mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-11-14 04:05:17 +00:00
391 lines
8.8 KiB
Go
391 lines
8.8 KiB
Go
package metamorphic
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import (
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"bytes"
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"fmt"
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"io"
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"strings"
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"testing"
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"github.com/cockroachdb/datadriven"
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"github.com/cockroachdb/pebble/internal/randvar"
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"github.com/stretchr/testify/require"
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)
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func TestObjKey(t *testing.T) {
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testCases := []struct {
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key objKey
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want string
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}{
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{
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key: makeObjKey(makeObjID(dbTag, 1), []byte("foo")),
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want: "db1:foo",
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},
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{
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key: makeObjKey(makeObjID(batchTag, 1), []byte("bar")),
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want: "batch1:bar",
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},
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}
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for _, tc := range testCases {
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t.Run("", func(t *testing.T) {
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require.Equal(t, tc.want, tc.key.String())
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})
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}
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}
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func TestGlobalStateIndicatesEligibleForSingleDelete(t *testing.T) {
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key := makeObjKey(makeObjID(dbTag, 1), []byte("foo"))
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testCases := []struct {
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meta keyMeta
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want bool
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}{
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{
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meta: keyMeta{
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objKey: key,
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},
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want: false,
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},
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{
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meta: keyMeta{
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objKey: key,
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sets: 1,
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},
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want: true,
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},
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{
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meta: keyMeta{
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objKey: key,
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sets: 2,
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},
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want: false,
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},
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{
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meta: keyMeta{
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objKey: key,
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sets: 1,
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merges: 1,
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},
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want: false,
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},
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{
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meta: keyMeta{
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objKey: key,
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sets: 1,
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dels: 1,
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},
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want: false,
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},
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{
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meta: keyMeta{
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objKey: key,
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sets: 1,
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singleDel: true,
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},
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want: false,
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},
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}
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for _, tc := range testCases {
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k := newKeyManager(1)
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t.Run("", func(t *testing.T) {
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k.globalKeysMap[string(key.key)] = &tc.meta
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require.Equal(t, tc.want, k.globalStateIndicatesEligibleForSingleDelete(key.key))
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})
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}
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}
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func TestKeyMeta_MergeInto(t *testing.T) {
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testCases := []struct {
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existing keyMeta
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toMerge keyMeta
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expected keyMeta
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}{
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{
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existing: keyMeta{
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sets: 1,
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merges: 0,
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singleDel: false,
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},
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toMerge: keyMeta{
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sets: 0,
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merges: 0,
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singleDel: true,
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},
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expected: keyMeta{
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sets: 1,
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merges: 0,
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singleDel: true,
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updateOps: []keyUpdate{
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{deleted: true, metaTimestamp: 0},
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},
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},
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},
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{
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existing: keyMeta{
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sets: 3,
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merges: 1,
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dels: 7,
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},
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toMerge: keyMeta{
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sets: 4,
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merges: 2,
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dels: 8,
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del: true,
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},
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expected: keyMeta{
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sets: 7,
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merges: 3,
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dels: 15,
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del: true,
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updateOps: []keyUpdate{
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{deleted: true, metaTimestamp: 1},
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},
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},
