Jest 18.1.0 发布了，Jest 是 Facebook 开源的无痛 JavaScript 测试工具。Jest 默认使用 Jasmine assertions，模块化，可扩展、可配置。Jest 也可以捕获 React 或其他可序列化值的快照，以便快速编写测试，并提供无缝的更新体验。
更新内容：
Fixed console.log and fake timer behavior in node 7.3
Updated istanbul-api
Updated jest-diff equality error message
Disabled arrow keys when entering a pattern in watch mode to prevent broken behavior。Will be improved in a future release。
Moved asymmetric matchers and equality functionality from Jasmine into jest-matchers
Removed jasmine and jest-snapshot dependency from jest-matchers
Removed unused global context variable
Show a better error message if the config is invalid JSON
Highlight trailing whitespace in assertion diffs and snapshots
Jest now uses micromatch instead of minimatch
Added -h as alias for --help
下载地址：https://github.com/facebook/jest/archive/v18.1.0.zip
来自:开源中国社区
