import java.net.URL;
import java.net.URLClassLoader;
import java.util.concurrent.atomic.AtomicReference;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/**
 * Tests that the {@code ClassLoader} of {@link FinalizableReferenceQueue} can be unloaded. These

import java.util.List;
import java.util.Random;
import java.util.RandomAccess;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for repeated node and edge addition and removal in a {@link Network}. */
@RunWith(JUnit4.class)

@NullUnmarked
public final class NetworkMutationTest {
  private static final int NUM_TRIALS = 5;

import java.util.List;
import java.util.Random;
import java.util.RandomAccess;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for repeated node and edge addition and removal in a {@link Graph}. */
@RunWith(JUnit4.class)

@NullUnmarked
public final class GraphMutationTest {
  private static final int NUM_TRIALS = 50;

import com.google.common.collect.ImmutableList;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for {@link Graphs#hasCycle(Graph)} and {@link Graphs#hasCycle(Network)}. */
// TODO(user): Consider moving this to GraphsTest.
@RunWith(JUnit4.class)
@NullUnmarked
public class GraphPropertiesTest {

import com.google.common.collect.Ordering;
import java.util.Comparator;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for ordering the elements of graphs. */
@RunWith(JUnit4.class)
@NullUnmarked
public final class ElementOrderTest {
  // Node order tests

  @Test
  public void nodeOrder_none() {

package com.google.common.graph;

import static com.google.common.truth.Truth.assertThat;

import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for {@link ImmutableNetwork}. */
@RunWith(JUnit4.class)
@NullUnmarked
public class ImmutableNetworkTest {

  @Test
  public void immutableNetwork() {

package com.google.common.graph;

import static com.google.common.truth.Truth.assertThat;

import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for {@link ImmutableNetwork}. */
@RunWith(JUnit4.class)
@NullUnmarked
public class ImmutableNetworkTest {

  @Test
  public void immutableNetwork() {

package com.google.common.graph;

import static com.google.common.truth.Truth.assertThat;

import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Tests for {@link ImmutableValueGraph} . */
@RunWith(JUnit4.class)
@NullUnmarked
public class ImmutableValueGraphTest {

  @Test
  public void immutableValueGraph() {

import static org.junit.Assert.assertThrows;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.testing.EqualsTester;
import java.util.Collection;
import java.util.Set;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

import static org.junit.Assert.assertThrows;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.testing.EqualsTester;
import java.util.Collection;
import java.util.Set;
import org.jspecify.annotations.NullUnmarked;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;