Unordered collections

[ligurio]

Unordered collections: Tests can be flaky when they make assumptions about the order of elements in an unordered collection. If your test is working with a set or a JSON object, don’t make any assumptions about the order, simply check for existence of elements in the collection.

Source: https://mir.cs.illinois.edu/lamyaa/publications/fse14.pdf
See LuaJIT/LuaJIT#719

• C https://en.cppreference.com/w/cpp/container/unordered_map
• Go: reflect.DeepEqual(a, b)
• Modifying mutable default datastructures in Python semgrep/semgrep-rules#211