vim-patch:partial:9.1.0613: tests: termdebug test may fail and leave file around

Problem:  tests: termdebug test may fail and leave temp file around
          (Dominique Pellé)
Solution: only run balloon_show() if the function exists, validate
          termdebug is running using the g: termdebug_is_running var,
          use defer to delete temporary files

Only include:
- guard balloon_show() in the termdebug plugin
- wait for g:termdebug_is_running in Test_termdebug_basic()

The remaining upstream test cleanups do not apply here.

fixes: vim/vim#15334

2979cfc262

Co-authored-by: Christian Brabandt <cb@256bit.org>
AI-assisted: Codex

runtime/pack/dist/opt/termdebug/plugin/termdebug.vim

@@ -69,6 +69,9 @@ set cpo&vim
 command -nargs=* -complete=file -bang Termdebug call s:StartDebug(<bang>0, <f-args>)
 command -nargs=+ -complete=file -bang TermdebugCommand call s:StartDebugCommand(<bang>0, <f-args>)
 
+" Keep track of whether Termdebug is running for tests and users.
+let g:termdebug_is_running = v:false
+
 let s:pc_id = 12
 let s:asm_id = 13
 let s:break_id = 14  " breakpoint number is added to this
@@ -137,7 +140,7 @@ func s:StartDebugCommand(bang, ...)
 endfunc
 
 func s:StartDebug_internal(dict)
-  if exists('s:gdbwin')
+  if get(g:, 'termdebug_is_running', v:false) || exists('s:gdbwin')
     call s:Echoerr('Terminal debugger already running, cannot run two')
     return
   endif
@@ -223,6 +226,7 @@ func s:StartDebug_internal(dict)
   if exists('#User#TermdebugStartPost')
     doauto <nomodeline> User TermdebugStartPost
   endif
+  let g:termdebug_is_running = v:true
 endfunc
 
 " Use when debugger didn't start or ended.
@@ -816,6 +820,7 @@ func s:EndDebugCommon()
   endif
 
   au! TermDebug
+  let g:termdebug_is_running = v:false
 endfunc
 
 func s:EndPromptDebug(job_id, exit_code, event)

test/old/testdir/test_plugin_termdebug.vim

@@ -63,6 +63,7 @@ func Test_termdebug_basic()
 
   edit XTD_basic.c
   Termdebug ./XTD_basic
+  call WaitForAssert({-> assert_true(get(g:, "termdebug_is_running", v:false))})
   call WaitForAssert({-> assert_equal(3, winnr('$'))})
   let gdb_buf = winbufnr(1)
   wincmd b
@@ -196,6 +197,7 @@ func Test_termdebug_basic()
     let g:termdebug_config = {}
     let g:termdebug_config['use_prompt'] = use_prompt
     TermdebugCommand ./XTD_basic arg args
+    call WaitForAssert({-> assert_true(get(g:, "termdebug_is_running", v:false))})
     call WaitForAssert({-> assert_equal(3, winnr('$'))})
     wincmd t
     quit!
@@ -218,6 +220,7 @@ func Test_termdebug_tbreak()
   execute 'edit ' .. src_name
   execute 'Termdebug ./' .. bin_name
 
+  call WaitForAssert({-> assert_true(get(g:, "termdebug_is_running", v:false))})
   call WaitForAssert({-> assert_equal(3, winnr('$'))})
   let gdb_buf = winbufnr(1)
   wincmd b
@@ -279,6 +282,7 @@ func Test_termdebug_mapping()
   call assert_true(maparg('-', 'n', 0, 1)->empty())
   call assert_true(maparg('+', 'n', 0, 1)->empty())
   Termdebug
+  call WaitForAssert({-> assert_true(get(g:, "termdebug_is_running", v:false))})
   call WaitForAssert({-> assert_equal(3, winnr('$'))})
   wincmd b
   call assert_false(maparg('K', 'n', 0, 1)->empty())
@@ -301,6 +305,7 @@ func Test_termdebug_mapping()
   nnoremap - :echom "-"<cr>
   nnoremap + :echom "+"<cr>
   Termdebug
+  call WaitForAssert({-> assert_true(get(g:, "termdebug_is_running", v:false))})
   call WaitForAssert({-> assert_equal(3, winnr('$'))})
   wincmd b
   call assert_false(maparg('K', 'n', 0, 1)->empty())
@@ -338,6 +343,7 @@ func Test_termdebug_mapping()
   " Start termdebug from foo
   buffer foo
   Termdebug
+  call WaitForAssert({-> assert_true(get(g:, "termdebug_is_running", v:false))})
   call WaitForAssert({-> assert_equal(3, winnr('$'))})
   wincmd b
   call assert_true(maparg('K', 'n', 0, 1).buffer)
@@ -440,6 +446,7 @@ function Test_termdebug_save_restore_variables()
   let g:termdebug_config['map_K'] = 1
 
   Termdebug
+  call WaitForAssert({-> assert_true(get(g:, "termdebug_is_running", v:false))})
   call WaitForAssert({-> assert_equal(3, winnr('$'))})
   call WaitForAssert({-> assert_match(&mousemodel, 'popup_setpos')})
   wincmd t