Merge remote-tracking branch 'upstream/master' into floattitle

1 files changed, 54 insertions, 4 deletions

diff --git a/test/functional/ui/wildmode_spec.lua b/test/functional/ui/wildmode_spec.lua
index 98398bc7a1..58ffa3bda8 100644
--- a/test/functional/ui/wildmode_spec.lua
+++ b/test/functional/ui/wildmode_spec.lua
@@ -461,20 +461,20 @@ end)
 describe('command line completion', function()
   local screen
   before_each(function()
+    clear()
     screen = Screen.new(40, 5)
     screen:set_default_attr_ids({
      [1] = {bold = true, foreground = Screen.colors.Blue1},
      [2] = {foreground = Screen.colors.Grey0, background = Screen.colors.Yellow},
      [3] = {bold = true, reverse = true},
     })
+    screen:attach()
   end)
   after_each(function()
     os.remove('Xtest-functional-viml-compl-dir')
   end)
 
   it('lists directories with empty PATH', function()
-    clear()
-    screen:attach()
     local tmp = funcs.tempname()
     command('e '.. tmp)
     command('cd %:h')
@@ -491,8 +491,6 @@ describe('command line completion', function()
   end)
 
   it('completes env var names #9681', function()
-    clear()
-    screen:attach()
     command('let $XTEST_1 = "foo" | let $XTEST_2 = "bar"')
     command('set wildmenu wildmode=full')
     feed(':!echo $XTEST_<tab>')
@@ -521,6 +519,58 @@ describe('command line completion', function()
       :!echo $XTEST_1AaあB^                    |
     ]])
   end)
+
+  it('does not leak memory with <S-Tab> with wildmenu and only one match #19874', function()
+    meths.set_option('wildmenu', true)
+    meths.set_option('wildmode', 'full')
+    meths.set_option('wildoptions', 'pum')
+
+    feed(':sign unpla<S-Tab>')
+    screen:expect([[
+                                              |
+      {1:~                                       }|
+      {1:~                                       }|
+      {1:~                                       }|
+      :sign unplace^                           |
+    ]])
+
+    feed('<Space>buff<Tab>')
+    screen:expect([[
+                                              |
+      {1:~                                       }|
+      {1:~                                       }|
+      {1:~                                       }|
+      :sign unplace buffer=^                   |
+    ]])
+  end)
+
+  it('does not show matches with <S-Tab> without wildmenu with wildmode=full', function()
+    meths.set_option('wildmenu', false)
+    meths.set_option('wildmode', 'full')
+
+    feed(':sign <S-Tab>')
+    screen:expect([[
+                                              |
+      {1:~                                       }|
+      {1:~                                       }|
+      {1:~                                       }|
+      :sign unplace^                           |
+    ]])
+  end)
+
+  it('shows matches with <S-Tab> without wildmenu with wildmode=list', function()
+    meths.set_option('wildmenu', false)
+    meths.set_option('wildmode', 'list')
+
+    feed(':sign <S-Tab>')
+    screen:expect([[
+      {3:                                        }|
+      :sign define                            |
+      define    list      undefine            |
+      jump      place     unplace             |
+      :sign unplace^                           |
+    ]])
+  end)
 end)
 
 describe('ui/ext_wildmenu', function()