Add assertion to test that a file exists

package.json

@@ -45,7 +45,7 @@
         "grunt-bower-install-simple": "0.9.2"
     },
     "scripts": {
-        "test": "node_modules/.bin/mocha --reporter list --timeout 15000"
+        "test": "node_modules/.bin/mocha --reporter spec --timeout 15000"
     },
     "repository": {
         "type": "git",

test/assertions.js

@@ -0,0 +1,11 @@
+var fs = require('fs');
+var path = require('path');
+var should = require('should');
+
+should.Assertion.add('file', function(file, description) {
+    this.params = { operator: 'have file ' + file, message: description };
+
+    this.obj.should.have.property('options').which.is.an.Object;
+    this.obj.options.should.have.property('output').which.is.a.String;
+    this.assert(fs.existsSync(path.resolve(this.obj.options.output, file)));
+});

test/helper.js

@@ -9,6 +9,9 @@ var fsUtil = require('../lib/utils/fs');
 var Book = require('../').Book;
 var LOG_LEVELS = require('../').LOG_LEVELS;
 
+require("./assertions");
+
+
 var BOOKS = {};
 var TMPDIR = os.tmpdir();
 

test/json.js

@@ -1,9 +1,11 @@
 
 describe('JSON generator', function () {
-    it('should correctly generate a basic book to json', function() {
-        return books.generate("basic", "json")
-            .then(function(book) {
-
-            });
+    describe('Basic Book', function() {
+        it('should correctly output a README.json', function() {
+            return books.generate("basic", "json")
+                .then(function(book) {
+                    book.should.have.file("README.json");
+                });
+        });
     });
 });