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accounts_test.go
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/*
* Flow Emulator
*
* Copyright 2019-2022 Dapper Labs, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package emulator_test
import (
"errors"
"fmt"
"testing"
"github.com/onflow/flow-go-sdk"
"github.com/onflow/flow-go-sdk/crypto"
"github.com/onflow/flow-go-sdk/templates"
"github.com/onflow/flow-go-sdk/test"
fvmerrors "github.com/onflow/flow-go/fvm/errors"
flowgo "github.com/onflow/flow-go/model/flow"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
emulator "github.com/onflow/flow-emulator"
"github.com/onflow/flow-emulator/utils/unittest"
)
const testContract = "pub contract Test {}"
func TestGetAccount(t *testing.T) {
t.Parallel()
t.Run("Get account at latest block height", func(t *testing.T) {
t.Parallel()
b, err := emulator.NewBlockchain(
emulator.WithSimpleAddresses(),
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
acc, err := b.GetAccount(b.ServiceKey().Address)
assert.NoError(t, err)
assert.Equal(t, uint64(0), acc.Keys[0].SequenceNumber)
})
t.Run("Get account at specified block height", func(t *testing.T) {
t.Parallel()
b, err := emulator.NewBlockchain(
emulator.WithSimpleAddresses(),
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
acc, err := b.GetAccount(b.ServiceKey().Address)
assert.NoError(t, err)
assert.Equal(t, uint64(0), acc.Keys[0].SequenceNumber)
contract := templates.Contract{
Name: "Test",
Source: testContract,
}
tx := templates.AddAccountContract(b.ServiceKey().Address, contract)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
require.NoError(t, err)
result, err := b.ExecuteNextTransaction()
assert.NoError(t, err)
assertTransactionSucceeded(t, result)
bl, err := b.CommitBlock()
assert.NoError(t, err)
accNow, err := b.GetAccountAtBlock(b.ServiceKey().Address, bl.Header.Height)
assert.NoError(t, err)
accPrev, err := b.GetAccountAtBlock(b.ServiceKey().Address, bl.Header.Height-uint64(1))
assert.NoError(t, err)
assert.Equal(t, accNow.Keys[0].SequenceNumber, uint64(1))
assert.Equal(t, accPrev.Keys[0].SequenceNumber, uint64(0))
})
}
func TestCreateAccount(t *testing.T) {
t.Parallel()
accountKeys := test.AccountKeyGenerator()
t.Run("Simple addresses", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithSimpleAddresses(),
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
accountKey := accountKeys.New()
tx := templates.CreateAccount(
[]*flow.AccountKey{accountKey},
nil,
b.ServiceKey().Address,
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
require.NoError(t, err)
result, err := b.ExecuteNextTransaction()
assert.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err := lastCreatedAccount(b, result)
require.NoError(t, err)
assert.Equal(t, "0000000000000005", account.Address.Hex())
assert.Equal(t, uint64(0), account.Balance)
require.Len(t, account.Keys, 1)
assert.Equal(t, accountKey.PublicKey.Encode(), account.Keys[0].PublicKey.Encode())
assert.Empty(t, account.Contracts)
})
t.Run("Single public keys", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
accountKey := accountKeys.New()
tx := templates.CreateAccount(
[]*flow.AccountKey{accountKey},
nil,
b.ServiceKey().Address,
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
require.NoError(t, err)
result, err := b.ExecuteNextTransaction()
assert.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err := lastCreatedAccount(b, result)
require.NoError(t, err)
assert.Equal(t, uint64(0), account.Balance)
require.Len(t, account.Keys, 1)
assert.Equal(t, accountKey.PublicKey.Encode(), account.Keys[0].PublicKey.Encode())
assert.Empty(t, account.Contracts)
})
t.Run("Multiple public keys", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
accountKeyA := accountKeys.New()
accountKeyB := accountKeys.New()
tx := templates.CreateAccount(
[]*flow.AccountKey{accountKeyA, accountKeyB},
nil,
b.ServiceKey().Address,
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
require.NoError(t, err)
result, err := b.ExecuteNextTransaction()
require.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err := lastCreatedAccount(b, result)
require.NoError(t, err)
assert.Equal(t, uint64(0), account.Balance)
require.Len(t, account.Keys, 2)
assert.Equal(t, accountKeyA.PublicKey.Encode(), account.Keys[0].PublicKey.Encode())
assert.Equal(t, accountKeyB.PublicKey.Encode(), account.Keys[1].PublicKey.Encode())
assert.Empty(t, account.Contracts)
})
t.Run("Public keys and contract", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
accountKeyA := accountKeys.New()
accountKeyB := accountKeys.New()
contracts := []templates.Contract{
{
Name: "Test",
Source: testContract,
},
}
tx := templates.CreateAccount(
[]*flow.AccountKey{accountKeyA, accountKeyB},
contracts,
b.ServiceKey().Address,
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
require.NoError(t, err)
result, err := b.ExecuteNextTransaction()
require.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err := lastCreatedAccount(b, result)
