Update tests

Author: renovate-bot

package.json

@@ -26,7 +26,7 @@
   "devDependencies": {
     "chai": "4.2.0",
     "chai-as-promised": "7.1.1",
-    "coveralls": "3.0.4",
+    "coveralls": "3.0.5",
     "dependency-check": "3.4.1",
     "eslint": "5.16.0",
     "eslint-config-semistandard": "13.0.0",
@@ -37,7 +37,7 @@
     "eslint-plugin-standard": "4.0.0",
     "husky": "1.3.1",
     "installed-check": "2.2.0",
-    "mocha": "6.1.4",
+    "mocha": "6.2.0",
     "nyc": "13.3.0",
     "sinon": "7.3.2",
     "sinon-chai": "3.3.0"