tests/test-inotify-issue1208.t

check-code: catch Python 'is' comparing number or string literals

The Python 'is' operator compares object identity, so it should
definitely not be applied to string or number literals, which Python
implementations are free to represent with a temporary object.

This should catch the following kinds of bogus expressions (examples):

  x is 'foo'     x is not 'foo'
  x is "bar"     x is not "bar"
  x is 42        x is not 42
  x is -36       x is not -36

As originally proposed by Martin Geisler, amended with catching
negative numbers.

  $ "$TESTDIR/hghave" inotify || exit 80
  $ echo "[extensions]" >> $HGRCPATH
  $ echo "inotify=" >> $HGRCPATH
  $ p="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
  $ hg init $p
  $ cd $p

fail

  $ ln -sf doesnotexist .hg/inotify.sock
  $ hg st
  abort: inotify-server: cannot start: .hg/inotify.sock is a broken symlink
  inotify-client: could not start inotify server: child process failed to start
  $ hg inserve
  abort: inotify-server: cannot start: .hg/inotify.sock is a broken symlink
  [255]
  $ rm .hg/inotify.sock

inserve

  $ hg inserve -d --pid-file=hg.pid
  $ cat hg.pid >> "$DAEMON_PIDS"

status

  $ hg status
  ? hg.pid

if we try to start twice the server, make sure we get a correct error

  $ hg inserve -d --pid-file=hg2.pid
  abort: inotify-server: cannot start: socket is already bound
  abort: child process failed to start
  [255]
  $ kill `cat hg.pid`