ran npm run tdd

test/mapKeys/mapKeys.js

@@ -0,0 +1,5 @@
+module.exports = mapKeys = (obj, fn) =>
+Object.keys(obj).reduce((acc, k) => {
+acc[fn(obj[k], k, obj)] = obj[k];
+return acc;
+}, {});

test/mapKeys/mapKeys.test.js

@@ -0,0 +1,13 @@
+const test = require('tape');
+const mapKeys = require('./mapKeys.js');
+
+test('Testing mapKeys', (t) => {
+	//For more information on all the methods supported by tape
+	//Please go to https://github.com/substack/tape
+	t.true(typeof mapKeys === 'function', 'mapKeys is a Function');
+	//t.deepEqual(mapKeys(args..), 'Expected');
+	//t.equal(mapKeys(args..), 'Expected');
+	//t.false(mapKeys(args..), 'Expected');
+	//t.throws(mapKeys(args..), 'Expected');
+	t.end();
+});