patch 8.1.1116: cannot enforce a Vim script style
Problem: Cannot enforce a Vim script style.
Solution: Add the :scriptversion command. (closes #3857)
diff --git a/src/testdir/test_eval_stuff.vim b/src/testdir/test_eval_stuff.vim
index 6d61ce9..d6aeb6f 100644
--- a/src/testdir/test_eval_stuff.vim
+++ b/src/testdir/test_eval_stuff.vim
@@ -123,3 +123,39 @@
let a..=b
call assert_equal('ab', a)
endfunc
+
+scriptversion 2
+func Test_string_concat_scriptversion2()
+ let a = 'a'
+ let b = 'b'
+
+ call assert_fails('echo a . b', 'E15:')
+ call assert_fails('let a .= b', 'E985:')
+ call assert_fails('let vers = 1.2.3', 'E15:')
+
+ if has('float')
+ let f = .5
+ call assert_equal(0.5, f)
+ endif
+endfunc
+
+scriptversion 1
+func Test_string_concat_scriptversion1()
+ let a = 'a'
+ let b = 'b'
+
+ echo a . b
+ let a .= b
+ let vers = 1.2.3
+ call assert_equal('123', vers)
+
+ if has('float')
+ call assert_fails('let f = .5', 'E15:')
+ endif
+endfunc
+
+func Test_scriptversion()
+ call writefile(['scriptversion 9'], 'Xversionscript')
+ call assert_fails('source Xversionscript', 'E999:')
+ call delete('Xversionscript')
+endfunc