Migrated tests to jest

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

test6/sumPower/sumPower.test.js

@@ -0,0 +1,11 @@
+const expect = require('expect');
+const sumPower = require('./sumPower.js');
+
+test('Testing sumPower', () => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  expect(typeof sumPower === 'function').toBeTruthy();
+  expect(sumPower(10)).toBe(385);
+  expect(sumPower(10, 3)).toBe(3025);
+  expect(sumPower(10, 3, 5)).toBe(2925);
+});