I noticed that when I run "make check" inside an Emacs compile-mode buffer,
the "daemon --detach closes standard fds" and "daemon --detach --monitor closes
standard fds" tests failed. Investigation showed that Emacs ignores
SIGPIPE in the compile subprocess, which caused the "yes" process in these
tests to emit the message "yes: Broken pipe" and exit with status 1 instead
of dying from SIGPIPE.
This commit changes these tests to allow either behavior.
AT_SETUP([daemon --detach closes standard fds])
AT_CAPTURE_FILE([pid])
AT_SETUP([daemon --detach closes standard fds])
AT_CAPTURE_FILE([pid])
+AT_CAPTURE_FILE([status])
+AT_CAPTURE_FILE([stderr])
-AT_CHECK([(yes; echo $? > status) | ovsdb-server --detach --pidfile=$PWD/pid --unixctl=$PWD/unixctl db], [0], [], [stderr])
+AT_CHECK([(yes 2>stderr; echo $? > status) | ovsdb-server --detach --pidfile=$PWD/pid --unixctl=$PWD/unixctl db], [0], [], [])
AT_CHECK([kill `cat pid`])
AT_CHECK([test -s status])
AT_CHECK([kill `cat pid`])
AT_CHECK([test -s status])
-AT_CHECK([kill -l `cat status`], [0], [PIPE
+if grep '[[bB]]roken pipe' stderr >/dev/null 2>&1; then
+ # Something in the environment caused SIGPIPE to be ignored, but
+ # 'yes' at least told us that it got EPIPE. Good enough; we know
+ # that stdout was closed.
+ :
+else
+ # Otherwise make sure that 'yes' died from SIGPIPE.
+ AT_CHECK([kill -l `cat status`], [0], [PIPE
AT_CLEANUP
AT_SETUP([daemon --detach --monitor closes standard fds])
AT_CAPTURE_FILE([pid])
AT_CLEANUP
AT_SETUP([daemon --detach --monitor closes standard fds])
AT_CAPTURE_FILE([pid])
+AT_CAPTURE_FILE([status])
+AT_CAPTURE_FILE([stderr])
-AT_CHECK([(yes; echo $? > status) | ovsdb-server --detach --monitor --pidfile=$PWD/pid --unixctl=$PWD/unixctl db], [0], [], [stderr])
+AT_CHECK([(yes 2>stderr; echo $? > status) | ovsdb-server --detach --monitor --pidfile=$PWD/pid --unixctl=$PWD/unixctl db], [0], [], [])
AT_CHECK([kill `cat pid`])
AT_CHECK([test -s status])
AT_CHECK([kill `cat pid`])
AT_CHECK([test -s status])
-AT_CHECK([kill -l `cat status`], [0], [PIPE
+if grep '[[bB]]roken pipe' stderr >/dev/null 2>&1; then
+ # Something in the environment caused SIGPIPE to be ignored, but
+ # 'yes' at least told us that it got EPIPE. Good enough; we know
+ # that stdout was closed.
+ :
+else
+ # Otherwise make sure that 'yes' died from SIGPIPE.
+ AT_CHECK([kill -l `cat status`], [0], [PIPE