Migrated tests to jest

Used jest-codemods to migrate, will have to pass everything by hand before we can merge.

test6/zipWith/zipWith.js

@@ -0,0 +1,8 @@
+const zipWith = (...array) => {
+const fn = typeof array[array.length - 1] === 'function' ? array.pop() : undefined;
+return Array.from(
+{ length: Math.max(...array.map(a => a.length)) },
+(_, i) => (fn ? fn(...array.map(a => a[i])) : array.map(a => a[i]))
+);
+};
+module.exports = zipWith;

test6/zipWith/zipWith.test.js

@@ -0,0 +1,8 @@
+const expect = require('expect');
+const zipWith = require('./zipWith.js');
+
+test('Testing zipWith', () => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  expect(typeof zipWith === 'function').toBeTruthy();
+});