Add length check for unicode chars

jamesls · jamesls · commit 00578915662c · 2015-09-22T17:23:33.000-07:00
Should be number of codepoints, not utf-8 length.
diff --git a/tests/functions.json b/tests/functions.json
@@ -175,6 +175,10 @@
       "expression": "length('abc')",
       "result": 3
     },
+    {
+      "expression": "length('✓foo')",
+      "result": 4
+    },
     {
       "expression": "length('')",
       "result": 0
