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

// Copyright 2018 Vulcanize
//
// 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 integration_tests

import (
	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"

	"github.com/ethereum/go-ethereum/accounts/abi/bind"
	"github.com/ethereum/go-ethereum/common"

	"github.com/vulcanize/vulcanizedb/pkg/geth"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/bite"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/factories"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared/constants"
	"github.com/vulcanize/vulcanizedb/pkg/transformers/test_data"
	"github.com/vulcanize/vulcanizedb/test_config"
)

var testBiteConfig = shared.TransformerConfig{
	TransformerName:     constants.BiteLabel,
	ContractAddresses:   []string{test_data.KovanCatContractAddress},
	ContractAbi:         test_data.KovanCatABI,
	Topic:               test_data.KovanBiteSignature,
	StartingBlockNumber: 0,
	EndingBlockNumber:   -1,
}

var _ = Describe("Bite Transformer", func() {
	It("fetches and transforms a Bite event from Kovan chain", func() {
		blockNumber := int64(8956422)
		config := testBiteConfig
		config.StartingBlockNumber = blockNumber
		config.EndingBlockNumber = blockNumber

		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)

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

		initializer := factories.Transformer{
			Config:     config,
			Converter:  &bite.BiteConverter{},
			Repository: &bite.BiteRepository{},
		}
		transformer := initializer.NewTransformer(db)

		fetcher := shared.NewFetcher(blockChain)
		logs, err := fetcher.FetchLogs(
			[]common.Address{common.HexToAddress(config.ContractAddresses[0])},
			[]common.Hash{common.HexToHash(config.Topic)},
			header)
		Expect(err).NotTo(HaveOccurred())

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

		var dbResult []bite.BiteModel
		err = db.Select(&dbResult, `SELECT art, iart, ilk, ink, nflip, tab, urn from maker.bite`)
		Expect(err).NotTo(HaveOccurred())

		Expect(len(dbResult)).To(Equal(1))
		Expect(dbResult[0].Art).To(Equal("149846666666666655744"))
		Expect(dbResult[0].IArt).To(Equal("1645356666666666655736"))
		Expect(dbResult[0].Ilk).To(Equal("ETH"))
		Expect(dbResult[0].Ink).To(Equal("1000000000000000000"))
		Expect(dbResult[0].NFlip).To(Equal("2"))
		Expect(dbResult[0].Tab).To(Equal("149846666666666655744"))
		Expect(dbResult[0].Urn).To(Equal("0x0000d8b4147eDa80Fec7122AE16DA2479Cbd7ffB"))
	})

	It("unpacks an event log", func() {
		address := common.HexToAddress(test_data.KovanCatContractAddress)
		abi, err := geth.ParseAbi(test_data.KovanCatABI)
		Expect(err).NotTo(HaveOccurred())

		contract := bind.NewBoundContract(address, abi, nil, nil, nil)
		entity := &bite.BiteEntity{}

		var eventLog = test_data.EthBiteLog

		err = contract.UnpackLog(entity, "Bite", eventLog)
		Expect(err).NotTo(HaveOccurred())

		expectedEntity := test_data.BiteEntity
		Expect(entity.Art).To(Equal(expectedEntity.Art))
		Expect(entity.Ilk).To(Equal(expectedEntity.Ilk))
		Expect(entity.Ink).To(Equal(expectedEntity.Ink))
	})
})