patch 8.1.0008: no test for strwidth()
Problem: No test for strwidth().
Solution: Add a test. (Dominique Pelle, closes #2931)
diff --git a/src/testdir/test_functions.vim b/src/testdir/test_functions.vim
index 49e5d1f..97e7e23 100644
--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -96,6 +96,30 @@
call assert_fails('call min(v:none)', 'E712:')
endfunc
+func Test_strwidth()
+ for aw in ['single', 'double']
+ exe 'set ambiwidth=' . aw
+ call assert_equal(0, strwidth(''))
+ call assert_equal(1, strwidth("\t"))
+ call assert_equal(3, strwidth('Vim'))
+ call assert_equal(4, strwidth(1234))
+ call assert_equal(5, strwidth(-1234))
+
+ if has('multi_byte')
+ call assert_equal(2, strwidth('😉'))
+ call assert_equal(17, strwidth('Eĥoŝanĝo ĉiuĵaŭde'))
+ call assert_equal((aw == 'single') ? 6 : 7, strwidth('Straße'))
+ endif
+
+ call assert_fails('call strwidth({->0})', 'E729:')
+ call assert_fails('call strwidth([])', 'E730:')
+ call assert_fails('call strwidth({})', 'E731:')
+ call assert_fails('call strwidth(1.2)', 'E806:')
+ endfor
+
+ set ambiwidth&
+endfunc
+
func Test_str2nr()
call assert_equal(0, str2nr(''))
call assert_equal(1, str2nr('1'))