Add tests and travis config (#5)

* Add tests and travis config

* Don't use yarn since arguments aren't forwarded

* v2.2.1

.travis.yml

@@ -0,0 +1,5 @@
+language: node_js
+node_js:
+  - '8'
+notifications:
+  email: false

package.json

@@ -1,9 +1,12 @@
 {
   "name": "@launchpadlab/eslint-config",
-  "version": "2.2.0",
+  "version": "2.2.1",
   "main": "index.js",
   "license": "MIT",
   "author": "dpikt",
+  "scripts": {
+    "test": "jest"
+  },
   "dependencies": {
     "babel-eslint": "^8.0.2",
     "eslint-import-resolver-webpack": "^0.8.3",
@@ -13,6 +16,7 @@
   },
   "devDependencies": {
     "eslint": "^4.10.0",
+    "jest": "^21.2.1",
     "webpack": "^3.8.1"
   },
   "peerDependencies": {

test/all-configs.test.js

@@ -0,0 +1,14 @@
+const config = require('../react-rails')
+const execSync = require('child_process').execSync
+
+// Basic sanity checks to make sure there are no syntax errors in the configs
+
+function runConfig (config) {
+  execSync(`node_modules/.bin/eslint --config ${ config }.js test/test-input.js`, { stdio: 'inherit' })
+}
+
+test('index', () => runConfig('index'))
+test('base', () => runConfig('base'))
+test('es6', () => runConfig('es6'))
+test('react', () => runConfig('react'))
+test('react-rails', () => runConfig('react-rails'))

test/test-input.js

@@ -0,0 +1,4 @@
+function testInput () {
+  var thisFile = 'doesnt do anything'
+  return 'its just an input for the tests!'
+}