[tests] add tests

.babelrc

@@ -0,0 +1,4 @@
+{
+  "comments": false,
+  "presets": ["es2015"]
+}

.travis.yml

@@ -0,0 +1,14 @@
+language: node_js
+node_js:
+  - "8"
+  - "7"
+  - "6"
+  - "5"
+  - "4"
+cache:
+  directories:
+    - "node_modules"
+  yarn: true
+sudo: false
+after_success:
+  - npm run test:cover:travis

dist/index.js

@@ -1,7 +1,7 @@
 'use strict';
 
-const mdFence = require('markdown-it-fence');
-const render = require('./render');
+var mdFence = require('markdown-it-fence');
+var render = require('./render');
 
 module.exports = function (md, options) {
   return mdFence(md, 'vis', {

dist/render.js

@@ -1,42 +1,39 @@
-const yaml = require('js-yaml');
-const markvisBar = require('markvis-bar');
-const markvisLine = require('markvis-line');
-const markvisPie = require('markvis-pie');
+'use strict';
+
+var yaml = require('js-yaml');
+var markvisBar = require('markvis-bar');
+var markvisLine = require('markvis-line');
+var markvisPie = require('markvis-pie');
 
 function render(options) {
-  return function (tokens, idx, _options, env, self) {
-    const token = tokens[idx];
-    // if (token.hidden) return '';
+  return function (tokens, idx, _options, env) {
+    var token = tokens[idx];
 
-    let doc;
+    var doc = void 0;
 
-    // load content
     try {
       doc = yaml.load(token.content);
     } catch (err) {
       throw err;
     }
 
-    const defaultChart = {
+    var defaultChart = {
       bar: markvisBar,
       line: markvisLine,
       pie: markvisPie
     };
 
-    let chart = defaultChart;
+    var chart = defaultChart;
 
-    // insert custom chart if any
-    if (options.hasOwnProperty('chart')) {
+    if (options && Object.prototype.hasOwnProperty.call(options, 'chart')) {
       chart = Object.assign({}, defaultChart, options.chart);
     }
 
-    const renderer = chart[doc.layout];
+    var renderer = chart[doc.layout];
 
-    // all options merged
-    const opts = Object.assign({}, options, env, doc);
+    var opts = Object.assign({}, options, env, doc);
 
-    // render the content
-    const result = renderer ? renderer(opts) : token.content;
+    var result = renderer ? renderer(opts) : token.content;
 
     return result;
   };

examples/basic.js

@@ -2,84 +2,9 @@ const fs = require('fs')
 const d3node = require('d3-node')
 const md = require('markdown-it')()
 const vis = require('../src/index.js')
+const content = require('./content')
 
-const testStr = md.use(vis).render(`
-# Hello World
-
-I'm **testing**!
-
-## Test
-
-
-    console.log('inline code');
-
-
-\`\`\`js
-console.log('language javascript')
-\`\`\`
-
-\`\`\`vis
-layout: bar
-data: [
-  { key: 0, value: 5 },
-  { key: 1, value: 4 },
-  { key: 2, value: 7 },
-  { key: 3, value: 2 },
-  { key: 4, value: 4 },
-  { key: 5, value: 8 },
-  { key: 6, value: 3 },
-  { key: 7, value: 6 }
-]
-\`\`\`
-
-
-\`\`\`vis
-layout: line
-data: [
-  { key: 0, value: 5 },
-  { key: 1, value: 4 },
-  { key: 2, value: 7 },
-  { key: 3, value: 2 },
-  { key: 4, value: 4 },
-  { key: 5, value: 8 },
-  { key: 6, value: 3 },
-  { key: 7, value: 6 }
-]
-\`\`\`
-
-
-\`\`\`vis
-layout: pie
-data: [
-  { key: 0, value: 5 },
-  { key: 1, value: 4 },
-  { key: 2, value: 7 },
-  { key: 3, value: 2 },
-  { key: 4, value: 4 },
-  { key: 5, value: 8 },
-  { key: 6, value: 3 },
-  { key: 7, value: 6 }
-]
-\`\`\`
-
-\`\`\`vis
-layout: no_layout
-data: [
-  { key: 0, value: 5 },
-  { key: 1, value: 4 },
-  { key: 2, value: 7 },
-  { key: 3, value: 2 },
-  { key: 4, value: 4 },
-  { key: 5, value: 8 },
-  { key: 6, value: 3 },
-  { key: 7, value: 6 }
-]
-\`\`\`
-`, {
-  d3node
-})
-
-console.log(testStr)
+const testStr = md.use(vis).render(content(), { d3node })
 
 fs.writeFile('./examples/basic.html', testStr, err => {
   if (err) throw err

examples/content.js

@@ -0,0 +1,73 @@
+module.exports = () => `
+# Hello World
+
+I'm **testing**!
+
+## Test
+
+
+    console.log('inline code');
+
+
+\`\`\`js
+console.log('language javascript')
+\`\`\`
+
+\`\`\`vis
+layout: bar
+data: [
+  { key: 0, value: 5 },
+  { key: 1, value: 4 },
+  { key: 2, value: 7 },
+  { key: 3, value: 2 },
+  { key: 4, value: 4 },
+  { key: 5, value: 8 },
+  { key: 6, value: 3 },
+  { key: 7, value: 6 }
+]
+\`\`\`
+
+
+\`\`\`vis
+layout: line
+data: [
+  { key: 0, value: 5 },
+  { key: 1, value: 4 },
+  { key: 2, value: 7 },
+  { key: 3, value: 2 },
+  { key: 4, value: 4 },
+  { key: 5, value: 8 },
+  { key: 6, value: 3 },
+  { key: 7, value: 6 }
+]
+\`\`\`
+
+
+\`\`\`vis
+layout: pie
+data: [
+  { key: 0, value: 5 },
+  { key: 1, value: 4 },
+  { key: 2, value: 7 },
+  { key: 3, value: 2 },
+  { key: 4, value: 4 },
+  { key: 5, value: 8 },
+  { key: 6, value: 3 },
+  { key: 7, value: 6 }
+]
+\`\`\`
+
+\`\`\`vis
+layout: no_layout
+data: [
+  { key: 0, value: 5 },
+  { key: 1, value: 4 },
+  { key: 2, value: 7 },
+  { key: 3, value: 2 },
+  { key: 4, value: 4 },
+  { key: 5, value: 8 },
+  { key: 6, value: 3 },
+  { key: 7, value: 6 }
+]
+\`\`\`
+`