ipld-eth-server/pkg/transformers/integration_tests/vat_fold.go

// VulcanizeDB
// Copyright © 2018 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 integration_tests

import (
	"github.com/ethereum/go-ethereum/common"
	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
	"github.com/vulcanize/vulcanizedb/pkg/core"
	"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared/constants"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/test_data"
	"github.com/vulcanize/vulcanizedb/test_config"

	"github.com/vulcanize/vulcanizedb/pkg/transformers/factories"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/vat_fold"
)

var _ = Describe("VatFold Transformer", func() {
	var (
		db         *postgres.DB
		blockChain core.BlockChain
	)

	BeforeEach(func() {
		rpcClient, ethClient, err := getClients(ipc)
		Expect(err).NotTo(HaveOccurred())
		blockChain, err = getBlockChain(rpcClient, ethClient)
		Expect(err).NotTo(HaveOccurred())
		db = test_config.NewTestDB(blockChain.Node())
		test_config.CleanTestDB(db)
	})

	It("transforms VatFold log events", func() {
		blockNumber := int64(9367233)
		config := shared.TransformerConfig{
			TransformerName:     constants.VatFoldLabel,
			ContractAddresses:   []string{test_data.KovanVatContractAddress},
			ContractAbi:         test_data.KovanVatABI,
			Topic:               test_data.KovanVatFoldSignature,
			StartingBlockNumber: blockNumber,
			EndingBlockNumber:   blockNumber,
		}

		header, err := persistHeader(db, blockNumber, blockChain)
		Expect(err).NotTo(HaveOccurred())

		fetcher := shared.NewFetcher(blockChain)
		logs, err := fetcher.FetchLogs(
			shared.HexStringsToAddresses(config.ContractAddresses),
			[]common.Hash{common.HexToHash(config.Topic)},
			header)
		Expect(err).NotTo(HaveOccurred())

		transformer := factories.LogNoteTransformer{
			Config:     config,
			Converter:  &vat_fold.VatFoldConverter{},
			Repository: &vat_fold.VatFoldRepository{},
		}.NewLogNoteTransformer(db)

		err = transformer.Execute(logs, header)
		Expect(err).NotTo(HaveOccurred())

		var dbResults []vat_fold.VatFoldModel
		err = db.Select(&dbResults, `SELECT ilk, urn, rate from maker.vat_fold`)
		Expect(err).NotTo(HaveOccurred())

		Expect(len(dbResults)).To(Equal(1))
		dbResult := dbResults[0]
		Expect(dbResult.Ilk).To(Equal("REP"))
		Expect(dbResult.Urn).To(Equal(common.HexToAddress("0x0000000000000000000000003728e9777b2a0a611ee0f89e00e01044ce4736d1").String()))
		Expect(dbResult.Rate).To(Equal("0.000000000000000000000000000"))
	})
})