Migrated tests to jest

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

test2/formatDuration/formatDuration.js

@@ -0,0 +1,15 @@
+const formatDuration = ms => {
+if (ms < 0) ms = -ms;
+const time = {
+day: Math.floor(ms / 86400000),
+hour: Math.floor(ms / 3600000) % 24,
+minute: Math.floor(ms / 60000) % 60,
+second: Math.floor(ms / 1000) % 60,
+millisecond: Math.floor(ms) % 1000
+};
+return Object.entries(time)
+.filter(val => val[1] !== 0)
+.map(val => val[1] + ' ' + (val[1] !== 1 ? val[0] + 's' : val[0]))
+.join(', ');
+};
+module.exports = formatDuration;

test2/formatDuration/formatDuration.test.js

@@ -0,0 +1,10 @@
+const expect = require('expect');
+const formatDuration = require('./formatDuration.js');
+
+test('Testing formatDuration', () => {
+  //For more information on all the methods supported by tape
+  //Please go to https://github.com/substack/tape
+  expect(typeof formatDuration === 'function').toBeTruthy();
+  expect(formatDuration(1001)).toBe('1 second, 1 millisecond');
+  expect(formatDuration(34325055574)).toBe('397 days, 6 hours, 44 minutes, 15 seconds, 574 milliseconds');
+});