JavaPatternMatching/test/bytecode/VariableMultimethodsTest.java

package bytecode;

import static org.junit.Assert.*;

import java.io.File;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.Vector;

import org.junit.Test;

import org.junit.Ignore;

import bytecode.SourceFileBytecodeTest;


public class VariableMultimethodsTest extends SourceFileBytecodeTest{
	@Override
	protected void init() {
		testName = "VariableMultimethods";
		rootDirectory = System.getProperty("user.dir")+"/test/bytecode/";
	}
	
	@Test
	public void testConstruct() throws Exception{
	    ClassLoader classLoader = getClassLoader();

	    Class cls =  classLoader.loadClass(testName);
	    
		Object obj = cls.newInstance();
		assertTrue(true);
	}
	
	@Test
	public void testOneArgument() throws Exception{
	    ClassLoader classLoader = getClassLoader();

	    Class cls =  classLoader.loadClass(testName);
	    
		Object obj = cls.newInstance();
		
		Integer y = 1;
		
		Class[] params = new Class[]{
				y.getClass()
		};
		
		Method method = cls.getDeclaredMethod("method", params);
		Integer returnValue = (Integer) method.invoke(obj, y);
		assertEquals(new Integer(1), returnValue);
	}
	
	@Test
	public void testTwoArgument() throws Exception{
	    ClassLoader classLoader = getClassLoader();

	    Class cls =  classLoader.loadClass(testName);
	    
		Object obj = cls.newInstance();
		
		Integer x = 1;
		Integer y = 2;
		
		Class[] params = new Class[]{
				x.getClass(),
				y.getClass()
		};
		
		Method method = cls.getDeclaredMethod("method", params);
		Integer returnValue = (Integer) method.invoke(obj, x, y);
		assertEquals(new Integer(3), returnValue);
	}
	
	@Test
	public void testThreeArgument() throws Exception{
	    ClassLoader classLoader = getClassLoader();

	    Class cls =  classLoader.loadClass(testName);
	    
		Object obj = cls.newInstance();
		
		Integer z = 1;
		Integer x = 2;
		Integer y = 4;
		
		Class[] params = new Class[]{
				z.getClass(),
				x.getClass(),
				y.getClass()
		};
		
		Method method = cls.getDeclaredMethod("method", params);
		Integer returnValue = (Integer) method.invoke(obj, z, x, y);
		assertEquals(new Integer(7), returnValue);
	}
}