Hirohito Higashi wrote:
> > > > > > > > My config:
> > > > > > > > $ ./configure --with-features=huge --enable-gui=gnome2
> > > > > > > > --enable-fail-if-missing
> > > > > > > > My env.:
> > > > > > > > I am connecting to fedora 25 with ssh via PuTTY on Windows 7.
> > > > > > > > Vim version:
> > > > > > > > 8.0.502
> > > > > > > >
> > > > > > > > Executed command:
> > > > > > > > $ cd vim/src
> > > > > > > > $ make test
> > > > > > > >
> > > > > > > > Execution result:
> > > > > > > > I got the following error.
> > > > > > > > -------->8--------
> > > > > > > > Test results:
> > > > > > > >
> > > > > > > >
> > > > > > > > >From test_clientserver.vim:
> > > > > > > > Found errors in Test_client_server():
> > > > > > > > First run:
> > > > > > > > function RunTheTest[24]..Test_client_server line 17: Pattern
> > > > > > > > 'XVIMTEST' does not match ''
> > > > > > > > Caught exception in Test_client_server(): Vim(call):E240: No
> > > > > > > > connection to the X server @ function
> > > > > > > > RunTheTest[24]..Test_client_server, line 19
> > > > > > > > Second run:
> > > > > > > > function RunTheTest[24]..Test_client_server line 17: Pattern
> > > > > > > > 'XVIMTEST' does not match ''
> > > > > > > > Caught exception in Test_client_server(): Vim(call):E240: No
> > > > > > > > connection to the X server @ function
> > > > > > > > RunTheTest[24]..Test_client_server, line 19
> > > > > > >
> > > > > > > Why is there no connection to the X server? Anyway, we could
> > > > > > > catch this
> > > > > > > error and give up.
> > > > > >
> > > > > > There might be the case one builds vim on a headless system. I.e.
> > > > > > some build servers of distro's?
> > > > >
> > > > > Can you try this patch:
> > > > >
> > > > >
> > > > > --- /home/mool/vim/git/vim80/src/testdir/test_clientserver.vim
> > > > > 2017-03-19 21:20:45.909034204 +0100
> > > > > +++ testdir/test_clientserver.vim 2017-03-22 22:19:57.761651837
> > > > > +0100
> > > > > @@ -11,6 +11,12 @@
> > > > > if cmd == ''
> > > > > return
> > > > > endif
> > > > > + try
> > > > > + call serverlist()
> > > > > + catch /E240:/
> > > > > + " No connection to the X server, give up.
> > > > > + finish
> > > > > + endtry
> > > > >
> > > > > let name = 'XVIMTEST'
> > > > > let cmd .= ' --servername ' . name
> > > >
> > > > In my environment, `:call serverlist()` always succeed and returns the
> > > > empty string.
> > > > So, above patch does not change the situation.
> > >
> > > It appears serverlist() can fail silently.
> > >
> > > Try this check instead:
> > >
> > > func Test_client_server()
> > > let cmd = GetVimCommand()
> > > if cmd == ''
> > > return
> > > endif
> > > if has('unix')
> > > try
> > > call remote_send('xxx', '')
> > > catch
> > > if v:exception =~ 'E240:'
> > > " No connection to the X server, give up.
> > > finish
> >
> > That should be "return".
> >
> > > endif
> > > " ignore other errors
> > > endtry
> > > endif
>
> Thanks for the fixing this issue at Patch 8.0.0507
>
> Please also fix the following one as reported first. I attached a patch.
Thanks. Let's be a bit more specific with the error message. On unix
$DISPLAY not set means we can't run the test, even when Vim has the
necessary features.
As Kazunobu suggested, checking for "x11" is the most accurate.
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