package org.simantics.db.tests.api.readGraph.getInverse;

import org.junit.Test;
import org.simantics.db.Resource;
import org.simantics.db.common.primitiverequest.Inverse;
import org.simantics.db.exception.NoInverseException;
import org.simantics.db.testing.base.ExistingDatabaseTest;
import org.simantics.db.tests.common.Writes;

/*
 * When a resource does not specify L0.InverseOf, getInverse shall throw NoInverseException.
 */
public class GetInverseTest1 extends ExistingDatabaseTest {
	
	@Test
	public void test() throws Exception{

		Resource resource = getSession().syncRequest(Writes.newEmpty());

		try {
			assertNotNull("Null not allowed",getSession().syncRequest(new Inverse(resource)));
		} catch (NoInverseException e) {
			return;
		}
        fail("Should throw.");
	}
	
}