fish-shell/tests/pexpects/cancel_event.py

#!/usr/bin/env python3
import os
from pexpect_helper import SpawnedProc
import signal

sp = SpawnedProc()
send, sendline, sleep, expect_str, expect_prompt = (
    sp.send,
    sp.sendline,
    sp.sleep,
    sp.expect_str,
    sp.expect_prompt,
)
expect_prompt()

timeout = 0.15

if "CI" in os.environ:
    # This doesn't work under TSan, because TSan prevents select() being
    # interrupted by a signal.
    import sys

    print("SKIPPING cancel_event.py")
    sys.exit(0)

# Verify that cancel-commandline does what we expect - see #7384.
send("not executed")
sleep(timeout)
os.kill(sp.spawn.pid, signal.SIGINT)
sendline("echo marker")
sp.expect_str("marker")
expect_prompt()

sendline("function cancelhandler --on-event fish_cancel ; echo yay cancelled ; end")
expect_prompt()
send("still not executed")
sleep(timeout)
os.kill(sp.spawn.pid, signal.SIGINT)
expect_str("yay cancelled")
sendline("echo marker")
sp.expect_str("marker")
expect_prompt()