Add Vat fold integration test

pkg/transformers/integration_tests/vat_fold.go

@@ -0,0 +1,59 @@
+// 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/ethereum/go-ethereum/common"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+
+	"github.com/vulcanize/vulcanizedb/pkg/transformers/vat_fold"
+	"github.com/vulcanize/vulcanizedb/test_config"
+)
+
+var _ = Describe("VatFold Transformer", func() {
+	It("transforms VatFold log events", func() {
+		blockNumber := int64(9051149)
+		config := vat_fold.VatFoldConfig
+		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)
+
+		err = persistHeader(rpcClient, db, blockNumber)
+		Expect(err).NotTo(HaveOccurred())
+
+		initializer := vat_fold.VatFoldTransformerInitializer{Config: config}
+		transformer := initializer.NewVatFoldTransformer(db, blockchain)
+		err = transformer.Execute()
+		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"))
+	})
+})

pkg/transformers/vat_fold/converter.go

@@ -18,8 +18,6 @@ import (
 	"bytes"
 	"encoding/json"
 	"errors"
-	"math/big"
-
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/vulcanize/vulcanizedb/pkg/transformers/shared"
@@ -41,7 +39,7 @@ func (VatFoldConverter) ToModels(ethLogs []types.Log) ([]VatFoldModel, error) {
 
 		ilk := string(bytes.Trim(ethLog.Topics[1].Bytes(), "\x00"))
 		urn := common.BytesToAddress(ethLog.Topics[2].Bytes()).String()
-		rate := big.NewInt(0).SetBytes(ethLog.Topics[3].Bytes()).String()
+		rate := ethLog.Topics[3].Big().String()
 		raw, err := json.Marshal(ethLog)
 
 		if err != nil {