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hub_test.go
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package hub
import (
"fmt"
"io"
"testing"
"time"
"github.com/streamingfast/bstream"
"github.com/streamingfast/bstream/forkable"
pbbstream "github.com/streamingfast/bstream/pb/sf/bstream/v1"
"github.com/streamingfast/shutter"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestForkableHub_Bootstrap(t *testing.T) {
tests := []struct {
name string
liveBlocks []*pbbstream.Block
oneBlocksPasses [][]*pbbstream.Block
bufferSize int
expectStartNum uint64
expectReady bool
expectReadyAfter bool
expectBlocksInCurrentChain []uint64
}{
{
name: "vanilla",
liveBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000009", "00000008", 3),
bstream.TestBlockWithLIBNum("0000000a", "00000009", 4),
},
oneBlocksPasses: [][]*pbbstream.Block{{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 2),
bstream.TestBlockWithLIBNum("00000005", "00000004", 2),
bstream.TestBlockWithLIBNum("00000008", "00000005", 3),
}},
bufferSize: 0,
expectStartNum: 0,
expectReady: true,
expectReadyAfter: true,
expectBlocksInCurrentChain: []uint64{4, 5, 8, 9, 10},
},
{
name: "LIB met on second live block",
liveBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000009", "00000008", 3),
bstream.TestBlockWithLIBNum("0000000a", "00000009", 5),
},
oneBlocksPasses: [][]*pbbstream.Block{
{
bstream.TestBlockWithLIBNum("00000005", "00000004", 2),
bstream.TestBlockWithLIBNum("00000008", "00000005", 3),
},
{
bstream.TestBlockWithLIBNum("00000005", "00000004", 2),
bstream.TestBlockWithLIBNum("00000008", "00000005", 3),
},
},
bufferSize: 0,
expectStartNum: 0,
expectReady: false,
expectReadyAfter: true,
expectBlocksInCurrentChain: []uint64{5, 8, 9, 10},
},
{
name: "cannot join one-block-files",
liveBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000009", "00000008", 3),
bstream.TestBlockWithLIBNum("0000000a", "00000009", 4),
},
oneBlocksPasses: [][]*pbbstream.Block{
{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
},
{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
},
},
bufferSize: 0,
expectStartNum: 0,
expectReady: false,
expectReadyAfter: false,
},
{
name: "one-block-file joined eventually",
liveBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000008", "00000007", 3),
bstream.TestBlockWithLIBNum("00000009", "00000008", 3),
},
oneBlocksPasses: [][]*pbbstream.Block{
{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
bstream.TestBlockWithLIBNum("00000006", "00000004", 3),
},
{
bstream.TestBlockWithLIBNum("00000003", "00000002", 3),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
bstream.TestBlockWithLIBNum("00000006", "00000004", 3),
bstream.TestBlockWithLIBNum("00000007", "00000006", 3),
},
},
bufferSize: 2,
expectStartNum: 0,
expectReady: false,
expectReadyAfter: true,
expectBlocksInCurrentChain: []uint64{3, 4, 6, 7, 8, 9},
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
lsf := bstream.NewTestSourceFactory()
obsf := bstream.NewTestSourceFactory()
fh := NewForkableHub(lsf.NewSource, bstream.SourceFromNumFactory(obsf.SourceFromBlockNum), test.bufferSize)
go fh.Run()
ls := <-lsf.Created
// sending oneblockfiles on demand
go func() {
for _, oneBlocks := range test.oneBlocksPasses {
obs := <-obsf.Created
assert.Equal(t, test.expectStartNum, obs.StartBlockNum)
for _, blk := range oneBlocks {
require.NoError(t, obs.Push(blk, nil))
}
obs.Shutdown(io.EOF)
}
}()
if err := ls.Push(test.liveBlocks[0], nil); err != nil {
ls.Shutdown(err)
}
assert.Equal(t, test.expectReady, fh.ready)
for _, blk := range test.liveBlocks[1:] {
require.NoError(t, ls.Push(blk, nil))
}
assert.Equal(t, test.expectReadyAfter, fh.ready)
if test.expectBlocksInCurrentChain != nil {
var seenBlockNums []uint64
var chain []*bstream.PreprocessedBlock
