hemx/work/slices/SLICE-0003-keyed-regression-boundaries.md

id, type, status, parent, title, refs

id	type	status	parent	title	refs
SLICE-0003	slice	done	NS-0001	Protect keyed collection regressions with generated-resource assertions	REQUIREMENTS.md examples/html_examples/src/main.rs hemx-test/src/lib.rs

Objective

Make keyed list regressions easy to catch without raw selector or raw effect coupling: tests should assert generated resource behavior for remove, replace, and append paths.

Authority

REQUIREMENTS.md list/006, test/008, test/009, test/010, and test/017 constrain keyed collection behavior and test diagnostics.

Close when

• Filtered keyed collections are tested for removing filtered-out keys, replacing retained keys, and appending newly visible keys.
• Assertions use generated resource helpers or hemx_test inspection adapters, not raw runtime ids as app-facing API.
• Failure messages name generated resources where practical.

Verification

• cargo test -p hemx-html-examples
• cargo test -p hemx-test --test inspector
• cargo run -p hemx-xtask -- html-examples-smoke

Non-goals

• Do not add app authoring APIs for selectors or raw runtime ids.
• Do not test private runtime payload layout unless the slice changes wire semantics.

Evidence

Done at HEAD 2122b3c: cargo test -p hemx-html-examples covers active-search keyed remove/replace/append behavior through generated gallery::search_result assertions, cargo test -p hemx-test --test inspector covers rendered target/handle helper diagnostics with generated names, and cargo run -p hemx-xtask -- html-examples-smoke covers the browser active-search path. No app-facing selector/raw-id API was added.