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fixtures.go
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fixtures.go
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package unittest
import (
"bytes"
crand "crypto/rand"
"fmt"
"math/rand"
"net"
"testing"
"time"
"github.com/ipfs/go-cid"
pubsub "github.com/libp2p/go-libp2p-pubsub"
pubsub_pb "github.com/libp2p/go-libp2p-pubsub/pb"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/onflow/cadence"
"github.com/stretchr/testify/require"
sdk "github.com/onflow/flow-go-sdk"
hotstuff "github.com/onflow/flow-go/consensus/hotstuff/model"
"github.com/onflow/flow-go/crypto"
"github.com/onflow/flow-go/crypto/hash"
"github.com/onflow/flow-go/engine"
"github.com/onflow/flow-go/engine/access/rest/util"
"github.com/onflow/flow-go/fvm/storage/snapshot"
"github.com/onflow/flow-go/ledger"
"github.com/onflow/flow-go/ledger/common/bitutils"
"github.com/onflow/flow-go/ledger/common/testutils"
"github.com/onflow/flow-go/model/bootstrap"
"github.com/onflow/flow-go/model/chainsync"
"github.com/onflow/flow-go/model/chunks"
"github.com/onflow/flow-go/model/cluster"
"github.com/onflow/flow-go/model/encoding"
"github.com/onflow/flow-go/model/flow"
"github.com/onflow/flow-go/model/flow/filter"
"github.com/onflow/flow-go/model/messages"
"github.com/onflow/flow-go/model/verification"
"github.com/onflow/flow-go/module"
"github.com/onflow/flow-go/module/executiondatasync/execution_data"
"github.com/onflow/flow-go/module/mempool/entity"
"github.com/onflow/flow-go/module/signature"
"github.com/onflow/flow-go/module/updatable_configs"
"github.com/onflow/flow-go/network/channels"
"github.com/onflow/flow-go/network/message"
p2pconfig "github.com/onflow/flow-go/network/p2p/config"
"github.com/onflow/flow-go/network/p2p/keyutils"
"github.com/onflow/flow-go/state/protocol"
"github.com/onflow/flow-go/state/protocol/inmem"
"github.com/onflow/flow-go/utils/dsl"
)
const (
DefaultSeedFixtureLength = 64
DefaultAddress = "localhost:0"
)
// returns a deterministic math/rand PRG that can be used for deterministic randomness in tests only.
// The PRG seed is logged in case the test iteration needs to be reproduced.
func GetPRG(t *testing.T) *rand.Rand {
random := time.Now().UnixNano()
t.Logf("rng seed is %d", random)
rng := rand.New(rand.NewSource(random))
return rng
}
func IPPort(port string) string {
return net.JoinHostPort("localhost", port)
}
func AddressFixture() flow.Address {
return flow.Testnet.Chain().ServiceAddress()
}
func RandomAddressFixture() flow.Address {
return RandomAddressFixtureForChain(flow.Testnet)
}
func RandomAddressFixtureForChain(chainID flow.ChainID) flow.Address {
// we use a 32-bit index - since the linear address generator uses 45 bits,
// this won't error
addr, err := chainID.Chain().AddressAtIndex(uint64(rand.Uint32()))
if err != nil {
panic(err)
}
return addr
}
// Uint64InRange returns a uint64 value drawn from the uniform random distribution [min,max].
