add mocha env in eslint

.eslintrc.json

@@ -2,9 +2,13 @@
     "env": {
         "browser": true,
         "es6": true,
-        "node": true
+        "node": true,
+        "mocha": true
     },
     "extends": "eslint:recommended",
+    "plugins": [
+      "mocha"
+    ],
     "parserOptions": {
         "sourceType": "module"
     },

package.json

@@ -115,6 +115,7 @@
     "electron-builder": "^19.27.7",
     "electron-mocha": "^4.0.0",
     "electron-reload": "^1.1.0",
+    "eslint-plugin-mocha": "^4.11.0",
     "fs": "0.0.1-security",
     "gulp": "^3.9.1",
     "gulp-batch": "^1.0.5",

yarn.lock

@@ -1220,6 +1220,12 @@ escodegen@1.8.x:
   optionalDependencies:
     source-map "~0.2.0"
 
+eslint-plugin-mocha@^4.11.0:
+  version "4.11.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-mocha/-/eslint-plugin-mocha-4.11.0.tgz#91193a2f55e20a5e35974054a0089d30198ee578"
+  dependencies:
+    ramda "^0.24.1"
+
 eslint-scope@^3.7.1:
   version "3.7.1"
   resolved "https://registry.yarnpkg.com/eslint-scope/-/eslint-scope-3.7.1.tgz#3d63c3edfda02e06e01a452ad88caacc7cdcb6e8"
@@ -3459,6 +3465,10 @@ querystring@0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/querystring/-/querystring-0.2.0.tgz#b209849203bb25df820da756e747005878521620"
 
+ramda@^0.24.1:
+  version "0.24.1"
+  resolved "https://registry.yarnpkg.com/ramda/-/ramda-0.24.1.tgz#c3b7755197f35b8dc3502228262c4c91ddb6b857"
+
 randomatic@^1.1.3:
   version "1.1.7"
   resolved "https://registry.yarnpkg.com/randomatic/-/randomatic-1.1.7.tgz#c7abe9cc8b87c0baa876b19fde83fd464797e38c"