<li>{@code indexOf(string, substring)}: Returns the index of the first occurrence of substring in string, or -1 if not found.</li>
            <li>{@code contains(string, substring)}: Checks if the string contains the substring.</li>
            <li>{@code matches(string, regex)}: Checks if the string matches the given regular expression.</li>
            <li>{@code not(condition)}: Negates the given condition.</li>

    val call = calls[0]
    assertThat(call).contains("host=" + url.host)
    assertThat(call).contains("port=" + url.port)
    assertThat(call).contains("site=" + url.host)
    assertThat(call).contains("url=$url")
    assertThat(call).contains("type=" + java.net.Authenticator.RequestorType.SERVER)
    assertThat(call).contains("prompt=Bar")
    assertThat(call).contains("protocol=http")
    assertThat(call.lowercase(Locale.US))

    return Iterators.contains(keyIterator(map.entrySet().iterator()), key);
  }

  /** An implementation of {@link Map#containsValue}. */
  static boolean containsValueImpl(Map<?, ?> map, @Nullable Object value) {
    return Iterators.contains(valueIterator(map.entrySet().iterator()), value);
  }

  /**
   * Implements {@code Collection.contains} safely for forwarding collections of map entries. If

    return Iterators.contains(keyIterator(map.entrySet().iterator()), key);
  }

  /** An implementation of {@link Map#containsValue}. */
  static boolean containsValueImpl(Map<?, ?> map, @Nullable Object value) {
    return Iterators.contains(valueIterator(map.entrySet().iterator()), value);
  }

  /**
   * Implements {@code Collection.contains} safely for forwarding collections of map entries. If

    assertThat(future.toString()).contains("[status=SUCCESS, result=[" + DATA1 + "]]");
  }

  public void testImmediateVoidFuture() throws Exception {
    ListenableFuture<@Nullable Void> voidFuture = immediateVoidFuture();

    assertThat(getDone(voidFuture)).isNull();
    assertThat(getDoneFromTimeoutOverload(voidFuture)).isNull();
    assertThat(voidFuture.toString()).contains("[status=SUCCESS, result=[null]]");
  }

    assertThat(future.toString()).contains("[status=SUCCESS, result=[" + DATA1 + "]]");
  }

  public void testImmediateVoidFuture() throws Exception {
    ListenableFuture<@Nullable Void> voidFuture = immediateVoidFuture();

    assertThat(getDone(voidFuture)).isNull();
    assertThat(getDoneFromTimeoutOverload(voidFuture)).isNull();
    assertThat(voidFuture.toString()).contains("[status=SUCCESS, result=[null]]");
  }

    final long maxSegmentWeight;

    /**
     * The key reference queue contains entries whose keys have been garbage collected, and which
     * need to be cleaned up internally.
     */
    final @Nullable ReferenceQueue<K> keyReferenceQueue;

    /**
     * The value reference queue contains value references whose values have been garbage collected,
     * and which need to be cleaned up internally.

    val bodies: MutableSet<String?> = LinkedHashSet()
    bodies.add(firstResponse.body)
    bodies.add(secondResponse.body)
    assertThat(bodies).contains("abc")
    assertThat(bodies).contains("def")
  }

  @Test
  fun get_Async() {
    server.enqueue(
      MockResponse(
        headers = headersOf("Content-Type", "text/plain"),
        body = "abc",
      ),

	objectName := "prefix/myobject"
	delObjReq := DeleteObjectsRequest{
		Quiet: false,
	}
	for i := range 10 {
		// Obtain http request to upload object.
		// object Name contains a prefix.
		objName := fmt.Sprintf("%d/%s", i, objectName)
		request, err = newTestSignedRequest(http.MethodPut, getPutObjectURL(s.endPoint, bucketName, objName),
			0, nil, s.accessKey, s.secretKey, s.signer)

    final long maxSegmentWeight;

    /**
     * The key reference queue contains entries whose keys have been garbage collected, and which
     * need to be cleaned up internally.
     */
    final @Nullable ReferenceQueue<K> keyReferenceQueue;

    /**
     * The value reference queue contains value references whose values have been garbage collected,
     * and which need to be cleaned up internally.