{"1", 10, false, nat{1}, 10, 1, nil, 0},
	{"0 ", 0, false, nil, 10, 1, nil, ' '},
	{"00 ", 0, false, nil, 8, 1, nil, ' '}, // octal 0
	{"0b1", 0, false, nat{1}, 2, 1, nil, 0},
	{"0B11000101", 0, false, nat{0xc5}, 2, 8, nil, 0},
	{"0B110001012", 0, false, nat{0xc5}, 2, 8, nil, '2'},
	{"07", 0, false, nat{7}, 8, 1, nil, 0},
	{"08", 0, false, nil, 10, 1, nil, '8'},
	{"08", 10, false, nat{8}, 10, 2, nil, 0},

func TestBLSR(t *testing.T) {
	for _, tt := range []struct {
		x, want uint64
	}{
		{0b00001111, 0b00001110},
		{0b00001110, 0b00001100},
		{0b00001100, 0b00001000},
		{0b11000110, 0b11000100},
		{0b00000000, 0b00000000},
	} {
		if got := tt.x & (tt.x - 1); got != tt.want {
			t.Errorf("%#x & (%#x-1) = %#x, want %#x", tt.x, tt.x, got, tt.want)
		}

	//
	// As an example, consider the configuration:
	//
	//    timeHistMinBucketBits = 9
	//    timeHistMaxBucketBits = 48
	//    timeHistSubBucketBits = 2
	//
	// Then:
	//
	//    011000001
	//    ^--
	//    │ ^
	//    │ └---- Next 2 bits -> sub-bucket 3
	//    └------- Bit 9 unset -> bucket 0
	//
	//    110000001
	//    ^--
	//    │ ^
	//    │ └---- Next 2 bits -> sub-bucket 2

import org.junit.jupiter.api.Test

internal class DerTest {
  @Test fun `decode tag and length`() {
    val buffer =
      Buffer()
        .writeByte(0b00011110)
        .writeByte(0b10000001)
        .writeByte(0b11001001)

    val derReader = DerReader(buffer)

    derReader.read("test") { header ->
      assertThat(header.tagClass).isEqualTo(DerHeader.TAG_CLASS_UNIVERSAL)
      assertThat(header.tag).isEqualTo(30)

{"Name":"LDPSW","Bits":"0|1|1|0|1|0|0|1|1|1|imm7:7|Rt2:5|Rn:5|Rt:5","Arch":"Pre-index Pre-index variant","Syntax":"LDPSW <Xt1>, <Xt2>, [<Xn|SP>, #<imm>]!","Code":"","Alias":""},
{"Name":"LDPSW","Bits":"0|1|1|0|1|0|0|1|0|1|imm7:7|Rt2:5|Rn:5|Rt:5","Arch":"Signed offset Signed offset variant","Syntax":"LDPSW <Xt1>, <Xt2>, [<Xn|SP>{, #<imm>}]","Code":"","Alias":""},

	0x1000038b, // AVDIVESW
	0x1000030b, // AVDIVESQ
	0x100003cb, // AVDIVESD
	0x100007c4, // AVCTZDM
	0x101c0642, // AVCNTMBW
	0x101a0642, // AVCNTMBH
	0x101e0642, // AVCNTMBD
	0x10180642, // AVCNTMBB
	0x10000101, // AVCMPUQ
	0x10000141, // AVCMPSQ
	0x10000687, // AVCMPGTUQCC
	0x10000287, // AVCMPGTUQ
	0x10000787, // AVCMPGTSQCC
	0x10000387, // AVCMPGTSQ
	0x100005c7, // AVCMPEQUQCC
	0x100001c7, // AVCMPEQUQ

    params = [[['a0', 'b0'], ['c0', 'd0']],
              [['a1', 'b1'], ['c1', 'd1']]]
    output = [[[['a1', 'b1'], ['c1', 'd1']]],
              [[['a0', 'b0'], ['c0', 'd0']]]]

    indices = [[[0, 1], [1, 0]], [[0, 0], [1, 1]]]
    params = [[['a0', 'b0'], ['c0', 'd0']],
              [['a1', 'b1'], ['c1', 'd1']]]
    output = [[['c0', 'd0'], ['a1', 'b1']],
              [['a0', 'b0'], ['c1', 'd1']]]