diff --git a/CHANGELOG.md b/CHANGELOG.md
index f1c3cb6d..66066587 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,11 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 - Implement Danger.js to notify contributors when CHANGELOG.md is missing in PR.
 - Allow to scroll in full page article view of default newsfeed module with gesture events from [MMM-Gestures](https://github.com/thobach/MMM-Gestures)
 - Changed 'compliments.js' - update DOM if remote compliments are loaded instead of waiting one updateInterval to show custom compliments
+- Automated unit tests utils, deprecated, translator, cloneObject(lockstrings)
+- Automated integration tests translations
+
+### Changed
+- Optimized automated unit tests cloneObject, cmpVersions
 
 ### Fixed
 - News article in fullscreen (iframe) is now shown in front of modules.
diff --git a/js/class.js b/js/class.js
index ec75f6f2..ceccc6f1 100644
--- a/js/class.js
+++ b/js/class.js
@@ -92,7 +92,4 @@ function cloneObject(obj) {
 /*************** DO NOT EDIT THE LINE BELOW ***************/
 if (typeof module !== "undefined") {
 	module.exports = Class;
-	module.exports._test = {
-		cloneObject: cloneObject
-	}
 }
diff --git a/js/module.js b/js/module.js
index 57bdde4f..8eb6dca9 100644
--- a/js/module.js
+++ b/js/module.js
@@ -476,11 +476,3 @@ Module.register = function (name, moduleDefinition) {
 	Log.log("Module registered: " + name);
 	Module.definitions[name] = moduleDefinition;
 };
-
-if (typeof exports != "undefined") { // For testing purpose only
-	// A good a idea move the function cmpversions a helper file.
-	// It's used into other side.
-	exports._test = {
-		cmpVersions: cmpVersions
-	}
-}
diff --git a/js/translator.js b/js/translator.js
index b82a739e..34bbb717 100644
--- a/js/translator.js
+++ b/js/translator.js
@@ -156,11 +156,12 @@ var Translator = (function() {
 
 			return key;
 		},
-		/* load(module, file, callback)
+		/* load(module, file, isFallback, callback)
 		 * Load a translation file (json) and remember the data.
 		 *
 		 * argument module Module - The module to load the translation file for.
 		 * argument file string - Path of the file we want to load.
+		 * argument isFallback boolean - Flag to indicate fallback translations.
 		 * argument callback function - Function called when done.
 		 */
 		load: function(module, file, isFallback, callback) {
@@ -216,10 +217,12 @@ var Translator = (function() {
 			// defined translation after the following line.
 			for (var first in translations) {break;}
 
-			Log.log("Loading core translation fallback file: " + translations[first]);
-			loadJSON(translations[first], function(translations) {
-				self.coreTranslationsFallback = translations;
-			});
+			if (first) {
+				Log.log("Loading core translation fallback file: " + translations[first]);
+				loadJSON(translations[first], function(translations) {
+					self.coreTranslationsFallback = translations;
+				});
+			}
 		},
 	};
 })();
diff --git a/package-lock.json b/package-lock.json
index 1f77b632..0e3b9a31 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -48,6 +48,12 @@
       "integrity": "sha1-0Hf2glVx+CEy+d/67Vh7QCn+/1c=",
       "dev": true
     },
+    "abab": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/abab/-/abab-1.0.4.tgz",
+      "integrity": "sha1-X6rZwsB/YN12dw9xzwJbYqY8/U4=",
+      "dev": true
+    },
     "abbrev": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
@@ -63,6 +69,21 @@
         "negotiator": "0.6.1"
       }
     },
+    "acorn": {
+      "version": "5.4.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.4.1.tgz",
+      "integrity": "sha512-XLmq3H/BVvW6/GbxKryGxWORz1ebilSsUDlyC27bXhWGWAZWkGwS6FLHjOlwFXNFoWFQEO/Df4u0YYd0K3BQgQ==",
+      "dev": true
+    },
+    "acorn-globals": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/acorn-globals/-/acorn-globals-4.1.0.tgz",
+      "integrity": "sha512-KjZwU26uG3u6eZcfGbTULzFcsoz6pegNKtHPksZPOUsiKo5bUmiBPa38FuHZ/Eun+XYh/JCCkS9AS3Lu4McQOQ==",
+      "dev": true,
+      "requires": {
+        "acorn": "5.4.1"
+      }
+    },
     "acorn-jsx": {
       "version": "3.0.1",
       "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
@@ -288,6 +309,12 @@
       "integrity": "sha512-L3hKV5R/p5o81R7O02IGnwpDmkp6E982XhtbuwSe3O4qOtMMMtodicASA1Cny2U+aCXcNpml+m4dPsvsJ3jatg==",
       "dev": true
     },
+    "array-equal": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/array-equal/-/array-equal-1.0.0.tgz",
+      "integrity": "sha1-jCpe8kcv2ep0KwTHenUJO6J1fJM=",
+      "dev": true
+    },
     "array-find-index": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/array-find-index/-/array-find-index-1.0.2.tgz",
@@ -359,6 +386,12 @@
       "integrity": "sha1-7GphrlZIDAw8skHJVhjiCJL5Zyo=",
       "dev": true
     },
+    "async-limiter": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
+      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==",
+      "dev": true
+    },
     "asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -630,6 +663,12 @@
         "repeat-element": "1.1.2"
       }
     },
+    "browser-process-hrtime": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/browser-process-hrtime/-/browser-process-hrtime-0.1.2.tgz",
+      "integrity": "sha1-Ql1opY00R/AqBKqJQYf86K+Le44=",
+      "dev": true
