat(String(agentFile.bytes)).isEqualTo("Hello from process-tracker\n")
}
private fun setupDevice(serialNumber: String): DeviceState =
fakeAdbRule.fakeAdb.connectDevice(serialNumber, "", "", "13", "33", USB)
private fun agentProcessTracker(
serialNumber: String,
deviceAbi: String = "abi",
agentSourcePath: Path = this.agentSourcePath,
intervalMillis: Int = 1000,
): AgentProcessTracker =
AgentProcessTracker(
fakeAdbRule.adbSession,
serialNumber,
deviceAbi,
agentSourcePath,
intervalMillis,
logger
)
}
private fun DeviceFileState.posixPermission() = RemoteFileMode.fromModeBits(permission).posixString
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