在 grails test-app 中添加 -echoOut 开关，这是 1.2 版本中的新内容:

Add the -echoOut switch to grails test-app, this is new in the 1.2 release:

grails test-app -echoOut

test-app 上还有许多其他有用的开关，包括:

There are a number of other useful switches on test-app as well, including:

回显 System.err 消息:

echo System.err messages:

grails test-app -echoErr

在运行测试之前强制清理(不执行 grails clean && grails test-app):

force a clean before running tests (without doing grails clean && grails test-app):

grails test-app -clean

只运行单元测试:

grails test-app unit:

只运行集成测试:

grails test-app integration:

在特定环境中运行:

grails -Dgrails.env=production test-app

仅针对特定的测试类(如 com.foo.MyControllerTests)运行测试，一定要去掉测试"后缀:

run tests only for a particular test class (like com.foo.MyControllerTests), be sure to leave off the "Tests" suffix:

grails test-app com.foo.MyController

只重新运行上次运行测试失败的测试

rerun only the tests that failed the last time you ran your tests

grails test-app -rerun