fish-shell/tests/pexpects/commandline.py

#!/usr/bin/env python3
from pexpect_helper import SpawnedProc, control

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

sendline("bind '~' 'handle_tilde'")
expect_prompt()

# printing the current buffer should not remove quoting
sendline(
    "function handle_tilde; echo; echo '@GUARD:1@'; commandline -b; echo '@/GUARD:1@'; commandline -b ''; end"
)
expect_prompt()
sendline("echo \en one \"two three\" four'five six'{7} 'eight~")
expect_prompt("\r\n@GUARD:1@\r\n(.*)\r\n@/GUARD:1@\r\n")

# printing the buffer with -o should remove quoting
sendline(
    "function handle_tilde; echo; echo '@GUARD:2@'; commandline -bo; echo '@/GUARD:2@'; commandline -b ''; end"
)
expect_prompt()
sendline("echo one \"two three\" four'five six'{7} 'eight~")
expect_prompt("\r\n@GUARD:2@\r\n(.*)\r\n@/GUARD:2@\r\n")

# Check that we don't infinitely loop here.
sendline("function fish_mode_prompt; commandline -f repaint; end")
expect_prompt()

sendline("echo foo")
expect_prompt("foo")

# commandline is empty when a command is executed.
sendline("set what (commandline)")
expect_prompt()
sendline('echo "<$what>"')
expect_prompt("<>")

# Test for undocumented -I flag.
# TODO: consider removing.
sendline("commandline -I foo")
expect_prompt("foo")

# See that the commandline is updated immediately inside completions.
sendline("complete -c foo -xa '(commandline)'")
expect_prompt()
send("foo bar \t")
expect_str("foo bar foo\ bar\ ")
send("\b" * 64)

# Commandline works when run on its own (#8807).
sendline("commandline whatever")
expect_re("prompt [0-9]+>whatever")

# Test --current-process output
send(control("u"))
sendline(r"bind \cb 'set tmp (commandline --current-process)'")
expect_prompt()
send("echo process1; echo process2")
send(control("a"))
send(control("b"))
send(control("k"))
sendline("echo first process is <$tmp>")
expect_str("first process is <echo process1>")

send("echo process # comment")
send(control("a"))
send(control("b"))
send(control("k"))
sendline('echo "process extent is <$tmp>"')
expect_str("process extent is <echo process # comment>")

sendline(r"bind \cb 'set tmp (commandline --current-process | count)'")
sendline(r'commandline "echo line1 \\" "# comment" "line2"')
send(control("b"))
send(control("u") * 6)
sendline('echo "process spans $tmp lines"')
expect_str("process spans 3 lines")