buildfile

VERSION_NUMBER = "1.0.0"
GROUP = "buildr-junit"

repositories.remote << "http://www.ibiblio.org/maven2/"

define "buildr-junit" do
  project.version = VERSION_NUMBER
  project.group = GROUP
  #test.using :junit
  package(:jar)
end

Foo.java

public class Foo {
  int foo = 1;
}

FooTest.java

import static org.junit.Assert.*;

public class FooTest {

    @org.junit.Test
    public void testFoo() {
        assertEquals(new Foo().foo, 1);
    }

}