commit 0e05de46226eb4e5ea580beefa71831f92d613d3
author Bram Moolenaar <Bram@vim.org> Wed Mar 25 22:23:46 2020 +0100
committer Bram Moolenaar <Bram@vim.org> Wed Mar 25 22:23:46 2020 +0100
tree 4ae0b308520e7dfe603d78dc0ab540998eb69bbe
parent bfcfd5784a2fe950d8e58d1d534bbbb4824524eb

patch 8.2.0448: various functions not properly tested

Problem:    Various functions not properly tested.
Solution:   Add more tests, especially for failures. (Yegappan Lakshmanan,
            closes #5843)

src/testdir/test_substitute.vim

diff --git a/src/testdir/test_substitute.vim b/src/testdir/test_substitute.vim
index 2ac6f45..b4105fa 100644
--- a/src/testdir/test_substitute.vim
+++ b/src/testdir/test_substitute.vim
@@ -242,6 +242,11 @@
   setl nomodifiable
   call assert_fails('s/foo/bar/', 'E21:')
 
+  call assert_fails("let s=substitute([], 'a', 'A', 'g')", 'E730:')
+  call assert_fails("let s=substitute('abcda', [], 'A', 'g')", 'E730:')
+  call assert_fails("let s=substitute('abcda', 'a', [], 'g')", 'E730:')
+  call assert_fails("let s=substitute('abcda', 'a', 'A', [])", 'E730:')
+
   bwipe!
 endfunc