formatprivatetest.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 java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import javax.media.Format;
import javax.media.format.AudioFormat;
import javax.media.format.RGBFormat;
import javax.media.format.YUVFormat;


import junit.framework.TestCase;

/**
 * 
 * @author Ken Larson
 *
 */
public class FormatPrivateTest extends TestCase
{
	public void testFormat() throws Exception
	{
		final Format value = new Format("abc");
		
		assertEquals(getEncodingCode(value), 0L);
		
		assertTrue(value.isSameEncoding(value));
		assertEquals(getEncodingCode(value), 0L);
		
		assertTrue(value.isSameEncoding(new Format("abc")));
		assertEquals(value.getEncoding(), "abc");
		assertEquals(getEncodingCode(value), 0L);
		assertEquals(value.matches(new Format("abc")), true);
		assertEquals(getEncodingCode(value), 0L);
	
		
		//System.out.println(getEncodingCode(value, "abc"));
		assertEquals(getEncodingCode(value, ""), 0L);
		assertEquals(getEncodingCode(value, "a"), 33L);
		assertEquals(getEncodingCode(value, "b"), 34L);
		for (int i = 'a'; i <= 'z'; ++i)
		{
			String test = "!z" + (char) i;
			testEncodingCode(test);
		}
		for (int i = 'A'; i <= 'Z'; ++i)
		{
			String test = "!z" + (char) i;
			testEncodingCode(test);
		}
		
		testEncodingCode("abc");
		testEncodingCode("foo.bar");
		testEncodingCode("foo/bar");
		testEncodingCode("foo_bar");


		//gen();
		
		// clz:
		
		testClz(new RGBFormat());
		testClz(new RGBFormat(new Dimension(1, 2), 1000, byte[].class, 1.f, 8, 0xff, 0x00ff, 0x0000ff));
		
		for (int i = 0; i < SerializableTest.formats.length; ++i)
		{
			final Format f = SerializableTest.formats[i];
		
			testClz(f);
		}
		
	}
	
	public void testClz(Format f) throws Exception
	{
		assertEquals(getClz(f), f.getClass());
	}
	
	
	public void testEncodingCode(String s) throws Exception
	{
		final Format value = new Format("abc");
		if (getEncodingCode(value, s) != stringEncodingCodeVal(s))
		{	System.out.println(s + ": " + getEncodingCode(value, s) + "!=" + stringEncodingCodeVal(s));
			assertTrue(false);
		}
		
	}
	
	void gen() throws Exception
	{
		final Format value = new Format("abc");
		
		for (int i = 0; i <= 255; ++i)
		{
			System.out.println("m.put((char) " + i + ", " + getEncodingCode(value, "" + (char) i) + ");");
		}
	}
	
	// utilities for Format.getEncodingCode
	private long stringEncodingCodeVal(String s)
	{
		long result = 0;
		for (int i = 0; i < s.length(); ++i)
		{
			final char c = s.charAt(i);
			result *= 64;
			result += charEncodingCodeVal(c);
			
		}
		return result;
	}
	
	
	private int charEncodingCodeVal(char c)
	{
		
		if (c <= (char) 95)
			return c - 32;
		if (c == 96)
			return -1;
		if (c <= 122)
			return c - 64;
		if (c <= 127)
			return -1;
		if (c <= 191)
			return -94;
		if (c <= 255)
			return -93;
		
		return -1;
		
	}
	
	
	public void testYUVFormat_ENCODING() throws Exception
	{
		assertEquals(new YUVFormat().getEncoding(), "yuv");
		
		
		final Field f = YUVFormat.class.getDeclaredField("ENCODING");
		f.setAccessible(true);
		
		assertEquals((String) f.get(null), "yuv");
		
	}
	
	public void testAudioFormat() throws Exception
	{
		AudioFormat format = new AudioFormat("abc");
		

		{
			final Field f = AudioFormat.class.getDeclaredField("multiplier");
			f.setAccessible(true);
			assertEquals((Double) f.get(format), new Double(-1.0));
		}
		
		{
			final Field f = AudioFormat.class.getDeclaredField("margin");
			f.setAccessible(true);
			assertEquals(((Integer) f.get(format)).intValue(), 0);
		}
		{
			final Field f = AudioFormat.class.getDeclaredField("init");
			f.setAccessible(true);
			assertEquals(((Boolean) f.get(format)).booleanValue(), false);
		}
	}
		
	
	
	
	public static long getEncodingCode(Format value, String s) throws SecurityException, NoSuchMethodException, IllegalArgumentException, IllegalAccessException, InvocationTargetException
	{
		final Method m = Format.class.getDeclaredMethod("getEncodingCode", new Class[]{String.class});
		m.setAccessible(true);
		final Long result = (Long) m.invoke(value, new Object[] {s});
		return result.longValue();
	}
	
	public static long getEncodingCode(Format value) throws SecurityException, NoSuchFieldException, IllegalArgumentException, IllegalAccessException
	{
		final Field f = Format.class.getDeclaredField("encodingCode");
		f.setAccessible(true);
		
		return ((Long) f.get(value)).longValue();
	}
	
	
	private static Class getClz(Format value) throws SecurityException, NoSuchFieldException, IllegalArgumentException, IllegalAccessException
	{
		final Field f = Format.class.getDeclaredField("clz");
		f.setAccessible(true);
		
		return (Class) f.get(value);
	}

}