cerc-io/ipld-eth-server
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Add test for GetStorageAt RPC.

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This commit is contained in:
Arijit Das 2021-06-10 11:50:25 +05:30
parent 9cf75ca66c
commit 2c1bc557e5
3 changed files with 40 additions and 7 deletions
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23
pkg/eth/backend.go
View File

@ -51,6 +51,8 @@ import (
var (
errPendingBlockNumber = errors.New("pending block number not supported")
errNegativeBlockNumber = errors.New("negative block number not supported")
errHeaderHashNotFound = errors.New("header for hash not found")
errHeaderNotFound = errors.New("header not found")
)
const (
@ -599,7 +601,7 @@ func (b *Backend) GetAccountByNumber(ctx context.Context, address common.Address
}
hash, err := b.GetCanonicalHash(uint64(number))
if err == sql.ErrNoRows {
return nil, fmt.Errorf("header not found")
return nil, errHeaderNotFound
} else if err != nil {
return nil, err
}
@ -611,7 +613,9 @@ func (b *Backend) GetAccountByNumber(ctx context.Context, address common.Address
func (b *Backend) GetAccountByHash(ctx context.Context, address common.Address, hash common.Hash) (*state.Account, error) {
_, err := b.HeaderByHash(context.Background(), hash)
if err == sql.ErrNoRows {
return nil, fmt.Errorf("no canoncial block found for provided hash (%s)", hash)
return nil, errHeaderHashNotFound
} else if err != nil {
return nil, err
}
_, accountRlp, err := b.IPLDRetriever.RetrieveAccountByAddressAndBlockHash(address, hash)
@ -725,17 +729,24 @@ func (b *Backend) GetStorageByNumber(ctx context.Context, address common.Address
return nil, errPendingBlockNumber
}
hash, err := b.GetCanonicalHash(uint64(number))
if err != nil {
if err == sql.ErrNoRows {
return nil, errHeaderNotFound
} else if err != nil {
return nil, err
}
if hash == (common.Hash{}) {
return nil, fmt.Errorf("no canoncial block hash found for provided height (%d)", number)
}
return b.GetStorageByHash(ctx, address, storageLeafKey, hash)
}
// GetStorageByHash returns the storage value for the provided contract address an storage key at the block corresponding to the provided hash
func (b *Backend) GetStorageByHash(ctx context.Context, address common.Address, storageLeafKey, hash common.Hash) (hexutil.Bytes, error) {
_, err := b.HeaderByHash(context.Background(), hash)
if err == sql.ErrNoRows {
return nil, errHeaderHashNotFound
} else if err != nil {
return nil, err
}
_, storageRlp, err := b.IPLDRetriever.RetrieveStorageAtByAddressAndStorageKeyAndBlockHash(address, storageLeafKey, hash)
return storageRlp, err
}

13
pkg/eth/eth_state_test.go
View File

@ -59,6 +59,7 @@ func init() {
}
var _ = Describe("eth state reading tests", func() {
const chainLength = 5
var (
blocks []*types.Block
receipts []types.Receipts
@ -85,7 +86,7 @@ var _ = Describe("eth state reading tests", func() {
api = eth.NewPublicEthAPI(backend, nil, false)
// make the test blockchain (and state)
blocks, receipts, chain = test_helpers.MakeChain(5, test_helpers.Genesis, test_helpers.TestChainGen)
blocks, receipts, chain = test_helpers.MakeChain(chainLength, test_helpers.Genesis, test_helpers.TestChainGen)
params := statediff.Params{
IntermediateStateNodes: true,
IntermediateStorageNodes: true,
@ -491,6 +492,16 @@ var _ = Describe("eth state reading tests", func() {
Expect(err).ToNot(HaveOccurred())
Expect(val).To(Equal(hexutil.Bytes{}))
})
It("Throws an error for a non-existing block hash", func() {
_, err := api.GetStorageAt(ctx, test_helpers.ContractAddr, test_helpers.IndexOne, rpc.BlockNumberOrHashWithHash(randomHash, true))
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError("header for hash not found"))
})
It("Throws an error for a non-existing block number", func() {
_, err := api.GetStorageAt(ctx, test_helpers.ContractAddr, test_helpers.IndexOne, rpc.BlockNumberOrHashWithNumber(chainLength+1))
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError("header not found"))
})
})
Describe("eth_getHeaderByNumber", func() {

11
test/integration_test.go
View File

@ -380,6 +380,17 @@ var _ = Describe("Integration test", func() {
Expect(err).ToNot(HaveOccurred())
Expect(gethStorage).To(Equal(ipldStorage))
})
It("gets storage for non-existing block number", func() {
blockNum := contract.BlockNumber + 100
totalSupplyIndex := "0x2"
gethStorage, err := gethClient.StorageAt(ctx, common.HexToAddress(contract.Address), common.HexToHash(totalSupplyIndex), big.NewInt(int64(blockNum)))
Expect(err).To(MatchError("header not found"))
ipldStorage, err := ipldClient.StorageAt(ctx, common.HexToAddress(contract.Address), common.HexToHash(totalSupplyIndex), big.NewInt(int64(blockNum)))
Expect(err).To(MatchError("header not found"))
Expect(gethStorage).To(Equal(ipldStorage))
})
})
Describe("eth call", func() {