import com.google.common.collect.Iterators;
import com.google.errorprone.annotations.CanIgnoreReturnValue;
import java.util.Set;

/** 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.";

 * limitations under the License.
 */

package com.google.common.graph;

import static com.google.common.graph.TestUtil.EdgeType.DIRECTED;
import static com.google.common.graph.TestUtil.EdgeType.UNDIRECTED;
import static com.google.common.truth.Truth.assertThat;

import com.google.common.graph.TestUtil.EdgeType;
import java.util.Arrays;
import java.util.Collection;
import org.junit.Test;
import org.junit.runner.RunWith;

 * limitations under the License.
 */

package com.google.common.graph;

import static com.google.common.graph.TestUtil.EdgeType.DIRECTED;
import static com.google.common.graph.TestUtil.EdgeType.UNDIRECTED;
import static com.google.common.truth.Truth.assertThat;

import com.google.common.graph.TestUtil.EdgeType;
import java.util.Arrays;
import java.util.Collection;
import org.junit.Test;
import org.junit.runner.RunWith;