diff --git a/src/testdir/test_quickfix.vim b/src/testdir/test_quickfix.vim
index 6a8d0e7..671381c 100644
--- a/src/testdir/test_quickfix.vim
+++ b/src/testdir/test_quickfix.vim
@@ -487,6 +487,19 @@
   " This wipes out the buffer, make sure that doesn't cause trouble.
   Xclose
 
+  if a:cchar == 'l'
+      " When a help window is present, running :lhelpgrep should reuse the
+      " help window and not the current window
+      new | only
+      call g:Xsetlist([], 'f')
+      help index.txt
+      wincmd w
+      lhelpgrep quickfix
+      call assert_equal(1, winnr())
+      call assert_notequal([], getloclist(1))
+      call assert_equal([], getloclist(2))
+  endif
+
   new | only
 
   " Search for non existing help string
@@ -1684,6 +1697,10 @@
   call assert_equal('  error list 1 of 3; 1 ' . common, res[0])
   call assert_equal('  error list 2 of 3; 2 ' . common, res[1])
   call assert_equal('> error list 3 of 3; 3 ' . common, res[2])
+
+  call g:Xsetlist([], 'f')
+  let l = split(execute(a:cchar . 'hist'), "\n")
+  call assert_equal('No entries', l[0])
 endfunc
 
 func Test_history()
@@ -1862,6 +1879,11 @@
     let l = g:Xgetlist({'items':1})
     call assert_equal(0, len(l.items))
 
+    call g:Xsetlist([], 'r', {'title' : 'TestTitle'})
+    call g:Xsetlist([], 'r', {'items' : [{'filename' : 'F1', 'lnum' : 10, 'text' : 'L10'}]})
+    call g:Xsetlist([], 'r', {'items' : [{'filename' : 'F1', 'lnum' : 10, 'text' : 'L10'}]})
+    call assert_equal('TestTitle', g:Xgetlist({'title' : 1}).title)
+
     " The following used to crash Vim with address sanitizer
     call g:Xsetlist([], 'f')
     call g:Xsetlist([], 'a', {'items' : [{'filename':'F1', 'lnum':10}]})
@@ -1904,10 +1926,10 @@
     call g:Xsetlist([], 'r', l2)
     let newl1=g:Xgetlist({'nr':1,'all':1})
     let newl2=g:Xgetlist({'nr':2,'all':1})
-    call assert_equal(':Fruits', newl1.title)
+    call assert_equal('Fruits', newl1.title)
     call assert_equal(['Fruits'], newl1.context)
     call assert_equal('Line20', newl1.items[0].text)
-    call assert_equal(':Colors', newl2.title)
+    call assert_equal('Colors', newl2.title)
     call assert_equal(['Colors'], newl2.context)
     call assert_equal('Line10', newl2.items[0].text)
     call g:Xsetlist([], 'f')