+    },
     "browser-stdout": {
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.0.tgz",
@@ -1024,6 +1063,12 @@
         "dashify": "0.2.2"
       }
     },
+    "content-type-parser": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/content-type-parser/-/content-type-parser-1.0.2.tgz",
+      "integrity": "sha512-lM4l4CnMEwOLHAHr/P6MEZwZFPJFtAAKgL6pogbXmVZggIqXhdB6RbBtPOTsw2FcXwYhehRGERJmRrjOiIB8pQ==",
+      "dev": true
+    },
     "cookie": {
       "version": "0.3.1",
       "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.3.1.tgz",
@@ -1140,6 +1185,21 @@
       "integrity": "sha1-Xv1sLupeof1rasV+wEJ7GEUkJOo=",
       "dev": true
     },
+    "cssom": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/cssom/-/cssom-0.3.2.tgz",
+      "integrity": "sha1-uANhcMefB6kP8vFuIihAJ6JDhIs=",
+      "dev": true
+    },
+    "cssstyle": {
+      "version": "0.2.37",
+      "resolved": "https://registry.npmjs.org/cssstyle/-/cssstyle-0.2.37.tgz",
+      "integrity": "sha1-VBCXI0yyUTyDzu06zdwn/yeYfVQ=",
+      "dev": true,
+      "requires": {
+        "cssom": "0.3.2"
+      }
+    },
     "current-week-number": {
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/current-week-number/-/current-week-number-1.0.7.tgz",
@@ -1443,6 +1503,15 @@
       "integrity": "sha1-sXrtguirWeUt2cGbF1bg/BhyBMI=",
       "dev": true
     },
+    "domexception": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/domexception/-/domexception-1.0.1.tgz",
+      "integrity": "sha512-raigMkn7CJNNo6Ihro1fzG7wr3fHuYVytzquZKX5n0yizGsTcYgzdIUwj1X9pK0VvjeihV+XiclP+DjwbsSKug==",
+      "dev": true,
+      "requires": {
+        "webidl-conversions": "4.0.2"
+      }
+    },
     "domhandler": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/domhandler/-/domhandler-2.3.0.tgz",
@@ -1657,6 +1726,34 @@
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
       "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
     },
+    "escodegen": {
+      "version": "1.9.0",
+      "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-1.9.0.tgz",
+      "integrity": "sha512-v0MYvNQ32bzwoG2OSFzWAkuahDQHK92JBN0pTAALJ4RIxEZe766QJPDR8Hqy7XNUy5K3fnVL76OqYAdc4TZEIw==",
+      "dev": true,
+      "requires": {
+        "esprima": "3.1.3",
+        "estraverse": "4.2.0",
+        "esutils": "2.0.2",
+        "optionator": "0.8.2",
+        "source-map": "0.5.7"
+      },
+      "dependencies": {
+        "esprima": {
+          "version": "3.1.3",
+          "resolved": "https://registry.npmjs.org/esprima/-/esprima-3.1.3.tgz",
+          "integrity": "sha1-/cpRzuYTOJXjyI1TXOSdv/YqRjM=",
+          "dev": true
+        },
+        "source-map": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.5.7.tgz",
+          "integrity": "sha1-igOdLRAh0i0eoUyA2OpGi6LvP8w=",
+          "dev": true,
+          "optional": true
+        }
+      }
+    },
     "eslint": {
       "version": "4.16.0",
       "resolved": "https://registry.npmjs.org/eslint/-/eslint-4.16.0.tgz",
@@ -2919,6 +3016,15 @@
       "resolved": "https://registry.npmjs.org/hsts/-/hsts-2.1.0.tgz",
       "integrity": "sha512-zXhh/DqgrTXJ7erTN6Fh5k/xjMhDGXCqdYN3wvxUvGUQvnxcFfUd8E+6vLg/nk3ss1TYMb+DhRl25fYABioTvA=="
     },
+    "html-encoding-sniffer": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/html-encoding-sniffer/-/html-encoding-sniffer-1.0.2.tgz",
+      "integrity": "sha512-71lZziiDnsuabfdYiUeWdCVyKuqwWi23L8YeIgV9jSSZHCtb6wB1BKWooH7L3tn4/FuZJMVWyNaIDr4RGmaSYw==",
+      "dev": true,
+      "requires": {
+        "whatwg-encoding": "1.0.3"
+      }
+    },
     "html-tags": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/html-tags/-/html-tags-2.0.0.tgz",
@@ -3460,6 +3566,53 @@
       "integrity": "sha512-vE2hT1D0HLZCLLclfBSfkfTTedhVj0fubHpJBHKwwUWX0nSbhPAfk+SG9rTX95BYNmau8rGFfCeaT6T5OW1C2A==",
       "dev": true
     },
+    "jsdom": {
+      "version": "11.6.2",
+      "resolved": "https://registry.npmjs.org/jsdom/-/jsdom-11.6.2.tgz",
+      "integrity": "sha512-pAeZhpbSlUp5yQcS6cBQJwkbzmv4tWFaYxHbFVSxzXefqjvtRA851Z5N2P+TguVG9YeUDcgb8pdeVQRJh0XR3Q==",
+      "dev": true,
+      "requires": {
+        "abab": "1.0.4",
+        "acorn": "5.4.1",
+        "acorn-globals": "4.1.0",
+        "array-equal": "1.0.0",
+        "browser-process-hrtime": "0.1.2",
+        "content-type-parser": "1.0.2",
+        "cssom": "0.3.2",
+        "cssstyle": "0.2.37",
+        "domexception": "1.0.1",
+        "escodegen": "1.9.0",
+        "html-encoding-sniffer": "1.0.2",
+        "left-pad": "1.2.0",
+        "nwmatcher": "1.4.3",
+        "parse5": "4.0.0",
+        "pn": "1.1.0",
+        "request": "2.83.0",
+        "request-promise-native": "1.0.5",
+        "sax": "1.2.4",
+        "symbol-tree": "3.2.2",
+        "tough-cookie": "2.3.3",
+        "w3c-hr-time": "1.0.1",
+        "webidl-conversions": "4.0.2",
+        "whatwg-encoding": "1.0.3",
+        "whatwg-url": "6.4.0",
+        "ws": "4.0.0",
+        "xml-name-validator": "3.0.0"
+      },
+      "dependencies": {
+        "ws": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/ws/-/ws-4.0.0.tgz",
+          "integrity": "sha512-QYslsH44bH8O7/W2815u5DpnCpXWpEK44FmaHffNwgJI4JMaSZONgPBTOfrxJ29mXKbXak+LsJ2uAkDTYq2ptQ==",
+          "dev": true,
+          "requires": {
