370 lines
11 KiB
Go
370 lines
11 KiB
Go
// 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 mocks
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import (
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"errors"
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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"github.com/vulcanize/vulcanizedb/examples/erc20_watcher/every_block"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/fakes"
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"reflect"
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)
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type Fetcher struct {
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ContractAddress string
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Abi string
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FetchedBlocks []int64
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BlockChain core.BlockChain
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supply big.Int
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balance map[string]*big.Int
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allowance map[string]map[string]*big.Int
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owner common.Address
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stopped bool
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stringName string
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hashName common.Hash
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stringSymbol string
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hashSymbol common.Hash
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}
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func (f *Fetcher) SetSupply(supply string) {
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f.supply.SetString(supply, 10)
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}
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func (f Fetcher) GetBlockChain() core.BlockChain {
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return f.BlockChain
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}
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func (f *Fetcher) FetchBigInt(method, contractAbi, contractAddress string, blockNumber int64, methodArgs []interface{}) (big.Int, error) {
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f.Abi = contractAbi
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f.ContractAddress = contractAddress
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f.FetchedBlocks = append(f.FetchedBlocks, blockNumber)
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accumulator := big.NewInt(1)
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if method == "totalSupply" {
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f.supply.Add(&f.supply, accumulator)
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return f.supply, nil
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}
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if method == "balanceOf" {
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rfl := reflect.ValueOf(methodArgs[0])
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tokenHolderAddr := rfl.Interface().(string)
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pnt := f.balance[tokenHolderAddr]
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f.balance[tokenHolderAddr].Add(pnt, accumulator)
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return *f.balance[tokenHolderAddr], nil
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}
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if method == "allowance" {
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rfl1 := reflect.ValueOf(methodArgs[0])
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rfl2 := reflect.ValueOf(methodArgs[1])
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tokenHolderAddr := rfl1.Interface().(string)
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spenderAddr := rfl2.Interface().(string)
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pnt := f.allowance[tokenHolderAddr][spenderAddr]
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f.allowance[tokenHolderAddr][spenderAddr].Add(pnt, accumulator)
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return *f.allowance[tokenHolderAddr][spenderAddr], nil
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}
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return *big.NewInt(0), errors.New("invalid method argument")
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}
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func (f *Fetcher) FetchBool(method, contractAbi, contractAddress string, blockNumber int64, methodArgs []interface{}) (bool, error) {
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f.Abi = contractAbi
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f.ContractAddress = contractAddress
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f.FetchedBlocks = append(f.FetchedBlocks, blockNumber)
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b := true
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if method == "stopped" {
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f.stopped = b
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return f.stopped, nil
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}
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return false, errors.New("invalid method argument")
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}
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func (f *Fetcher) FetchAddress(method, contractAbi, contractAddress string, blockNumber int64, methodArgs []interface{}) (common.Address, error) {
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f.Abi = contractAbi
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f.ContractAddress = contractAddress
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f.FetchedBlocks = append(f.FetchedBlocks, blockNumber)
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adr := common.StringToAddress("test_address")
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if method == "owner" {
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f.owner = adr
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return f.owner, nil
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}
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return common.StringToAddress(""), errors.New("invalid method argument")
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}
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func (f *Fetcher) FetchString(method, contractAbi, contractAddress string, blockNumber int64, methodArgs []interface{}) (string, error) {
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f.Abi = contractAbi
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f.ContractAddress = contractAddress
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f.FetchedBlocks = append(f.FetchedBlocks, blockNumber)
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if method == "name" {
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f.stringName = "test_name"
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return f.stringName, nil
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}
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if method == "symbol" {
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f.stringSymbol = "test_symbol"
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return f.stringSymbol, nil
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}
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return "", errors.New("invalid method argument")
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}
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func (f *Fetcher) FetchHash(method, contractAbi, contractAddress string, blockNumber int64, methodArgs []interface{}) (common.Hash, error) {
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f.Abi = contractAbi
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f.ContractAddress = contractAddress
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f.FetchedBlocks = append(f.FetchedBlocks, blockNumber)
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if method == "name" {
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f.hashName = common.StringToHash("test_name")
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return f.hashName, nil
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}
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if method == "symbol" {
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f.hashSymbol = common.StringToHash("test_symbol")
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return f.hashSymbol, nil
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}
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return common.StringToHash(""), errors.New("invalid method argument")
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}
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type Getter struct {
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Fetcher Fetcher
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}
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func NewGetter(blockChain core.BlockChain) Getter {
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return Getter{
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Fetcher: Fetcher{
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BlockChain: blockChain,
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},
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}
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}
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func (g *Getter) GetTotalSupply(contractAbi, contractAddress string, blockNumber int64) (big.Int, error) {
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return g.Fetcher.FetchBigInt("totalSupply", contractAbi, contractAddress, blockNumber, nil)
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}
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func (g *Getter) GetBalance(contractAbi, contractAddress string, blockNumber int64, methodArgs []interface{}) (big.Int, error) {
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return g.Fetcher.FetchBigInt("balanceOf", contractAbi, contractAddress, blockNumber, methodArgs)
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}
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func (g *Getter) GetAllowance(contractAbi, contractAddress string, blockNumber int64, methodArgs []interface{}) (big.Int, error) {
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return g.Fetcher.FetchBigInt("allowance", contractAbi, contractAddress, blockNumber, methodArgs)
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}
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func (g *Getter) GetOwner(contractAbi, contractAddress string, blockNumber int64) (common.Address, error) {
