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4c9d01cab0
Apparently on macOS SIGTSTP (from control-Z) causes `read()` to return EINTR. This means `cat | cat` will exit as soon as it's backgrounded and brought back. So instead we use `sleep`, which won't read(), and therefore is impervious to these puny attacks. See discussion in #7447.
42 lines
778 B
Python
42 lines
778 B
Python
#!/usr/bin/env python3
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from pexpect_helper import SpawnedProc
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import subprocess
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import sys
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import time
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sp = SpawnedProc()
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send, sendline, sleep, expect_prompt, expect_re, expect_str = (
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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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sp.expect_str,
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)
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expect_prompt()
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sendline("sleep 500")
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sendline("set -l foo bar; echo $foo")
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expect_str("")
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sleep(0.2)
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# ctrl-z - send job to background
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send("\x1A")
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sleep(0.2)
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expect_prompt()
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sendline("set -l foo bar; echo $foo")
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expect_str("bar")
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expect_prompt()
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sendline("fg")
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expect_str("Send job 1, 'sleep 500' to foreground")
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sleep(0.2)
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sendline("set -l foo bar; echo $foo")
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expect_str("")
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# ctrl-c - cancel
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send("\x03")
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expect_prompt()
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sendline("set -l foo bar; echo $foo")
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expect_str("bar")
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