func Uint64InRange(min, max uint64) uint64 {
return min + uint64(rand.Intn(int(max)+1-int(min)))
}
func RandomSDKAddressFixture() sdk.Address {
addr := RandomAddressFixture()
var sdkAddr sdk.Address
copy(sdkAddr[:], addr[:])
return sdkAddr
}
func InvalidAddressFixture() flow.Address {
addr := AddressFixture()
addr[0] ^= 1 // alter one bit to obtain an invalid address
if flow.Testnet.Chain().IsValid(addr) {
panic("invalid address fixture generated valid address")
}
return addr
}
func InvalidFormatSignature() flow.TransactionSignature {
return flow.TransactionSignature{
Address: AddressFixture(),
SignerIndex: 0,
Signature: make([]byte, crypto.SignatureLenECDSAP256), // zero signature is invalid
KeyIndex: 1,
}
}
func TransactionSignatureFixture() flow.TransactionSignature {
sigLen := crypto.SignatureLenECDSAP256
s := flow.TransactionSignature{
Address: AddressFixture(),
SignerIndex: 0,
Signature: SeedFixture(sigLen),
KeyIndex: 1,
}
// make sure the ECDSA signature passes the format check
s.Signature[sigLen/2] = 0
s.Signature[0] = 0
s.Signature[sigLen/2-1] |= 1
s.Signature[sigLen-1] |= 1
return s
}
func ProposalKeyFixture() flow.ProposalKey {
return flow.ProposalKey{
Address: AddressFixture(),
KeyIndex: 1,
SequenceNumber: 0,
}
}
// AccountKeyDefaultFixture returns a randomly generated ECDSA/SHA3 account key.
func AccountKeyDefaultFixture() (*flow.AccountPrivateKey, error) {
return AccountKeyFixture(crypto.KeyGenSeedMinLen, crypto.ECDSAP256, hash.SHA3_256)
}
// AccountKeyFixture returns a randomly generated account key.
func AccountKeyFixture(
seedLength int,
signingAlgo crypto.SigningAlgorithm,
hashAlgo hash.HashingAlgorithm,
) (*flow.AccountPrivateKey, error) {
seed := make([]byte, seedLength)
_, err := crand.Read(seed)
if err != nil {
return nil, err
}
key, err := crypto.GeneratePrivateKey(signingAlgo, seed)
if err != nil {
return nil, err
}
return &flow.AccountPrivateKey{
PrivateKey: key,
SignAlgo: key.Algorithm(),
HashAlgo: hashAlgo,
}, nil
}
// AccountFixture returns a randomly generated account.
func AccountFixture() (*flow.Account, error) {
key, err := AccountKeyFixture(128, crypto.ECDSAP256, hash.SHA3_256)
if err != nil {
return nil, err
}
contracts := make(map[string][]byte, 2)
contracts["contract1"] = []byte("contract1")
contracts["contract2"] = []byte("contract2")
return &flow.Account{
Address: RandomAddressFixture(),
Balance: 100,
Keys: []flow.AccountPublicKey{key.PublicKey(1000)},
Contracts: contracts,
}, nil
}
func BlockFixture() flow.Block {
header := BlockHeaderFixture()
return *BlockWithParentFixture(header)
}
func ChainBlockFixtureWithRoot(root *flow.Header, n int) []*flow.Block {
bs := make([]*flow.Block, 0, n)
parent := root
for i := 0; i < n; i++ {
b := BlockWithParentFixture(parent)
bs = append(bs, b)
parent = b.Header
}
return bs
}
func RechainBlocks(blocks []*flow.Block) {
if len(blocks) == 0 {
return
}
parent := blocks[0]
for _, block := range blocks[1:] {
block.Header.ParentID = parent.ID()
parent = block
}
}
func FullBlockFixture() flow.Block {
block := BlockFixture()
payload := block.Payload
payload.Seals = Seal.Fixtures(10)
payload.Results = []*flow.ExecutionResult{
ExecutionResultFixture(),
ExecutionResultFixture(),
}
payload.Receipts = []*flow.ExecutionReceiptMeta{
ExecutionReceiptFixture(WithResult(payload.Results[0])).Meta(),
ExecutionReceiptFixture(WithResult(payload.Results[1])).Meta(),
}
header := block.Header
header.PayloadHash = payload.Hash()
return flow.Block{
Header: header,
Payload: payload,
}
}
func BlockFixtures(number int) []*flow.Block {
blocks := make([]*flow.Block, 0, number)
for ; number > 0; number-- {
block := BlockFixture()
blocks = append(blocks, &block)
}
return blocks
}
func ProposalFixture() *messages.BlockProposal {
block := BlockFixture()
return ProposalFromBlock(&block)
}
func ProposalFromBlock(block *flow.Block) *messages.BlockProposal {
return messages.NewBlockProposal(block)
}
func ClusterProposalFromBlock(block *cluster.Block) *messages.ClusterBlockProposal {
return messages.NewClusterBlockProposal(block)
}
func BlockchainFixture(length int) []*flow.Block {
blocks := make([]*flow.Block, length)
genesis := BlockFixture()
blocks[0] = &genesis
for i := 1; i < length; i++ {
blocks[i] = BlockWithParentFixture(blocks[i-1].Header)
}
return blocks
}
// AsSlashable returns the input message T, wrapped as a flow.Slashable instance with a random origin ID.