+            "async-limiter": "1.0.0",
+            "safe-buffer": "5.1.1",
+            "ultron": "1.1.0"
+          }
+        }
+      }
+    },
     "jshint": {
       "version": "2.9.5",
       "resolved": "https://registry.npmjs.org/jshint/-/jshint-2.9.5.tgz",
@@ -3735,6 +3888,12 @@
         "invert-kv": "1.0.0"
       }
     },
+    "left-pad": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/left-pad/-/left-pad-1.2.0.tgz",
+      "integrity": "sha1-0wpzxrggHY99jnlWupYWCHpo4O4=",
+      "dev": true
+    },
     "levn": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/levn/-/levn-0.3.0.tgz",
@@ -3877,6 +4036,12 @@
       "resolved": "https://registry.npmjs.org/lodash.reduce/-/lodash.reduce-4.6.0.tgz",
       "integrity": "sha1-8atrg5KZrUj3hKu/R2WW8DuRTTs="
     },
+    "lodash.sortby": {
+      "version": "4.7.0",
+      "resolved": "https://registry.npmjs.org/lodash.sortby/-/lodash.sortby-4.7.0.tgz",
+      "integrity": "sha1-7dFMgk4sycHgsKG0K7UhBRakJDg=",
+      "dev": true
+    },
     "log-symbols": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-2.1.0.tgz",
@@ -4402,6 +4567,12 @@
       "resolved": "https://registry.npmjs.org/number-is-nan/-/number-is-nan-1.0.1.tgz",
       "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0="
     },
+    "nwmatcher": {
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/nwmatcher/-/nwmatcher-1.4.3.tgz",
+      "integrity": "sha512-IKdSTiDWCarf2JTS5e9e2+5tPZGdkRJ79XjYV0pzK8Q9BpsFyBq1RGKxzs7Q8UBushGw7m6TzVKz6fcY99iSWw==",
+      "dev": true
+    },
     "oauth-sign": {
       "version": "0.8.2",
       "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.8.2.tgz",
@@ -4603,6 +4774,12 @@
       "integrity": "sha1-bVuTSkVpk7I9N/QKOC1vFmao5cY=",
       "dev": true
     },
+    "parse5": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/parse5/-/parse5-4.0.0.tgz",
+      "integrity": "sha512-VrZ7eOd3T1Fk4XWNXMgiGBK/z0MG48BWG2uQNU4I72fkQuKUTZpl+u9k+CxEG0twMVzSmXEEz12z5Fnw1jIQFA==",
+      "dev": true
+    },
     "parsejson": {
       "version": "0.0.3",
       "resolved": "https://registry.npmjs.org/parsejson/-/parsejson-0.0.3.tgz",
@@ -4719,6 +4896,12 @@
       "integrity": "sha512-ARhBOdzS3e41FbkW/XWrTEtukqqLoK5+Z/4UeDaLuSW+39JPeFgs4gCGqsrJHVZX0fUrx//4OF0K1CUGwlIFow==",
       "dev": true
     },
+    "pn": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/pn/-/pn-1.1.0.tgz",
+      "integrity": "sha512-2qHaIQr2VLRFoxe2nASzsV6ef4yOOH+Fi9FBOVH6cqeSgUnoyySPZkxzLuzd+RYOQTRpROA0ztTMqxROKSb/nA==",
+      "dev": true
+    },
     "postcss": {
       "version": "6.0.12",
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-6.0.12.tgz",
@@ -5452,6 +5635,34 @@
         }
       }
     },
+    "request-promise-core": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/request-promise-core/-/request-promise-core-1.1.1.tgz",
+      "integrity": "sha1-Pu4AssWqgyOc+wTFcA2jb4HNCLY=",
+      "dev": true,
+      "requires": {
+        "lodash": "4.17.5"
+      },
+      "dependencies": {
+        "lodash": {
+          "version": "4.17.5",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.5.tgz",
+          "integrity": "sha512-svL3uiZf1RwhH+cWrfZn3A4+U58wbP0tGVTLQPbjplZxZ8ROD9VLuNgsRniTlLe7OlSqR79RUehXgpBW/s0IQw==",
+          "dev": true
+        }
+      }
+    },
+    "request-promise-native": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/request-promise-native/-/request-promise-native-1.0.5.tgz",
+      "integrity": "sha1-UoF3D2jgyXGeUWP9P6tIIhX0/aU=",
+      "dev": true,
+      "requires": {
+        "request-promise-core": "1.1.1",
+        "stealthy-require": "1.1.1",
+        "tough-cookie": "2.3.3"
+      }
+    },
     "require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
@@ -5890,6 +6101,12 @@
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.3.1.tgz",
       "integrity": "sha1-+vUbnrdKrvOzrPStX2Gr8ky3uT4="
     },
+    "stealthy-require": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/stealthy-require/-/stealthy-require-1.1.1.tgz",
+      "integrity": "sha1-NbCYdbT/SfJqd35QmzCQoyJr8ks=",
+      "dev": true
+    },
     "string-width": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
@@ -6376,6 +6593,12 @@
       "integrity": "sha1-WPcc7jvVGbWdSyqEO2x95krAR2Q=",
       "dev": true
     },
+    "symbol-tree": {
+      "version": "3.2.2",
+      "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.2.tgz",
+      "integrity": "sha1-rifbOPZgp64uHDt9G8KQgZuFGeY=",
+      "dev": true
+    },
     "table": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/table/-/table-4.0.1.tgz",
@@ -6561,6 +6784,23 @@
         "punycode": "1.4.1"
       }
     },
+    "tr46": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/tr46/-/tr46-1.0.1.tgz",
+      "integrity": "sha1-qLE/1r/SSJUZZ0zN5VujaTtwbQk=",
+      "dev": true,
+      "requires": {
+        "punycode": "2.1.0"
+      },
+      "dependencies": {
+        "punycode": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/punycode/-/punycode-2.1.0.tgz",
+          "integrity": "sha1-X4Y+3Im5bbCQdLrXlHvwkFbKTn0=",
+          "dev": true
+        }
+      }
+    },
     "trim": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/trim/-/trim-0.0.1.tgz",
@@ -6862,6 +7102,15 @@
       "integrity": "sha512-8Xz4H3vhYRGbFupLtl6dHwMx0ojUcjt0HYkqZ9oBCfipd/5mD7Md58m2/dq7uPuZU/0T3Gb1m66KS9jn+I+14Q==",
