nim-chronos/tests/testproc.nim

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# Chronos Test Suite
# (c) Copyright 2022-Present
# Status Research & Development GmbH
#
# Licensed under either of
# Apache License, version 2.0, (LICENSE-APACHEv2)
# MIT license (LICENSE-MIT)
import std/os
import unittest2, stew/[base10, byteutils]
import ".."/chronos/unittest2/asynctests
when defined(posix):
from ".."/chronos/osdefs import SIGKILL
when defined(nimHasUsed): {.used.}
suite "Asynchronous process management test suite":
const OutputTests =
when defined(windows):
[
("ECHO TESTOUT", "TESTOUT\r\n", ""),
("ECHO TESTERR 1>&2", "", "TESTERR \r\n"),
("ECHO TESTBOTH && ECHO TESTBOTH 1>&2", "TESTBOTH \r\n",
"TESTBOTH \r\n")
]
else:
[
("echo TESTOUT", "TESTOUT\n", ""),
("echo TESTERR 1>&2", "", "TESTERR\n"),
("echo TESTBOTH && echo TESTBOTH 1>&2", "TESTBOTH\n", "TESTBOTH\n")
]
const ExitCodes = [5, 13, 64, 100, 126, 127, 128, 130, 255]
proc createBigMessage(size: int): seq[byte] =
var message = "MESSAGE"
result = newSeq[byte](size)
for i in 0 ..< len(result):
result[i] = byte(message[i mod len(message)])
when not(defined(windows)):
proc getCurrentFD(): int =
let local = initTAddress("127.0.0.1:34334")
let sock = createAsyncSocket(local.getDomain(), SockType.SOCK_DGRAM,
Protocol.IPPROTO_UDP)
closeSocket(sock)
return int(sock)
var markFD = getCurrentFD()
asyncTest "execCommand() exit codes test":
for item in ExitCodes:
let command = "exit " & Base10.toString(uint64(item))
let res = await execCommand(command)
check res == item
asyncTest "execCommandEx() exit codes and outputs test":
for test in OutputTests:
let response = await execCommandEx(test[0])
check:
response.stdOutput == test[1]
response.stdError == test[2]
response.status == 0
asyncTest "waitForExit() & peekExitCode() exit codes test":
let options = {AsyncProcessOption.EvalCommand}
for item in ExitCodes:
let command = "exit " & Base10.toString(uint64(item))
let process = await startProcess(command, options = options)
try:
let res = await process.waitForExit(InfiniteDuration)
check:
res == item
process.peekExitCode().tryGet() == item
process.running().tryGet() == false
finally:
await process.closeWait()
asyncTest "addProcess() test":
var
handlerFut = newFuture[void]("process.handler.future")
pidFd: ProcessHandle
processCounter = 0
processExitCode = 0
process: AsyncProcessRef
proc processHandler(udata: pointer) {.gcsafe.} =
processCounter = cast[int](udata)
processExitCode = process.peekExitCode().valueOr:
handlerFut.fail(newException(ValueError, osErrorMsg(error)))
return
let res = removeProcess2(pidFd)
if res.isErr():
handlerFut.fail(newException(ValueError, osErrorMsg(res.error())))
else:
handlerFut.complete()
let
options = {AsyncProcessOption.EvalCommand}
command = "exit 1"
process = await startProcess(command, options = options)
try:
pidFd =
block:
let res = addProcess2(process.pid(), processHandler,
cast[pointer](31337))
if res.isErr():
raiseAssert osErrorMsg(res.error())
res.get()
await handlerFut.wait(5.seconds)
check:
processExitCode == 1
processCounter == 31337
finally:
await process.closeWait()
asyncTest "STDIN stream test":
let
command =
when defined(windows):
"tests\\testproc.bat stdin"
else:
"tests/testproc.sh stdin"
options = {AsyncProcessOption.EvalCommand}
shellHeader = "STDIN DATA: ".toBytes()
smallTest =
when defined(windows):
"SMALL AMOUNT\r\n".toBytes()
else:
"SMALL AMOUNT\n".toBytes()
let bigTest =
when defined(windows):
var res = createBigMessage(256)
res.add(byte(0x0D))
res.add(byte(0x0A))
res
else:
var res = createBigMessage(256)
res.add(byte(0x0A))
res
for item in [smallTest, bigTest]:
let process = await startProcess(command, options = options,
stdinHandle = AsyncProcess.Pipe,
