ipld-eth-server/pkg/contract_watcher/light/fetcher/fetcher_test.go
2019-03-21 18:33:56 -05:00

67 lines
2.3 KiB
Go

// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package fetcher_test
import (
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/vulcanize/vulcanizedb/pkg/contract_watcher/light/fetcher"
"github.com/vulcanize/vulcanizedb/pkg/core"
"github.com/vulcanize/vulcanizedb/pkg/fakes"
)
var _ = Describe("Fetcher", func() {
Describe("FetchLogs", func() {
It("fetches logs based on the given query", func() {
blockChain := fakes.NewMockBlockChain()
fetcher := fetcher.NewFetcher(blockChain)
header := fakes.FakeHeader
addresses := []string{"0xfakeAddress", "0xanotherFakeAddress"}
topicZeros := [][]common.Hash{{common.BytesToHash([]byte{1, 2, 3, 4, 5})}}
_, err := fetcher.FetchLogs(addresses, []common.Hash{common.BytesToHash([]byte{1, 2, 3, 4, 5})}, header)
address1 := common.HexToAddress("0xfakeAddress")
address2 := common.HexToAddress("0xanotherFakeAddress")
Expect(err).NotTo(HaveOccurred())
blockHash := common.HexToHash(header.Hash)
expectedQuery := ethereum.FilterQuery{
BlockHash: &blockHash,
Addresses: []common.Address{address1, address2},
Topics: topicZeros,
}
blockChain.AssertGetEthLogsWithCustomQueryCalledWith(expectedQuery)
})
It("returns an error if fetching the logs fails", func() {
blockChain := fakes.NewMockBlockChain()
blockChain.SetGetEthLogsWithCustomQueryErr(fakes.FakeError)
fetcher := fetcher.NewFetcher(blockChain)
_, err := fetcher.FetchLogs([]string{}, []common.Hash{}, core.Header{})
Expect(err).To(HaveOccurred())
Expect(err).To(MatchError(fakes.FakeError))
})
})
})