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82 lines
2.4 KiB
Python
82 lines
2.4 KiB
Python
#!/usr/bin/env python3
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from pexpect_helper import SpawnedProc
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import sys
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import signal
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import os
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sp = SpawnedProc()
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send, sendline, sleep, expect_prompt, expect_re = (
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sp.send,
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sp.sendline,
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sp.sleep,
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sp.expect_prompt,
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sp.expect_re,
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)
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# Helper to print an error and exit.
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def error_and_exit(text):
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keys = sp.colors()
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print("{RED}Test failed: {NORMAL}{TEXT}".format(TEXT=text, **keys))
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sys.exit(1)
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fish_pid = sp.spawn.pid
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# Launch fish_test_helper.
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expect_prompt()
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exe_path = os.environ.get("fish_test_helper")
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sp.sendline(exe_path + " nohup_wait")
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# We expect it to transfer tty ownership to fish_test_helper.
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sleep(1)
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tty_owner = os.tcgetpgrp(sp.spawn.child_fd)
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if fish_pid == tty_owner:
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os.kill(fish_pid, signal.SIGKILL)
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error_and_exit(
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"Test failed: outer fish %d did not transfer tty owner to fish_test_helper"
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% (fish_pid)
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)
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# Now we are going to tell fish to exit.
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# It must not hang. But it might hang when trying to restore the tty.
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os.kill(fish_pid, signal.SIGTERM)
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# Loop a bit until the process exits (correct) or stops (incorrrect).
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# When it exits it should be due to the SIGTERM that we sent it.
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for i in range(50):
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pid, status = os.waitpid(fish_pid, os.WUNTRACED | os.WNOHANG)
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if pid == 0:
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# No process ready yet, loop again.
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sleep(0.1)
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elif pid != fish_pid:
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# Some other process exited (??)
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os.kill(fish_pid, signal.SIGKILL)
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error_and_exit(
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"unexpected pid returned from waitpid. Got %d, expected %d"
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% (pid, fish_pid)
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)
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elif os.WIFSTOPPED(status):
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# Our pid stopped instead of exiting.
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# Probably it stopped because of its tcsetpgrp call during exit.
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# Kill it and report a failure.
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os.kill(fish_pid, signal.SIGKILL)
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error_and_exit("pid %d stopped instead of exiting on SIGTERM" % pid)
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elif not os.WIFSIGNALED(status):
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error_and_exit("pid %d did not signal-exit" % pid)
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elif os.WTERMSIG(status) != signal.SIGTERM:
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error_and_exit(
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"pid %d signal-exited with %d instead of %d (SIGTERM)"
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% (os.WTERMSIG(status), signal.SIGTERM)
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)
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else:
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# Success!
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sys.exit(0)
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else:
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# Our loop completed without the process being returned.
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error_and_exit("fish with pid %d hung after SIGTERM" % fish_pid)
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# Should never get here.
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error_and_exit("unknown, should be unreachable")
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