@lacspace/spy
Spies, stubs, mocks and deterministic fake timers for any test runner or the browser — record calls, program returns/throws/resolves with once-queues, spyOn with call-through, and now argument matchers (any/objectContaining/…), richer call-inspection and resetAll. Zero-dependency, isomorphic.
npm i @lacspace/spyKeywords
More in Testing Kit
A fluent assertion library that runs anywhere — deep-equal, async resolves/rejects, toThrow, asymmetric matchers (any/objectContaining/…), expect.extend custom matchers, and 15 more built-ins (toBeOneOf/toBeWithin/toBeSorted/toIncludeSameMembers/type guards). Plugs into any runner or the browser. Zero-dependency, isomorphic.
@lacspace/fixturesTyped, deterministic test-data factories — define a factory once, then build realistic objects with sequences, traits, associations and transient params. Now with a seeded fake-data generator (names/emails/dates), async builds and cleanup hooks. Seed it and the same data comes out every run. Zero-dependency, isomorphic.
@lacspace/snapshotSnapshot testing without a framework — a stable, deterministic value serializer (sorted keys, circular-safe, pluggable) plus inline and file (.snap) matchers, now with property matchers, volatile-value redaction and obsolete-snapshot detection. Isomorphic core, with a node subpath for filesystem snapshots. Zero-dependency.