Testing adapters

Test-framework adapters detect runners (Jest, Vitest, Mocha, pytest, unittest, cargo test / Criterion, Go testing, JUnit, Kotest, NUnit, XCTest, Dart test, RSpec, PHPUnit, …).

Build-system adapters also cover pnpm, Yarn, Bun, uv, Poetry, CMake, and Meson (manifest/lockfile detection).

Assertion IR (direction)

Future emission uses language-independent AssertionIR (Equal, Throws, Snapshot, …). Vitest/Jest → cargo test is the Tier-1 path used by weather-api.

Mocking

jest.mock, unittest.mock, Mockito, etc. often require manual review when no safe equivalent exists — Atlas reports maturity honestly rather than inventing mocks.