fh.forkable.CallWithBlocksFromNum(test.expectBlocksInCurrentChain[0], func(blks []*bstream.PreprocessedBlock) {
chain = blks
}, false)
for _, blk := range chain {
seenBlockNums = append(seenBlockNums, blk.Num())
}
assert.Equal(t, test.expectBlocksInCurrentChain, seenBlockNums)
}
assert.False(t, fh.IsTerminating())
})
}
}
type expectedBlock struct {
block *pbbstream.Block
step bstream.StepType
cursorLibNum uint64
}
func TestForkableHub_SourceFromBlockNum(t *testing.T) {
tests := []struct {
name string
forkdbBlocks []*pbbstream.Block
requestBlock uint64
expectBlocks []expectedBlock
}{
{
name: "vanilla",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 2),
bstream.TestBlockWithLIBNum("00000005", "00000004", 2),
bstream.TestBlockWithLIBNum("00000008", "00000005", 3),
bstream.TestBlockWithLIBNum("00000009", "00000008", 4),
bstream.TestBlockWithLIBNum("0000000a", "00000009", 5),
},
requestBlock: 5,
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000005", "00000004", 2),
bstream.StepNewIrreversible,
5,
},
{
bstream.TestBlockWithLIBNum("00000008", "00000005", 3),
bstream.StepNew,
5,
},
{
bstream.TestBlockWithLIBNum("00000009", "00000008", 4),
bstream.StepNew,
5,
},
{
bstream.TestBlockWithLIBNum("0000000a", "00000009", 5),
bstream.StepNew,
5,
},
},
},
{
name: "step_irreversible",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 2),
bstream.TestBlockWithLIBNum("00000005", "00000004", 2),
bstream.TestBlockWithLIBNum("00000008", "00000005", 4),
bstream.TestBlockWithLIBNum("00000009", "00000008", 5),
bstream.TestBlockWithLIBNum("0000000a", "00000009", 8),
},
requestBlock: 3,
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.StepNewIrreversible,
3,
},
{
bstream.TestBlockWithLIBNum("00000004", "00000003", 2),
bstream.StepNewIrreversible,
4,
},
{
bstream.TestBlockWithLIBNum("00000005", "00000004", 2),
bstream.StepNewIrreversible,
5, // LIB set to itself
},
{
bstream.TestBlockWithLIBNum("00000008", "00000005", 4),
bstream.StepNewIrreversible,
8, // real current hub LIB
},
{
bstream.TestBlockWithLIBNum("00000009", "00000008", 5),
bstream.StepNew,
8,
},
{
bstream.TestBlockWithLIBNum("0000000a", "00000009", 8),
bstream.StepNew,
8,
},
},
},
{
name: "no source",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
},
requestBlock: 5,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
fh := &ForkableHub{
Shutter: shutter.New(),
}
fh.forkable = forkable.New(bstream.HandlerFunc(fh.processBlock),
forkable.HoldBlocksUntilLIB(),
forkable.WithKeptFinalBlocks(100),
)
fh.ready = true
for _, blk := range test.forkdbBlocks {
fh.forkable.ProcessBlock(blk, nil)
}
var seenBlocks []expectedBlock
handler := bstream.HandlerFunc(func(blk *pbbstream.Block, obj interface{}) error {
seenBlocks = append(seenBlocks, expectedBlock{blk, obj.(*forkable.ForkableObject).Step(), obj.(*forkable.ForkableObject).Cursor().LIB.Num()})
if len(seenBlocks) == len(test.expectBlocks) {
return fmt.Errorf("done")
}
return nil
})
source := fh.SourceFromBlockNum(test.requestBlock, handler)
if test.expectBlocks == nil {
assert.Nil(t, source)
return
}
require.NotNil(t, source)
go source.Run()
<-source.Terminating()
assertExpectedBlocks(t, test.expectBlocks, seenBlocks)
})
}
}
func TestForkableHub_SourceFromCursor(t *testing.T) {
tests := []struct {
name string
forkdbBlocks []*pbbstream.Block
requestCursor *bstream.Cursor
expectBlocks []expectedBlock
}{
{
name: "irr and new",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 2),
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
bstream.TestBlockWithLIBNum("00000008", "00000005", 3),
bstream.TestBlockWithLIBNum("00000009", "00000008", 3),
bstream.TestBlockWithLIBNum("0000000a", "00000009", 4),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepNew,
Block: bstream.NewBlockRefFromID("00000005"),
HeadBlock: bstream.NewBlockRefFromID("00000008"),