require.NoError(t, err)
assert.Equal(t, uint64(0), account.Balance)
require.Len(t, account.Keys, 2)
assert.Equal(t, accountKeyA.PublicKey.Encode(), account.Keys[0].PublicKey.Encode())
assert.Equal(t, accountKeyB.PublicKey.Encode(), account.Keys[1].PublicKey.Encode())
assert.Equal(t,
map[string][]byte{
"Test": []byte(testContract),
},
account.Contracts,
)
})
t.Run("Public keys and two contracts", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
codeA := `
pub contract Test1 {
pub fun a(): Int {
return 1
}
}
`
codeB := `
pub contract Test2 {
pub fun b(): Int {
return 2
}
}
`
accountKey := accountKeys.New()
contracts := []templates.Contract{
{
Name: "Test1",
Source: codeA,
},
{
Name: "Test2",
Source: codeB,
},
}
tx := templates.CreateAccount(
[]*flow.AccountKey{accountKey},
contracts,
b.ServiceKey().Address,
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
require.NoError(t, err)
result, err := b.ExecuteNextTransaction()
require.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err := lastCreatedAccount(b, result)
require.NoError(t, err)
assert.Equal(t, uint64(0), account.Balance)
require.Len(t, account.Keys, 1)
assert.Equal(t, accountKey.PublicKey.Encode(), account.Keys[0].PublicKey.Encode())
assert.Equal(t,
map[string][]byte{
"Test1": []byte(codeA),
"Test2": []byte(codeB),
},
account.Contracts,
)
})
t.Run("Code and no keys", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
contracts := []templates.Contract{
{
Name: "Test",
Source: testContract,
},
}
tx := templates.CreateAccount(
nil,
contracts,
b.ServiceKey().Address,
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
assert.NoError(t, err)
result, err := b.ExecuteNextTransaction()
require.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err := lastCreatedAccount(b, result)
require.NoError(t, err)
assert.Equal(t, uint64(0), account.Balance)
assert.Empty(t, account.Keys)
assert.Equal(t,
map[string][]byte{
"Test": []byte(testContract),
},
account.Contracts,
)
})
t.Run("Event emitted", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
accountKey := accountKeys.New()
contracts := []templates.Contract{
{
Name: "Test",
Source: testContract,
},
}
tx := templates.CreateAccount(
[]*flow.AccountKey{accountKey},
contracts,
b.ServiceKey().Address,
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
assert.NoError(t, err)
result, err := b.ExecuteNextTransaction()
require.NoError(t, err)
assertTransactionSucceeded(t, result)
block, err := b.CommitBlock()
require.NoError(t, err)
events, err := b.GetEventsByHeight(block.Header.Height, flow.EventAccountCreated)
require.NoError(t, err)
require.Len(t, events, 1)
accountEvent := flow.AccountCreatedEvent(events[0])
account, err := b.GetAccount(accountEvent.Address())
assert.NoError(t, err)
assert.Equal(t, uint64(0), account.Balance)
require.Len(t, account.Keys, 1)
assert.Equal(t, accountKey.PublicKey, account.Keys[0].PublicKey)
assert.Equal(t,
map[string][]byte{
"Test": []byte(testContract),
},
account.Contracts,
)
})
t.Run("Invalid hash algorithm", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
accountKey := accountKeys.New()
accountKey.SetHashAlgo(crypto.SHA3_384) // SHA3_384 is invalid for ECDSA_P256
tx := templates.CreateAccount(
[]*flow.AccountKey{accountKey},
nil,
b.ServiceKey().Address,
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
assert.NoError(t, err)
result, err := b.ExecuteNextTransaction()
require.NoError(t, err)
assert.True(t, result.Reverted())
})
t.Run("Invalid code", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
contracts := []templates.Contract{
{
Name: "Test",
Source: "not a valid script",
},
}
tx := templates.CreateAccount(
nil,
contracts,
b.ServiceKey().Address,
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
assert.NoError(t, err)
result, err := b.ExecuteNextTransaction()
require.NoError(t, err)
assert.True(t, result.Reverted())
})
t.Run("Invalid contract name", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
contracts := []templates.Contract{
{
Name: "Test2",
Source: testContract,
},
}
tx := templates.CreateAccount(
nil,
contracts,
b.ServiceKey().Address,
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
assert.NoError(t, err)
result, err := b.ExecuteNextTransaction()
require.NoError(t, err)
assert.True(t, result.Reverted())
})
}
func TestAddAccountKey(t *testing.T) {
t.Parallel()
accountKeys := test.AccountKeyGenerator()
t.Run("Valid key", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
newAccountKey, newSigner := accountKeys.NewWithSigner()
tx1 := templates.AddAccountKey(b.ServiceKey().Address, newAccountKey)
tx1.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx1.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx1)
assert.NoError(t, err)
result, err := b.ExecuteNextTransaction()
assert.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
script := []byte("transaction { execute {} }")
var newKeyID = 1 // new key with have ID 1
var newKeySequenceNum uint64 = 0
tx2 := flow.NewTransaction().