func AsSlashable[T any](msg T) flow.Slashable[T] {
slashable := flow.Slashable[T]{
OriginID: IdentifierFixture(),
Message: msg,
}
return slashable
}
func ReceiptAndSealForBlock(block *flow.Block) (*flow.ExecutionReceipt, *flow.Seal) {
receipt := ReceiptForBlockFixture(block)
seal := Seal.Fixture(Seal.WithBlock(block.Header), Seal.WithResult(&receipt.ExecutionResult))
return receipt, seal
}
func PayloadFixture(options ...func(*flow.Payload)) flow.Payload {
payload := flow.EmptyPayload()
for _, option := range options {
option(&payload)
}
return payload
}
// WithAllTheFixins ensures a payload contains no empty slice fields. When
// encoding and decoding, nil vs empty slices are not preserved, which can
// result in two models that are semantically equal being considered non-equal
// by our testing framework.
func WithAllTheFixins(payload *flow.Payload) {
payload.Seals = Seal.Fixtures(3)
payload.Guarantees = CollectionGuaranteesFixture(4)
for i := 0; i < 10; i++ {
receipt := ExecutionReceiptFixture(
WithResult(ExecutionResultFixture(WithServiceEvents(3))),
WithSpocks(SignaturesFixture(3)),
)
payload.Receipts = flow.ExecutionReceiptMetaList{receipt.Meta()}
payload.Results = flow.ExecutionResultList{&receipt.ExecutionResult}
}
}
func WithSeals(seals ...*flow.Seal) func(*flow.Payload) {
return func(payload *flow.Payload) {
payload.Seals = append(payload.Seals, seals...)
}
}
func WithGuarantees(guarantees ...*flow.CollectionGuarantee) func(*flow.Payload) {
return func(payload *flow.Payload) {
payload.Guarantees = append(payload.Guarantees, guarantees...)
}
}
func WithReceipts(receipts ...*flow.ExecutionReceipt) func(*flow.Payload) {
return func(payload *flow.Payload) {
for _, receipt := range receipts {
payload.Receipts = append(payload.Receipts, receipt.Meta())
payload.Results = append(payload.Results, &receipt.ExecutionResult)
}
}
}
// WithReceiptsAndNoResults will add receipt to payload only
func WithReceiptsAndNoResults(receipts ...*flow.ExecutionReceipt) func(*flow.Payload) {
return func(payload *flow.Payload) {
for _, receipt := range receipts {
payload.Receipts = append(payload.Receipts, receipt.Meta())
}
}
}
// WithExecutionResults will add execution results to payload
func WithExecutionResults(results ...*flow.ExecutionResult) func(*flow.Payload) {
return func(payload *flow.Payload) {
for _, result := range results {
payload.Results = append(payload.Results, result)
}
}
}
func BlockWithParentFixture(parent *flow.Header) *flow.Block {
payload := PayloadFixture()
header := BlockHeaderWithParentFixture(parent)
header.PayloadHash = payload.Hash()
return &flow.Block{
Header: header,
Payload: &payload,
}
}
func BlockWithGuaranteesFixture(guarantees []*flow.CollectionGuarantee) *flow.Block {
payload := PayloadFixture(WithGuarantees(guarantees...))
