Migrated tests to jest

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

test5/permutations/permutations.test.js

@@ -0,0 +1,11 @@
+const expect = require('expect');
+const permutations = require('./permutations.js');
+
+test('Testing permutations', () => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  expect(typeof permutations === 'function').toBeTruthy();
+  expect(permutations([1, 33, 5])).toEqual(
+    [ [ 1, 33, 5 ], [ 1, 5, 33 ], [ 33, 1, 5 ], [ 33, 5, 1 ], [ 5, 1, 33 ], [ 5, 33, 1 ] ]
+  );
+});