LIB: bstream.NewBlockRefFromID("00000003"),
},
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000004", "00000003", 2),
bstream.StepIrreversible,
4,
},
{
bstream.TestBlockWithLIBNum("00000008", "00000005", 3),
bstream.StepNew,
4,
},
{
bstream.TestBlockWithLIBNum("00000009", "00000008", 3),
bstream.StepNew,
4,
},
{
bstream.TestBlockWithLIBNum("0000000a", "00000009", 4),
bstream.StepNew,
4,
},
},
},
{
name: "cursor head in future",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepNew,
Block: bstream.NewBlockRefFromID("00000005"),
HeadBlock: bstream.NewBlockRefFromID("00000005"),
LIB: bstream.NewBlockRefFromID("00000003"),
},
},
{
name: "cursor block on head",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepNew,
Block: bstream.NewBlockRefFromID("00000004"),
HeadBlock: bstream.NewBlockRefFromID("00000004"),
LIB: bstream.NewBlockRefFromID("00000003"),
},
expectBlocks: []expectedBlock{},
},
{
name: "cursor block on head, lib moved",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
bstream.TestBlockWithLIBNum("00000005", "00000004", 4),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepNew,
Block: bstream.NewBlockRefFromID("00000005"),
HeadBlock: bstream.NewBlockRefFromID("00000005"),
LIB: bstream.NewBlockRefFromID("00000003"), // hub has LIB at 4
},
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
bstream.StepIrreversible,
4,
},
},
},
{
name: "cursor on forked block",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
bstream.TestBlockFromJSON(fmt.Sprintf(`{"id":"00000005b","prev":"00000004","number":5,"libnum":3}`)),
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
bstream.TestBlockWithLIBNum("00000006", "00000005", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepNew,
Block: bstream.NewBlockRef("00000005b", 5),
HeadBlock: bstream.NewBlockRef("00000005b", 5),
LIB: bstream.NewBlockRefFromID("00000003"),
},
expectBlocks: []expectedBlock{
{
bstream.TestBlockFromJSON(fmt.Sprintf(`{"id":"00000005b","prev":"00000004","number":5,"libnum":3}`)),
bstream.StepUndo,
3,
},
{
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000006", "00000005", 3),
bstream.StepNew,
3,
},
},
},
{
name: "cursor on undo step",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
bstream.TestBlockFromJSON(fmt.Sprintf(`{"id":"00000005b","prev":"00000004","number":5,"libnum":3}`)),
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
bstream.TestBlockWithLIBNum("00000006", "00000005", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepUndo,
Block: bstream.NewBlockRef("00000005b", 5),
HeadBlock: bstream.NewBlockRef("00000005b", 5),
LIB: bstream.NewBlockRefFromID("00000003"),
},
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000006", "00000005", 3),
bstream.StepNew,
3,
},
},
},
{
name: "cursor on undo step same block",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
bstream.TestBlockFromJSON(fmt.Sprintf(`{"id":"00000005b","prev":"00000004","number":5,"libnum":3}`)),
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
bstream.TestBlockWithLIBNum("00000006", "00000005", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepUndo,
Block: bstream.NewBlockRef("00000005", 5),
HeadBlock: bstream.NewBlockRef("00000005", 5),
LIB: bstream.NewBlockRefFromID("00000003"),
},
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000006", "00000005", 3),
bstream.StepNew,
3,
},
},
},
{
name: "cursor on deep fork",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003", "00000002", 2),
bstream.TestBlockWithLIBNum("00000004", "00000003", 3),
bstream.TestBlockFromJSON(fmt.Sprintf(`{"id":"00000005b","prev":"00000004","number":5,"libnum":3}`)),
bstream.TestBlockFromJSON(fmt.Sprintf(`{"id":"00000006b","prev":"00000005b","number":6,"libnum":3}`)),
bstream.TestBlockFromJSON(fmt.Sprintf(`{"id":"00000007b","prev":"00000006b","number":7,"libnum":3}`)),
