227 lines
6.6 KiB
Go
227 lines
6.6 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 parser_test
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import (
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"github.com/ethereum/go-ethereum/accounts/abi"
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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/shared/constants"
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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/types"
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"github.com/vulcanize/vulcanizedb/pkg/eth"
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)
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var _ = Describe("Parser", func() {
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var p parser.Parser
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var err error
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BeforeEach(func() {
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p = parser.NewParser("")
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})
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Describe("Mock Parse", func() {
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It("Uses parses given abi string", func() {
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mp := mocks.NewParser(constants.DaiAbiString)
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err = mp.Parse(constants.DaiContractAddress)
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Expect(err).ToNot(HaveOccurred())
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parsedAbi := mp.ParsedAbi()
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expectedAbi, err := eth.ParseAbi(constants.DaiAbiString)
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Expect(err).ToNot(HaveOccurred())
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Expect(parsedAbi).To(Equal(expectedAbi))
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methods := mp.GetSelectMethods([]string{"balanceOf"})
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Expect(len(methods)).To(Equal(1))
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balOf := methods[0]
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Expect(balOf.Name).To(Equal("balanceOf"))
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Expect(len(balOf.Args)).To(Equal(1))
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Expect(len(balOf.Return)).To(Equal(1))
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events := mp.GetEvents([]string{"Transfer"})
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_, ok := events["Mint"]
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Expect(ok).To(Equal(false))
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e, ok := events["Transfer"]
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Expect(ok).To(Equal(true))
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Expect(len(e.Fields)).To(Equal(3))
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})
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})
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Describe("Parse", func() {
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It("Fetches and parses abi from etherscan using contract address", func() {
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contractAddr := "0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359" // dai contract address
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err = p.Parse(contractAddr)
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Expect(err).ToNot(HaveOccurred())
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expectedAbi := constants.DaiAbiString
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Expect(p.Abi()).To(Equal(expectedAbi))
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expectedParsedAbi, err := eth.ParseAbi(expectedAbi)
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Expect(err).ToNot(HaveOccurred())
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Expect(p.ParsedAbi()).To(Equal(expectedParsedAbi))
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})
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It("Fails with a normal, non-contract, account address", func() {
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addr := "0xAb2A8F7cB56D9EC65573BA1bE0f92Fa2Ff7dd165"
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err = p.Parse(addr)
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Expect(err).To(HaveOccurred())
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})
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})
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Describe("GetEvents", func() {
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It("Returns parsed events", func() {
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contractAddr := "0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359"
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err = p.Parse(contractAddr)
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Expect(err).ToNot(HaveOccurred())
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events := p.GetEvents([]string{"Transfer"})
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e, ok := events["Transfer"]
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Expect(ok).To(Equal(true))
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abiTy := e.Fields[0].Type.T
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Expect(abiTy).To(Equal(abi.AddressTy))
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pgTy := e.Fields[0].PgType
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Expect(pgTy).To(Equal("CHARACTER VARYING(66)"))
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abiTy = e.Fields[1].Type.T
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Expect(abiTy).To(Equal(abi.AddressTy))
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pgTy = e.Fields[1].PgType
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Expect(pgTy).To(Equal("CHARACTER VARYING(66)"))
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abiTy = e.Fields[2].Type.T
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Expect(abiTy).To(Equal(abi.UintTy))
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pgTy = e.Fields[2].PgType
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Expect(pgTy).To(Equal("NUMERIC"))
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_, ok = events["Approval"]
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Expect(ok).To(Equal(false))
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})
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})
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Describe("GetSelectMethods", func() {
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It("Parses and returns only methods specified in passed array", func() {
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contractAddr := "0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359"
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err = p.Parse(contractAddr)
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Expect(err).ToNot(HaveOccurred())
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methods := p.GetSelectMethods([]string{"balanceOf"})
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Expect(len(methods)).To(Equal(1))
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balOf := methods[0]
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Expect(balOf.Name).To(Equal("balanceOf"))
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Expect(len(balOf.Args)).To(Equal(1))
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Expect(len(balOf.Return)).To(Equal(1))
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abiTy := balOf.Args[0].Type.T
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Expect(abiTy).To(Equal(abi.AddressTy))
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pgTy := balOf.Args[0].PgType
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Expect(pgTy).To(Equal("CHARACTER VARYING(66)"))
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abiTy = balOf.Return[0].Type.T
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Expect(abiTy).To(Equal(abi.UintTy))
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pgTy = balOf.Return[0].PgType
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Expect(pgTy).To(Equal("NUMERIC"))
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})
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It("Parses and returns methods in the order they were specified", func() {
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contractAddr := "0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359"
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err = p.Parse(contractAddr)
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Expect(err).ToNot(HaveOccurred())
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selectMethods := p.GetSelectMethods([]string{"balanceOf", "allowance"})
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Expect(len(selectMethods)).To(Equal(2))
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balOf := selectMethods[0]
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allow := selectMethods[1]
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Expect(balOf.Name).To(Equal("balanceOf"))
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Expect(allow.Name).To(Equal("allowance"))
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})
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It("Returns nil if given a nil or empty array", func() {
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contractAddr := "0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359"
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err = p.Parse(contractAddr)
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Expect(err).ToNot(HaveOccurred())
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var nilArr []types.Method
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selectMethods := p.GetSelectMethods([]string{})
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Expect(selectMethods).To(Equal(nilArr))
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selectMethods = p.GetMethods(nil)
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Expect(selectMethods).To(Equal(nilArr))
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})
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})
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Describe("GetMethods", func() {
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It("Parses and returns only methods specified in passed array", func() {
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contractAddr := "0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359"
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err = p.Parse(contractAddr)
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Expect(err).ToNot(HaveOccurred())
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methods := p.GetMethods([]string{"balanceOf"})
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Expect(len(methods)).To(Equal(1))
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balOf := methods[0]
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Expect(balOf.Name).To(Equal("balanceOf"))
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Expect(len(balOf.Args)).To(Equal(1))
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Expect(len(balOf.Return)).To(Equal(1))
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abiTy := balOf.Args[0].Type.T
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Expect(abiTy).To(Equal(abi.AddressTy))
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pgTy := balOf.Args[0].PgType
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Expect(pgTy).To(Equal("CHARACTER VARYING(66)"))
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abiTy = balOf.Return[0].Type.T
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Expect(abiTy).To(Equal(abi.UintTy))
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pgTy = balOf.Return[0].PgType
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Expect(pgTy).To(Equal("NUMERIC"))
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})
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It("Returns nil if given a nil array", func() {
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contractAddr := "0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359"
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err = p.Parse(contractAddr)
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Expect(err).ToNot(HaveOccurred())
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var nilArr []types.Method
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selectMethods := p.GetMethods(nil)
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Expect(selectMethods).To(Equal(nilArr))
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})
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It("Returns every method if given an empty array", func() {
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contractAddr := "0x89d24a6b4ccb1b6faa2625fe562bdd9a23260359"
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err = p.Parse(contractAddr)
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Expect(err).ToNot(HaveOccurred())
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selectMethods := p.GetMethods([]string{})
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Expect(len(selectMethods)).To(Equal(25))
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})
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})
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})
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