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();

		{seek: io.SeekStart, off: 1 << 33, wantpos: 1 << 33, readerr: io.EOF},
		{seek: io.SeekCurrent, off: 1, wantpos: 1<<33 + 1, readerr: io.EOF},
		{seek: io.SeekStart, n: 5, want: "01234"},
		{seek: io.SeekCurrent, n: 5, want: "56789"},
		{seek: io.SeekEnd, off: -1, n: 1, wantpos: 9, want: "9"},
	}

	for i, tt := range tests {
		pos, err := r.Seek(tt.off, tt.seek)
		if err == nil && tt.seekerr != "" {

		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,
	}, {

		var buf Buffer
		buf.WriteRune(r)
		check(t, fmt.Sprintf("TestWriteInvalidRune (%d)", r), &buf, "\uFFFD")
	}
}

func TestNext(t *testing.T) {
	b := []byte{0, 1, 2, 3, 4}
	tmp := make([]byte, 5)
	for i := 0; i <= 5; i++ {
		for j := i; j <= 5; j++ {
			for k := 0; k <= 6; k++ {
				// 0 <= i <= j <= 5; 0 <= k <= 6
				// Check that if we start with a buffer

	PLHA 1234(R1), $0, R3                   // 06000000a86104d2
	PLHZ 1234(R1), $0, R3                   // 06000000a06104d2
	PLQ 1234(R1), $0, R4                    // 04000000e08104d2
	PLWA 1234(R1), $0, R3                   // 04000000a46104d2
	PLWZ 1234567890(R4), $0, R3             // 06004996806402d2
	PLWZ 1234567890(R0), $1, R3             // 06104996806002d2
	PLXSD 1234(R1), $0, V1                  // 04000000a82104d2

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

  public void testRotateIndexed() {
    testRotate(new byte[] {}, 0, 0, 0, new byte[] {});

    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});

  }

  @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.