有没有办法判断是否正在从Ant运行JUnit测试？

Question

I want to recognize at runtime whether my JUnit tests are being run from ant or not. The reason for this is, if it's being run from ant , I want to log information to a log file, else I just want to write to standard out.

Answer 1

Ant's built in JUnit Task has a showoutput attribute which will send any output produced from the tests to ant's logging system.

See also this SO question ant junit task does not report detail about reporting options.

Answer 2

One way to accomplish this would be to include a property in the junit task in the Ant script:

<junit fork="yes">
  <jvmarg value="-Druntime.agent=ANT"/>
  ...
</junit>

Then, in your JUnit test harness inquire about the existence and/or property for that property:

String agent = System.getProperty("runtime.agent");
if ("ANT".equals(agent)) {
    // set up file logging
} else {
    // set up STDOUT logging
}