test: use poke_eventloop() instead of sleep(10) where possible (#19794)

Using sleep(10) to wait for typeahead to finish is flaky, especially on
macOS, where legacy/global_spec.lua has failed several times.

4 files changed, 19 insertions, 21 deletions

diff --git a/test/functional/editor/ctrl_c_spec.lua b/test/functional/editor/ctrl_c_spec.lua
index 60131bf2a4..4548e1aa34 100644
--- a/test/functional/editor/ctrl_c_spec.lua
+++ b/test/functional/editor/ctrl_c_spec.lua
@@ -2,6 +2,7 @@ local helpers = require('test.functional.helpers')(after_each)
 local Screen = require('test.functional.ui.screen')
 local clear, feed, source = helpers.clear, helpers.feed, helpers.source
 local command = helpers.command
+local poke_eventloop = helpers.poke_eventloop
 local sleep = helpers.sleep
 
 describe("CTRL-C (mapped)", function()
@@ -57,11 +58,9 @@ describe("CTRL-C (mapped)", function()
   it('interrupts :sleep', function()
     command('nnoremap <C-C> <Nop>')
     feed(':sleep 100<CR>')
-    -- wait for :sleep to start
-    sleep(10)
+    poke_eventloop()  -- wait for :sleep to start
     feed('foo<C-C>')
-    -- wait for input buffer to be flushed
-    sleep(10)
+    poke_eventloop()  -- wait for input buffer to be flushed
     feed('i')
     screen:expect([[
       ^                                                    |
@@ -77,10 +76,9 @@ describe("CTRL-C (mapped)", function()
     command('nnoremap <C-C> <Nop>')
     command('nmap <F2> <Ignore><F2>')
     feed('<F2>')
-    sleep(10)
+    sleep(10)  -- wait for the key to enter typeahead
     feed('foo<C-C>')
-    -- wait for input buffer to be flushed
-    sleep(10)
+    poke_eventloop()  -- wait for input buffer to be flushed
     feed('i')
     screen:expect([[
       ^                                                    |
diff --git a/test/functional/legacy/ex_mode_spec.lua b/test/functional/legacy/ex_mode_spec.lua
index a8f54c6939..f21c47e175 100644
--- a/test/functional/legacy/ex_mode_spec.lua
+++ b/test/functional/legacy/ex_mode_spec.lua
@@ -6,7 +6,7 @@ local eq = helpers.eq
 local eval = helpers.eval
 local feed = helpers.feed
 local meths = helpers.meths
-local sleep = helpers.sleep
+local poke_eventloop = helpers.poke_eventloop
 
 before_each(clear)
 
@@ -143,7 +143,7 @@ describe('Ex mode', function()
       ^                                                            |
     ]])
     feed('<C-C>')
-    sleep(10)  -- Wait for input to be flushed
+    poke_eventloop()  -- Wait for input to be flushed
     feed('foo<CR>')
     screen:expect([[
       Entering Ex mode.  Type "visual" to go to Normal mode.      |
diff --git a/test/functional/legacy/global_spec.lua b/test/functional/legacy/global_spec.lua
index 9f4528530c..ff02c41e6c 100644
--- a/test/functional/legacy/global_spec.lua
+++ b/test/functional/legacy/global_spec.lua
@@ -3,7 +3,7 @@ local Screen = require('test.functional.ui.screen')
 local clear = helpers.clear
 local exec = helpers.exec
 local feed = helpers.feed
-local sleep = helpers.sleep
+local poke_eventloop = helpers.poke_eventloop
 
 before_each(clear)
 
@@ -24,7 +24,7 @@ describe(':global', function()
     ]])
 
     feed(':g/foo/norm :<C-V>;<CR>')
-    sleep(10)  -- Wait for :sleep to start
+    poke_eventloop()  -- Wait for :sleep to start
     feed('<C-C>')
     screen:expect([[
       ^foo                                                                        |
@@ -37,7 +37,7 @@ describe(':global', function()
 
     -- Also test in Ex mode
     feed('gQg/foo/norm :<C-V>;<CR>')
-    sleep(10)  -- Wait for :sleep to start
+    poke_eventloop()  -- Wait for :sleep to start
     feed('<C-C>')
     screen:expect([[
       {0:                                                                           }|
diff --git a/test/functional/legacy/mapping_spec.lua b/test/functional/legacy/mapping_spec.lua
index 456acc12b5..c1f23ab0a6 100644
--- a/test/functional/legacy/mapping_spec.lua
+++ b/test/functional/legacy/mapping_spec.lua
@@ -131,11 +131,11 @@ describe('mapping', function()
     command('set selectmode=mouse')
 
     command('nnoremap <LeftDrag> <LeftDrag><Cmd><CR>')
-    sleep(10)
+    poke_eventloop()
     meths.input_mouse('left', 'press', '', 0, 0, 0)
-    sleep(10)
+    poke_eventloop()
     meths.input_mouse('left', 'drag', '', 0, 0, 1)
-    sleep(10)
+    poke_eventloop()
     eq('s', eval('mode()'))
   end)
 
@@ -144,22 +144,22 @@ describe('mapping', function()
 
     command('inoremap <LeftDrag> <LeftDrag><Cmd>let g:dragged = 1<CR>')
     feed('i')
-    sleep(10)
+    poke_eventloop()
     meths.input_mouse('left', 'press', '', 0, 0, 0)
-    sleep(10)
+    poke_eventloop()
     meths.input_mouse('left', 'drag', '', 0, 0, 1)
-    sleep(10)
+    poke_eventloop()
     eq(1, eval('g:dragged'))
     eq('v', eval('mode()'))
     feed([[<C-\><C-N>]])
 
     command([[inoremap <LeftDrag> <LeftDrag><C-\><C-N>]])
     feed('i')
-    sleep(10)
+    poke_eventloop()
     meths.input_mouse('left', 'press', '', 0, 0, 0)
-    sleep(10)
+    poke_eventloop()
     meths.input_mouse('left', 'drag', '', 0, 0, 1)
-    sleep(10)
+    poke_eventloop()
     eq('n', eval('mode()'))
   end)