stdoutHandle = AsyncProcess.Pipe)
try:
await process.stdinStream.write(item)
let stdoutDataFut = process.stdoutStream.read()
let res = await process.waitForExit(InfiniteDuration)
await allFutures(stdoutDataFut)
check:
res == 0
stdoutDataFut.read() == shellHeader & item
finally:
await process.closeWait()
asyncTest "STDOUT and STDERR streams test":
let options = {AsyncProcessOption.EvalCommand}
for test in OutputTests:
let process = await startProcess(test[0], options = options,
stdoutHandle = AsyncProcess.Pipe,
stderrHandle = AsyncProcess.Pipe)
try:
let outBytesFut = process.stdoutStream.read()
let errBytesFut = process.stderrStream.read()
let res = await process.waitForExit(InfiniteDuration)
await allFutures(outBytesFut, errBytesFut)
check:
string.fromBytes(outBytesFut.read()) == test[1]
string.fromBytes(errBytesFut.read()) == test[2]
res == 0
finally:
await process.closeWait()
asyncTest "STDERR to STDOUT streams test":
let options = {AsyncProcessOption.EvalCommand,
AsyncProcessOption.StdErrToStdOut}
let command =
when defined(windows):
"ECHO TESTSTDOUT && ECHO TESTSTDERR 1>&2"
else:
"echo TESTSTDOUT && echo TESTSTDERR 1>&2"
let expect =
when defined(windows):
"TESTSTDOUT \r\nTESTSTDERR \r\n"
else:
"TESTSTDOUT\nTESTSTDERR\n"
let process = await startProcess(command, options = options,
stdoutHandle = AsyncProcess.Pipe)
try:
let outBytesFut = process.stdoutStream.read()
let res = await process.waitForExit(InfiniteDuration)
await allFutures(outBytesFut)
check:
string.fromBytes(outBytesFut.read()) == expect
res == 0
finally:
await process.closeWait()
asyncTest "Capture big amount of bytes from STDOUT stream test":
let options = {AsyncProcessOption.EvalCommand}
let command =
when defined(windows):
"tests\\testproc.bat bigdata"
else:
"tests/testproc.sh bigdata"
let expect =
when defined(windows):
400_000 * (64 + 2)
else:
400_000 * (64 + 1)
let process = await startProcess(command, options = options,
stdoutHandle = AsyncProcess.Pipe,
stderrHandle = AsyncProcess.Pipe)
try:
let outBytesFut = process.stdoutStream.read()
let errBytesFut = process.stderrStream.read()
let res = await process.waitForExit(InfiniteDuration)
await allFutures(outBytesFut, errBytesFut)
check:
res == 0
len(outBytesFut.read()) == expect
len(errBytesFut.read()) == 0
finally:
await process.closeWait()
asyncTest "Long-waiting waitForExit() test":
let command =
when defined(windows):
("tests\\testproc.bat", "timeout2")
else:
("tests/testproc.sh", "timeout2")
let process = await startProcess(command[0], arguments = @[command[1]])
try:
let res = await process.waitForExit(InfiniteDuration)
check res == 2
finally:
await process.closeWait()
asyncTest "waitForExit(duration) test":
let command =
when defined(windows):
("tests\\testproc.bat", "timeout10")
else:
("tests/testproc.sh", "timeout10")
let expect =
when defined(windows):
0
else:
128 + int(SIGKILL)
let process = await startProcess(command[0], arguments = @[command[1]])
try:
let res = await process.waitForExit(1.seconds)
check res == expect
finally:
await process.closeWait()
asyncTest "Child process environment test":
let command =
when defined(windows):
("tests\\testproc.bat", "envtest", 0, "CHILDPROCESSTEST\r\n")
else:
("tests/testproc.sh", "envtest", 0, "CHILDPROCESSTEST\n")
let env = getProcessEnvironment()
env["CHRONOSASYNC"] = "CHILDPROCESSTEST"
let process = await startProcess(command[0], arguments = @[command[1]],
environment = env,
stdoutHandle = AsyncProcess.Pipe)
try:
let outBytesFut = process.stdoutStream.read()
let res = await process.waitForExit(InfiniteDuration)
let outBytes = await outBytesFut
check:
res == command[2]
string.fromBytes(outBytes) == command[3]
finally:
await process.closeWait()
test "getProcessEnvironment() test":
