patch 8.2.2340: win_execute() unexpectedly returns number zero when failing
Problem: win_execute() unexpectedly returns number zero when failing.
Solution: Return an empty string. (closes #7665)
diff --git a/src/testdir/test_execute_func.vim b/src/testdir/test_execute_func.vim
index e02b08e..0363717 100644
--- a/src/testdir/test_execute_func.vim
+++ b/src/testdir/test_execute_func.vim
@@ -89,6 +89,8 @@
call win_gotoid(thiswin)
let line = win_execute(otherwin, 'echo getline(1)')
call assert_match('the new window', line)
+ let line = win_execute(134343, 'echo getline(1)')
+ call assert_equal('', line)
if has('popupwin')
let popupwin = popup_create('the popup win', {'line': 2, 'col': 3})