Migrated tests to jest

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

test3/hashBrowser/hashBrowser.js

@@ -0,0 +1,9 @@
+const hashBrowser = val =>
+crypto.subtle.digest('SHA-256', new TextEncoder('utf-8').encode(val)).then(h => {
+let hexes = [],
+view = new DataView(h);
+for (let i = 0; i < view.byteLength; i += 4)
+hexes.push(('00000000' + view.getUint32(i).toString(16)).slice(-8));
+return hexes.join('');
+});
+module.exports = hashBrowser;

test3/hashBrowser/hashBrowser.test.js

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