监视模式

【Watch mode】

Node.js 测试运行器支持通过传递 --watch 标志来以观察模式运行：

【The Node.js test runner supports running in watch mode by passing the --watch flag:】

node --test --watch 拷贝

在观察模式下，测试运行器会监视测试文件及其依赖的更改。当检测到更改时，测试运行器会重新运行受更改影响的测试。测试运行器会持续运行，直到进程被终止。

【In watch mode, the test runner will watch for changes to test files and their dependencies. When a change is detected, the test runner will rerun the tests affected by the change. The test runner will continue to run until the process is terminated.】