header := BlockHeaderFixture()
header.PayloadHash = payload.Hash()
return &flow.Block{
Header: header,
Payload: &payload,
}
}
func WithoutGuarantee(payload *flow.Payload) {
payload.Guarantees = nil
}
func StateInteractionsFixture() *snapshot.ExecutionSnapshot {
return &snapshot.ExecutionSnapshot{}
}
func BlockWithParentAndProposerFixture(
t *testing.T,
parent *flow.Header,
proposer flow.Identifier,
) flow.Block {
block := BlockWithParentFixture(parent)
indices, err := signature.EncodeSignersToIndices(
[]flow.Identifier{proposer}, []flow.Identifier{proposer})
require.NoError(t, err)
block.Header.ProposerID = proposer
block.Header.ParentVoterIndices = indices
if block.Header.LastViewTC != nil {
block.Header.LastViewTC.SignerIndices = indices
block.Header.LastViewTC.NewestQC.SignerIndices = indices
}
return *block
}
func BlockWithParentAndSeals(parent *flow.Header, seals []*flow.Header) *flow.Block {
block := BlockWithParentFixture(parent)
payload := flow.Payload{
Guarantees: nil,
}
if len(seals) > 0 {
payload.Seals = make([]*flow.Seal, len(seals))
for i, seal := range seals {
payload.Seals[i] = Seal.Fixture(
Seal.WithBlockID(seal.ID()),
)
}
}
block.SetPayload(payload)
return block
}
func GenesisFixture() *flow.Block {
genesis := flow.Genesis(flow.Emulator)
return genesis
}
func WithHeaderHeight(height uint64) func(header *flow.Header) {
return func(header *flow.Header) {
header.Height = height
}
}
func HeaderWithView(view uint64) func(*flow.Header) {
return func(header *flow.Header) {
header.View = view
}
}
func BlockHeaderFixture(opts ...func(header *flow.Header)) *flow.Header {
height := 1 + uint64(rand.Uint32()) // avoiding edge case of height = 0 (genesis block)
view := height + uint64(rand.Intn(1000))
header := BlockHeaderWithParentFixture(&flow.Header{
ChainID: flow.Emulator,
ParentID: IdentifierFixture(),
Height: height,
View: view,
})
for _, opt := range opts {
opt(header)
}
return header
}
func BlockHeaderFixtureOnChain(
chainID flow.ChainID,
opts ...func(header *flow.Header),
) *flow.Header {
height := 1 + uint64(rand.Uint32()) // avoiding edge case of height = 0 (genesis block)
view := height + uint64(rand.Intn(1000))
header := BlockHeaderWithParentFixture(&flow.Header{
ChainID: chainID,
ParentID: IdentifierFixture(),
Height: height,
View: view,
})
for _, opt := range opts {
opt(header)
}
return header
}
func BlockHeaderWithParentFixture(parent *flow.Header) *flow.Header {
height := parent.Height + 1
view := parent.View + 1 + uint64(rand.Intn(10)) // Intn returns [0, n)
var lastViewTC *flow.TimeoutCertificate
if view != parent.View+1 {
newestQC := QuorumCertificateFixture(func(qc *flow.QuorumCertificate) {
qc.View = parent.View
})
lastViewTC = &flow.TimeoutCertificate{
View: view - 1,
NewestQCViews: []uint64{newestQC.View},
NewestQC: newestQC,
SignerIndices: SignerIndicesFixture(4),
SigData: SignatureFixture(),
}
}
return &flow.Header{
ChainID: parent.ChainID,
ParentID: parent.ID(),
Height: height,
PayloadHash: IdentifierFixture(),
Timestamp: time.Now().UTC(),
View: view,
ParentView: parent.View,
ParentVoterIndices: SignerIndicesFixture(4),
ParentVoterSigData: QCSigDataFixture(),
ProposerID: IdentifierFixture(),
ProposerSigData: SignatureFixture(),
LastViewTC: lastViewTC,
}
}
func BlockHeaderWithHeight(height uint64) *flow.Header {
return BlockHeaderFixture(WithHeaderHeight(height))
}
func BlockHeaderWithParentWithSoRFixture(parent *flow.Header, source []byte) *flow.Header {
height := parent.Height + 1
view := parent.View + 1 + uint64(rand.Intn(10)) // Intn returns [0, n)
var lastViewTC *flow.TimeoutCertificate
