ipld-eth-server/pkg/eth/abi_test.go

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// VulcanizeDB
// Copyright © 2019 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 eth_test
import (
"net/http"
"fmt"
"github.com/ethereum/go-ethereum/accounts/abi"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/onsi/gomega/ghttp"
"github.com/vulcanize/vulcanizedb/pkg/eth"
"github.com/vulcanize/vulcanizedb/test_config"
)
var _ = Describe("ABI files", func() {
Describe("Reading ABI files", func() {
It("loads a valid ABI file", func() {
path := test_config.ABIFilePath + "valid_abi.json"
contractAbi, err := eth.ParseAbiFile(path)
Expect(contractAbi).NotTo(BeNil())
Expect(err).To(BeNil())
})
It("reads the contents of a valid ABI file", func() {
path := test_config.ABIFilePath + "valid_abi.json"
contractAbi, err := eth.ReadAbiFile(path)
Expect(contractAbi).To(Equal("[{\"foo\": \"bar\"}]"))
Expect(err).To(BeNil())
})
It("returns an error when the file does not exist", func() {
path := test_config.ABIFilePath + "missing_abi.json"
contractAbi, err := eth.ParseAbiFile(path)
Expect(contractAbi).To(Equal(abi.ABI{}))
Expect(err).To(Equal(eth.ErrMissingAbiFile))
})
It("returns an error when the file has invalid contents", func() {
path := test_config.ABIFilePath + "invalid_abi.json"
contractAbi, err := eth.ParseAbiFile(path)
Expect(contractAbi).To(Equal(abi.ABI{}))
Expect(err).To(Equal(eth.ErrInvalidAbiFile))
})
Describe("Request ABI from endpoint", func() {
var (
server *ghttp.Server
client *eth.EtherScanAPI
abiString string
err error
)
BeforeEach(func() {
server = ghttp.NewServer()
client = eth.NewEtherScanClient(server.URL())
path := test_config.ABIFilePath + "sample_abi.json"
abiString, err = eth.ReadAbiFile(path)
Expect(err).NotTo(HaveOccurred())
_, err = eth.ParseAbi(abiString)
Expect(err).NotTo(HaveOccurred())
})
AfterEach(func() {
server.Close()
})
Describe("Fetching ABI from api (etherscan)", func() {
BeforeEach(func() {
response := fmt.Sprintf(`{"status":"1","message":"OK","result":%q}`, abiString)
server.AppendHandlers(
ghttp.CombineHandlers(
ghttp.VerifyRequest("GET", "/api", "module=contract&action=getabi&address=0xd26114cd6EE289AccF82350c8d8487fedB8A0C07"),
ghttp.RespondWith(http.StatusOK, response),
),
)
})
It("should make a GET request with supplied contract hash", func() {
abi, err := client.GetAbi("0xd26114cd6EE289AccF82350c8d8487fedB8A0C07")
Expect(server.ReceivedRequests()).Should(HaveLen(1))
Expect(err).ShouldNot(HaveOccurred())
Expect(abi).Should(Equal(abiString))
})
})
})
Describe("Generating etherscan endpoints based on network", func() {
It("should return the main endpoint as the default", func() {
url := eth.GenURL("")
Expect(url).To(Equal("https://api.etherscan.io"))
})
It("generates various test network endpoint if test network is supplied", func() {
ropstenUrl := eth.GenURL("ropsten")
rinkebyUrl := eth.GenURL("rinkeby")
kovanUrl := eth.GenURL("kovan")
Expect(ropstenUrl).To(Equal("https://ropsten.etherscan.io"))
Expect(kovanUrl).To(Equal("https://kovan.etherscan.io"))
Expect(rinkebyUrl).To(Equal("https://rinkeby.etherscan.io"))
})
})
})
})