Catalogue tag

#assertion

Every repository in the public record carrying this tag — from its GitHub topics or the keywords its package registries publish. Health is measured under the same versioned methodology as the rest of the record.

15 records

Tagged “assertion”Ranked by health index

npm

98Exceptionalhealth index

vitest-dev/vitest

Next generation testing framework powered by Vite.

TypeScript★ 17K↓ 2.6B/moAug 27, 2026

MITAug 27, 2026 · metrics 2.10.0

npm

96Exceptionalhealth index

☕️ Classic, reliable, trusted test framework for Node.js and the browser

JavaScript★ 22.9K↓ 58.9M/moAug 4, 2026

MITAug 4, 2026 · metrics 2.10.0

npm

94Exceptionalhealth index

BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.

JavaScript★ 8,266↓ 405M/moAug 4, 2026

MITAug 4, 2026 · metrics 2.10.0

NuGet

88Excellenthealth index

shouldly/shouldly

Should testing for .NET—the way assertions should be!

C#★ 3,406Aug 22, 2026

Custom licenseAug 22, 2026 · metrics 2.10.0

crates.io

84Excellenthealth index

sebastienrousseau/rlg

Near-lock-free structured logging for Rust. 10-crate workspace: MCP server (Claude/Cursor/mcp.run), OTLP HTTP+gRPC exporter, Tower middleware, WASM + WASI 0.2 component, eBPF-style enrichers, PII redaction, log analytics, test utilities, and a jq-style CLI. Sub-µs ingest via a 65k-slot ring buffer (LMAX Disruptor).

Rust★ 4↓ 4,153/moAug 29, 2026

Apache-2.0Aug 29, 2026 · metrics 2.10.0

npm

75Goodhealth index

arlac77/browser-ava

run ava test in the browser

JavaScript★ 1↓ 3,914/moAug 22, 2026

0BSDAug 22, 2026 · metrics 2.10.0

npm

73Goodhealth index

sindresorhus/is

Type check values

TypeScript★ 1,790↓ 210M/moAug 4, 2026

MITAug 4, 2026 · metrics 2.10.0

PyPI

69Goodhealth index

Solganis/assertpy2

Fluent, fully-typed assertion library for Python: type-narrowing assertions, contract testing, composable matchers, and structural matching.

Python★ 4↓ 6,017/moJul 19, 2026

BSD-3-ClauseJul 19, 2026 · metrics 2.10.0

npm

62Moderatehealth index

KensioSoftware/smartass

TypeScript-first test assertion functions with precise type narrowing via assertion signatures.

TypeScript★ 2↓ 3,331/moJul 20, 2026

Apache-2.0Jul 20, 2026 · metrics 2.10.0

Packagist

62Moderatehealth index

beberlei/assert

Thin assertion library for use in libraries and business-model

PHP★ 2,432↓ 2M/moAug 27, 2026

Custom licenseAug 27, 2026 · metrics 2.10.0

NuGet

51Moderatehealth index

lateapexearlyspeed/Lateapexearlyspeed.JsonSchema

Simple and high performance json schema implementation for .Net and related json validation in .Net, Nullability info reader even if generic type

C#★ 94Jul 22, 2026

BSD-3-ClauseJul 22, 2026 · metrics 2.10.0

npm

50Moderatehealth index

chaijs/assertion-error

Error constructor for test and validation frameworks that implements standardized AssertionError specification.

TypeScript★ 26↓ 325M/moAug 4, 2026

MITAug 4, 2026 · metrics 2.10.0

npm

45Weakhealth index

jcoreio/chai-wait-for

poll until an assertion succeeds

TypeScript · JavaScript★ 3↓ 13.8K/moSep 5, 2026

MITSep 5, 2026 · metrics 2.10.0

PyPI

41Weakhealth index

assertpy/assertpy

Simple assertion library for unit testing in python with a fluent API

Python★ 529↓ 830.5K/moJul 21, 2026

BSD-3-ClauseJul 21, 2026 · metrics 2.10.0

npm

27At Riskhealth index

alexreardon/tiny-invariant

A tiny invariant function

TypeScript · JavaScript★ 1,864↓ 332M/moAug 13, 2026

MITAug 13, 2026 · metrics 2.10.0