       "dev": true
     },
+    "w3c-hr-time": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/w3c-hr-time/-/w3c-hr-time-1.0.1.tgz",
+      "integrity": "sha1-gqwr/2PZUOqeMYmlimViX+3xkEU=",
+      "dev": true,
+      "requires": {
+        "browser-process-hrtime": "0.1.2"
+      }
+    },
     "walk": {
       "version": "2.3.9",
       "resolved": "https://registry.npmjs.org/walk/-/walk-2.3.9.tgz",
@@ -7046,12 +7295,38 @@
         }
       }
     },
+    "webidl-conversions": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-4.0.2.tgz",
+      "integrity": "sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg==",
+      "dev": true
+    },
     "wgxpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/wgxpath/-/wgxpath-1.0.0.tgz",
       "integrity": "sha1-7vikudVYzEla06mit1FZfs2a9pA=",
       "dev": true
     },
+    "whatwg-encoding": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/whatwg-encoding/-/whatwg-encoding-1.0.3.tgz",
+      "integrity": "sha512-jLBwwKUhi8WtBfsMQlL4bUUcT8sMkAtQinscJAe/M4KHCkHuUJAF6vuB0tueNIw4c8ziO6AkRmgY+jL3a0iiPw==",
+      "dev": true,
+      "requires": {
+        "iconv-lite": "0.4.19"
+      }
+    },
+    "whatwg-url": {
+      "version": "6.4.0",
+      "resolved": "https://registry.npmjs.org/whatwg-url/-/whatwg-url-6.4.0.tgz",
+      "integrity": "sha512-Z0CVh/YE217Foyb488eo+iBv+r7eAQ0wSTyApi9n06jhcA3z6Nidg/EGvl0UFkg7kMdKxfBzzr+o9JF+cevgMg==",
+      "dev": true,
+      "requires": {
+        "lodash.sortby": "4.7.0",
+        "tr46": "1.0.1",
+        "webidl-conversions": "4.0.2"
+      }
+    },
     "which": {
       "version": "1.2.14",
       "resolved": "https://registry.npmjs.org/which/-/which-1.2.14.tgz",
@@ -7141,6 +7416,12 @@
       "resolved": "https://registry.npmjs.org/x-xss-protection/-/x-xss-protection-1.0.0.tgz",
       "integrity": "sha1-iYr7k4abJGYc+cUvnujbjtB2Tdk="
     },
+    "xml-name-validator": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/xml-name-validator/-/xml-name-validator-3.0.0.tgz",
+      "integrity": "sha512-A5CUptxDsvxKJEU3yO6DuWBSJz/qizqzJKOMIfUJHETbBw/sFaDxgd6fxm1ewUaM0jZ444Fc5vC5ROYurg/4Pw==",
+      "dev": true
+    },
     "xmlhttprequest-ssl": {
       "version": "1.5.3",
       "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.3.tgz",
diff --git a/package.json b/package.json
index ac397105..9830360e 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,8 @@
     "test": "NODE_ENV=test ./node_modules/mocha/bin/mocha tests --recursive",
     "test:unit": "NODE_ENV=test ./node_modules/mocha/bin/mocha tests/unit --recursive",
     "test:e2e": "NODE_ENV=test ./node_modules/mocha/bin/mocha tests/e2e --recursive",
-    "config:check": "node tests/configs/check_config.js"
+    "config:check": "node tests/configs/check_config.js",
+    "lint": "grunt"
   },
   "repository": {
     "type": "git",
@@ -44,6 +45,7 @@
     "grunt-stylelint": "latest",
     "grunt-yamllint": "latest",
     "http-auth": "^3.2.3",
+    "jsdom": "^11.6.2",
     "jshint": "^2.9.5",
     "mocha": "^4.1.0",
     "mocha-each": "^1.1.0",
diff --git a/tests/configs/data/StripComments.json b/tests/configs/data/StripComments.json
new file mode 100644
index 00000000..62d5d618
--- /dev/null
+++ b/tests/configs/data/StripComments.json
@@ -0,0 +1,13 @@
+{
+  // Escaped
+  "FOO\"BAR": "Today",
+
+  /*
+  * The following lines
+  * represent cardinal directions
+  */
+  "N": "N",
+  "E": "E",
+  "S": "S",
+  "W": "W"
+}
diff --git a/tests/configs/data/TranslationTest.json b/tests/configs/data/TranslationTest.json
new file mode 100644
index 00000000..5614b23c
--- /dev/null
+++ b/tests/configs/data/TranslationTest.json
@@ -0,0 +1,32 @@
+{
+  "LOADING": "Loading …",
+
+  "TODAY": "Today",
+  "TOMORROW": "Tomorrow",
+  "DAYAFTERTOMORROW": "In 2 days",
+  "RUNNING": "Ends in",
+  "EMPTY": "No upcoming events.",
+
+  "WEEK": "Week {weekNumber}",
+
+  "N": "N",
+  "NNE": "NNE",
+  "NE": "NE",
+  "ENE": "ENE",
+  "E": "E",
+  "ESE": "ESE",
+  "SE": "SE",
+  "SSE": "SSE",
+  "S": "S",
+  "SSW": "SSW",
+  "SW": "SW",
+  "WSW": "WSW",
+  "W": "W",
+  "WNW": "WNW",
+  "NW": "NW",
+  "NNW": "NNW",
+
+  "UPDATE_NOTIFICATION": "MagicMirror² update available.",
+  "UPDATE_NOTIFICATION_MODULE": "Update available for MODULE_NAME module.",
+  "UPDATE_INFO": "The current installation is COMMIT_COUNT behind on the BRANCH_NAME branch."
+}
diff --git a/tests/configs/data/en.json b/tests/configs/data/en.json
new file mode 100644
index 00000000..5614b23c
--- /dev/null
+++ b/tests/configs/data/en.json
@@ -0,0 +1,32 @@
+{
+  "LOADING": "Loading …",
+
+  "TODAY": "Today",
+  "TOMORROW": "Tomorrow",
+  "DAYAFTERTOMORROW": "In 2 days",
+  "RUNNING": "Ends in",
+  "EMPTY": "No upcoming events.",
+
+  "WEEK": "Week {weekNumber}",
+
+  "N": "N",
+  "NNE": "NNE",
+  "NE": "NE",
+  "ENE": "ENE",
+  "E": "E",
+  "ESE": "ESE",
+  "SE": "SE",
+  "SSE": "SSE",
+  "S": "S",
+  "SSW": "SSW",
+  "SW": "SW",
+  "WSW": "WSW",
+  "W": "W",
+  "WNW": "WNW",
+  "NW": "NW",
+  "NNW": "NNW",
+
+  "UPDATE_NOTIFICATION": "MagicMirror² update available.",
+  "UPDATE_NOTIFICATION_MODULE": "Update available for MODULE_NAME module.",
+  "UPDATE_INFO": "The current installation is COMMIT_COUNT behind on the BRANCH_NAME branch."
