assertNotNull(second);
        // Due to round-robin, should get different channels or same order
        assertTrue(Arrays.asList(channel1, channel2).contains(first));
        assertTrue(Arrays.asList(channel1, channel2).contains(second));
    }

    @Test
    void testLeastLoadedStrategy() {
        loadBalancer.setStrategy(LoadBalancingStrategy.LEAST_LOADED);

    ServiceManager manager = new ServiceManager(asList(a, b));
    String toString = manager.toString();
    assertThat(toString).contains("NoOpService");
    assertThat(toString).contains("FailStartService");
  }

  public void testTimeouts() throws Exception {
    Service a = new NoOpDelayedService(50);
    ServiceManager manager = new ServiceManager(asList(a));
    manager.startAsync();

import static com.google.common.collect.testing.features.CollectionFeature.KNOWN_ORDER;
import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ITERATOR_REMOVE;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.testing.IteratorTester;

        MavenExecutionRequest mavenExecutionRequest = new DefaultMavenExecutionRequest();
        mavenExecutionRequest.setExecutionListener(new AbstractExecutionListener());
        mavenExecutionRequest.setGoals(Arrays.asList("clean"));
        final MavenSession session = new MavenSession(
                null,
                new DefaultRepositorySystemSession(h -> false),
                mavenExecutionRequest,

            .addValue("")
            .addValue(null)
            .add(SHORT_NAME, Arrays.asList("A"))
            .add(LONG_NAME, Arrays.asList("B"))
            .add(SHORT_NAME, Arrays.asList())
            .add(LONG_NAME, Arrays.asList())
            .addValue(Arrays.asList("C"))
            .addValue(Arrays.asList())
            .add(SHORT_NAME, Collections.singletonMap("k1", "v1"))

    assertEquals(HashMap.class, ourType.getRawType());
    assertThat(ourType.getActualTypeArguments())
        .asList()
        .containsExactlyElementsIn(asList(jvmType.getActualTypeArguments()))
        .inOrder();
    assertEquals(
        Arrays.asList(String.class, Types.newArrayType(Types.newArrayType(int.class))),
        Arrays.asList(ourType.getActualTypeArguments()));
    assertEquals(null, ourType.getOwnerType());
  }

        CurlResponse response = new CurlResponse();
        Map<String, List<String>> headers = new HashMap<>();
        headers.put("Content-Type", Arrays.asList("application/json"));
        headers.put("CONTENT-LENGTH", Arrays.asList("100"));
        headers.put("accept-encoding", Arrays.asList("gzip"));
        response.setHeaders(headers);

        // All header access should be case-insensitive

    FluentIterable<Integer> result =
        FluentIterable.<Integer>from(asList(1, 2, 3)).append(Lists.newArrayList(4, 5, 6));
    assertEquals(asList(1, 2, 3, 4, 5, 6), Lists.newArrayList(result));
    assertEquals("[1, 2, 3, 4, 5, 6]", result.toString());

    result = FluentIterable.<Integer>from(asList(1, 2, 3)).append(4, 5, 6);
    assertEquals(asList(1, 2, 3, 4, 5, 6), Lists.newArrayList(result));

import static com.google.common.collect.testing.features.CollectionSize.ZERO;
import static com.google.common.collect.testing.google.ReflectionFreeAssertThrows.assertThrows;
import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import com.google.common.collect.testing.WrongType;

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

package com.google.common.collect.testing;

import static java.util.Arrays.asList;

import com.google.common.annotations.GwtCompatible;
import java.util.Collection;
import java.util.Iterator;
import org.jspecify.annotations.Nullable;

/**