ceremonyclient/pebble/internal/base/internal_test.go
Cassandra Heart 2e2a1e4789
v1.2.0 (#31)
2024-01-03 01:31:42 -06:00

227 lines
6.9 KiB
Go

// Copyright 2012 The LevelDB-Go and Pebble Authors. All rights reserved. Use
// of this source code is governed by a BSD-style license that can be found in
// the LICENSE file.
package base
import (
"testing"
"github.com/stretchr/testify/require"
)
func (k InternalKey) encodedString() string {
buf := make([]byte, k.Size())
k.Encode(buf)
return string(buf)
}
func TestInternalKey(t *testing.T) {
k := MakeInternalKey([]byte("foo"), 0x08070605040302, 1)
if got, want := k.encodedString(), "foo\x01\x02\x03\x04\x05\x06\x07\x08"; got != want {
t.Fatalf("k = %q want %q", got, want)
}
if !k.Valid() {
t.Fatalf("invalid key")
}
if got, want := string(k.UserKey), "foo"; got != want {
t.Errorf("ukey = %q want %q", got, want)
}
if got, want := k.Kind(), InternalKeyKind(1); got != want {
t.Errorf("kind = %d want %d", got, want)
}
if got, want := k.SeqNum(), uint64(0x08070605040302); got != want {
t.Errorf("seqNum = %d want %d", got, want)
}
}
func TestInvalidInternalKey(t *testing.T) {
testCases := []string{
"",
"\x01\x02\x03\x04\x05\x06\x07",
"foo",
"foo\x08\x07\x06\x05\x04\x03\x02",
"foo\x18\x07\x06\x05\x04\x03\x02\x01",
}
for _, tc := range testCases {
k := DecodeInternalKey([]byte(tc))
if k.Valid() {
t.Errorf("%q is a valid key, want invalid", tc)
}
// Invalid key kind because the key doesn't have an 8 byte trailer.
if k.Kind() == InternalKeyKindInvalid && k.UserKey != nil {
t.Errorf("expected nil UserKey after decoding encodedKey=%q", tc)
}
}
}
func TestInternalKeyComparer(t *testing.T) {
// keys are some internal keys, in sorted order.
keys := []string{
// The remaining test keys are all valid.
"" + "\x01\xff\xff\xff\xff\xff\xff\xff",
"" + "\x00\xff\xff\xff\xff\xff\xff\xff",
"" + "\x01\x01\x00\x00\x00\x00\x00\x00",
"" + "\x00\x01\x00\x00\x00\x00\x00\x00",
// Invalid internal keys have no user key, but have trailer "\xff \x00 \x00 \x00 \x00 \x00 \x00 \x00"
// i.e. seqNum 0 and kind 255 (InternalKeyKindInvalid).
"",
"" + "\x01\x00\x00\x00\x00\x00\x00\x00",
"" + "\x00\x00\x00\x00\x00\x00\x00\x00",
"\x00" + "\x00\x00\x00\x00\x00\x00\x00\x00",
"\x00blue" + "\x01\x11\x00\x00\x00\x00\x00\x00",
"bl\x00ue" + "\x01\x11\x00\x00\x00\x00\x00\x00",
"blue" + "\x01\x11\x00\x00\x00\x00\x00\x00",
"blue\x00" + "\x01\x11\x00\x00\x00\x00\x00\x00",
"green" + "\xff\x11\x00\x00\x00\x00\x00\x00",
"green" + "\x01\x11\x00\x00\x00\x00\x00\x00",
"green" + "\x01\x00\x00\x00\x00\x00\x00\x00",
"red" + "\x01\xff\xff\xff\xff\xff\xff\xff",
"red" + "\x01\x72\x73\x74\x75\x76\x77\x78",
"red" + "\x01\x00\x00\x00\x00\x00\x00\x11",
"red" + "\x01\x00\x00\x00\x00\x00\x11\x00",
"red" + "\x01\x00\x00\x00\x00\x11\x00\x00",
"red" + "\x01\x00\x00\x00\x11\x00\x00\x00",
"red" + "\x01\x00\x00\x11\x00\x00\x00\x00",
"red" + "\x01\x00\x11\x00\x00\x00\x00\x00",
"red" + "\x01\x11\x00\x00\x00\x00\x00\x00",
"red" + "\x00\x11\x00\x00\x00\x00\x00\x00",
"red" + "\x00\x00\x00\x00\x00\x00\x00\x00",
"\xfe" + "\x01\xff\xff\xff\xff\xff\xff\xff",
"\xfe" + "\x00\x00\x00\x00\x00\x00\x00\x00",
"\xff" + "\x01\xff\xff\xff\xff\xff\xff\xff",
"\xff" + "\x00\x00\x00\x00\x00\x00\x00\x00",
"\xff\x40" + "\x01\xff\xff\xff\xff\xff\xff\xff",
"\xff\x40" + "\x00\x00\x00\x00\x00\x00\x00\x00",
"\xff\xff" + "\x01\xff\xff\xff\xff\xff\xff\xff",
"\xff\xff" + "\x00\x00\x00\x00\x00\x00\x00\x00",
