Autocmds don't appear to work

[runiq]

Hi,

It looks like autocmds in tests aren't registered.

How to reproduce:

• plugin/foo.vim:

  augroup Bla
  autocmd!
  autocmd OptionSet background let g:foo = 'bar'
  augroup END

• t/foo.vim:

  " t/foo.vim
  describe 'foo'
  it 'registers autocmds'
    set background=dark
    source plugin/foo.vim
    set background=light
    Expect g:foo ==# 'bar'
  end
  end

Result:

$ bundle exec vim-flavor test
-------- Preparing dependencies
Checking versions...
  Use kana/vim-vspec ... 1.9.0
Deploying plugins...
  kana/vim-vspec 1.9.0 ... skipped (already deployed)
Completed.
-------- Testing a Vim plugin
t/foo.vim ..
not ok 1 - foo registers autocmds
# {example}, line 4
# Vim(call):E121: Undefined variable: g:foo
Failed 1/1 subtests

Test Summary Report
-------------------
t/foo.vim (Wstat: 0 Tests: 1 Failed: 1)
  Failed test:  1
Files=1, Tests=1,  0 wallclock secs ( 0.01 usr  0.00 sys +  0.02 cusr  0.00 csys =  0.03 CPU)
Result: FAIL

Note the Undefined variable: g:foo, which doesn't happen if I run the commands in my test function manually.

Do you know why that is so?

Anyway, thanks a lot for this plugin! :)

[kana]

Hmm, that's strange. I wrote many tests for several plugins which use autocmd and I've never experienced such a problem. I'll look into it later.

[kana]

Just to make sure, would you mind pasting the result of vim --version?

[runiq]

vim --version

VIM - Vi IMproved 8.2 (2019 Dec 12, compiled Mar  3 2020 00:00:00)
Included patches: 1-348
Modified by 
Compiled by 
Huge version without GUI.  Features included (+) or not (-):
+acl               -farsi             -mouse_sysmouse    -tag_old_static
+arabic            +file_in_path      +mouse_urxvt       -tag_any_white
+autocmd           +find_in_path      +mouse_xterm       -tcl
+autochdir         +float             +multi_byte        +termguicolors
-autoservername    +folding           +multi_lang        +terminal
-balloon_eval      -footer            -mzscheme          +terminfo
+balloon_eval_term +fork()            +netbeans_intg     +termresponse
-browse            +gettext           +num64             +textobjects
++builtin_terms    -hangul_input      +packages          +textprop
+byte_offset       +iconv             +path_extra        +timers
+channel           +insert_expand     +perl/dyn          +title
+cindent           +job               +persistent_undo   -toolbar
-clientserver      +jumplist          +popupwin          +user_commands
-clipboard         +keymap            +postscript        +vartabs
+cmdline_compl     +lambda            +printer           +vertsplit
+cmdline_hist      +langmap           +profile           +virtualedit
+cmdline_info      +libcall           -python            +visual
+comments          +linebreak         +python3/dyn       +visualextra
+conceal           +lispindent        +quickfix          +viminfo
+cryptv            +listcmds          +reltime           +vreplace
+cscope            +localmap          +rightleft         +wildignore
+cursorbind        +lua/dyn           +ruby/dyn          +wildmenu
+cursorshape       +menu              +scrollbind        +windows
+dialog_con        +mksession         +signs             +writebackup
+diff              +modify_fname      +smartindent       -X11
+digraphs          +mouse             -sound             -xfontset
-dnd               -mouseshape        +spell             -xim
-ebcdic            +mouse_dec         +startuptime       -xpm
+emacs_tags        +mouse_gpm         +statusline        -xsmp
+eval              -mouse_jsbterm     -sun_workshop      -xterm_clipboard
+ex_extra          +mouse_netterm     +syntax            -xterm_save
+extra_search      +mouse_sgr         +tag_binary
   system vimrc file: "/etc/vimrc"
     user vimrc file: "$HOME/.vimrc"
 2nd user vimrc file: "~/.vim/vimrc"
      user exrc file: "$HOME/.exrc"
       defaults file: "$VIMRUNTIME/defaults.vim"
  fall-back for $VIM: "/etc"
 f-b for $VIMRUNTIME: "/usr/share/vim/vim82"
Compilation: gcc -c -I. -Iproto -DHAVE_CONFIG_H     -O2 -g -pipe -Wall -Werror=format-security -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1
Linking: gcc   -L. -Wl,-z,relro  -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -fstack-protector-strong -rdynamic -Wl,-export-dynamic -Wl,--enable-new-dtags -Wl,-z,relro -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld  -Wl,-z,relro  -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -lpython3.7m -lcrypt -lpthread -ldl  -lutil -lm  -L/usr/local/lib -Wl,--as-needed -o vim        -lm  -lselinux  -lncurses -lacl -lattr -lgpm -ldl   -Wl,--enable-new-dtags -Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -fstack-protector-strong -L/usr/local/lib  -L/usr/lib64/perl5/CORE -lperl -lpthread -lresolv -ldl -lm -lcrypt -lutil -lc

I'm on an up-to-date Fedora 31 in case that matters.

[kana]

I confirmed that the problem is reproducible.

And I noticed that there are two types of autocmd events — some events work fine in tests, but other events don't work in tests for some reason. For example, TabEnter and BufReadCmd work in tests, but OptionSet and BufRead don't work in tests.

I'll dig into the problem later.

[runiq]

No need to hurry, I found a workaround for now. :)