import org.jetbrains.kotlin.analysis.test.framework.test.configurators.AnalysisApiTestConfigurator;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.TestModuleKind;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.FrontendKind;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.AnalysisSessionMode;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.AnalysisApiMode;

import org.jetbrains.kotlin.analysis.test.framework.test.configurators.AnalysisApiTestConfigurator;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.TestModuleKind;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.FrontendKind;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.AnalysisSessionMode;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.AnalysisApiMode;

import org.jetbrains.kotlin.analysis.test.framework.test.configurators.TestModuleKind;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.FrontendKind;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.AnalysisSessionMode;
import org.jetbrains.kotlin.analysis.test.framework.test.configurators.AnalysisApiMode;

  }

  /**
   * This test checks an implementation dependent feature. It tests that the method {@code addEdge}
   * will silently add the missing nodes to the graph, then add the edge connecting them. We are not
   * using the proxy methods here as we want to test {@code addEdge} when the end-points are not
   * elements of the graph.
   */
  @Test
  public void addEdge_nodesNotInGraph() {

import static org.junit.Assert.assertTrue;

import java.util.Set;
import org.junit.Test;

/**
 * Abstract base class for testing directed {@link Graph} implementations defined in this package.
 */
public abstract class AbstractStandardDirectedGraphTest extends AbstractGraphTest {

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

        String test = expectedVersion;
        boolean reverse = false;
        final boolean result;
        if (test.startsWith(REGEX_PREFIX)) {
            result = actualVersion.matches(test.substring(REGEX_PREFIX.length()));
        } else {
            if (test.startsWith("!")) {
                reverse = true;
                test = test.substring(1);
            }

    return !disjoint(a, b);
  }

  private static Method extractMethod(Test test) {
    if (test instanceof AbstractTester) {
      AbstractTester<?> tester = (AbstractTester<?>) test;
      return Helpers.getMethod(tester.getClass(), tester.getTestMethodName());
    } else if (test instanceof TestCase) {
      TestCase testCase = (TestCase) test;
      return Helpers.getMethod(testCase.getClass(), testCase.getName());
    } else {

  // If this test fails, all bets are off
  public void testReallySimpleFingerprints() {
    assertEquals(8473225671271759044L, fingerprint("test".getBytes(UTF_8)));
    // 32 characters long
    assertEquals(7345148637025587076L, fingerprint(Strings.repeat("test", 8).getBytes(UTF_8)));
    // 256 characters long
    assertEquals(4904844928629814570L, fingerprint(Strings.repeat("test", 64).getBytes(UTF_8)));
  }

   */
  @Test
  public abstract void incidentEdges_checkReturnedSetMutability();

  @Test
  public void nodes_oneNode() {
    addNode(N1);
    assertThat(graph.nodes()).containsExactly(N1);
  }

  @Test
  public void nodes_noNodes() {
    assertThat(graph.nodes()).isEmpty();
  }

  @Test
  public void adjacentNodes_oneEdge() {
    putEdge(N1, N2);

     */
    @Test
    public void testInfo() throws Exception {
        logger.info("info");
    }

    /**
     * @throws Exception
     */
    @Test
    public void testWarn() throws Exception {
        logger.warn("warn");
    }

    /**
     * @throws Exception
     */
    @Test
    public void testError() throws Exception {
        logger.error("error");
    }

    /**