+}
diff --git a/tests/e2e/translations_spec.js b/tests/e2e/translations_spec.js
new file mode 100644
index 00000000..727f4623
--- /dev/null
+++ b/tests/e2e/translations_spec.js
@@ -0,0 +1,129 @@
+const fs = require("fs");
+const path = require("path");
+const chai = require("chai");
+const expect = chai.expect;
+const mlog = require("mocha-logger");
+const translations = require("../../translations/translations.js");
+const helmet = require("helmet");
+const {JSDOM} = require("jsdom");
+const express = require("express");
+
+describe("Translations", function() {
+	let server;
+
+	before(function() {
+		const app = express();
+		app.use(helmet());
+		app.use(function (req, res, next) {
+			res.header("Access-Control-Allow-Origin", "*");
+			next();
+		});
+		app.use("/translations", express.static(path.join(__dirname, "..", "..", "translations")));
+
+		server = app.listen(3000);
+	});
+
+	after(function() {
+		server.close();
+	});
+
+	it("should have a translation file in the specified path", function() {
+		for(let language in translations) {
+			const file = fs.statSync(translations[language]);
+			expect(file.isFile()).to.be.equal(true);
+		}
+	});
+
+	const mmm = {
+		name: "TranslationTest",
+		file(file) {
+			return `http://localhost:3000/${file}`;
+		}
+	};
+
+	describe("Parsing language files through the Translator class", function() {
+		for(let language in translations) {
+			it(`should parse ${language}`, function(done) {
+				const dom = new JSDOM(`<script>var translations = ${JSON.stringify(translations)}; var Log = {log: function(){}};</script>\
+					<script src="${path.join(__dirname, "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+					resources: "usable" });
+				dom.window.onload = function() {
+					const {Translator} = dom.window;
+
+					Translator.load(mmm, translations[language], false, function() {
+						expect(Translator.translations[mmm.name]).to.be.an("object");
+						expect(Object.keys(Translator.translations[mmm.name]).length).to.be.at.least(1);
+						done();
+					});
+				};
+			});
+		}
+	});
+
+	describe("Same keys", function() {
+		let base;
+
+		before(function(done) {
+			const dom = new JSDOM(`<script>var translations = ${JSON.stringify(translations)}; var Log = {log: function(){}};</script>\
+					<script src="${path.join(__dirname, "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+
+				Translator.load(mmm, translations.en, false, function() {
+					base = Object.keys(Translator.translations[mmm.name]).sort();
+					done();
+				});
+			};
+		});
+
+		for (let language in translations) {
+			if (language === "en") {
+				continue;
+			}
+
+			describe(`Translation keys of ${language}`, function() {
+				let keys;
+
+				before(function(done){
+					const dom = new JSDOM(`<script>var translations = ${JSON.stringify(translations)}; var Log = {log: function(){}};</script>\
+					<script src="${path.join(__dirname, "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+						resources: "usable" });
+					dom.window.onload = function() {
+						const {Translator} = dom.window;
+
+						Translator.load(mmm, translations[language], false, function() {
+							keys = Object.keys(Translator.translations[mmm.name]).sort();
+							done();
+						});
+					};
+				});
+
+				it(`${language} keys should be in base`, function() {
+					keys.forEach(function(key) {
+						expect(base.indexOf(key)).to.be.at.least(0);
+					});
+				});
+
+				it(`${language} should contain all base keys`, function() {
+					// TODO: when all translations are fixed, use
+					// expect(keys).to.deep.equal(base);
+					// instead of the try-catch-block
+
+					try {
+						expect(keys).to.deep.equal(base);
+					} catch(e) {
+						if (e instanceof chai.AssertionError) {
+							const diff = base.filter(key => !keys.includes(key));
+							mlog.pending(`Missing Translations for language ${language}: ${diff}`);
+							this.skip();
+						} else {
+							throw e;
+						}
+					}
+				})
+
+			});
+		}
+	});
+});
diff --git a/tests/unit/classes/class_spec.js b/tests/unit/classes/class_spec.js
new file mode 100644
index 00000000..d7a08121
--- /dev/null
+++ b/tests/unit/classes/class_spec.js
@@ -0,0 +1,109 @@
+const chai = require("chai");
+const expect = chai.expect;
+const path = require("path");
+const {JSDOM} = require("jsdom");
+
+describe("File js/class", function() {
+	describe("Test function cloneObject", function() {
+		let clone;
+		let dom;
+
+		before(function(done) {
+			dom = new JSDOM(`<script>var Log = {log: function() {}};</script>\
+					<script src="${path.join(__dirname, "..", "..", "..", "js", "class.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {cloneObject} = dom.window;
+				clone = cloneObject;
+				done();
+			};
+		});
+
+		it("should clone object", function() {
+			const expected = {name: "Rodrigo", web: "https://rodrigoramirez.com", project: "MagicMirror"};
+			const obj = clone(expected);
+			expect(obj).to.deep.equal(expected);
+			expect(expected === obj).to.equal(false);
+		});
+
+		it("should clone array", function() {
+			const expected = [1, null, undefined, "TEST"];
+			const obj = clone(expected);
+			expect(obj).to.deep.equal(expected);
+			expect(expected === obj).to.equal(false);
+		});
+
+		it("should clone number", function() {
+			let expected = 1;
+			let obj = clone(expected);
+			expect(obj).to.equal(expected);
+
+			expected = 1.23;
+			obj = clone(expected);
+			expect(obj).to.equal(expected);
+		});
+
+		it("should clone string", function() {
+			const expected = "Perfect stranger";
+			const obj = clone(expected);
+			expect(obj).to.equal(expected);
+		});
+
+		it("should clone undefined", function() {
+			const expected = undefined;
+			const obj = clone(expected);
+			expect(obj).to.equal(expected);
+		});
+
+		it("should clone null", function() {
+			const expected = null;
+			const obj = clone(expected);
+			expect(obj).to.equal(expected);
+		});
+
+		it("should clone nested object", function() {
+			const expected = {
+				name: "fewieden",
+				link: "https://github.com/fewieden",
+				versions: ["2.0", "2.1", "2.2"],
+				answerForAllQuestions: 42,
+				properties: {
+					items: [{foo: "bar"}, {lorem: "ipsum"}],
+					invalid: undefined,
+					nothing: null
+				}
+			};
+			const obj = clone(expected);
+			expect(obj).to.deep.equal(expected);
+			expect(expected === obj).to.equal(false);
+			expect(expected.versions === obj.versions).to.equal(false);