let env = getProcessEnvironment()
when defined(windows):
check len(env["SYSTEMROOT"]) > 0
else:
check len(env["USER"]) > 0
asyncTest "Multiple processes waiting test":
const ProcessesCount = 50
let command =
when defined(windows):
("tests\\testproc.bat", "timeout2", 2)
else:
("tests/testproc.sh", "timeout2", 2)
var processes: seq[AsyncProcessRef]
for n in 0 ..< ProcessesCount:
let process = await startProcess(command[0], arguments = @[command[1]])
processes.add(process)
try:
var pending: seq[Future[int]]
for process in processes:
pending.add(process.waitForExit(10.seconds))
await allFutures(pending)
for index in 0 ..< ProcessesCount:
check pending[index].read() == command[2]
finally:
var pending: seq[Future[void]]
for process in processes:
pending.add(process.closeWait())
await allFutures(pending)
asyncTest "Multiple processes exit codes test":
const ProcessesCount = 50
let options = {AsyncProcessOption.EvalCommand}
var processes: seq[AsyncProcessRef]
for n in 0 ..< ProcessesCount:
let
command = "exit " & Base10.toString(uint64(n))
process = await startProcess(command, options = options)
processes.add(process)
try:
var pending: seq[Future[int]]
for process in processes:
pending.add(process.waitForExit(10.seconds))
await allFutures(pending)
for index in 0 ..< ProcessesCount:
check pending[index].read() == index
finally:
var pending: seq[Future[void]]
for process in processes:
pending.add(process.closeWait())
await allFutures(pending)
asyncTest "Multiple processes data capture test":
const ProcessesCount = 50
let options = {AsyncProcessOption.EvalCommand}
var processes: seq[AsyncProcessRef]
for n in 0 ..< ProcessesCount:
let command =
when defined(windows):
"ECHO TEST" & $n
else:
"echo TEST" & $n
let process = await startProcess(command, options = options,
stdoutHandle = AsyncProcess.Pipe)
processes.add(process)
try:
var pendingReaders: seq[Future[seq[byte]]]
var pendingWaiters: seq[Future[int]]
for process in processes:
pendingReaders.add(process.stdoutStream.read())
pendingWaiters.add(process.waitForExit(10.seconds))
await allFutures(pendingReaders)
await allFutures(pendingWaiters)
for index in 0 ..< ProcessesCount:
let expect =
when defined(windows):
"TEST" & $index & "\r\n"
else:
"TEST" & $index & "\n"
check string.fromBytes(pendingReaders[index].read()) == expect
check pendingWaiters[index].read() == 0
finally:
var pending: seq[Future[void]]
for process in processes:
pending.add(process.closeWait())
await allFutures(pending)
asyncTest "terminate() test":
let command =
when defined(windows):
("tests\\testproc.bat", "timeout10", 0)
else:
("tests/testproc.sh", "timeout10", 143) # 128 + SIGTERM
let process = await startProcess(command[0], arguments = @[command[1]])
try:
let resFut = process.waitForExit(InfiniteDuration)
check process.terminate().isOk()
let res = await resFut
check res == command[2]
finally:
await process.closeWait()
asyncTest "kill() test":
let command =
when defined(windows):
("tests\\testproc.bat", "timeout10", 0)
else:
("tests/testproc.sh", "timeout10", 137) # 128 + SIGKILL
let process = await startProcess(command[0], arguments = @[command[1]])
try:
let resFut = process.waitForExit(InfiniteDuration)
check process.kill().isOk()
let res = await resFut
check res == command[2]
finally:
await process.closeWait()
test "File descriptors leaks test":
when defined(windows):
skip()
else:
check getCurrentFD() == markFD
test "Leaks test":
proc getTrackerLeaks(tracker: string): bool =
let tracker = getTracker(tracker)
if isNil(tracker): false else: tracker.isLeaked()
check:
getTrackerLeaks("async.process") == false
getTrackerLeaks("async.stream.reader") == false
getTrackerLeaks("async.stream.writer") == false
getTrackerLeaks("stream.transport") == false