if view != parent.View+1 {
newestQC := QuorumCertificateFixture(func(qc *flow.QuorumCertificate) {
qc.View = parent.View
})
lastViewTC = &flow.TimeoutCertificate{
View: view - 1,
NewestQCViews: []uint64{newestQC.View},
NewestQC: newestQC,
SignerIndices: SignerIndicesFixture(4),
SigData: SignatureFixture(),
}
}
return &flow.Header{
ChainID: parent.ChainID,
ParentID: parent.ID(),
Height: height,
PayloadHash: IdentifierFixture(),
Timestamp: time.Now().UTC(),
View: view,
ParentView: parent.View,
ParentVoterIndices: SignerIndicesFixture(4),
ParentVoterSigData: QCSigDataWithSoRFixture(source),
ProposerID: IdentifierFixture(),
ProposerSigData: SignatureFixture(),
LastViewTC: lastViewTC,
}
}
func ClusterPayloadFixture(n int) *cluster.Payload {
transactions := make([]*flow.TransactionBody, n)
for i := 0; i < n; i++ {
tx := TransactionBodyFixture()
transactions[i] = &tx
}
payload := cluster.PayloadFromTransactions(flow.ZeroID, transactions...)
return &payload
}
func ClusterBlockFixture() cluster.Block {
payload := ClusterPayloadFixture(3)
header := BlockHeaderFixture()
header.PayloadHash = payload.Hash()
return cluster.Block{
Header: header,
Payload: payload,
}
}
func ClusterBlockChainFixture(n int) []cluster.Block {
clusterBlocks := make([]cluster.Block, 0, n)
parent := ClusterBlockFixture()
for i := 0; i < n; i++ {
block := ClusterBlockWithParent(&parent)
clusterBlocks = append(clusterBlocks, block)
parent = block
}
return clusterBlocks
}
// ClusterBlockWithParent creates a new cluster consensus block that is valid
// with respect to the given parent block.
func ClusterBlockWithParent(parent *cluster.Block) cluster.Block {
payload := ClusterPayloadFixture(3)
header := BlockHeaderFixture()
header.Height = parent.Header.Height + 1
header.View = parent.Header.View + 1
header.ChainID = parent.Header.ChainID
header.Timestamp = time.Now()
header.ParentID = parent.ID()
header.ParentView = parent.Header.View
header.PayloadHash = payload.Hash()
block := cluster.Block{
Header: header,
Payload: payload,
}
return block
}
func WithCollRef(refID flow.Identifier) func(*flow.CollectionGuarantee) {
return func(guarantee *flow.CollectionGuarantee) {
guarantee.ReferenceBlockID = refID
}
}
func WithCollection(collection *flow.Collection) func(guarantee *flow.CollectionGuarantee) {
return func(guarantee *flow.CollectionGuarantee) {
guarantee.CollectionID = collection.ID()
}
}
func AddCollectionsToBlock(block *flow.Block, collections []*flow.Collection) {
gs := make([]*flow.CollectionGuarantee, 0, len(collections))
for _, collection := range collections {
g := collection.Guarantee()
gs = append(gs, &g)
}
block.Payload.Guarantees = gs
block.SetPayload(*block.Payload)
}
func CollectionGuaranteeFixture(options ...func(*flow.CollectionGuarantee)) *flow.CollectionGuarantee {
guarantee := &flow.CollectionGuarantee{
CollectionID: IdentifierFixture(),
SignerIndices: RandomBytes(16),
Signature: SignatureFixture(),
}
for _, option := range options {
option(guarantee)
}
return guarantee
}
func CollectionGuaranteesWithCollectionIDFixture(collections []*flow.Collection) []*flow.CollectionGuarantee {
guarantees := make([]*flow.CollectionGuarantee, 0, len(collections))
for i := 0; i < len(collections); i++ {
guarantee := CollectionGuaranteeFixture(WithCollection(collections[i]))
guarantees = append(guarantees, guarantee)
}
return guarantees
}
func CollectionGuaranteesFixture(
n int,
options ...func(*flow.CollectionGuarantee),
) []*flow.CollectionGuarantee {
guarantees := make([]*flow.CollectionGuarantee, 0, n)
for i := 1; i <= n; i++ {
guarantee := CollectionGuaranteeFixture(options...)
