videoformattest.java

FMJ（freedom media for java)是java视频开发的新选择

package net.sf.fmj.test.compat.formats;

import java.awt.Dimension;

import javax.media.Format;
import javax.media.format.VideoFormat;

import junit.framework.TestCase;

/**
 * 
 * @author Ken Larson
 *
 */
public class VideoFormatTest extends TestCase
{

	public void testConstructors()
	{
		{
			final VideoFormat f = new VideoFormat("abc");
			assertEquals(f.getEncoding(), "abc");
			assertEquals(f.getDataType(), byte[].class);
			assertEquals(f.getFrameRate(), -1.f);
			assertEquals(f.getMaxDataLength(), -1L);
			assertEquals(f.getSize(), null);
		}
		
		{
			final VideoFormat f = new VideoFormat("abc", new Dimension(100, 200), 2000, int[].class, 2.f);
			assertEquals(f.getEncoding(), "abc");
			assertEquals(f.getDataType(), int[].class);
			assertEquals(f.getFrameRate(), 2.f);
			assertEquals(f.getMaxDataLength(), 2000);
			assertEquals(f.getSize(), new Dimension(100, 200));
		}
	}
	
	public void testFieldDuplication()
	{
		{
			final Dimension d = new Dimension(100, 200);
			final VideoFormat f1 = new VideoFormat("abc", d, 2000, int[].class, 2.f);
			final VideoFormat f2 = (VideoFormat) f1.clone();
			
			assertTrue(f1.getSize().equals(d));
			assertTrue(f1.getSize() != d);
			assertTrue(f1.getSize() != f2.getSize());
			assertTrue(f1.getSize().equals(f2.getSize()));
			
		}
		
		{
			final VideoFormat f1 = new VideoFormat("abc", new Dimension(100, 200), 2000, int[].class, 2.f);
			final VideoFormat f2 = (VideoFormat) f1.relax();
			
			assertTrue(f1.getSize() != f2.getSize());
			assertTrue(f2.getSize() == null);
			
		}
		
		{
			final VideoFormat f1 = new VideoFormat("abc", new Dimension(100, 200), 2000, int[].class, 2.f);
			final VideoFormat f2 = (VideoFormat) f1.intersects(f1);
			
			assertTrue(f1.getSize() == f2.getSize());
			assertTrue(f1.getSize().equals(f2.getSize()));
			
		}
		
		{
			final VideoFormat f1 = new VideoFormat("abc", new Dimension(100, 200), 2000, int[].class, 2.f);
			final VideoFormat f2 = new VideoFormat("abc", new Dimension(100, 201), 2000, int[].class, 2.f);
			final VideoFormat f3 = (VideoFormat) f1.intersects(f2);
			
			assertTrue(f1.getSize() == f3.getSize());
			assertTrue(f1.getSize().equals(f3.getSize()));
			
		}

		{
			final VideoFormat f1 = new VideoFormat("abc", null, 2000, int[].class, 2.f);
			final VideoFormat f2 = new VideoFormat("abc", new Dimension(100, 201), 2000, int[].class, 2.f);
			final VideoFormat f3 = (VideoFormat) f1.intersects(f2);
			
			assertTrue(f3.getSize() == f2.getSize());
			
		}
		
		{
			final Format f1 = new Format("abc");
			final VideoFormat f2 = new VideoFormat("abc", new Dimension(100, 201), 2000, int[].class, 2.f);
			final VideoFormat f3 = (VideoFormat) f1.intersects(f2);
			final VideoFormat f4 = (VideoFormat) f2.intersects(f1);
			
			assertTrue(f3.getSize() != f2.getSize());
			assertTrue(f4.getSize() != f2.getSize());
			