+			expect(expected.properties === obj.properties).to.equal(false);
+			expect(expected.properties.items === obj.properties.items).to.equal(false);
+			expect(expected.properties.items[0] === obj.properties.items[0]).to.equal(false);
+			expect(expected.properties.items[1] === obj.properties.items[1]).to.equal(false);
+		});
+
+		describe("Test lockstring code", function() {
+			let log;
+
+			before(function() {
+				log = dom.window.Log.log;
+				dom.window.Log.log = function cmp(str) {
+					expect(str).to.equal("lockStrings");
+				};
+			});
+
+			after(function() {
+				dom.window.Log.log = log;
+			});
+
+			it("should clone object and log lockStrings", function() {
+				const expected = {name: "Module", lockStrings: "stringLock"};
+				const obj = clone(expected);
+				expect(obj).to.deep.equal(expected);
+				expect(expected === obj).to.equal(false);
+			});
+		});
+	});
+});
+
diff --git a/tests/unit/classes/deprecated_spec.js b/tests/unit/classes/deprecated_spec.js
new file mode 100644
index 00000000..3b57e84b
--- /dev/null
+++ b/tests/unit/classes/deprecated_spec.js
@@ -0,0 +1,17 @@
+const chai = require("chai");
+const expect = chai.expect;
+const deprecated = require("../../../js/deprecated");
+
+describe("Deprecated", function() {
+	it("should be an object", function() {
+		expect(deprecated).to.be.an("object");
+	});
+
+	it("should contain configs array with deprecated options as strings", function() {
+		expect(deprecated.configs).to.be.an("array");
+		for (let option of deprecated.configs) {
+			expect(option).to.be.an("string");
+		}
+		expect(deprecated.configs).to.include("kioskmode");
+	});
+});
diff --git a/tests/unit/classes/translator_spec.js b/tests/unit/classes/translator_spec.js
new file mode 100644
index 00000000..fe1ce809
--- /dev/null
+++ b/tests/unit/classes/translator_spec.js
@@ -0,0 +1,298 @@
+const chai = require("chai");
+const expect = chai.expect;
+const path = require("path");
+const fs = require("fs");
+const helmet = require("helmet");
+const {JSDOM} = require("jsdom");
+const express = require("express");
+
+describe("Translator", function() {
+	let server;
+
+	before(function() {
+		const app = express();
+		app.use(helmet());
+		app.use(function (req, res, next) {
+			res.header("Access-Control-Allow-Origin", "*");
+			next();
+		});
+		app.use("/translations", express.static(path.join(__dirname, "..", "..", "..", "tests", "configs", "data")));
+
+		server = app.listen(3000);
+	});
+
+	after(function() {
+		server.close();
+	});
+
+	describe("translate", function() {
+		const translations = {
+			"MMM-Module": {
+				"Hello": "Hallo",
+				"Hello {username}": "Hallo {username}"
+			}
+		};
+
+		const coreTranslations = {
+			"Hello": "XXX",
+			"Hello {username}": "XXX",
+			"FOO": "Foo",
+			"BAR {something}": "Bar {something}"
+		};
+
+		const translationsFallback = {
+			"MMM-Module": {
+				"Hello": "XXX",
+				"Hello {username}": "XXX",
+				"FOO": "XXX",
+				"BAR {something}": "XXX",
+				"A key": "A translation"
+			}
+		};
+
+		const coreTranslationsFallback = {
+			"FOO": "XXX",
+			"BAR {something}": "XXX",
+			"Hello": "XXX",
+			"Hello {username}": "XXX",
+			"A key": "XXX",
+			"Fallback": "core fallback"
+		};
+
+		function setTranslations(Translator) {
+			Translator.translations = translations;
+			Translator.coreTranslations = coreTranslations;
+			Translator.translationsFallback = translationsFallback;
+			Translator.coreTranslationsFallback = coreTranslationsFallback;
+		}
+
+		it("should return custom module translation", function(done) {
+			const dom = new JSDOM(`<script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				setTranslations(Translator);
+				let translation = Translator.translate({name: "MMM-Module"}, "Hello");
+				expect(translation).to.be.equal("Hallo");
+				translation = Translator.translate({name: "MMM-Module"}, "Hello {username}", {username: "fewieden"});
+				expect(translation).to.be.equal("Hallo fewieden");
+				done();
+			};
+		});
+
+		it("should return core translation", function(done) {
+			const dom = new JSDOM(`<script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				setTranslations(Translator);
+				let translation = Translator.translate({name: "MMM-Module"}, "FOO");
+				expect(translation).to.be.equal("Foo");
+				translation = Translator.translate({name: "MMM-Module"}, "BAR {something}", {something: "Lorem Ipsum"});
+				expect(translation).to.be.equal("Bar Lorem Ipsum");
+				done();
+			};
+		});
+
+		it("should return custom module translation fallback", function(done) {
+			const dom = new JSDOM(`<script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				setTranslations(Translator);
+				const translation = Translator.translate({name: "MMM-Module"}, "A key");
+				expect(translation).to.be.equal("A translation");
+				done();
+			};
+		});
+
+		it("should return core translation fallback", function(done) {
+			const dom = new JSDOM(`<script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				setTranslations(Translator);
+				const translation = Translator.translate({name: "MMM-Module"}, "Fallback");
+				expect(translation).to.be.equal("core fallback");
+				done();
+			};
+		});
+
+		it("should return translation with placeholder for missing variables", function(done) {
+			const dom = new JSDOM(`<script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				setTranslations(Translator);
+				const translation = Translator.translate({name: "MMM-Module"}, "Hello {username}");
+				expect(translation).to.be.equal("Hallo {username}");
+				done();
+			};
+		});
+
+		it("should return key if no translation was found", function(done) {
+			const dom = new JSDOM(`<script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				setTranslations(Translator);
+				const translation = Translator.translate({name: "MMM-Module"}, "MISSING");
+				expect(translation).to.be.equal("MISSING");
+				done();
+			};
+		});
+	});
+
+	describe("load", function() {
+		const mmm = {
+			name: "TranslationTest",
+			file(file) {
+				return `http://localhost:3000/translations/${file}`;
+			}
+		};
+
+		it("should load translations", function(done) {
+			const dom = new JSDOM(`<script>var Log = {log: function(){}};</script><script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				const file = "TranslationTest.json";
+
+				Translator.load(mmm, file, false, function() {
