JUnit + Maven: accessing ${project.build.directory} value

Question

In my unit tests I want to create a tmp directory inside the ${project.build.directory}. How can I access the value of ${project.build.directory} inside my unit test?

One way, which I could think of, is to provide a filtered properties file in the test resources, which holdes that value. (I haven't tried yet, but I think that should work.)

Is there a direct way to access/ pass this property value?

Answer 1

I've used something like this with some success before. The unit test will still run even if not using Maven, the target directory will still get created two dirs up relative to the cwd of wherever the tests are run.

public File targetDir(){   String relPath = getClass().getProtectionDomain().getCodeSource().getLocation().getFile();   File targetDir = new File(relPath+"../../target");   if(!targetDir.exists()) {     targetDir.mkdir();   }   return targetDir; }