		}
		
		
		{
			final Dimension d = new Dimension(100, 200);
			final MyVideoFormat f1 = new MyVideoFormat("abc", d, 2000, int[].class, 2.f);
			final MyVideoFormat f2 = new MyVideoFormat("xyz");
			f2.doCopy(f1);
			assertTrue(f2.getSize() != f1.getSize());
			assertEquals(f2.getSize(), f1.getSize());
		}
	}
	
	public void testCloneClass()
	{
		{
			final Dimension d = new Dimension(100, 200);
			final MyVideoFormat f1 = new MyVideoFormat("abc", d, 2000, int[].class, 2.f);
			final Format f2 = (Format) f1.clone();
			assertEquals(f2.getClass(), VideoFormat.class);	// does not construct clone using reflection
			
		}
		
		{
			final Dimension d = new Dimension(100, 200);
			final MyVideoFormat f1 = new MyVideoFormat("abc", d, 2000, int[].class, 2.f);
			final Format f2 = (Format) f1.clone();
			assertEquals(f2.getClass(), VideoFormat.class);	// does not construct clone using reflection
			
			
		}
		
		{
			final Dimension d = new Dimension(100, 200);
			final MyVideoFormat f1 = new MyVideoFormat("abc", d, 2000, int[].class, 2.f);
			final Format f2 = (Format) f1.intersects(f1);
			assertEquals(f2.getClass(), VideoFormat.class);	// does not construct intersects clone using reflection
			
		}
		
		{
			final Dimension d = new Dimension(100, 200);
			final MyVideoFormat f1 = new MyVideoFormat("abc", d, 2000, int[].class, 2.f);
			final Format f2 = (Format) f1.relax();	
			assertEquals(f1.getStringBuffer().toString(), "clone\n");	// make sure relax calls clone
			
			assertEquals(f2.getClass(), VideoFormat.class);	// does not construct clone using reflection
			
			
		}
		
		{
			final Dimension d = new Dimension(100, 200);
			final MyVideoFormat f1 = new MyVideoFormat("abc", d, 2000, int[].class, 2.f);
			final Format f2 = (Format) f1.intersects(f1);	
			assertEquals(f1.getStringBuffer().toString(), "clone\n");	// make sure intersects calls clone
			
			assertEquals(f2.getClass(), VideoFormat.class);	// does not construct clone using reflection
			
			
		}
		
		{
			final Dimension d = new Dimension(100, 200);
			final MyVideoFormat f1 = new MyVideoFormat("abc", d, 2000, int[].class, 2.f);
			final Format f2 = (Format) f1.intersects(new Format("xyz"));	
			assertEquals(f1.getStringBuffer().toString(), "clone\n");	// make sure intersects calls clone
			
			assertEquals(f2.getClass(), VideoFormat.class);	// does not construct clone using reflection
			
			
		}
		
		{
			final Dimension d = new Dimension(100, 200);
			final MyVideoFormat f1 = new MyVideoFormat("abc", d, 2000, int[].class, 2.f);
			final Format f2 = (Format) new Format("xyz").intersects(f1);	
			assertEquals(f1.getStringBuffer().toString(), "clone\n");	// make sure intersects calls clone
			
			assertEquals(f2.getClass(), VideoFormat.class);	// does not construct clone using reflection
			
			
		}
		
		
	}
	
	class MyVideoFormat extends VideoFormat
	{
		private StringBuffer b = new StringBuffer();
		
		public MyVideoFormat(String arg0, Dimension arg1, int arg2, Class arg3, float arg4)
		{
			super(arg0, arg1, arg2, arg3, arg4);
		}

		public MyVideoFormat(String arg0)
		{
			super(arg0);
		}
		
		public void doCopy(Format f)
		{
			this.copy(f);
		}

		//@Override
		public Object clone()
		{
			b.append("clone\n");
			return super.clone();
		}

		//@Override
		protected void copy(Format arg0)
		{
			
			super.copy(arg0);
		}

		public StringBuffer getStringBuffer()
		{
			return b;
		}
	}
	
	private void assertEquals(double a, double b)
	{
		assertTrue(a == b);
	}
}