patch 8.1.1418: win_execute() is not implemented yet
Problem: Win_execute() is not implemented yet.
Solution: Implement it.
diff --git a/src/testdir/test_execute_func.vim b/src/testdir/test_execute_func.vim
index b84fbeb..78561b3 100644
--- a/src/testdir/test_execute_func.vim
+++ b/src/testdir/test_execute_func.vim
@@ -78,3 +78,27 @@
endfor
call assert_equal('xyz ', text2)
endfunc
+
+func Test_win_execute()
+ let thiswin = win_getid()
+ new
+ let otherwin = win_getid()
+ call setline(1, 'the new window')
+ call win_gotoid(thiswin)
+ let line = win_execute(otherwin, 'echo getline(1)')
+ call assert_match('the new window', line)
+
+ if has('textprop')
+ let popupwin = popup_create('the popup win', {'line': 2, 'col': 3})
+ redraw
+ let line = win_execute(popupwin, 'echo getline(1)')
+ call assert_match('the popup win', line)
+
+ call assert_fails('call win_execute(popupwin, "bwipe!")', 'E937:')
+
+ call popup_close(popupwin)
+ endif
+
+ call win_gotoid(otherwin)
+ bwipe!
+endfunc