+					const json = require(path.join(__dirname, "..", "..", "..", "tests", "configs", "data", file));
+					expect(Translator.translations[mmm.name]).to.be.deep.equal(json);
+					done();
+				});
+			};
+		});
+
+		it("should load translation fallbacks", function(done) {
+			const dom = new JSDOM(`<script>var Log = {log: function(){}};</script><script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				const file = "TranslationTest.json";
+
+				Translator.load(mmm, file, true, function() {
+					const json = require(path.join(__dirname, "..", "..", "..", "tests", "configs", "data", file));
+					expect(Translator.translationsFallback[mmm.name]).to.be.deep.equal(json);
+					done();
+				});
+			};
+		});
+
+		it("should strip comments", function(done) {
+			const dom = new JSDOM(`<script>var Log = {log: function(){}};</script><script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				const file = "StripComments.json";
+
+				Translator.load(mmm, file, false, function() {
+					expect(Translator.translations[mmm.name]).to.be.deep.equal({
+						"FOO\"BAR": "Today",
+						"N": "N",
+						"E": "E",
+						"S": "S",
+						"W": "W"
+					});
+					done();
+				});
+			};
+		});
+
+		it("should not load translations, if module fallback exists", function(done) {
+			const dom = new JSDOM(`<script>var Log = {log: function(){}};</script><script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator, XMLHttpRequest} = dom.window;
+				const file = "TranslationTest.json";
+
+				XMLHttpRequest.prototype.send = function() {
+					throw "Shouldn't load files";
+				};
+
+				Translator.translationsFallback[mmm.name] = {
+					Hello: "Hallo"
+				};
+
+				Translator.load(mmm, file, false, function() {
+					expect(Translator.translations[mmm.name]).to.be.undefined;
+					expect(Translator.translationsFallback[mmm.name]).to.be.deep.equal({
+						Hello: "Hallo"
+					});
+					done();
+				});
+			};
+		});
+	});
+
+	describe("loadCoreTranslations", function() {
+		it("should load core translations and fallback", function(done) {
+			const dom = new JSDOM(`<script>var translations = {en: "http://localhost:3000/translations/en.json"}; var Log = {log: function(){}};</script>\
+					<script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				Translator.loadCoreTranslations("en");
+
+				const en = require(path.join(__dirname, "..", "..", "..", "tests", "configs", "data", "en.json"));
+				setTimeout(function() {
+					expect(Translator.coreTranslations).to.be.deep.equal(en);
+					expect(Translator.coreTranslationsFallback).to.be.deep.equal(en);
+					done();
+				}, 500);
+			};
+		});
+
+		it("should load core fallback if language cannot be found", function(done) {
+			const dom = new JSDOM(`<script>var translations = {en: "http://localhost:3000/translations/en.json"}; var Log = {log: function(){}};</script>\
+					<script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				Translator.loadCoreTranslations("MISSINGLANG");
+
+				const en = require(path.join(__dirname, "..", "..", "..", "tests", "configs", "data", "en.json"));
+				setTimeout(function() {
+					expect(Translator.coreTranslations).to.be.deep.equal({});
+					expect(Translator.coreTranslationsFallback).to.be.deep.equal(en);
+					done();
+				}, 500);
+			};
+		});
+	});
+
+	describe("loadCoreTranslationsFallback", function() {
+		it("should load core translations fallback", function(done) {
+			const dom = new JSDOM(`<script>var translations = {en: "http://localhost:3000/translations/en.json"}; var Log = {log: function(){}};</script>\
+					<script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				Translator.loadCoreTranslationsFallback();
+
+				const en = require(path.join(__dirname, "..", "..", "..", "tests", "configs", "data", "en.json"));
+				setTimeout(function() {
+					expect(Translator.coreTranslationsFallback).to.be.deep.equal(en);
+					done();
+				}, 500);
+			};
+		});
+
+		it("should load core fallback if language cannot be found", function(done) {
+			const dom = new JSDOM(`<script>var translations = {}; var Log = {log: function(){}};</script>\
+					<script src="${path.join(__dirname, "..", "..", "..", "js", "translator.js")}">`, { runScripts: "dangerously",
+				resources: "usable" });
+			dom.window.onload = function() {
+				const {Translator} = dom.window;
+				Translator.loadCoreTranslations();
+
+				setTimeout(function() {
+					expect(Translator.coreTranslationsFallback).to.be.deep.equal({});
+					done();
+				}, 500);
+			};
+		});
+	});
+});
diff --git a/tests/unit/classes/utils_spec.js b/tests/unit/classes/utils_spec.js
new file mode 100644
index 00000000..d833f555
--- /dev/null
+++ b/tests/unit/classes/utils_spec.js
@@ -0,0 +1,41 @@
+var chai = require("chai");
+var expect = chai.expect;
+var Utils = require("../../../js/utils.js");
+var colors = require("colors/safe");
+
+describe("Utils", function() {
+	describe("colors", function() {
+		var colorsEnabled = colors.enabled;
+
+		afterEach(function() {
+			colors.enabled = colorsEnabled;
+		});
+
+		it("should have info, warn and error properties", function() {
+			expect(Utils.colors).to.have.property("info");
+			expect(Utils.colors).to.have.property("warn");
+			expect(Utils.colors).to.have.property("error");
+		});
+
+		it("properties should be functions", function() {
+			expect(Utils.colors.info).to.be.a("function");
+			expect(Utils.colors.warn).to.be.a("function");
+			expect(Utils.colors.error).to.be.a("function");
+		});
+
+		it("should print colored message in supported consoles", function() {
+			colors.enabled = true;
+			expect(Utils.colors.info("some informations")).to.be.equal("\u001b[34msome informations\u001b[39m");
+			expect(Utils.colors.warn("a warning")).to.be.equal("\u001b[33ma warning\u001b[39m");
+			expect(Utils.colors.error("ERROR!")).to.be.equal("\u001b[31mERROR!\u001b[39m");
+		});
+
+		it("should print message in unsupported consoles", function() {
+			colors.enabled = false;
+			expect(Utils.colors.info("some informations")).to.be.equal("some informations");
+			expect(Utils.colors.warn("a warning")).to.be.equal("a warning");
+			expect(Utils.colors.error("ERROR!")).to.be.equal("ERROR!");
+		});
+	});
+});
+
diff --git a/tests/unit/functions/class_spec.js b/tests/unit/functions/class_spec.js
deleted file mode 100644
index e2e6d521..00000000
--- a/tests/unit/functions/class_spec.js
+++ /dev/null
@@ -1,51 +0,0 @@
-var chai = require("chai");
-var expect = chai.expect;
