testing

AWS released AWS Emulator on November 11, a local emulator of AWS APIs that AWS says agents wrote entirely; its docs list IAM, Region and fidelity limits.

Gradle 9.9.0 compiles Kotlin DSL scripts incrementally (Gradle reports 65% faster recompiles in one test), applies test filters to non-method JUnit tests, and changes Problems API IDs.

Playwright 1.65.0 says its test runner now runs under Bun with listed limitations, adds a failures reporter and an exclusive test lock, and stops testing on Node.js 20.

Vitest 5.1.0-beta.1, a prerelease published October 19, adds CLI flags to rerun failed tests or tests affected since the last run, plus Temporal support in vi.setSystemTime().

JUnit 6.1.0, released May 19, absorbs JUnit Pioneer's locale, timezone, and system-property extensions into core while replacing ForkJoinPool with a simpler thread pool for parallel test execution.

VoidZero's Vitest 4.1 adds pytest-style test tags, an experimental mode to bypass Vite's module runner, async leak detection, and a reporter optimized for AI coding agents.