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},
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{
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existing: keyMeta{
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sets: 3,
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merges: 1,
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dels: 7,
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del: true,
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},
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toMerge: keyMeta{
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sets: 1,
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merges: 0,
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dels: 8,
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del: false,
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},
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expected: keyMeta{
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sets: 4,
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merges: 1,
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dels: 15,
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del: false,
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updateOps: []keyUpdate{
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{deleted: false, metaTimestamp: 2},
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},
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},
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},
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}
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keyManager := newKeyManager(1 /* numInstances */)
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for _, tc := range testCases {
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t.Run("", func(t *testing.T) {
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tc.toMerge.mergeInto(keyManager, &tc.existing)
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require.Equal(t, tc.expected, tc.existing)
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})
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}
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}
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func TestKeyManager_AddKey(t *testing.T) {
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m := newKeyManager(1 /* numInstances */)
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require.Empty(t, m.globalKeys)
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k1 := []byte("foo")
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require.True(t, m.addNewKey(k1))
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require.Len(t, m.globalKeys, 1)
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require.Len(t, m.globalKeyPrefixes, 1)
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require.Contains(t, m.globalKeys, k1)
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require.Contains(t, m.globalKeyPrefixes, k1)
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require.False(t, m.addNewKey(k1))
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require.True(t, m.prefixExists([]byte("foo")))
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require.False(t, m.prefixExists([]byte("bar")))
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k2 := []byte("bar")
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require.True(t, m.addNewKey(k2))
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require.Len(t, m.globalKeys, 2)
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require.Len(t, m.globalKeyPrefixes, 2)
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require.Contains(t, m.globalKeys, k2)
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require.Contains(t, m.globalKeyPrefixes, k2)
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require.True(t, m.prefixExists([]byte("bar")))
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k3 := []byte("bax@4")
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require.True(t, m.addNewKey(k3))
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require.Len(t, m.globalKeys, 3)
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require.Len(t, m.globalKeyPrefixes, 3)
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require.Contains(t, m.globalKeys, k3)
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require.Contains(t, m.globalKeyPrefixes, []byte("bax"))
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require.True(t, m.prefixExists([]byte("bax")))
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k4 := []byte("foo@6")
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require.True(t, m.addNewKey(k4))
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require.Len(t, m.globalKeys, 4)
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require.Len(t, m.globalKeyPrefixes, 3)
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require.Contains(t, m.globalKeys, k4)
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require.True(t, m.prefixExists([]byte("foo")))
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require.Equal(t, [][]byte{
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[]byte("bar"), []byte("bax"), []byte("foo"),
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}, m.prefixes())
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}
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func TestKeyManager_GetOrInit(t *testing.T) {
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id := makeObjID(batchTag, 1)
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key := []byte("foo")
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o := makeObjKey(id, key)
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m := newKeyManager(1 /* numInstances */)
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require.NotContains(t, m.byObjKey, o.String())
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require.NotContains(t, m.byObj, id)
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require.Contains(t, m.byObj, makeObjID(dbTag, 1)) // Always contains the DB key.
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meta1 := m.getOrInit(id, key)
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require.Contains(t, m.byObjKey, o.String())
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require.Contains(t, m.byObj, id)
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// Idempotent.
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meta2 := m.getOrInit(id, key)
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require.Equal(t, meta1, meta2)
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}
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func TestKeyManager_Contains(t *testing.T) {
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id := makeObjID(dbTag, 1)
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key := []byte("foo")
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m := newKeyManager(1 /* numInstances */)
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require.False(t, m.contains(id, key))
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m.getOrInit(id, key)
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require.True(t, m.contains(id, key))
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}
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func TestKeyManager_MergeInto(t *testing.T) {
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fromID := makeObjID(batchTag, 1)
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toID := makeObjID(dbTag, 1)
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m := newKeyManager(1 /* numInstances */)
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// Two keys in "from".
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a := m.getOrInit(fromID, []byte("foo"))
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a.sets = 1
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b := m.getOrInit(fromID, []byte("bar"))
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b.merges = 2
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// One key in "to", with same value as a key in "from", that will be merged.
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m.getOrInit(toID, []byte("foo"))
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// Before, there are two sets.
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require.Len(t, m.byObj[fromID], 2)
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require.Len(t, m.byObj[toID], 1)
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m.mergeKeysInto(fromID, toID)
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// Keys in "from" sets are moved to "to" set.
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require.Len(t, m.byObj[toID], 2)
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// Key "foo" was merged into "to".
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foo := m.getOrInit(toID, []byte("foo"))
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require.Equal(t, 1, foo.sets) // value was merged.
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// Key "bar" was merged into "to".
