2800e6df36
- Previous setup would fail if there were no headers in the db. This makes sense because we need headers that haven't been checked for logs to exist so that we can fetch logs for those headers. But it also prevents us from kicking off the headerSync and contractWatcher processes concurrently. These changes enable kicking off both processes at the same time with the idea that we will have unchecked headers upon transformer execution.
138 lines
4.4 KiB
Go
138 lines
4.4 KiB
Go
// VulcanizeDB
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// Copyright © 2019 Vulcanize
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package transformer_test
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import (
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"database/sql"
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. "github.com/onsi/ginkgo"
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. "github.com/onsi/gomega"
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"github.com/vulcanize/vulcanizedb/pkg/contract_watcher/header/retriever"
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"github.com/vulcanize/vulcanizedb/pkg/contract_watcher/header/transformer"
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"github.com/vulcanize/vulcanizedb/pkg/contract_watcher/shared/contract"
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"github.com/vulcanize/vulcanizedb/pkg/contract_watcher/shared/helpers/test_helpers/mocks"
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"github.com/vulcanize/vulcanizedb/pkg/contract_watcher/shared/parser"
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"github.com/vulcanize/vulcanizedb/pkg/contract_watcher/shared/poller"
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"github.com/vulcanize/vulcanizedb/pkg/fakes"
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)
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var _ = Describe("Transformer", func() {
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var fakeAddress = "0x1234567890abcdef"
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Describe("Init", func() {
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It("Initializes transformer's contract objects", func() {
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blockRetriever := &fakes.MockHeaderSyncBlockRetriever{}
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firstBlock := int64(1)
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blockRetriever.FirstBlock = firstBlock
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parsr := &fakes.MockParser{}
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fakeAbi := "fake_abi"
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parsr.AbiToReturn = fakeAbi
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pollr := &fakes.MockPoller{}
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fakeContractName := "fake_contract_name"
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pollr.ContractName = fakeContractName
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t := getFakeTransformer(blockRetriever, parsr, pollr)
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err := t.Init()
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Expect(err).ToNot(HaveOccurred())
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c, ok := t.Contracts[fakeAddress]
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Expect(ok).To(Equal(true))
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Expect(c.StartingBlock).To(Equal(firstBlock))
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Expect(c.Abi).To(Equal(fakeAbi))
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Expect(c.Name).To(Equal(fakeContractName))
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Expect(c.Address).To(Equal(fakeAddress))
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})
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It("Fails to initialize if first block cannot be fetched from vDB headers table", func() {
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blockRetriever := &fakes.MockHeaderSyncBlockRetriever{}
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blockRetriever.FirstBlockErr = fakes.FakeError
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t := getFakeTransformer(blockRetriever, &fakes.MockParser{}, &fakes.MockPoller{})
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err := t.Init()
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Expect(err).To(HaveOccurred())
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Expect(err.Error()).To(ContainSubstring(fakes.FakeError.Error()))
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})
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})
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Describe("Execute", func() {
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It("Executes contract transformations", func() {
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blockRetriever := &fakes.MockHeaderSyncBlockRetriever{}
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firstBlock := int64(1)
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blockRetriever.FirstBlock = firstBlock
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parsr := &fakes.MockParser{}
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fakeAbi := "fake_abi"
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parsr.AbiToReturn = fakeAbi
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pollr := &fakes.MockPoller{}
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fakeContractName := "fake_contract_name"
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pollr.ContractName = fakeContractName
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t := getFakeTransformer(blockRetriever, parsr, pollr)
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err := t.Init()
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Expect(err).ToNot(HaveOccurred())
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c, ok := t.Contracts[fakeAddress]
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Expect(ok).To(Equal(true))
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Expect(c.StartingBlock).To(Equal(firstBlock))
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Expect(c.Abi).To(Equal(fakeAbi))
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Expect(c.Name).To(Equal(fakeContractName))
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Expect(c.Address).To(Equal(fakeAddress))
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})
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It("uses first block from config if vDB headers table has no rows", func() {
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blockRetriever := &fakes.MockHeaderSyncBlockRetriever{}
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blockRetriever.FirstBlockErr = sql.ErrNoRows
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t := getFakeTransformer(blockRetriever, &fakes.MockParser{}, &fakes.MockPoller{})
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err := t.Init()
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Expect(err).ToNot(HaveOccurred())
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})
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It("returns error if fetching first block fails for other reason", func() {
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blockRetriever := &fakes.MockHeaderSyncBlockRetriever{}
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blockRetriever.FirstBlockErr = fakes.FakeError
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t := getFakeTransformer(blockRetriever, &fakes.MockParser{}, &fakes.MockPoller{})
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err := t.Init()
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Expect(err).To(HaveOccurred())
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Expect(err.Error()).To(ContainSubstring(fakes.FakeError.Error()))
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})
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})
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})
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func getFakeTransformer(blockRetriever retriever.BlockRetriever, parsr parser.Parser, pollr poller.Poller) transformer.Transformer {
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return transformer.Transformer{
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Parser: parsr,
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Retriever: blockRetriever,
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Poller: pollr,
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HeaderRepository: &fakes.MockHeaderSyncHeaderRepository{},
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Contracts: map[string]*contract.Contract{},
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Config: mocks.MockConfig,
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}
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}
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