/**
 * 
 */
package bytecode.simplifyalgo;

import static org.junit.Assert.*;

import java.util.HashMap;
import java.util.HashSet;

import org.junit.BeforeClass;
import org.junit.Test;
import org.objectweb.asm.Type;

import de.dhbwstuttgart.bytecode.TPHExtractor;
import de.dhbwstuttgart.bytecode.constraint.ExtendsConstraint;
import de.dhbwstuttgart.bytecode.constraint.TPHConstraint;
import de.dhbwstuttgart.bytecode.constraint.TPHConstraint.Relation;
import de.dhbwstuttgart.bytecode.utilities.MethodAndTPH;
import de.dhbwstuttgart.bytecode.utilities.Simplify;

/**
 * @author Fayez Abu Alia
 *
 */
public class CycleTest {
	
	private static TPHExtractor tphExtractor;
	private static String methName;

	/**
	 * @throws java.lang.Exception
	 */
	@BeforeClass
	public static void setUpBeforeClass() throws Exception {
		tphExtractor = new TPHExtractor();
		// A < B
		TPHConstraint c1 = new ExtendsConstraint("A", "B", Relation.EXTENDS);
		// B < C
		TPHConstraint c2 = new ExtendsConstraint("B", "C", Relation.EXTENDS);
		// C < D
		TPHConstraint c3 = new ExtendsConstraint("C", "D", Relation.EXTENDS);
		// D < A
		TPHConstraint c4 = new ExtendsConstraint("D", "A", Relation.EXTENDS);
		// name
		methName = "m";
		MethodAndTPH mtph = new MethodAndTPH("m");
		mtph.getTphs().add("A");
		mtph.getTphs().add("B");
		mtph.getTphs().add("C");
		mtph.getTphs().add("D");
		tphExtractor.ListOfMethodsAndTph.add(mtph);
		tphExtractor.allCons.add(c1);
		tphExtractor.allCons.add(c2);
		tphExtractor.allCons.add(c3);
		tphExtractor.allCons.add(c4);
		
	}

	@Test
	public void test() {
		HashMap<TPHConstraint, HashSet<String>> result = new HashMap<>();
		HashSet<String> equals = new HashSet<>();
		equals.add("A");
		equals.add("B");
		equals.add("C");
		equals.add("D");
		TPHConstraint k = new ExtendsConstraint("A", Type.getInternalName(Object.class), Relation.EXTENDS);
		result.put(k, equals);
		
		HashMap<TPHConstraint, HashSet<String>> sim = Simplify.simplifyConstraints(methName, tphExtractor);
		boolean areEquals = SimpleCycle.areMapsEqual(result, sim);
		assertTrue(areEquals);
	}

}