fix(src): should ignore comma in Code note

package.json

@@ -34,11 +34,12 @@
     "babel-cli": "^6.7.7",
     "babel-preset-es2015": "^6.6.0",
     "babel-register": "^6.7.2",
-    "mocha": "^2.4.5",
-    "textlint-tester": "^1.2.0"
+    "mocha": "^3.0.2",
+    "textlint-tester": "^2.0.0"
   },
   "dependencies": {
     "sentence-splitter": "^2.0.0",
+    "textlint-util-to-string": "^2.0.0",
     "unist-util-filter": "^0.2.1"
   }
 }

src/textlint-rule-max-comma.js

@@ -2,20 +2,24 @@
 "use strict";
 import {split, Syntax as SentenceSyntax} from "sentence-splitter";
 const filter = require("unist-util-filter");
+const StringSource = require("textlint-util-to-string");
 function countOfComma(text) {
     return text.split(",").length - 1;
 }
 const defaultOptions = {
     // default: max comma count is 4
     max: 4
 };
-module.exports = function (context, options = defaultOptions) {
+module.exports = function(context, options = defaultOptions) {
     const maxComma = options.max || defaultOptions.max;
     const {Syntax, RuleError, report, getSource} = context;
     return {
         [Syntax.Paragraph](node){
-            const nodeWithoutCode = filter(node, (node) => node.type !== Syntax.Code);
-            const text = getSource(nodeWithoutCode);
+            const nodeWithoutCode = filter(node, (node) => {
+                return node.type !== Syntax.Code;
+            });
+            const source = new StringSource(nodeWithoutCode);
+            const text = source.toString();
             const sentences = split(text).filter(node => node.type === SentenceSyntax.Sentence);
             sentences.forEach(sentence => {
                 const sentenceValue = sentence.value;

test/textlint-rule-max-comma-test.js

@@ -8,6 +8,7 @@ tester.run("no-todo", rule, {
         "This is text.",
         // 3
         "0, 1, 2, 3",
+        "`sum(0,1,2,3,4,5,6,7,8,9,10)` is ok",
         {
             options: {
                 max: 5