tiny test framework for a little act of test

TestTinyTest.java

package jp.kontrapunkt.kunst1080.TinyTest;

import java.util.Calendar;
import java.util.Date;

public class TestTinyTest extends TinyTest {

	public static void main(String[] args) {
		testStart(new OKTest());
		//testStart(new NoTest());
		testStart(new NGTest());

		setOutFile("C:/temp/TestTinyTest.log");
		testStart(new FileTest());
	}

	static class OKTest implements Tester {
		public boolean testMain() {
			p(new Date());
			p(Calendar.getInstance());
			p("fugafuga");
			return true;
		}
	}

	static class NoTest implements Tester {
		public boolean testMain() {
			return true;
		}
	}

	static class NGTest implements Tester {
		public boolean testMain() {
			p("1 == 2");
			return 1 == 2;
		}
	}

	static class FileTest implements Tester {
		public boolean testMain() {
			p("1 == 2");
			return 1 == 2;
		}
	}
}

TinyTest.java

package jp.kontrapunkt.kunst1080.TinyTest;

import java.io.PrintStream;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.List;

public abstract class TinyTest {
  // Framework
  public interface Tester{
		boolean testMain();
	}
	public static void testStart(Tester t){
		p("[ClassName = " + t.getClass().getName() + "]");
		p("---------- Test Start ----------");
		if (t.testMain()){
			p("---------- Test OK End ----------");
		} else {
			p("---------- Test Abnormal End ----------");
		}
		p("");
	}

	// Utilitiy functions
	public static void p(Object o){
		if(o instanceof Calendar){
			SimpleDateFormat df = new SimpleDateFormat("yyyyMMdd-HHmmSS");
			Calendar cal = (Calendar)o;
			System.out.println(df.format(cal.getTime()));
		} else if (o instanceof List){
			List<Object> list = autoCast(o);
			for (Object obj : list){
				p(obj);
			}
		} else {
			System.out.println(o.toString());
		}
	}
	public static void line(){
		p("------------------------------");
	}
	public static String getThisClassName(){
		StackTraceElement[] st = new Throwable().getStackTrace();
		String s = st[st.length - 1].getClassName();
		return s;
	}
	@SuppressWarnings("unchecked")
	public static <T> T autoCast(Object o){
		return (T)o;
	}

	/**
	 * Switch stdout for file
	 * @param filepath
	 */
	public static void setOutFile(String filepath){
		try{
			PrintStream out = new PrintStream(filepath);
			System.setOut(out);
		} catch (Exception e){
			e.printStackTrace();
		}
	}
}