import org.junit.internal.runners.SuiteMethod; //导入依赖的package包/类
@Override
public Runner runnerForClass(Class<?> each) throws Throwable {
    if (hasSuiteMethod(each)) {
        return new SuiteMethod(each);
    }
    return null;
}
 

import org.junit.internal.runners.SuiteMethod; //导入依赖的package包/类
private static Predicate<Description> isSuiteMethodRunner(final Runner runner) {
  return new Predicate<Description>() {
    @Override
    public Boolean apply(final Description a) {
      return SuiteMethod.class.isAssignableFrom(runner.getClass());
    }

  };
}
 

import org.junit.internal.runners.SuiteMethod; //导入依赖的package包/类
private static boolean isSuite(Object child) {
  return child instanceof Suite && !(child instanceof Parameterized) || child instanceof SuiteMethod;
}
 

import org.junit.internal.runners.SuiteMethod; //导入依赖的package包/类
private static boolean isSuite(Object child) {
  return child instanceof Suite || child instanceof SuiteMethod;
}