-var jsClass = require("../../../js/class.js");
-
-describe("File js/class", function() {
-	describe("Test function cloneObject", function() {
-		var cloneObject = jsClass._test.cloneObject;
-
-		it("should be return equals object", function() {
-			var expected = {name: "Rodrigo", web: "https://rodrigoramirez.com", project: "MagicMirror"};
-			var obj = {};
-			obj = cloneObject(expected);
-			expect(expected).to.deep.equal(obj);
-		});
-
-		it("should be return equals int", function() {
-			var expected = 1;
-			var obj = {};
-			obj = cloneObject(expected);
-			expect(expected).to.equal(obj);
-		});
-
-		it("should be return equals string", function() {
-			var expected = "Perfect stranger";
-			var obj = {};
-			obj = cloneObject(expected);
-			expect(expected).to.equal(obj);
-		});
-
-		it("should be return equals undefined", function() {
-			var expected = undefined;
-			var obj = {};
-			obj = cloneObject(expected);
-			expect(undefined).to.equal(obj);
-		});
-
-		// CoverageME
-		/*
-		context("Test lockstring code", function() {
-			it("should be return equals object", function() {
-				var expected = {name: "Module", lockStrings: "stringLock"};
-				var obj = {};
-				obj = cloneObject(expected);
-				expect(expected).to.deep.equal(obj);
-			});
-		});
-		*/
-
-	});
-});
-
diff --git a/tests/unit/functions/cmp_versions_spec.js b/tests/unit/functions/cmp_versions_spec.js
index 9f3793c0..2bd6d269 100644
--- a/tests/unit/functions/cmp_versions_spec.js
+++ b/tests/unit/functions/cmp_versions_spec.js
@@ -1,20 +1,32 @@
-var chai = require("chai");
-var expect = chai.expect;
-var classMM = require("../../../js/class.js"); // require for load module.js
-var moduleMM =  require("../../../js/module.js")
+const chai = require("chai");
+const expect = chai.expect;
+const path = require("path");
+const {JSDOM} = require("jsdom");
 
 describe("Test function cmpVersions in js/module.js", function() {
+	let cmp;
+
+	before(function(done) {
+		const dom = new JSDOM(`<script>var Class = {extend: function() { return {}; }};</script>\
+				<script src="${path.join(__dirname, "..", "..", "..", "js", "module.js")}">`, { runScripts: "dangerously",
+			resources: "usable" });
+		dom.window.onload = function() {
+			const {cmpVersions} = dom.window;
+			cmp = cmpVersions;
+			done();
+		};
+	});
 
 	it("should return -1 when comparing 2.1 to 2.2", function() {
-		expect(moduleMM._test.cmpVersions("2.1", "2.2")).to.equal(-1);
+		expect(cmp("2.1", "2.2")).to.equal(-1);
 	});
 
 	it("should be return 0 when comparing 2.2 to 2.2", function() {
-		expect(moduleMM._test.cmpVersions("2.2", "2.2")).to.equal(0);
+		expect(cmp("2.2", "2.2")).to.equal(0);
 	});
 
 	it("should be return 1 when comparing 1.1 to 1.0", function() {
-		expect(moduleMM._test.cmpVersions("1.1", "1.0")).to.equal(1);
+		expect(cmp("1.1", "1.0")).to.equal(1);
 	});
 });
 
diff --git a/tests/unit/translations/same_keys.js b/tests/unit/translations/same_keys.js
deleted file mode 100644
index 9511a60f..00000000
--- a/tests/unit/translations/same_keys.js
+++ /dev/null
@@ -1,118 +0,0 @@
-var fs = require("fs");
-var path = require("path");
-var chai = require("chai");
-var expect = chai.expect;
-var mlog = require("mocha-logger");
-
-describe("Translations have the same keys as en.js", function() {
-	var translations = require("../../../translations/translations.js");
-	var base = JSON.parse(stripComments(fs.readFileSync("translations/en.json", "utf8")));
-	var baseKeys = Object.keys(base).sort();
-
-	Object.keys(translations).forEach(function(tr) {
-		var fileName = translations[tr];
-		var fileContent = stripComments(fs.readFileSync(fileName, "utf8"));
-		var fileTranslations = JSON.parse(fileContent);
-		var fileKeys = Object.keys(fileTranslations).sort();
-
-		it(fileName + " keys should be in base", function() {
-			fileKeys.forEach(function(key) {
-				expect( baseKeys.indexOf(key) ).to.be.at.least(0);
-			});
-		});
-
-		it(fileName + " should contain all base keys", function() {
-			var test = this;
-			baseKeys.forEach(function(key) {
-				// TODO: when all translations are fixed, use
-				// expect(fileKeys).to.deep.equal(baseKeys);
-				// instead of the try-catch-block
-
-				try {
-					expect(fileKeys).to.deep.equal(baseKeys);
-				} catch(e) {
-					if (e instanceof chai.AssertionError) {
-						diff = baseKeys.filter(function(x) { return fileKeys.indexOf(x) < 0 });
-						mlog.pending("Missing Translations for language " + tr + ": ", diff);
-						test.skip();
-					} else {
-						throw e;
-					}
-				}
-			});
-		});
-	});
-});
-
-// Copied from js/translator.js
-function stripComments(str, opts) {
-	// strip comments copied from: https://github.com/sindresorhus/strip-json-comments
-
-	var singleComment = 1;
-	var multiComment = 2;
-
-	function stripWithoutWhitespace() {
-		return "";
-	}
-
-	function stripWithWhitespace(str, start, end) {
-		return str.slice(start, end).replace(/\S/g, " ");
-	}
-
-	opts = opts || {};
-
-	var currentChar;
-	var nextChar;
-	var insideString = false;
-	var insideComment = false;
-	var offset = 0;
-	var ret = "";
-	var strip = opts.whitespace === false ? stripWithoutWhitespace : stripWithWhitespace;
-
-	for (var i = 0; i < str.length; i++) {
-		currentChar = str[i];
-		nextChar = str[i + 1];
-
-		if (!insideComment && currentChar === "\"") {
-			var escaped = str[i - 1] === "\\" && str[i - 2] !== "\\";
-			if (!escaped) {
-				insideString = !insideString;
-			}
-		}
-
-		if (insideString) {
-			continue;
-		}
-
-		if (!insideComment && currentChar + nextChar === "//") {
-			ret += str.slice(offset, i);
-			offset = i;
-			insideComment = singleComment;
-			i++;
-		} else if (insideComment === singleComment && currentChar + nextChar === "\r\n") {
-			i++;
-			insideComment = false;
-			ret += strip(str, offset, i);
-			offset = i;
-			continue;
-		} else if (insideComment === singleComment && currentChar === "\n") {
-			insideComment = false;
-			ret += strip(str, offset, i);
-			offset = i;
-		} else if (!insideComment && currentChar + nextChar === "/*") {
-			ret += str.slice(offset, i);
-			offset = i;
-			insideComment = multiComment;
-			i++;
-			continue;
-		} else if (insideComment === multiComment && currentChar + nextChar === "*/") {
-			i++;
-			insideComment = false;
-			ret += strip(str, offset, i + 1);
-			offset = i + 1;
-			continue;
-		}
-	}
-
-	return ret + (insideComment ? strip(str.substr(offset)) : str.substr(offset));
-}