package net.sourceforge.pain.db;

import junit.framework.*;
import net.sourceforge.pain.db.data.*;

import java.io.*;

/**
 * User: fmike  Date: Aug 26, 2003   Time: 3:30:29 AM
 */
public final class DeleteTest extends TestCase {


	private PainDB db;

	public DeleteTest() {
		super("DeleteTest");
	}

	protected void setUp() throws Exception {
		db = new PainDB(getName() + ".db");
		db.ALLOW_PLAIN_WRITE = true; // allow work without transactions
		db.MANUAL_FLUSH_MODE = true; // commit will not flush (objects stays dirty)

	}

	protected void tearDown() throws Exception {
		if (db != null) {
			File file = new File(db.getDbFileName());
			if (!db.isClosed()) {
				db.forceClose();
			}
			db = null;
			file.delete();
		}
	}

	public void testDelete1() {
		ObjWithActiveDelete1 obj1 = new ObjWithActiveDelete1(db);
		ObjWithActiveDelete1 obj2 = new ObjWithActiveDelete1(db);
		obj1.setRef1(obj2);

		obj1.delete();
		assertTrue(obj2.isDetached());
	}

	public void testDeleteOnRollback1() {
		db.beginTransaction();
		ObjWithActiveDelete1 obj1 = new ObjWithActiveDelete1(db);
		ObjWithActiveDelete1 obj2 = new ObjWithActiveDelete1(db);
		obj1.setRef1(obj2);
		db.rollbackTransaction();
	}

	public void testDeleteOnRollback2() {
		db.beginTransaction();
		ObjWithActiveDelete2 obj2 = new ObjWithActiveDelete2(db);
		ObjWithActiveDelete1 obj1 = new ObjWithActiveDelete1(db);
		obj2.setRef1(obj1);
		db.rollbackTransaction();
	}

	public void testDeleteOnRollback2InverseClasscreation() {
		db.beginTransaction();
		ObjWithActiveDelete1 obj1 = new ObjWithActiveDelete1(db);
		ObjWithActiveDelete2 obj2 = new ObjWithActiveDelete2(db);
		obj2.setRef1(obj1);
		db.rollbackTransaction();
	}

	public void testInverseRemoveBugs1() throws IOException {
		db.beginTransaction();
		AllFieldTypesObject obj1 = new AllFieldTypesObject(db);
		AllFieldTypesObject obj2 = new AllFieldTypesObject(db);

		AllFieldTypesObject[] objs = new AllFieldTypesObject[2];
		for (int i = 0; i < objs.length; i++) {
			objs[i] = new AllFieldTypesObject(db);
			objs[i].getREFERENCE_SET().add(obj1);
			objs[i].getREFERENCE_SET().add(obj2);
		}
		objs[0].getREFERENCE_SET().remove(obj2);  //breaking second item in inverse refs list of obj2 (with a bug)
		obj2.delete();   // here we got assertion error from DbAbstractMap.unlinkFromMap when try to inlink inverse ref already removed
		db.commitTransaction();
	}
}