def get_individual_sponsors(
    settings: Settings,
) -> defaultdict[float, dict[str, SponsorEntity]]:
    nodes: list[SponsorshipAsMaintainerNode] = []
    edges = get_graphql_sponsor_edges(settings=settings)

    while edges:
        for edge in edges:
            nodes.append(edge.node)
        last_edge = edges[-1]

            List<String> cycle = visitCycle(graph, Collections.singleton(to), new HashMap<>(), new LinkedList<>());
            if (cycle != null) {
                // remove edge which introduced cycle
                throw new CycleDetectedException(
                        "Edge between '" + from + "' and '" + to + "' introduces to cycle in the graph", cycle);
            }
        }
    }

    private enum DfsState {
        VISITING,

     * <li>collect all the vertices for the projects that we want to build.</li>
     * <li>iterate through the deps of each project and if that dep is within
     * the set of projects we want to build then add an edge, otherwise throw
     * the edge away because that dependency is not within the set of projects
     * we are trying to build. we assume a closed set.</li>
     * <li>do a topo sort on the graph that remains.</li>
     * </ul>

        + nodes()
        + ", edges: "
        + edgeValueMap(this);
  }

  private static <N, V> Map<EndpointPair<N>, V> edgeValueMap(ValueGraph<N, V> graph) {
    return Maps.asMap(
        graph.edges(),
        edge ->
            // requireNonNull is safe because the endpoint pair comes from the graph.
            requireNonNull(graph.edgeValueOrDefault(edge.nodeU(), edge.nodeV(), null)));
  }

package jcifs.smb1.smb1;

/**
 * Unit tests for {@link FileEntry}. The interface itself has no
 * implementation, so the tests exercise the contract via Mockito mocks.
 * Each method is exercised for normal inputs, extreme or edge cases, and
 * interaction verification.
 */
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.mockito.Mockito.mock;

        when(session.isInUse()).thenReturn(inUse);

        boolean result = session.isInUse();

        assertEquals(inUse, result);
        verify(session, times(1)).isInUse();
    }

    // Happy path + edge: getSessionKey returns bytes, empty and null
    @Test
    @DisplayName("getSessionKey returns bytes, empty, then null")
    void getSessionKey_variants() throws CIFSException {
        byte[] key = new byte[] { 10, 20 };

/**
 * Tests for SmbFilenameFilter interface behaviors via simple implementations.
 * Each test creates a concrete filter to validate expected contract semantics
 * including normal operation, null handling, edge cases, and exception flow.
 */
@ExtendWith(MockitoExtension.class)
class SmbFilenameFilterTest {

    @Mock
    SmbFile mockDir;

    /**
     * Happy-path: a filter that accepts any name.
     */

  @Override
  Set<N> nodes();

  /** Returns all edges in this graph. */
  @Override
  Set<EndpointPair<N>> edges();

  //
  // Graph properties
  //

  /**
   * Returns true if the edges in this graph are directed. Directed edges connect a {@link
   * EndpointPair#source() source node} to a {@link EndpointPair#target() target node}, while
   * undirected edges connect a pair of nodes to each other.
   */

  @Override
  Set<N> nodes();

  /** Returns all edges in this graph. */
  @Override
  Set<EndpointPair<N>> edges();

  //
  // Graph properties
  //

  /**
   * Returns true if the edges in this graph are directed. Directed edges connect a {@link
   * EndpointPair#source() source node} to a {@link EndpointPair#target() target node}, while
   * undirected edges connect a pair of nodes to each other.
   */

  Optional<Integer> expectedNodeCount = Optional.absent();

  /**
   * Creates a new instance with the specified edge directionality.
   *
   * @param directed if true, creates an instance for graphs whose edges are each directed; if
   *     false, creates an instance for graphs whose edges are each undirected.
   */
  AbstractGraphBuilder(boolean directed) {
    this.directed = directed;
  }