SetScript(script).
SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, newKeyID, newKeySequenceNum).
SetPayer(b.ServiceKey().Address)
err = tx2.SignEnvelope(b.ServiceKey().Address, newKeyID, newSigner)
assert.NoError(t, err)
err = b.AddTransaction(*tx2)
require.NoError(t, err)
result, err = b.ExecuteNextTransaction()
require.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
})
t.Run("Invalid hash algorithm", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
accountKey := accountKeys.New()
accountKey.SetHashAlgo(crypto.SHA3_384) // SHA3_384 is invalid for ECDSA_P256
tx := templates.AddAccountKey(b.ServiceKey().Address, accountKey)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
assert.NoError(t, err)
result, err := b.ExecuteNextTransaction()
assert.NoError(t, err)
assert.True(t, result.Reverted())
})
}
func TestRemoveAccountKey(t *testing.T) {
t.Parallel()
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
accountKeys := test.AccountKeyGenerator()
newAccountKey, newSigner := accountKeys.NewWithSigner()
// create transaction that adds public key to account keys
tx1 := templates.AddAccountKey(b.ServiceKey().Address, newAccountKey)
assert.NoError(t, err)
// create transaction that adds public key to account keys
tx1.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
// sign with service key
err = tx1.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
// submit tx1 (should succeed)
err = b.AddTransaction(*tx1)
assert.NoError(t, err)
result, err := b.ExecuteNextTransaction()
assert.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err := b.GetAccount(b.ServiceKey().Address)
assert.NoError(t, err)
require.Len(t, account.Keys, 2)
assert.False(t, account.Keys[0].Revoked)
assert.False(t, account.Keys[1].Revoked)
// create transaction that removes service key
tx2 := templates.RemoveAccountKey(b.ServiceKey().Address, 0)
tx2.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
// sign with service key
err = tx2.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
// submit tx2 (should succeed)
err = b.AddTransaction(*tx2)
assert.NoError(t, err)
result, err = b.ExecuteNextTransaction()
assert.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err = b.GetAccount(b.ServiceKey().Address)
assert.NoError(t, err)
// key at index 0 should be revoked
require.Len(t, account.Keys, 2)
assert.True(t, account.Keys[0].Revoked)
assert.False(t, account.Keys[1].Revoked)
// create transaction that removes remaining account key
tx3 := templates.RemoveAccountKey(b.ServiceKey().Address, 0)
tx3.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
// sign with service key (that has been removed)
err = tx3.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
// submit tx3 (should fail)
err = b.AddTransaction(*tx3)
assert.NoError(t, err)
result, err = b.ExecuteNextTransaction()
assert.NoError(t, err)
var sigErr *fvmerrors.InvalidProposalSignatureError
assert.True(t, errors.As(result.Error, &sigErr))
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err = b.GetAccount(b.ServiceKey().Address)
assert.NoError(t, err)
// key at index 1 should not be revoked
require.Len(t, account.Keys, 2)
assert.True(t, account.Keys[0].Revoked)
assert.False(t, account.Keys[1].Revoked)
// create transaction that removes remaining account key
tx4 := templates.RemoveAccountKey(b.ServiceKey().Address, 1)
tx4.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, account.Keys[1].Index, account.Keys[1].SequenceNumber).
