prysm-pulse/sharding/collator_test.go
Terence Tsao aa5bb73045 fixed travis & preston's feedback
Former-commit-id: 7939967ec2b19ff2dbec2c09d027e68a7c832c32 [formerly 6f7df3d11a74ba4d20ba169cc1ddf5a72f8d28dd]
Former-commit-id: ff4c98fa06880688b7351c24260c9126ab3d1402
2018-03-08 18:05:39 -08:00

120 lines
3.2 KiB
Go

package sharding
import (
"context"
"errors"
"math/big"
"strings"
"testing"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/sharding/contracts"
"github.com/ethereum/go-ethereum/core/types"
)
type FakeCollatorClient struct {
accountAccount *accounts.Account
accountError error
chainReader FakeChainReader
contractCaller FakeContractCaller
}
func (c FakeCollatorClient) Account() *accounts.Account {
return c.accountAccount
}
func (c FakeCollatorClient) ChainReader() ethereum.ChainReader {
return c.chainReader
}
func (c FakeCollatorClient) SMCCaller() *contracts.SMCCaller {
SMCCaller, err := contracts.NewSMCCaller(common.HexToAddress("0x0"), c.contractCaller)
if err != nil {
panic(err)
}
return SMCCaller
}
type FakeChainReader struct {
subscribeNewHeadSubscription ethereum.Subscription
subscribeNewHeadError error
}
func (r FakeChainReader) SubscribeNewHead(ctx context.Context, ch chan<- *types.Header) (ethereum.Subscription, error) {
return r.subscribeNewHeadSubscription, r.subscribeNewHeadError
}
func (r FakeChainReader) BlockByHash(ctx context.Context, hash common.Hash) (*types.Block, error) {
return nil, nil
}
func (r FakeChainReader) BlockByNumber(ctx context.Context, number *big.Int) (*types.Block, error) {
return nil, nil
}
func (r FakeChainReader) HeaderByHash(ctx context.Context, hash common.Hash) (*types.Header, error) {
return nil, nil
}
func (r FakeChainReader) HeaderByNumber(ctx context.Context, number *big.Int) (*types.Header, error) {
return nil, nil
}
func (r FakeChainReader) TransactionCount(ctx context.Context, blockHash common.Hash) (uint, error) {
return 0, nil
}
func (r FakeChainReader) TransactionInBlock(ctx context.Context, blockHash common.Hash, index uint) (*types.Transaction, error) {
return nil, nil
}
type FakeContractCaller struct {
codeAtBytes []byte
codeAtError error
callContractBytes []byte
callContractError error
}
func (c FakeContractCaller) CodeAt(ctx context.Context, contract common.Address, blockNumber *big.Int) ([]byte, error) {
return c.codeAtBytes, c.codeAtError
}
func (c FakeContractCaller) CallContract(ctx context.Context, call ethereum.CallMsg, blockNumber *big.Int) ([]byte, error) {
return c.callContractBytes, c.callContractError
}
func TestCheckSMCForCollator(t *testing.T) {
tests := []struct {
Name string
Head *types.Header
ExpectedPeriod *big.Int
ExpectedError string
CollatorClient FakeCollatorClient
}{
{
Name: "SMCCaller.checkSMCForCollator should return an error",
ExpectedError: "there is no cake",
CollatorClient: FakeCollatorClient{
accountAccount: &accounts.Account{},
contractCaller: FakeContractCaller{
callContractError: errors.New("there is no cake"),
},
},
Head: &types.Header{Number: big.NewInt(100)},
},
}
for _, tt := range tests {
t.Run(tt.Name, func(t *testing.T) {
if err := checkSMCForCollator(tt.CollatorClient, tt.Head); !strings.Contains(safeError(err), tt.ExpectedError) {
t.Fatalf("Incorrect error! Wanted %v, got %v", tt.ExpectedError, err)
}
})
}
}
func safeError(err error) string {
if err != nil {
return err.Error()
}
return "nil"
}