@Test
public void testCompareGraphsForEmptyExpectedGraphAndEmptyGivenGraph() throws SQLException {

    // GIVEN
    final Graph<Node, Edge> expectedGraph = createGraph(Collections.emptyList(), Collections.emptyList());
    final Graph<Node, Edge> givenGraph = createGraph(Collections.emptyList(), Collections.emptyList());
    final GraphComparator comparator = new GraphComparator(graphElementFactory, new String[] {}, false);
    when(dbReader.readGraph(connection)).thenReturn(givenGraph);
    // WHEN
    comparator.compare(connection, expectedGraph, errorCollector);
    // THEN
    verifyZeroInteractions(errorCollector);
}