patch 8.0.0202: no test for invalid syntax group name
Problem: No test for invalid syntax group name.
Solution: Add a test for group name error and warning.
diff --git a/src/testdir/test_syntax.vim b/src/testdir/test_syntax.vim
index 232da75..8a00f99 100644
--- a/src/testdir/test_syntax.vim
+++ b/src/testdir/test_syntax.vim
@@ -335,3 +335,14 @@
hi clear Foo
hi clear Bar
endfunc
+
+func Test_invalid_name()
+ syn clear
+ syn keyword Nop yes
+ call assert_fails("syntax keyword Wr\x17ong bar", 'E669:')
+ syntax keyword @Wrong bar
+ call assert_match('W18:', execute('1messages'))
+ syn clear
+ hi clear Nop
+ hi clear @Wrong
+endfunc