/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.neo4j.kernel.impl.traversal;

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.never;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.util.Iterator;
import org.junit.jupiter.api.Test;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.traversal.InitialBranchState;
import org.neo4j.graphdb.traversal.TraversalContext;
import org.neo4j.graphdb.traversal.Uniqueness;

class AsOneStartBranchTest {
    @Test
    void donNotExhaustIteratorWhenUsingRelationshipPath() {
        // Given
        Iterable<Node> nodeIterable = mock(Iterable.class);
        Iterator<Node> nodeIterator = mock(Iterator.class);
        when(nodeIterable.iterator()).thenReturn(nodeIterator);
        when(nodeIterator.hasNext()).thenReturn(true);

        // When
        new AsOneStartBranch(
                mock(TraversalContext.class),
                nodeIterable,
                mock(InitialBranchState.class),
                Uniqueness.RELATIONSHIP_PATH);

        // Then
        verify(nodeIterator, never()).next();
    }
}
