// TODO(user): Consider adding both error messages from here and {@link AbstractNetworkTest}
  // in one class (may be a utility class for error messages).
  private static final String ERROR_PARALLEL_EDGE = "connected by a different edge";
  private static final String ERROR_NEGATIVE_COUNT = "is non-negative";
  private static final String ERROR_ADDED_PARALLEL_EDGE =
      "Should not be allowed to add a parallel edge.";

            IllegalArgumentException.class, () -> networkAsMutableNetwork.addEdge(N4, N5, E12));
    assertThat(e).hasMessageThat().contains(ERROR_REUSE_EDGE);
    e = assertThrows(IllegalArgumentException.class, () -> addEdge(N2, N1, E12));
    assertThat(e).hasMessageThat().contains(ERROR_REUSE_EDGE);
  }

  @Test
  public void addEdge_parallelEdge_notAllowed() {
    assume().that(graphIsMutable()).isTrue();

            int max = DOS_ERROR_CODES.length - 1;

            while( max >= min ) {
                int mid = (min + max) / 2;

                if( errcode > DOS_ERROR_CODES[mid][0] ) {
                    min = mid + 1;
                } else if( errcode < DOS_ERROR_CODES[mid][0] ) {
                    max = mid - 1;
                } else {
                    return DOS_ERROR_MESSAGES[mid];
                }

    public static final int ERROR_NO_BROWSER_SERVERS_FOUND = 6118;

    static final int[] WINERR_CODES = {
        ERROR_SUCCESS, ERROR_ACCESS_DENIED, ERROR_REQ_NOT_ACCEP, ERROR_BAD_PIPE, ERROR_PIPE_BUSY, ERROR_NO_DATA, ERROR_PIPE_NOT_CONNECTED,
        ERROR_MORE_DATA, ERROR_SERVICE_NOT_INSTALLED, ERROR_NO_BROWSER_SERVERS_FOUND,
    };

    static final String[] WINERR_MESSAGES = {

    assertEquals(RUNTIME_EXCEPTION, expected);
  }

  public void testGetCheckedUntimed_Error() throws TwoArgConstructorException {
    try {
      getChecked(ERROR_FUTURE, TwoArgConstructorException.class);
    } catch (Error expected) {
      assertEquals(ERROR, expected);
      return;
    }
    fail();
  }

        for (int i = 0; i < DOS_ERROR_CODES.length; i++) {
            dosErrorCodeStatusesTmp.put(DOS_ERROR_CODES[i][0], DOS_ERROR_CODES[i][1]);
            int mappedNtCode = DOS_ERROR_CODES[i][1];
            String mappedNtMessage = errorCodeMessagesTmp.get(mappedNtCode);
            if (mappedNtMessage != null) {
                errorCodeMessagesTmp.put(DOS_ERROR_CODES[i][0], mappedNtMessage);
            }
        }

    static final int[] WINERR_CODES = {
        ERROR_SUCCESS,
        ERROR_ACCESS_DENIED,
        ERROR_REQ_NOT_ACCEP,
        ERROR_BAD_PIPE,
        ERROR_PIPE_BUSY,
        ERROR_NO_DATA,
        ERROR_PIPE_NOT_CONNECTED,
        ERROR_MORE_DATA,
        ERROR_NO_BROWSER_SERVERS_FOUND,
    };

    static final String[] WINERR_MESSAGES = {
        "The operation completed successfully.",

  // identifiable substrings of expected error messages, from Strings that we've defined
  // here to provide error messages.
  // TODO(user): Some Strings used in the subclasses can be added as static Strings
  // here too.
  static final String ERROR_MODIFIABLE_SET = "Set returned is unexpectedly modifiable";
  static final String ERROR_SELF_LOOP = "self-loops are not allowed";

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.graph;

import static com.google.common.graph.TestUtil.ERROR_ELEMENT_NOT_IN_GRAPH;
import static com.google.common.truth.Truth.assertWithMessage;

import com.google.common.testing.AbstractPackageSanityTests;
import junit.framework.AssertionFailedError;

/**

/** Utility methods used in various common.graph tests. */
final class TestUtil {
  static final String ERROR_ELEMENT_NOT_IN_GRAPH = "not an element of this graph";
  static final String ERROR_NODE_NOT_IN_GRAPH =
      "Should not be allowed to pass a node that is not an element of the graph.";
  static final String ERROR_ELEMENT_REMOVED = "used to generate this set";
  private static final String NODE_STRING = "Node";