guarantees = append(guarantees, guarantee)
}
return guarantees
}
func BlockSealsFixture(n int) []*flow.Seal {
seals := make([]*flow.Seal, 0, n)
for i := 0; i < n; i++ {
seal := Seal.Fixture()
seals = append(seals, seal)
}
return seals
}
func CollectionListFixture(n int, options ...func(*flow.Collection)) []*flow.Collection {
collections := make([]*flow.Collection, n)
for i := 0; i < n; i++ {
collection := CollectionFixture(1, options...)
collections[i] = &collection
}
return collections
}
func CollectionFixture(n int, options ...func(*flow.Collection)) flow.Collection {
transactions := make([]*flow.TransactionBody, 0, n)
for i := 0; i < n; i++ {
tx := TransactionFixture()
transactions = append(transactions, &tx.TransactionBody)
}
col := flow.Collection{Transactions: transactions}
for _, opt := range options {
opt(&col)
}
return col
}
func FixedReferenceBlockID() flow.Identifier {
blockID := flow.Identifier{}
blockID[0] = byte(1)
return blockID
}
func CompleteCollectionFixture() *entity.CompleteCollection {
txBody := TransactionBodyFixture()
return &entity.CompleteCollection{
Guarantee: &flow.CollectionGuarantee{
CollectionID: flow.Collection{Transactions: []*flow.TransactionBody{&txBody}}.ID(),
Signature: SignatureFixture(),
ReferenceBlockID: FixedReferenceBlockID(),
SignerIndices: SignerIndicesFixture(1),
},
Transactions: []*flow.TransactionBody{&txBody},
}
}
func CompleteCollectionFromTransactions(txs []*flow.TransactionBody) *entity.CompleteCollection {
return &entity.CompleteCollection{
Guarantee: &flow.CollectionGuarantee{
CollectionID: flow.Collection{Transactions: txs}.ID(),
Signature: SignatureFixture(),
ReferenceBlockID: IdentifierFixture(),
SignerIndices: SignerIndicesFixture(3),
},
Transactions: txs,
}
}
func ExecutableBlockFixture(
collectionsSignerIDs [][]flow.Identifier,
startState *flow.StateCommitment,
) *entity.ExecutableBlock {
header := BlockHeaderFixture()
return ExecutableBlockFixtureWithParent(collectionsSignerIDs, header, startState)
}
func ExecutableBlockFixtureWithParent(
collectionsSignerIDs [][]flow.Identifier,
parent *flow.Header,
startState *flow.StateCommitment,
) *entity.ExecutableBlock {
completeCollections := make(map[flow.Identifier]*entity.CompleteCollection, len(collectionsSignerIDs))
block := BlockWithParentFixture(parent)
block.Payload.Guarantees = nil
for range collectionsSignerIDs {
completeCollection := CompleteCollectionFixture()
block.Payload.Guarantees = append(block.Payload.Guarantees, completeCollection.Guarantee)
completeCollections[completeCollection.Guarantee.CollectionID] = completeCollection
}
block.Header.PayloadHash = block.Payload.Hash()
executableBlock := &entity.ExecutableBlock{
Block: block,
CompleteCollections: completeCollections,
StartState: startState,
}
return executableBlock
}
func ExecutableBlockFromTransactions(
chain flow.ChainID,
txss [][]*flow.TransactionBody,
) *entity.ExecutableBlock {
completeCollections := make(map[flow.Identifier]*entity.CompleteCollection, len(txss))
blockHeader := BlockHeaderFixtureOnChain(chain)
block := *BlockWithParentFixture(blockHeader)
block.Payload.Guarantees = nil
for _, txs := range txss {
cc := CompleteCollectionFromTransactions(txs)
