Migrated tests to jest

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

test/renameKeys/renameKeys.js

@@ -1,9 +0,0 @@
-const renameKeys = (keysMap, obj) =>
-Object.keys(obj).reduce(
-(acc, key) => ({
-...acc,
-...{ [keysMap[key] || key]: obj[key] }
-}),
-{}
-);
-module.exports = renameKeys;