commit 531be47ac5522807b265c6287021a01c9b895ac9
author Bram Moolenaar <Bram@vim.org> Wed Sep 23 22:38:05 2020 +0200
committer Bram Moolenaar <Bram@vim.org> Wed Sep 23 22:38:05 2020 +0200
tree 6ff8a223defdf477cdd5243fc2eee4f53ae71292
parent 851d108313317a062371a6750e6c6bf370a9bafa

patch 8.2.1736: failure to compile a pattern not tested much

Problem:    Failure to compile a pattern not tested much.
Solution:   Add tests where a pattern fails to compile. (Yegappan Lakshmanan,
            closes #7004)

src/testdir/test_syntax.vim

diff --git a/src/testdir/test_syntax.vim b/src/testdir/test_syntax.vim
index 8a02185..dc05355 100644
--- a/src/testdir/test_syntax.vim
+++ b/src/testdir/test_syntax.vim
@@ -373,6 +373,7 @@
   call AssertFails('syntax cluster contains=Abc', 'E400:')
   call AssertFails("syntax match Character /'.'", 'E401:')
   call AssertFails("syntax match Character /'.'/a", 'E402:')
+  call assert_fails('syntax sync linecont /\%(/', 'E53:')
   call assert_fails('syntax sync linecont /pat', 'E404:')
   call assert_fails('syntax sync linecont', 'E404:')
   call assert_fails('syntax sync linecont /pat1/ linecont /pat2/', 'E403:')
@@ -382,6 +383,7 @@
   call AssertFails('syntax match ccFoo "Foo" nextgroup=ALLBUT,F', 'E407:')
   call AssertFails('syntax region Block start="{" contains=F,ALLBUT', 'E408:')
   call AssertFails("syntax match Characters contains=a.*x /'.'/", 'E409:')
+  call assert_fails('syntax match Search /abc/ contains=ALLBUT,/\%(/', 'E53:')
 endfunc
 
 func Test_syn_sync()