yurandom

Deterministic seed-based random generator using Xoroshiro128+. Useful for avatars, testing, procedural content, and more.

v1.0.0 URL: https://unpkg.com/yurandom@1.0.0/dist/index.js

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random prng seed seeded deterministic xoroshiro uuid rng avatar shuffle testing mock procedural data generation

memfs

In-memory file-system with Node's fs API.

v4.36.0 URL: https://unpkg.com/memfs@4.36.0/lib/index.js

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fs filesystem fs.js memory-fs memfs file file system mount memory in-memory virtual test testing mock fsa file system access native file system webfs crudfs opfs casfs content addressable storage

responselike

A response-like object for mocking a Node.js HTTP response stream

v3.0.0 URL: https://unpkg.com/responselike@3.0.0/index.js

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http https response mock test request responselike

tinyspy

A minimal fork of nanospy, with more features

v4.0.3 URL: https://unpkg.com/tinyspy@4.0.3/dist/index.js

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spy mock typescript method

sinon

JavaScript test spies, stubs and mocks.

v21.0.0 URL: https://unpkg.com/sinon@21.0.0/lib/sinon.js

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sinon test testing unit stub spy fake time clock mock xhr assert