ebean/src/test/java/com/avaje/tests/m2m/TestM2MDeleteNoCascade.java

package com.avaje.tests.m2m;

import java.util.List;

import javax.persistence.PersistenceException;

import org.junit.Assert;
import org.junit.Test;

import com.avaje.ebean.BaseTestCase;
import com.avaje.ebean.Ebean;
import com.avaje.tests.model.basic.MnocRole;
import com.avaje.tests.model.basic.MnocUser;

public class TestM2MDeleteNoCascade extends BaseTestCase {

  @Test
  public void test() {

    MnocRole r0 = new MnocRole("r0");
    MnocRole r1 = new MnocRole("r0");

    Ebean.save(r0);
    Ebean.save(r1);

    MnocUser u0 = new MnocUser("usr0");
    u0.addValidRole(r0);
    u0.addValidRole(r1);

    Ebean.save(u0);

    MnocUser loadedUser = Ebean.find(MnocUser.class, u0.getUserId());
    List<MnocRole> validRoles = loadedUser.getValidRoles();
    
    Assert.assertEquals(2, validRoles.size());
    
    try {
      Ebean.delete(u0);
      Assert.assertTrue("expecting an exception", false);

    } catch (PersistenceException e) {
      // we expect this
      Assert.assertTrue(true);
    }

    int rc = Ebean.deleteManyToManyAssociations(u0, "validRoles");
    Assert.assertTrue(rc != 0);

    Ebean.delete(u0);
    Assert.assertTrue(true);

  }
}