SetPayer(b.ServiceKey().Address)
// sign with remaining account key
err = tx4.SignEnvelope(b.ServiceKey().Address, account.Keys[1].Index, newSigner)
assert.NoError(t, err)
// submit tx4 (should succeed)
err = b.AddTransaction(*tx4)
assert.NoError(t, err)
result, err = b.ExecuteNextTransaction()
assert.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err = b.GetAccount(b.ServiceKey().Address)
assert.NoError(t, err)
// all keys should be revoked
for _, key := range account.Keys {
assert.True(t, key.Revoked)
}
}
func TestUpdateAccountCode(t *testing.T) {
t.Parallel()
const codeA = `
pub contract Test {
pub fun a(): Int {
return 1
}
}
`
const codeB = `
pub contract Test {
pub fun b(): Int {
return 2
}
}
`
accountKeys := test.AccountKeyGenerator()
accountKeyB, signerB := accountKeys.NewWithSigner()
t.Run("Valid signature", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
contracts := []templates.Contract{
{
Name: "Test",
Source: codeA,
},
}
accountAddressB, err := b.CreateAccount(
[]*flow.AccountKey{accountKeyB},
contracts,
)
require.NoError(t, err)
account, err := b.GetAccount(accountAddressB)
require.NoError(t, err)
assert.Equal(t,
map[string][]byte{
"Test": []byte(codeA),
},
account.Contracts,
)
tx := templates.UpdateAccountContract(
accountAddressB,
templates.Contract{
Name: "Test",
Source: codeB,
},
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignPayload(accountAddressB, 0, signerB)
assert.NoError(t, err)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
require.NoError(t, err)
result, err := b.ExecuteNextTransaction()
require.NoError(t, err)
assertTransactionSucceeded(t, result)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err = b.GetAccount(accountAddressB)
assert.NoError(t, err)
assert.Equal(t, codeB, string(account.Contracts["Test"]))
})
t.Run("Invalid signature", func(t *testing.T) {
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
contracts := []templates.Contract{
{
Name: "Test",
Source: codeA,
},
}
accountAddressB, err := b.CreateAccount(
[]*flow.AccountKey{accountKeyB},
contracts,
)
require.NoError(t, err)
account, err := b.GetAccount(accountAddressB)
require.NoError(t, err)
assert.Equal(t, codeA, string(account.Contracts["Test"]))
tx := templates.UpdateAccountContract(
accountAddressB,
templates.Contract{
Name: "Test",
Source: codeB,
},
)
tx.SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
assert.NoError(t, err)
result, err := b.ExecuteNextTransaction()
assert.NoError(t, err)
unittest.AssertFVMErrorType(t, &fvmerrors.AccountAuthorizationError{}, result.Error)
_, err = b.CommitBlock()
assert.NoError(t, err)
account, err = b.GetAccount(accountAddressB)
assert.NoError(t, err)
// code should not be updated
assert.Equal(t, codeA, string(account.Contracts["Test"]))
})
}
func TestImportAccountCode(t *testing.T) {
t.Parallel()
b, err := emulator.NewBlockchain(
emulator.WithStorageLimitEnabled(false),
)
require.NoError(t, err)
accountContracts := []templates.Contract{
{
Name: "Computer",
Source: `
pub contract Computer {
pub fun answer(): Int {
return 42
}
}
`,
},
}
address, err := b.CreateAccount(nil, accountContracts)
assert.NoError(t, err)
script := []byte(fmt.Sprintf(`
// address imports can omit leading zeros
import 0x%s
transaction {
execute {
let answer = Computer.answer()
if answer != 42 {
panic("?!")
}
}
}
`, address))
tx := flow.NewTransaction().
SetScript(script).
SetGasLimit(flowgo.DefaultMaxTransactionGasLimit).
SetProposalKey(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().SequenceNumber).
SetPayer(b.ServiceKey().Address)
err = tx.SignEnvelope(b.ServiceKey().Address, b.ServiceKey().Index, b.ServiceKey().Signer())
assert.NoError(t, err)
err = b.AddTransaction(*tx)
assert.NoError(t, err)
result, err := b.ExecuteNextTransaction()
assert.NoError(t, err)
assertTransactionSucceeded(t, result)
}
func TestAccountAccess(t *testing.T) {
t.Parallel()