Migrated tests to jest

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

test/initializeArrayWithRange/initializeArrayWithRange.js

@@ -1,3 +0,0 @@
-const initializeArrayWithRange = (end, start = 0, step = 1) =>
-Array.from({ length: Math.ceil((end + 1 - start) / step) }).map((v, i) => i * step + start);
-module.exports = initializeArrayWithRange;