testsimplesingleton.java

来自「著名的uncle Bob的Agile software development的」· Java 代码 · 共 25 行

import junit.framework.*;
import java.lang.reflect.Constructor;

public class TestSimpleSingleton extends TestCase
{
	public TestSimpleSingleton(String name)
	{
		super(name);
	}
	
	public void testCreateSingleton()
	{
		Singleton s = Singleton.Instance();
		Singleton s2 = Singleton.Instance();
		assertSame(s, s2);
	}
	
	public void testNoPublicConstructors() throws Exception
	{
		Class singleton = Class.forName("Singleton");
		Constructor[] constructors = singleton.getConstructors();
		assertEquals("Singleton has public constructors.", 0, constructors.length);
	}
}