2 files changed, 33 insertions, 0 deletions
diff --git a/test/functional/legacy/function_sort_spec.lua b/test/functional/legacy/function_sort_spec.lua
index 9083911021..b274aee94b 100644
--- a/test/functional/legacy/function_sort_spec.lua
+++ b/test/functional/legacy/function_sort_spec.lua
@@ -2,6 +2,9 @@ local helpers = require('test.functional.helpers')
 local clear = helpers.clear
 local eq = helpers.eq
 local eval = helpers.eval
+local execute = helpers.execute
+local exc_exec = helpers.exc_exec
+local neq = helpers.neq
 
 describe('sort', function()
   before_each(clear)
@@ -26,4 +29,25 @@ describe('sort', function()
   it('numbers compared as float', function()
     eq({0.28, 3, 13.5}, eval("sort([13.5, 0.28, 3], 'f')"))
   end)
+
+  it('ability to call sort() from a compare function', function()
+    execute('func Compare1(a, b) abort')
+    execute([[call sort(range(3), 'Compare2')]])
+    execute('return a:a - a:b')
+    execute('endfunc')
+
+    execute('func Compare2(a, b) abort')
+    execute('return a:a - a:b')
+    execute('endfunc')
+    eq({1, 3, 5}, eval("sort([3, 1, 5], 'Compare1')"))
+  end)
+
+  it('default sort', function()
+    -- docs say omitted, empty or zero argument sorts on string representation
+    eq({'2', 'A', 'AA', 'a', 1, 3.3}, eval('sort([3.3, 1, "2", "A", "a", "AA"])'))
+    eq({'2', 'A', 'AA', 'a', 1, 3.3}, eval([[sort([3.3, 1, "2", "A", "a", "AA"], '')]]))
+    eq({'2', 'A', 'AA', 'a', 1, 3.3}, eval('sort([3.3, 1, "2", "A", "a", "AA"], 0)'))
+    eq({'2', 'A', 'a', 'AA', 1, 3.3}, eval('sort([3.3, 1, "2", "A", "a", "AA"], 1)'))
+    neq(exc_exec('call sort([3.3, 1, "2"], 3)'):find('E474:'), nil)
+  end)
 end)
diff --git a/test/functional/legacy/quickfix_spec.lua b/test/functional/legacy/quickfix_spec.lua
index 315b8ca682..9c378aef60 100644
--- a/test/functional/legacy/quickfix_spec.lua
+++ b/test/functional/legacy/quickfix_spec.lua
@@ -3,6 +3,8 @@
 local helpers = require('test.functional.helpers')
 local source, clear = helpers.source, helpers.clear
 local eq, nvim, call = helpers.eq, helpers.meths, helpers.call
+local eval = helpers.eval
+local execute = helpers.execute
 
 local function expected_empty()
   eq({}, nvim.get_vvar('errors'))
@@ -306,4 +308,11 @@ describe('helpgrep', function()
     call('XbufferTests', 'l')
     expected_empty()
   end)
+
+  it('autocommands triggered by quickfix can get title', function()
+    execute('au FileType qf let g:foo = get(w:, "quickfix_title", "NONE")')
+    execute('call setqflist([])')
+    execute('copen')
+    eq(':setqflist()', eval('g:foo'))
+  end)
 end)