65 lines
2.3 KiB
Go
65 lines
2.3 KiB
Go
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// Copyright © 2018 Vulcanize
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package price_feeds_test
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import (
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"math/big"
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"github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/core/types"
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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/fakes"
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"github.com/vulcanize/vulcanizedb/pkg/transformers/price_feeds"
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)
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var _ = Describe("Price fetcher", func() {
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It("gets log value events from price feed medianizers", func() {
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mockBlockChain := fakes.NewMockBlockChain()
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mockBlockChain.SetGetEthLogsWithCustomQueryReturnLogs([]types.Log{{}})
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contractAddresses := []string{"pep-contract-address", "pip-contract-address", "rep-contract-address"}
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fetcher := price_feeds.NewPriceFeedFetcher(mockBlockChain, contractAddresses)
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blockNumber := int64(100)
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_, err := fetcher.FetchLogValues(blockNumber)
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Expect(err).NotTo(HaveOccurred())
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var expectedAddresses []common.Address
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for _, address := range contractAddresses {
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expectedAddresses = append(expectedAddresses, common.HexToAddress(address))
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}
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expectedQuery := ethereum.FilterQuery{
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FromBlock: big.NewInt(blockNumber),
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ToBlock: big.NewInt(blockNumber),
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Addresses: expectedAddresses,
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Topics: [][]common.Hash{{common.HexToHash(price_feeds.LogValueTopic0)}},
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}
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mockBlockChain.AssertGetEthLogsWithCustomQueryCalledWith(expectedQuery)
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})
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It("returns error if getting logs fails", func() {
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mockBlockChain := fakes.NewMockBlockChain()
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mockBlockChain.SetGetEthLogsWithCustomQueryErr(fakes.FakeError)
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fetcher := price_feeds.NewPriceFeedFetcher(mockBlockChain, []string{"contract-address"})
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_, err := fetcher.FetchLogValues(100)
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Expect(err).To(HaveOccurred())
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Expect(err).To(MatchError(fakes.FakeError))
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})
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})
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