Locate all the groovy scripts in a certain package within the classpath, and execute them as a JUnit 4.x test suite

GroovySystemTest.java

@RunWith(Parameterized.class)
public class GroovySystemTest {

  @Parameters(name = "{0}")
  public static Collection<Object[]> data() throws Exception {
    Collection<Object[]> data = new ArrayList<Object[]>();

    ClassPathScanningCandidateComponentProvider provider = new ClassPathScanningCandidateComponentProvider(true);
    provider.addIncludeFilter(new AssignableTypeFilter(Script.class));

    Set<BeanDefinition> components = provider.findCandidateComponents("package.of.interest");
    LOG.debug("set size=" + components.size());
    for (BeanDefinition component : components) {
      @SuppressWarnings("unchecked")
      Class<Script> cls = (Class<Script>) Class.forName(component.getBeanClassName());
      Script script = cls.newInstance();
      script.setBinding(new Binding(new String[0]));
      data.add(new Object[] { script });
    }

    LOG.debug("data size=" + data.size());
    return data;
  }
  
  @Test
  public void test() {
    final String name = script.getClass().getName();
    LOG.info("Running {}", name);
    script.run();
  }
}