Add tests for cse

autoload/vimtex/env.vim

@@ -91,7 +91,7 @@ function! vimtex#env#change_prompt(type) " {{{1
   call vimtex#echo#status(['Change surrounding environment: ',
         \ ['VimtexWarning', l:name]])
   echohl VimtexMsg
-  let l:new_env = input('> ', '', 'customlist,' . s:sidwrap('input_complete'))
+  let l:new_env = input('> ', '', 'customlist,vimtex#env#input_complete')
   echohl None
   if empty(l:new_env) | return | endif
 
@@ -123,21 +123,7 @@ function! vimtex#env#is_inside(env) " {{{1
 endfunction
 
 " }}}1
-
-function! s:pos_prev(env) " {{{1
-    return a:env.cnum > 1
-          \ ? [0, a:env.lnum, a:env.cnum-1, 0]
-          \ : [0, max([a:env.lnum-1, 1]), strlen(getline(a:env.lnum-1)), 0]
-endfunction
-
-" }}}1
-
-function! s:sidwrap(func) " {{{1
-  return matchstr(expand('<sfile>'), '\zs<SNR>\d\+_\ze.*$') . a:func
-endfunction
-
-" }}}1
-function! s:input_complete(lead, cmdline, pos) " {{{1
+function! vimtex#env#input_complete(lead, cmdline, pos) " {{{1
   " Always include displaymath
   let l:cands = ['\[']
 
@@ -157,4 +143,12 @@ endfunction
 
 " }}}1
 
+function! s:pos_prev(env) " {{{1
+    return a:env.cnum > 1
+          \ ? [0, a:env.lnum, a:env.cnum-1, 0]
+          \ : [0, max([a:env.lnum-1, 1]), strlen(getline(a:env.lnum-1)), 0]
+endfunction
+
+" }}}1
+
 " vim: fdm=marker sw=2

test/vader/env.vader

@@ -0,0 +1,43 @@
+Before:
+  set buftype=
+  silent w!
+
+After:
+  set buftype=nofile
+  silent call delete('[Vader-workbench]')
+
+Given tex (Environments: foo and bar):
+  \begin{foo}
+    Foo
+  \end{foo}
+
+  \begin{bar}
+    Bar
+  \end{bar}
+
+Do (Change env: foo -> baz):
+  csebaz\<cr>
+
+Expect tex (Verify):
+  \begin{baz}
+    Foo
+  \end{baz}
+
+  \begin{bar}
+    Bar
+  \end{bar}
+
+Do (Change env: foo -> bar (with completion)):
+  cse\<c-z>\<c-z>\<c-z>\<cr>
+
+Expect tex (Verify):
+  \begin{bar}
+    Foo
+  \end{bar}
+
+  \begin{bar}
+    Bar
+  \end{bar}
+
+Before:
+After:

test/vader/minivimrc

@@ -4,4 +4,8 @@ let &rtp .= isdirectory('vader.vim') ? ',vader.vim' : ',../../../vader.vim'
 filetype plugin indent on
 syntax enable
 
+" Personal settings to get consistent results
+set wildmode=longest:full,full
+set wildcharm=<c-z>
+
 let g:tex_flavor = 'latex'