chore: add wallaby config

.eslintignore

@@ -2,3 +2,4 @@ node_modules
 coverage
 dist
 app/templates/wallaby.config.js
+wallaby.config.js

wallaby.config.js

@@ -0,0 +1,31 @@
+process.env.BABEL_ENV = 'test';
+
+const path = require('path');
+
+module.exports = function(wallaby) {
+  return {
+    files: [
+      'src/**/*.js',
+      '**/*.json',
+      '**/*.snap',
+      'package.json',
+      '!**/__tests__/*.js',
+      '!**/*.test.js',
+    ],
+    tests: ['**/__tests__/*.js', '**/*.test.js', '!**/node_modules/**'],
+    env: {
+      type: 'node',
+      runner: 'node',
+    },
+
+    compilers: {
+      '**/*.js': wallaby.compilers.babel(),
+    },
+
+    testFramework: 'jest',
+
+    setup: wallaby => {
+      wallaby.testFramework.configure(require('./package.json').jest);
+    },
+  };
+};