Module test_support 

Test helpers for asserting store/reducer paths do not clone feature state.

Wrap reducer state types with [panic_on_state_clone!] and allow only explicit clones via allow_state_clones.

Functions

allow_state_clones

Temporarily allow count feature-state clones on this thread.

on_state_clone

Panics unless the current thread has remaining clone budget from allow_state_clones.

replay_snapshot

[ReplayHarness::snapshot] clones feature state once.

scoped_child_state

[ScopedStore::child_state] clones parent state once via [Store::state].

scoped_subscribe_state

[ScopedStore::subscribe_state] clones parent state once when the subscriber is created.

scoped_subscriber_next

One ScopedStateSubscriber::next may clone parent feature state once.

shared_get

[Shared::get] clones feature state once.

shared_with_mut

[Shared::with_mut] clones feature state once to detect changes.

store_state

[Store::state] clones feature state once — use in tests that intentionally read a snapshot.

subscribe_state

[Store::subscribe_state] clones once when the subscriber is created.

subscriber_wait_next

One StateSubscriber::next / StateSubscriber::wait_next may clone feature state once.