*/
  @Test
  fun trimToSizeWithActiveEdit() {
    val expectedByteCount = if (windows) 10L else 0L
    val afterRemoveFileContents = if (windows) "a1234" else null

    set("a", "a1234", "a1234")
    val a = cache.edit("a")!!
    a.setString(0, "a123")
    cache.maxSize = 8 // Smaller than the sum of active edits!
    cache.flush() // Force trimToSize().
    assertThat(cache.size()).isEqualTo(expectedByteCount)

    testRotate(new char[] {'1', '2', '3', '4', '5'}, 1, new char[] {'5', '1', '2', '3', '4'});
    testRotate(new char[] {'1', '2', '3', '4', '5'}, 3, new char[] {'3', '4', '5', '1', '2'});
    testRotate(new char[] {'1', '2', '3', '4', '5'}, 4, new char[] {'2', '3', '4', '5', '1'});
    testRotate(new char[] {'1', '2', '3', '4', '5'}, 6, new char[] {'5', '1', '2', '3', '4'});
  }

  public void testRotateIndexed() {

    testRotate(new double[] {1, 2, 3, 4, 5}, -4, new double[] {5, 1, 2, 3, 4});
    testRotate(new double[] {1, 2, 3, 4, 5}, -3, new double[] {4, 5, 1, 2, 3});
    testRotate(new double[] {1, 2, 3, 4, 5}, -1, new double[] {2, 3, 4, 5, 1});
    testRotate(new double[] {1, 2, 3, 4, 5}, 0, new double[] {1, 2, 3, 4, 5});
    testRotate(new double[] {1, 2, 3, 4, 5}, 1, new double[] {5, 1, 2, 3, 4});

    testRotate(new int[] {1, 2, 3, 4, 5}, -4, new int[] {5, 1, 2, 3, 4});
    testRotate(new int[] {1, 2, 3, 4, 5}, -3, new int[] {4, 5, 1, 2, 3});
    testRotate(new int[] {1, 2, 3, 4, 5}, -1, new int[] {2, 3, 4, 5, 1});
    testRotate(new int[] {1, 2, 3, 4, 5}, 0, new int[] {1, 2, 3, 4, 5});
    testRotate(new int[] {1, 2, 3, 4, 5}, 1, new int[] {5, 1, 2, 3, 4});
    testRotate(new int[] {1, 2, 3, 4, 5}, 3, new int[] {3, 4, 5, 1, 2});

    testRotate(new short[] {1, 2, 3, 4, 5}, -3, new short[] {4, 5, 1, 2, 3});
    testRotate(new short[] {1, 2, 3, 4, 5}, -1, new short[] {2, 3, 4, 5, 1});
    testRotate(new short[] {1, 2, 3, 4, 5}, 0, new short[] {1, 2, 3, 4, 5});
    testRotate(new short[] {1, 2, 3, 4, 5}, 1, new short[] {5, 1, 2, 3, 4});
    testRotate(new short[] {1, 2, 3, 4, 5}, 3, new short[] {3, 4, 5, 1, 2});

    with (
        client.websocket_connect("/ws/1234") as connection,
        client.websocket_connect("/ws/5678") as connection_two,
    ):
        connection.send_text("Hello from 1234")
        data1 = connection.receive_text()
        assert data1 == "You wrote: Hello from 1234"
        data2 = connection_two.receive_text()
        client1_says = "Client #1234 says: Hello from 1234"
        assert data2 == client1_says

		wantSize: 01234,
	}, {
		input: makeInput(FormatGNU, "1234",
			append(makeSparseStrings(sparseDatas{{0, 0}, {1, 1}}), []string{"", "blah"}...)...),
		wantMap:  sparseDatas{{0, 0}, {1, 1}},
		wantSize: 01234,
	}, {
		input: makeInput(FormatGNU, "3333",
			makeSparseStrings(sparseDatas{{0, 1}, {2, 1}, {4, 1}, {6, 1}})...),
		wantMap:  sparseDatas{{0, 1}, {2, 1}, {4, 1}, {6, 1}},
		wantSize: 03333,
	}, {

  }

  @Test
  fun kotlinReifiedTag() {
    val uuidTag = "1234"
    val request =
      Request
        .Builder()
        .url("https://square.com")
        .tag<String>(uuidTag) // Use the type parameter.
        .build()
    assertThat(request.tag<String>()).isSameAs("1234")
    assertThat(request.tag<Any>()).isNull()

    // Alternate access APIs also work.

		target any
		want   bool
	}{
		{
			name:   "url.Error",
			err:    &url.Error{Op: "PUT", URL: "http://localhost/1234", Err: restError("remote server offline")},
			target: &url.Error{},
			want:   true,
		},
		{
			name: "net.Error",
			err:  &url.Error{Op: "PUT", URL: "http://localhost/1234", Err: restError("remote server offline")},
			want: true,
		},
		{
			name: "net.Error-unmatched",

    Set<Integer> keySet = cache.asMap().keySet();
    assertThat(keySet).isEmpty();

    // add 0, 1, 2, 3, 4
    getAll(cache, asList(0, 1, 2, 3, 4));
    CacheTesting.drainRecencyQueues(cache);
    assertThat(keySet).containsExactly(0, 1, 2, 3, 4);

    // invalidate all
    cache.invalidateAll();
    CacheTesting.drainRecencyQueues(cache);
    assertThat(keySet).isEmpty();