block.Payload.Guarantees = append(block.Payload.Guarantees, cc.Guarantee)
completeCollections[cc.Guarantee.CollectionID] = cc
}
block.Header.PayloadHash = block.Payload.Hash()
executableBlock := &entity.ExecutableBlock{
Block: &block,
CompleteCollections: completeCollections,
}
// Preload the id
executableBlock.ID()
return executableBlock
}
func WithExecutorID(executorID flow.Identifier) func(*flow.ExecutionReceipt) {
return func(er *flow.ExecutionReceipt) {
er.ExecutorID = executorID
}
}
func WithResult(result *flow.ExecutionResult) func(*flow.ExecutionReceipt) {
return func(receipt *flow.ExecutionReceipt) {
receipt.ExecutionResult = *result
}
}
func WithSpocks(spocks []crypto.Signature) func(*flow.ExecutionReceipt) {
return func(receipt *flow.ExecutionReceipt) {
receipt.Spocks = spocks
}
}
func ExecutionReceiptFixture(opts ...func(*flow.ExecutionReceipt)) *flow.ExecutionReceipt {
receipt := &flow.ExecutionReceipt{
ExecutorID: IdentifierFixture(),
ExecutionResult: *ExecutionResultFixture(),
Spocks: nil,
ExecutorSignature: SignatureFixture(),
}
for _, apply := range opts {
apply(receipt)
}
return receipt
}
func ReceiptForBlockFixture(block *flow.Block) *flow.ExecutionReceipt {
return ReceiptForBlockExecutorFixture(block, IdentifierFixture())
}
func ReceiptForBlockExecutorFixture(
block *flow.Block,
executor flow.Identifier,
) *flow.ExecutionReceipt {
result := ExecutionResultFixture(WithBlock(block))
receipt := ExecutionReceiptFixture(WithResult(result), WithExecutorID(executor))
return receipt
}
func ReceiptsForBlockFixture(
block *flow.Block,
ids []flow.Identifier,
) []*flow.ExecutionReceipt {
result := ExecutionResultFixture(WithBlock(block))
var ers []*flow.ExecutionReceipt
for _, id := range ids {
ers = append(ers, ExecutionReceiptFixture(WithResult(result), WithExecutorID(id)))
}
return ers
}
func WithPreviousResult(prevResult flow.ExecutionResult) func(*flow.ExecutionResult) {
return func(result *flow.ExecutionResult) {
result.PreviousResultID = prevResult.ID()
finalState, err := prevResult.FinalStateCommitment()
if err != nil {
panic("missing final state commitment")
}
result.Chunks[0].StartState = finalState
}
}
func WithBlock(block *flow.Block) func(*flow.ExecutionResult) {
chunks := 1 // tailing chunk is always system chunk
var previousResultID flow.Identifier
if block.Payload != nil {
chunks += len(block.Payload.Guarantees)
}
blockID := block.ID()
return func(result *flow.ExecutionResult) {
startState := result.Chunks[0].StartState // retain previous start state in case it was user-defined
result.BlockID = blockID
result.Chunks = ChunkListFixture(uint(chunks), blockID)
result.Chunks[0].StartState = startState // set start state to value before update
result.PreviousResultID = previousResultID
}
}
func WithChunks(n uint) func(*flow.ExecutionResult) {
return func(result *flow.ExecutionResult) {
result.Chunks = ChunkListFixture(n, result.BlockID)
}
}
func ExecutionResultListFixture(
n int,
opts ...func(*flow.ExecutionResult),
) []*flow.ExecutionResult {
results := make([]*flow.ExecutionResult, 0, n)
for i := 0; i < n; i++ {
results = append(results, ExecutionResultFixture(opts...))
