formatencodingcodetest.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.lang.reflect.Method;

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

import junit.framework.TestCase;
import net.sf.fmj.codegen.CGUtils;
import net.sf.fmj.codegen.MediaCGUtils;

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

	public void testFormats() throws Exception
	{
		
		{
			// to demonstrate that it uses the encoding code:
			final Format f1 = new AudioFormat("abc", -1.0, -1, -1, -1, -1, -1, -1.0, Format.byteArray);
			final Format f2 = new AudioFormat(" abc", -1.0, -1, -1, -1, -1, -1, -1.0, Format.byteArray);
			assertEquals(f1, f2);
			assertTrue(f1.isSameEncoding(f2));
			assertTrue(f1.isSameEncoding(" abc"));
			
		}			
		
		{
			// to demonstrate that it uses the encoding code:
			final Format f1 = new VideoFormat("abc");
			final Format f2 = new VideoFormat(" abc");
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertEquals(f1, f2);
			checkEncodingCode(f1, false);
			checkEncodingCode(f2, false);
			
		}		
		
		{
			// to demonstrate that it uses the encoding code:
			final Format f1 = new VideoFormat("abc");
			final Format f2 = new VideoFormat(" abc");
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertTrue(f1.isSameEncoding(f2));
			checkEncodingCode(f1, false);
			checkEncodingCode(f2, false);
			
		}		
		
		{
			// to demonstrate that it uses the encoding code:
			final Format f1 = new VideoFormat("abc");
			final Format f2 = new VideoFormat(" abc");
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertTrue(f1.isSameEncoding(" abc"));
			checkEncodingCode(f1, false);
			checkEncodingCode(f2, true);
			
		}	
		
		
		{
			// to demonstrate that it uses the encoding code:
			final Format f1 = new Format("abc");
			final Format f2 = new Format(" abc");
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertTrue(f1.isSameEncoding(f2));
			checkEncodingCode(f1, false);
			checkEncodingCode(f2, false);
			
		}		
		
		{
			// to demonstrate that it uses the encoding code: - // must be using == first
			final Format f1 = new Format("abc");
			final Format f2 = new Format("abc");	
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertTrue(f1.isSameEncoding(f2));
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			
		}	
		
		{
			// to demonstrate that it uses the encoding code: - not if one is null
			final Format f1 = new Format("abc");
			final Format f2 = new Format(null);
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertFalse(f1.isSameEncoding(f2));
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			
		}	
		
		{
			// to demonstrate that it uses the encoding code: - not if both are null
			final Format f1 = new Format(null);
			final Format f2 = new Format(null);
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertFalse(f1.isSameEncoding(f2));
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			
		}	
		
		{
			// to demonstrate that it uses the encoding code:
			final Format f1 = new Format("abc", byte[].class);
			final Format f2 = new Format(" abc", int[].class);
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertFalse(f1.equals(f2));
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			
		}	
		
		{
			// to demonstrate that it uses the encoding code:
			final Format f1 = new Format("abc", byte[].class);
			final Format f2 = new Format(" abc", byte[].class);
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertTrue(f1.matches(f2));
			checkEncodingCode(f1, false);
			checkEncodingCode(f2, false);
			
		}	
		
		{
			// to demonstrate that it uses the encoding code:
			final Format f1 = new Format("abc", byte[].class);
			final Format f2 = new Format(" abc", int[].class);
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertFalse(f1.matches(f2));
			checkEncodingCode(f1, false);
			checkEncodingCode(f2, false);
			
		}	
		
		{
			// to demonstrate that it uses the encoding code - but that it is not copied with clone.
			final Format f1 = new Format("abc", byte[].class);
			final Format f2 = new Format(" abc", int[].class);
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertFalse(f1.matches(f2));
			
			checkEncodingCode(f1, false);
			checkEncodingCode(f2, false);
			final Format f3 = (Format) f1.clone();
			checkEncodingCode(f3, true);
			
			
		}	
		
		{
			// to demonstrate that it uses the encoding code - but that it is not copied with intersects.
			final Format f1 = new Format("abc", byte[].class);
			final Format f2 = new Format(" abc", int[].class);
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertFalse(f1.matches(f2));
			
			checkEncodingCode(f1, false);
			checkEncodingCode(f2, false);
			final Format f3 = (Format) f1.intersects(f1);
			checkEncodingCode(f3, true);
			
			
		}	
		
		{
			// to demonstrate that it uses the encoding code - but that it is not copied with copy.
			final Format f1 = new Format("abc", byte[].class);
			final Format f2 = new Format(" abc", int[].class);
			checkEncodingCode(f1, true);
			checkEncodingCode(f2, true);
			assertFalse(f1.matches(f2));
			
			checkEncodingCode(f1, false);
			checkEncodingCode(f2, false);
			final Format f3 = new Format(null);
			final Method m = Format.class.getDeclaredMethod("copy", new Class[] {Format.class});
			m.setAccessible(true);
			m.invoke(f3, new Object[] {f1});
			checkEncodingCode(f3, true);
			assertEquals(f3.getEncoding(), null);
			assertEquals(f3.getDataType(), byte[].class);
			
			
		}	
		
	}
	

	private void checkEncodingCode(Format f1, boolean zero) throws SecurityException, IllegalArgumentException, NoSuchFieldException, IllegalAccessException
	{
		if (zero)
		{
			if (FormatPrivateTest.getEncodingCode(f1) != 0)
			{
				System.out.println("SHOULD BE ZERO: " + MediaCGUtils.formatToStr(f1));
			}
			assertEquals(FormatPrivateTest.getEncodingCode(f1), 0L);
		}
		else
		{
			if (FormatPrivateTest.getEncodingCode(f1) == 0)
			{
				System.out.println("assertEquals(FormatPrivateTest.getEncodingCode(" +  MediaCGUtils.formatToStr(f1) + "), " + CGUtils.toLiteral(FormatPrivateTest.getEncodingCode(f1)) + ");");
	
			}

			assertNotEquals(FormatPrivateTest.getEncodingCode(f1), 0L);
		}
	}
	
	private void assertNotEquals(long o1, long o2)
	{
		assertTrue(o1 != o2);
	}
	private void assertNotEquals(Object o1, Object o2)
	{
		if (o1 == null && o2 == null)
			return;
		if (o1 == null || o2 == null)
			assertFalse(true);		
		assertFalse(o1.equals(o2));
	}
	private static boolean nullSafeEquals(Object o1, Object o2)
	{
		if (o1 == null && o2 == null)
			return true;
		if (o1 == null || o2 == null)
			return false;
		return o1.equals(o2);
		
	}
	

}