}
c := DefaultComparer.Compare
for i := range keys {
for j := range keys {
ik := DecodeInternalKey([]byte(keys[i]))
jk := DecodeInternalKey([]byte(keys[j]))
got := InternalCompare(c, ik, jk)
want := 0
if i < j {
want = -1
} else if i > j {
want = +1
}
if got != want {
t.Errorf("i=%d, j=%d, keys[i]=%q, keys[j]=%q: got %d, want %d",
i, j, keys[i], keys[j], got, want)
}
}
}
}
func TestKindsRoundtrip(t *testing.T) {
for kindNum, prettied := range internalKeyKindNames {
if prettied == "" {
continue
}
kind := InternalKeyKind(kindNum)
got := ParseKind(kind.String())
require.Equal(t, got, kind)
}
}
func TestInternalKeySeparator(t *testing.T) {
testCases := []struct {
a string
b string
expected string
}{
{"foo.SET.100", "foo.SET.99", "foo.SET.100"},
{"foo.SET.100", "foo.SET.100", "foo.SET.100"},
{"foo.SET.100", "foo.DEL.100", "foo.SET.100"},
{"foo.SET.100", "foo.SET.101", "foo.SET.100"},
{"foo.SET.100", "bar.SET.99", "foo.SET.100"},
{"foo.SET.100", "hello.SET.200", "g.SEPARATOR.72057594037927935"},
{"ABC1AAAAA.SET.100", "ABC2ABB.SET.200", "ABC2.SEPARATOR.72057594037927935"},
{"AAA1AAA.SET.100", "AAA2AA.SET.200", "AAA2.SEPARATOR.72057594037927935"},
{"AAA1AAA.SET.100", "AAA4.SET.200", "AAA2.SEPARATOR.72057594037927935"},
{"AAA1AAA.SET.100", "AAA2.SET.200", "AAA1B.SEPARATOR.72057594037927935"},
{"AAA1AAA.SET.100", "AAA2A.SET.200", "AAA2.SEPARATOR.72057594037927935"},
{"AAA1.SET.100", "AAA2.SET.200", "AAA1.SET.100"},
{"foo.SET.100", "foobar.SET.200", "foo.SET.100"},
{"foobar.SET.100", "foo.SET.200", "foobar.SET.100"},
{"foo.INGESTSST.100", "foo.INGESTSST.99", "foo.INGESTSST.100"},
}
d := DefaultComparer
for _, c := range testCases {
t.Run("", func(t *testing.T) {
a := ParseInternalKey(c.a)
b := ParseInternalKey(c.b)
expected := ParseInternalKey(c.expected)
result := a.Separator(d.Compare, d.Separator, nil, b)
if cmp := InternalCompare(d.Compare, expected, result); cmp != 0 {
t.Fatalf("expected %s, but found %s", expected, result)
}
})
}
}
func TestIsExclusiveSentinel(t *testing.T) {
userKey := []byte("foo")
testCases := []struct {
name string
key InternalKey
want bool
}{
{
name: "rangedel; max seqnum",
key: MakeInternalKey(userKey, InternalKeySeqNumMax, InternalKeyKindRangeKeyDelete),
want: true,
},
{
name: "rangedel; non-max seqnum",
key: MakeInternalKey(userKey, 42, InternalKeyKindRangeKeyDelete),
want: false,
},
{
name: "rangekeyset; max seqnum",
key: MakeInternalKey(userKey, InternalKeySeqNumMax, InternalKeyKindRangeKeySet),
want: true,
},
{
name: "rangekeyset; non-max seqnum",
key: MakeInternalKey(userKey, 42, InternalKeyKindRangeKeySet),
want: false,
},
{
name: "rangekeyunset; max seqnum",
key: MakeInternalKey(userKey, InternalKeySeqNumMax, InternalKeyKindRangeKeyUnset),
want: true,
},
{
name: "rangekeyunset; non-max seqnum",
key: MakeInternalKey(userKey, 42, InternalKeyKindRangeKeyUnset),
want: false,
},
{
name: "rangekeydel; max seqnum",
key: MakeInternalKey(userKey, InternalKeySeqNumMax, InternalKeyKindRangeKeyDelete),
want: true,
},
{
name: "rangekeydel; non-max seqnum",
key: MakeInternalKey(userKey, 42, InternalKeyKindRangeKeyDelete),
want: false,
},
{
name: "neither rangedel nor rangekey",
key: MakeInternalKey(userKey, InternalKeySeqNumMax, InternalKeyKindSet),
want: false,
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
got := tc.key.IsExclusiveSentinel()
require.Equal(t, tc.want, got)
})
}
}