sapling/eden/scm/tests/test-atexit-epipe.t
Durham Goode 4f8c30b04e py3: enable 92 py3 tests
Summary: These now pass

Reviewed By: singhsrb

Differential Revision: D19785175

fbshipit-source-id: bf92757e3fe0753e1b61ffddfd30a37fb40a642f
2020-02-17 14:52:37 -08:00

54 lines
1.6 KiB
Perl

#chg-compatible
$ cat > a.py << EOF
> import os
> def uisetup(ui):
> # make the test slightly more interesting
> ui.fout = os.fdopen(ui.fout.fileno(), "wb", 1)
> @ui.atexit
> def printlines():
> ui.write("line1\n")
> ui.write("line2\n" * 10000) # probably triggers EPIPE or SIGPIPE
> open("executed-here1", "w").close()
> EOF
This should not trigger StdioError (IOError), or BrokenPipeError (OSError):
$ hg --config extensions.a=a.py init foo1 | head -1
line1
'executed-here1' should exist to indicate the execution flow:
$ [ -f executed-here1 ]
Try again, using a pager:
$ cat > b.py << EOF
> import os
> def uisetup(ui):
> ui.fout = os.fdopen(ui.fout.fileno(), "wb", 1)
> @ui.atexit
> def printlines():
> # This is hacky. But it makes sure pager is running.
> # Using --pager=always is not enough, because killpager is also
> # an atexit handler and gets executed before this one.
> ui.pager("internal-always-atexit")
> # Redo signal.signal(signal.SIGPIPE, signal.SIG_IGN) called by
> # _runexithandlers.
> import signal
> signal.signal(signal.SIGPIPE, signal.SIG_IGN)
> ui.write("line1\n")
> ui.write("line2\n" * 10000) # probably triggers EPIPE or SIGPIPE
> open("executed-here2", "w").close()
> EOF
This should not raise SignalInterrupt (KeyboardInterrupt):
$ hg --config extensions.b=b.py --config 'pager.pager=head -1' init foo2
line1
'executed-here2' should exist to indicate the execution flow:
$ [ -f executed-here2 ]