Migrated tests to jest

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

test3/initializeNDArray/initializeNDArray.js

@@ -0,0 +1,5 @@
+const initializeNDArray = (val, ...args) =>
+args.length === 0
+? val
+: Array.from({ length: args[0] }).map(() => initializeNDArray(val, ...args.slice(1)));
+module.exports = initializeNDArray;

test3/initializeNDArray/initializeNDArray.test.js

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