#!/usr/bin/env python3 from pexpect_helper import SpawnedProc import platform # Set a 0 terminal size sp = SpawnedProc(args=["-d", "term-support"], dimensions=(0, 0)) 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() # Now confirm it defaulted to 80x24 sendline("echo $COLUMNS $LINES") expect_str("80 24") expect_str("term-support: Terminal has 0 columns, falling back to default width") expect_str("term-support: Terminal has 0 rows, falling back to default height") expect_prompt() # See if $LINES/$COLUMNS change in response to sigwinch, also in a --on-signal function sendline("function on-winch --on-signal winch; echo $LINES $COLUMNS; end") expect_prompt() sp.spawn.setwinsize(40, 50) expect_str("40 50") sendline("echo $LINES $COLUMNS") expect_prompt("40 50") sp.spawn.setwinsize(20, 70) expect_str("20 70") sendline("echo $LINES $COLUMNS") expect_prompt("20 70") sendline("stty -a") expect_prompt() # Confirm flow control in the shell is disabled - we should ignore the ctrl-s in there. sendline("echo hello\x13hello") expect_prompt("hellohello") # Confirm it is off for external commands sendline("stty -a | string match -q '*-ixon -ixoff*'; echo $status") expect_prompt("0") # Turn flow control on sendline("stty ixon ixoff") expect_prompt() sendline("stty -a | string match -q '*ixon ixoff*'; echo $status") expect_prompt("0") # HACK: This fails on FreeBSD, macOS and NetBSD for some reason, maybe # a pexpect issue? # So disable it everywhere but linux for now. if platform.system() in ["Linux"]: # Confirm flow control in the shell is disabled - we should ignore the ctrl-s in there. sendline("echo hello\x13hello") # This should not match because we should not get any output. # Unfortunately we have to wait for the timeout to expire - set it to a second. expect_str("hellohello", timeout=1, shouldfail=True) send("\x11") # ctrl-q to resume flow expect_prompt("hellohello")