tests: add and follow eslint rules (#12)

.eslintrc

@@ -0,0 +1,52 @@
+{
+  "extends" : [
+    "standard",
+    "plugin:promise/recommended",
+    "plugin:react/recommended"
+  ],
+  "plugins": [
+    "promise"
+  ],
+  "env": {
+    "browser" : true,
+    "node"    : true,
+    "mocha"   : true,
+    "jest"    : true
+  },
+  "globals" : {
+    "artifacts": false,
+    "contract": false,
+    "assert": false,
+    "web3": false
+  },
+  "rules": {
+
+    // Strict mode
+    "strict": [2, "global"],
+
+    // Code style
+    "indent": [2, 2],
+    "quotes": [2, "single"],
+    "semi": ["error", "always"],
+    "space-before-function-paren": ["error", "always"],
+    "no-use-before-define": 0,
+    "eqeqeq": [2, "smart"],
+    "dot-notation": [2, {"allowKeywords": true, "allowPattern": ""}],
+    "no-redeclare": [2, {"builtinGlobals": true}],
+    "no-trailing-spaces": [2, { "skipBlankLines": true }],
+    "eol-last": 1,
+    "comma-spacing": [2, {"before": false, "after": true}],
+    "camelcase": [2, {"properties": "always"}],
+    "no-mixed-spaces-and-tabs": [2, "smart-tabs"],
+    "comma-dangle": [1, "always-multiline"],
+    "no-dupe-args": 2,
+    "no-dupe-keys": 2,
+    "no-debugger": 0,
+    "no-undef": 2,
+    "object-curly-spacing": [2, "always"],
+    "max-len": [2, 120, 2],
+    "generator-star-spacing": ["error", "before"],
+    "promise/avoid-new": 0,
+    "promise/always-return": 0
+  }
+}

package.json

@@ -26,6 +26,11 @@
     "chai-bignumber": "^2.0.2",
     "enzyme": "^3.3.0",
     "enzyme-adapter-react-16": "^1.1.1",
+    "eslint-config-standard": "^11.0.0",
+    "eslint-plugin-import": "^2.11.0",
+    "eslint-plugin-node": "^6.0.1",
+    "eslint-plugin-promise": "^3.7.0",
+    "eslint-plugin-standard": "^3.0.1",
     "jsdom": "^11.7.0",
     "mocha": "^5.0.5",
     "redux-test-utils": "^0.2.2",
@@ -40,6 +45,9 @@
     "test:react": "mocha test/react --require babel-core/register --require test/react/setup.js",
     "eject": "react-scripts eject",
     "lint:sol": "solium -d contracts",
-    "lint:sol:fix": "solium -d contracts --fix"
+    "lint:sol:fix": "solium -d contracts --fix",
+    "lint:js": "eslint .",
+    "lint:js:fix": "eslint . --fix",
+    "lint": "npm run lint:sol && npm run lint:js"
   }
 }

src/components/Alert.react.js

@@ -1,6 +1,6 @@
-import React from 'react'
-import { connect } from 'react-redux'
-import AlertActions from '../actions/alerts'
+import React from 'react';
+import { connect } from 'react-redux';
+import AlertActions from '../actions/alerts';
 
 class Alert extends React.Component {
 
@@ -10,7 +10,7 @@ class Alert extends React.Component {
       <div>
         <p>{alert.message} <span onClick={this._cleanAlert}>x</span>
         </p>
-      </div>
+      </div>;
   }
 
   _cleanAlert(e) {
@@ -20,10 +20,10 @@ class Alert extends React.Component {
 }
 
 function mapStateToProps({ alert }) {
-  return { alert }
+  return { alert };
 }
 
 export default connect(
   mapStateToProps,
   AlertActions
-)(Alert)
+)(Alert);