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
bstream.TestBlockWithLIBNum("00000006", "00000005", 3),
bstream.TestBlockWithLIBNum("00000007", "00000006", 3),
bstream.TestBlockWithLIBNum("00000008", "00000007", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepUndo,
Block: bstream.NewBlockRef("00000007b", 5),
HeadBlock: bstream.NewBlockRef("00000007b", 5),
LIB: bstream.NewBlockRefFromID("00000003"),
},
expectBlocks: []expectedBlock{
{
bstream.TestBlockFromJSON(fmt.Sprintf(`{"id":"00000006b","prev":"00000005b","number":6,"libnum":3}`)),
bstream.StepUndo,
3,
},
{
bstream.TestBlockFromJSON(fmt.Sprintf(`{"id":"00000005b","prev":"00000004","number":5,"libnum":3}`)),
bstream.StepUndo,
3,
},
{
bstream.TestBlockWithLIBNum("00000005", "00000004", 3),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000006", "00000005", 3),
bstream.StepNew,
3,
},
},
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
fh := &ForkableHub{
Shutter: shutter.New(),
}
fh.forkable = forkable.New(bstream.HandlerFunc(fh.processBlock),
forkable.HoldBlocksUntilLIB(),
forkable.WithKeptFinalBlocks(100),
)
fh.ready = true
for _, blk := range test.forkdbBlocks {
require.NoError(t, fh.forkable.ProcessBlock(blk, nil))
}
var seenBlocks []expectedBlock
handler := bstream.HandlerFunc(func(blk *pbbstream.Block, obj interface{}) error {
seenBlocks = append(seenBlocks, expectedBlock{blk, obj.(*forkable.ForkableObject).Step(), obj.(*forkable.ForkableObject).Cursor().LIB.Num()})
if len(seenBlocks) == len(test.expectBlocks) {
return fmt.Errorf("done")
}
return nil
})
source := fh.SourceFromCursor(test.requestCursor, handler)
if test.expectBlocks == nil {
assert.Nil(t, source)
return
}
require.NotNil(t, source)
if len(test.expectBlocks) == 0 {
return // we get an empty source for now, until live blocks come in
}
go source.Run()
select {
case <-source.Terminating():
assertExpectedBlocks(t, test.expectBlocks, seenBlocks)
case <-time.After(time.Second):
t.Errorf("timeout waiting for blocks")
}
})
}
}
func TestForkableHub_SourceThroughCursor(t *testing.T) {
tests := []struct {
name string
forkdbBlocks []*pbbstream.Block
requestCursor *bstream.Cursor
requestStartBlock uint64
expectBlocks []expectedBlock
}{
{
name: "through canonical cursor",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2), //fork
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
bstream.TestBlockWithLIBNum("00000008a", "00000005a", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepNew,
Block: bstream.NewBlockRef("00000004a", 4),
HeadBlock: bstream.NewBlockRef("00000005a", 5),
LIB: bstream.NewBlockRef("00000003a", 3),
},
requestStartBlock: 3,
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.StepNewIrreversible,
3,
},
{
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000008a", "00000005a", 3),
bstream.StepNew,
3,
},
},
},
{
name: "through canonical undo cursor",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2), //fork
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
bstream.TestBlockWithLIBNum("00000008a", "00000005a", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepUndo,
Block: bstream.NewBlockRef("00000004a", 4),
HeadBlock: bstream.NewBlockRef("00000005a", 5),
LIB: bstream.NewBlockRef("00000003a", 3),
},
requestStartBlock: 3,
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.StepNewIrreversible,
3,
},
{
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000008a", "00000005a", 3),
bstream.StepNew,
3,
},
},
},
{
name: "through non-canonical cursor",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2), //fork
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
bstream.TestBlockWithLIBNum("00000008a", "00000005a", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepNew,
Block: bstream.NewBlockRef("00000004b", 4),
HeadBlock: bstream.NewBlockRef("00000004b", 4),
LIB: bstream.NewBlockRef("00000003a", 3),
