test: enable "exit event follows stdout, stderr" [ci skip] #10929

- Update the test to work with changes since it was originally written.
- Keep the test pending() because it still fails:

      Expected objects to be the same.
      Passed in:
      (table: 0x50ce9e38) {
        [1] = {
          [1] = 'notification'
          [2] = 'stderr'
          [3] = {
            [1] = 0
            [2] = {
              [1] = '' } } }
       *[2] = {
          [1] = 'notification'
          [2] = 'stdout'
         *[3] = {
            [1] = 0
           *[2] = {
             *[1] = '' } } }
        [3] = {
          [1] = 'notification'
          [2] = 'exit'
          [3] = {
            [1] = 0
            [2] = 143 } } }
      Expected:
      (table: 0x50ce9870) {
        [1] = {
          [1] = 'notification'
          [2] = 'stderr'
          [3] = {
            [1] = 0
            [2] = {
              [1] = '' } } }
       *[2] = {
          [1] = 'notification'
          [2] = 'stdout'
         *[3] = {
            [1] = 0
           *[2] = {
             *[1] = 'abcdef' } } }
        [3] = {
          [1] = 'notification'
          [2] = 'stdout'
          [3] = {
            [1] = 0
            [2] = {
              [1] = '' } } } }

1 files changed, 19 insertions, 6 deletions

diff --git a/test/functional/core/job_spec.lua b/test/functional/core/job_spec.lua
index 3a1be7bc52..88951e5b51 100644
--- a/test/functional/core/job_spec.lua
+++ b/test/functional/core/job_spec.lua
@@ -733,15 +733,28 @@ describe('jobs', function()
     end)
   end)
 
-  -- FIXME need to wait until jobsend succeeds before calling jobstop
-  pending('will only emit the "exit" event after "stdout" and "stderr"', function()
-    nvim('command', "let g:job_opts.on_stderr  = function('s:OnEvent')")
+  pending('exit event follows stdout, stderr', function()
+    nvim('command', "let g:job_opts.on_stderr  = function('OnEvent')")
     nvim('command', "let j = jobstart(['cat', '-'], g:job_opts)")
-    local jobid = nvim('eval', 'j')
     nvim('eval', 'jobsend(j, "abcdef")')
     nvim('eval', 'jobstop(j)')
-    eq({'notification', 'j', {0, {jobid, 'stdout', {'abcdef'}}}}, next_msg())
-    eq({'notification', 'j', {0, {jobid, 'exit'}}}, next_msg())
+    expect_msg_seq(
+      { {'notification', 'stdout', {0, {'abcdef'}}},
+        {'notification', 'stdout', {0, {''}}},
+        {'notification', 'stderr', {0, {''}}},
+      },
+      -- Alternative sequence:
+      { {'notification', 'stderr', {0, {''}}},
+        {'notification', 'stdout', {0, {'abcdef'}}},
+        {'notification', 'stdout', {0, {''}}},
+      },
+      -- Alternative sequence:
+      { {'notification', 'stdout', {0, {'abcdef'}}},
+        {'notification', 'stderr', {0, {''}}},
+        {'notification', 'stdout', {0, {''}}},
+      }
+    )
+    eq({'notification', 'exit', {0, 143}}, next_msg())
   end)
 
   it('cannot have both rpc and pty options', function()