Refactor

test/utils.js

@@ -0,0 +1,31 @@
+var assert = require('assert')
+var utils  = require('../src/utils')
+
+describe('utils', function() {
+  
+  describe('getRemovable', function() {
+
+    it('should return removable documents', function() {
+      
+      var db = {
+        posts: [
+          {id: 1, comment: 1}
+        ],
+        comments: [
+          {id: 1, postId: 1},
+          // Comments below references a post that doesn't exist
+          {id: 2, postId: 2},
+          {id: 3, postId: 2},
+        ]
+      }
+
+      var expected = [
+        ['comments', 2],
+        ['comments', 3]
+      ]
+
+      assert.deepEqual(expected, utils.getRemovable(db))
+
+    })
+  })
+})