add example test.

example.jdists.js

@@ -0,0 +1,45 @@
+var assert = require('should');
+var jpacks = require('../.');
+var util = require('util');
+
+var zlib = require('../schemas-extend/zlib');
+zlib(jpacks);
+
+var printValue;
+function print(value) {
+  printValue = value;
+}
+
+/*<remove>*/
+  // <!--jdists encoding="glob" pattern="./src/**/*.js" export="#files" /-->
+/*</remove>*/
+
+/*<jdists encoding="jhtmls,regex" pattern="/~/g" replacement="--" data="#files" export="#example">*/
+forEach(function (item) {
+!#{'describe("' + item + '", function () {'}
+  <!~jdists import="#{item}?example*" /~>
+!#{'});'}
+});
+  <!~jdists import="schemas-extend/zlib.js?example*" /~>
+/*</jdists>*/
+
+<!--jdists export="#pattern">/^\s*\*\s*@example\s*(.*)$/mg</jdists-->
+<!--jdists export="#replacement">  it("$1", function () {</jdists-->
+<!--jdists encoding="regex" import="#example" pattern="#pattern" replacement="#replacement" export="#example" /-->
+
+<!--jdists export="#pattern">/^\s*```js\s*$/mg</jdists-->
+<!--jdists export="#replacement"></jdists-->
+<!--jdists encoding="regex" import="#example" pattern="#pattern" replacement="#replacement" export="#example" /-->
+
+<!--jdists export="#pattern">/^\s*```\s*$/mg</jdists-->
+<!--jdists export="#replacement">  });</jdists-->
+<!--jdists encoding="regex" import="#example" pattern="#pattern" replacement="#replacement" export="#example" /-->
+
+<!--jdists export="#pattern">/console\.log/g</jdists-->
+<!--jdists export="#replacement">print</jdists-->
+<!--jdists encoding="regex" import="#example" pattern="#pattern" replacement="#replacement" export="#example" /-->
+
+<!--jdists export="#pattern">/\/\/ ->\s*(.*)/gm</jdists-->
+<!--jdists export="#replacement">assert.equal(printValue, '$1')</jdists-->
+<!--jdists encoding="regex" import="#example" pattern="#pattern" replacement="#replacement" export="#example" /-->
+/*<jdists import="#example"/>*/