},
requestStartBlock: 3,
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.StepNewIrreversible,
3,
},
{
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2),
bstream.StepUndo,
3,
},
{
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000008a", "00000005a", 3),
bstream.StepNew,
3,
},
},
},
{
name: "through deep non-canonical cursor",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2), //fork
bstream.TestBlockWithLIBNum("00000005b", "00000004b", 2), //fork
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
bstream.TestBlockWithLIBNum("00000008a", "00000005a", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepNew,
Block: bstream.NewBlockRef("00000005b", 5),
HeadBlock: bstream.NewBlockRef("00000005b", 5),
LIB: bstream.NewBlockRef("00000003a", 3),
},
requestStartBlock: 3,
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.StepNewIrreversible,
3,
},
{
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000005b", "00000004b", 2),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000005b", "00000004b", 2),
bstream.StepUndo,
3,
},
{
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2),
bstream.StepUndo,
3,
},
{
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000008a", "00000005a", 3),
bstream.StepNew,
3,
},
},
},
{
name: "through deep non-canonical UNDO cursor",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2), //fork
bstream.TestBlockWithLIBNum("00000005b", "00000004b", 2), //fork
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
bstream.TestBlockWithLIBNum("00000008a", "00000005a", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepUndo,
Block: bstream.NewBlockRef("00000005b", 5),
HeadBlock: bstream.NewBlockRef("00000005b", 5),
LIB: bstream.NewBlockRef("00000003a", 3),
},
requestStartBlock: 3,
expectBlocks: []expectedBlock{
{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.StepNewIrreversible,
3,
},
{
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000004b", "00000003a", 2),
bstream.StepUndo,
3,
},
{
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
bstream.StepNew,
3,
},
{
bstream.TestBlockWithLIBNum("00000008a", "00000005a", 3),
bstream.StepNew,
3,
},
},
},
{
name: "start block too low no source",
forkdbBlocks: []*pbbstream.Block{
bstream.TestBlockWithLIBNum("00000003a", "00000002a", 2),
bstream.TestBlockWithLIBNum("00000004a", "00000003a", 2),
bstream.TestBlockWithLIBNum("00000005a", "00000004a", 3),
},
requestCursor: &bstream.Cursor{
Step: bstream.StepNew,
Block: bstream.NewBlockRef("00000005a", 5),
HeadBlock: bstream.NewBlockRef("00000005a", 5),
LIB: bstream.NewBlockRef("00000003a", 3),
},
requestStartBlock: 2,
expectBlocks: nil,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
fh := &ForkableHub{
Shutter: shutter.New(),
}
fh.forkable = forkable.New(bstream.HandlerFunc(fh.processBlock),
forkable.HoldBlocksUntilLIB(),
forkable.WithKeptFinalBlocks(100),
)
fh.ready = true
for _, blk := range test.forkdbBlocks {
require.NoError(t, fh.forkable.ProcessBlock(blk, nil))
}
var seenBlocks []expectedBlock
handler := bstream.HandlerFunc(func(blk *pbbstream.Block, obj interface{}) error {
seenBlocks = append(seenBlocks, expectedBlock{blk, obj.(*forkable.ForkableObject).Step(), obj.(*forkable.ForkableObject).Cursor().LIB.Num()})
if len(seenBlocks) == len(test.expectBlocks) {
return fmt.Errorf("done")
}
return nil
})
source := fh.SourceThroughCursor(test.requestStartBlock, test.requestCursor, handler)
if test.expectBlocks == nil {
assert.Nil(t, source)
return
}
require.NotNil(t, source)
if len(test.expectBlocks) == 0 {
return // we get an empty source for now, until live blocks come in
}
go source.Run()
select {
case <-source.Terminating():
assertExpectedBlocks(t, test.expectBlocks, seenBlocks)
case <-time.After(time.Second):
t.Errorf("timeout waiting for blocks")
}
})
}
}