}
return results
}
func WithExecutionResultBlockID(blockID flow.Identifier) func(*flow.ExecutionResult) {
return func(result *flow.ExecutionResult) {
result.BlockID = blockID
for _, chunk := range result.Chunks {
chunk.BlockID = blockID
}
}
}
func WithFinalState(commit flow.StateCommitment) func(*flow.ExecutionResult) {
return func(result *flow.ExecutionResult) {
result.Chunks[len(result.Chunks)-1].EndState = commit
}
}
func WithServiceEvents(n int) func(result *flow.ExecutionResult) {
return func(result *flow.ExecutionResult) {
result.ServiceEvents = ServiceEventsFixture(n)
}
}
func WithExecutionDataID(id flow.Identifier) func(result *flow.ExecutionResult) {
return func(result *flow.ExecutionResult) {
result.ExecutionDataID = id
}
}
func ServiceEventsFixture(n int) flow.ServiceEventList {
sel := make(flow.ServiceEventList, n)
for i := 0; i < n; i++ {
switch i % 3 {
case 0:
sel[i] = EpochCommitFixture().ServiceEvent()
case 1:
sel[i] = EpochSetupFixture().ServiceEvent()
case 2:
sel[i] = VersionBeaconFixture().ServiceEvent()
}
}
return sel
}
func ExecutionResultFixture(opts ...func(*flow.ExecutionResult)) *flow.ExecutionResult {
blockID := IdentifierFixture()
result := &flow.ExecutionResult{
PreviousResultID: IdentifierFixture(),
BlockID: IdentifierFixture(),
Chunks: ChunkListFixture(2, blockID),
ExecutionDataID: IdentifierFixture(),
}
for _, apply := range opts {
apply(result)
}
return result
}
func WithApproverID(approverID flow.Identifier) func(*flow.ResultApproval) {
return func(ra *flow.ResultApproval) {
ra.Body.ApproverID = approverID
}
}
func WithAttestationBlock(block *flow.Block) func(*flow.ResultApproval) {
return func(ra *flow.ResultApproval) {
ra.Body.Attestation.BlockID = block.ID()
}
}
func WithExecutionResultID(id flow.Identifier) func(*flow.ResultApproval) {
return func(ra *flow.ResultApproval) {
ra.Body.ExecutionResultID = id
}
}
func WithBlockID(id flow.Identifier) func(*flow.ResultApproval) {
return func(ra *flow.ResultApproval) {
ra.Body.BlockID = id
}
}
func WithChunk(chunkIdx uint64) func(*flow.ResultApproval) {
return func(approval *flow.ResultApproval) {
approval.Body.ChunkIndex = chunkIdx
}
}
func ResultApprovalFixture(opts ...func(*flow.ResultApproval)) *flow.ResultApproval {
attestation := flow.Attestation{
BlockID: IdentifierFixture(),
ExecutionResultID: IdentifierFixture(),
ChunkIndex: uint64(0),
}
approval := flow.ResultApproval{
Body: flow.ResultApprovalBody{
Attestation: attestation,
ApproverID: IdentifierFixture(),
AttestationSignature: SignatureFixture(),
Spock: nil,
},
VerifierSignature: SignatureFixture(),
}
for _, apply := range opts {
apply(&approval)