Migrated tests to jest

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

test/parseCookie/parseCookie.js

@@ -1,9 +0,0 @@
-const parseCookie = str =>
-str
-.split(';')
-.map(v => v.split('='))
-.reduce((acc, v) => {
-acc[decodeURIComponent(v[0].trim())] = decodeURIComponent(v[1].trim());
-return acc;
-}, {});
-module.exports = parseCookie;