Adds wallaby.js config file.

Author: ctrlplusb

wallaby.js

@@ -0,0 +1,20 @@
+const fs = require('fs')
+const path = require('path')
+
+process.env.NODE_ENV = 'test'
+
+const babelConfigContents = fs.readFileSync(path.join(__dirname, '.babelrc'))
+const babelConfig = JSON.parse(babelConfigContents)
+
+module.exports = wallaby => ({
+  files: ['src/**/*.js', { pattern: 'src/**/*.test.js', ignore: true }],
+  tests: ['src/**/*.test.js'],
+  testFramework: 'jest',
+  env: {
+    type: 'node',
+    runner: 'node',
+  },
+  compilers: {
+    'src/**/*.js': wallaby.compilers.babel(babelConfig),
+  },
+})