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bar := m.getOrInit(toID, []byte("bar"))
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require.Equal(t, 2, bar.merges) // value was unchanged.
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// Keys in "from" sets are removed from maps.
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require.NotContains(t, m.byObjKey, makeObjKey(fromID, a.key))
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require.NotContains(t, m.byObjKey, makeObjKey(fromID, b.key))
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require.NotContains(t, m.byObj, fromID)
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}
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func mustParseObjID(s string) objID {
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id, err := parseObjID(s)
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if err != nil {
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panic(err)
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}
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return id
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}
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func printKeys(w io.Writer, keys [][]byte) {
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if len(keys) == 0 {
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fmt.Fprintln(w, "(none)")
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return
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}
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for i, key := range keys {
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if i > 0 {
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fmt.Fprint(w, ", ")
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}
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fmt.Fprintf(w, "%q", key)
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}
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fmt.Fprintln(w)
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}
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func TestKeyManager(t *testing.T) {
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var buf bytes.Buffer
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km := newKeyManager(1 /* numInstances */)
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datadriven.RunTest(t, "testdata/key_manager", func(t *testing.T, td *datadriven.TestData) string {
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switch td.Cmd {
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case "reset":
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km = newKeyManager(1 /* numInstances */)
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return ""
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case "run":
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buf.Reset()
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for _, line := range strings.Split(td.Input, "\n") {
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fields := strings.Fields(line)
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switch fields[0] {
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case "add-new-key":
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if km.addNewKey([]byte(fields[1])) {
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fmt.Fprintf(&buf, "%q is new\n", fields[1])
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} else {
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fmt.Fprintf(&buf, "%q already tracked\n", fields[1])
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}
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case "keys":
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case "read-keys":
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fmt.Fprintf(&buf, "read keys: ")
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printKeys(&buf, km.eligibleReadKeys())
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case "write-keys":
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fmt.Fprintf(&buf, "write keys: ")
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printKeys(&buf, km.eligibleWriteKeys())
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case "singledel-keys":
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fmt.Fprintf(&buf, "singledel keys: ")
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printKeys(&buf, km.eligibleSingleDeleteKeys(
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mustParseObjID(fields[1]), mustParseObjID(fields[2])))
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case "op":
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ops, err := parse([]byte(strings.TrimPrefix(line, "op")), parserOpts{
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allowUndefinedObjs: true,
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})
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if err != nil {
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t.Fatal(err)
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} else if len(ops) != 1 {
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t.Fatalf("expected 1 op but found %d", len(ops))
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}
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km.update(ops[0])
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fmt.Fprintf(&buf, "[%s]\n", ops[0])
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default:
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return fmt.Sprintf("unrecognized subcommand %q", fields[0])
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}
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}
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return buf.String()
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default:
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return fmt.Sprintf("unrecognized command %q", td.Cmd)
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}
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})
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}
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func TestOpWrittenKeys(t *testing.T) {
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for name, info := range methods {
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t.Run(name, func(t *testing.T) {
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// Any operations that exist in methods but are not handled in
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// opWrittenKeys will result in a panic, failing the subtest.
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opWrittenKeys(info.constructor())
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})
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}
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}
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func TestLoadPrecedingKeys(t *testing.T) {
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rng := randvar.NewRand()
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cfg := defaultConfig()
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km := newKeyManager(1 /* numInstances */)
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ops := generate(rng, 1000, cfg, km)
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cfg2 := defaultConfig()
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km2 := newKeyManager(1 /* numInstances */)
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loadPrecedingKeys(t, ops, &cfg2, km2)
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// NB: We can't assert equality, because the original run may not have
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// ever used the max of the distribution.
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require.Greater(t, cfg2.writeSuffixDist.Max(), uint64(1))
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// NB: We can't assert equality, because the original run may have generated
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// keys that it didn't end up using in operations.
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require.Subset(t, km.globalKeys, km2.globalKeys)
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require.Subset(t, km.globalKeyPrefixes, km2.globalKeyPrefixes)
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}
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