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return g.Fetcher.FetchAddress("owner", contractAbi, contractAddress, blockNumber, nil)
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}
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func (g *Getter) GetStoppedStatus(contractAbi, contractAddress string, blockNumber int64) (bool, error) {
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return g.Fetcher.FetchBool("stopped", contractAbi, contractAddress, blockNumber, nil)
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}
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func (g *Getter) GetStringName(contractAbi, contractAddress string, blockNumber int64) (string, error) {
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return g.Fetcher.FetchString("name", contractAbi, contractAddress, blockNumber, nil)
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}
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func (g *Getter) GetHashName(contractAbi, contractAddress string, blockNumber int64) (common.Hash, error) {
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return g.Fetcher.FetchHash("name", contractAbi, contractAddress, blockNumber, nil)
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}
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func (g *Getter) GetStringSymbol(contractAbi, contractAddress string, blockNumber int64) (string, error) {
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return g.Fetcher.FetchString("symbol", contractAbi, contractAddress, blockNumber, nil)
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}
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func (g *Getter) GetHashSymbol(contractAbi, contractAddress string, blockNumber int64) (common.Hash, error) {
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return g.Fetcher.FetchHash("symbol", contractAbi, contractAddress, blockNumber, nil)
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}
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func (g *Getter) GetDecimals(contractAbi, contractAddress string, blockNumber int64) (big.Int, error) {
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return g.Fetcher.FetchBigInt("decimals", contractAbi, contractAddress, blockNumber, nil)
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}
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func (g *Getter) GetBlockChain() core.BlockChain {
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return g.Fetcher.BlockChain
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}
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type ERC20TokenRepository struct {
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TotalSuppliesCreated []every_block.TokenSupply
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MissingSupplyBlockNumbers []int64
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TotalBalancesCreated []every_block.TokenBalance
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MissingBalanceBlockNumbers []int64
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TotalAllowancesCreated []every_block.TokenAllowance
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MissingAllowanceBlockNumbers []int64
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StartingBlock int64
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EndingBlock int64
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}
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func (fr *ERC20TokenRepository) CreateSupply(supply every_block.TokenSupply) error {
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fr.TotalSuppliesCreated = append(fr.TotalSuppliesCreated, supply)
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return nil
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}
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func (fr *ERC20TokenRepository) CreateBalance(balance every_block.TokenBalance) error {
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fr.TotalBalancesCreated = append(fr.TotalBalancesCreated, balance)
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return nil
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}
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func (fr *ERC20TokenRepository) CreateAllowance(allowance every_block.TokenAllowance) error {
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fr.TotalAllowancesCreated = append(fr.TotalAllowancesCreated, allowance)
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return nil
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}
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func (fr *ERC20TokenRepository) MissingSupplyBlocks(startingBlock, highestBlock int64, tokenAddress string) ([]int64, error) {
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fr.StartingBlock = startingBlock
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fr.EndingBlock = highestBlock
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return fr.MissingSupplyBlockNumbers, nil
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}
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func (fr *ERC20TokenRepository) MissingBalanceBlocks(startingBlock, highestBlock int64, tokenAddress, holderAddress string) ([]int64, error) {
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fr.StartingBlock = startingBlock
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fr.EndingBlock = highestBlock
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return fr.MissingBalanceBlockNumbers, nil
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}
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func (fr *ERC20TokenRepository) MissingAllowanceBlocks(startingBlock, highestBlock int64, tokenAddress, holderAddress, spenderAddress string) ([]int64, error) {
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fr.StartingBlock = startingBlock
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fr.EndingBlock = highestBlock
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return fr.MissingAllowanceBlockNumbers, nil
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}
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func (fr *ERC20TokenRepository) SetMissingSupplyBlocks(missingBlocks []int64) {
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fr.MissingSupplyBlockNumbers = missingBlocks
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}
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func (fr *ERC20TokenRepository) SetMissingBalanceBlocks(missingBlocks []int64) {
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fr.MissingBalanceBlockNumbers = missingBlocks
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}
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func (fr *ERC20TokenRepository) SetMissingAllowanceBlocks(missingBlocks []int64) {
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fr.MissingAllowanceBlockNumbers = missingBlocks
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}
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type FailureRepository struct {
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createSupplyFail bool
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createBalanceFail bool
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createAllowanceFail bool
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missingSupplyBlocksFail bool
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missingBalanceBlocksFail bool
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missingAllowanceBlocksFail bool
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missingSupplyBlocksNumbers []int64
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missingBalanceBlocksNumbers []int64
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missingAllowanceBlocksNumbers []int64
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}
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func (fr *FailureRepository) CreateSupply(supply every_block.TokenSupply) error {
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if fr.createSupplyFail {
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return fakes.FakeError
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} else {
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return nil
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}
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}
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func (fr *FailureRepository) CreateBalance(balance every_block.TokenBalance) error {
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if fr.createBalanceFail {
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return fakes.FakeError
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} else {
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return nil
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}
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}
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func (fr *FailureRepository) CreateAllowance(allowance every_block.TokenAllowance) error {
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if fr.createAllowanceFail {
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return fakes.FakeError
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} else {
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return nil
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}
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}
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func (fr *FailureRepository) MissingSupplyBlocks(startingBlock, highestBlock int64, tokenAddress string) ([]int64, error) {
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if fr.missingSupplyBlocksFail {
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return []int64{}, fakes.FakeError
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} else {
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return fr.missingSupplyBlocksNumbers, nil
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}
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}
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func (fr *FailureRepository) MissingBalanceBlocks(startingBlock, highestBlock int64, tokenAddress, holderAddress string) ([]int64, error) {
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if fr.missingBalanceBlocksFail {
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return []int64{}, fakes.FakeError
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} else {
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return fr.missingBalanceBlocksNumbers, nil
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}
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}
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func (fr *FailureRepository) MissingAllowanceBlocks(startingBlock, highestBlock int64, tokenAddress, holderAddress, spenderAddress string) ([]int64, error) {
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if fr.missingAllowanceBlocksFail {
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return []int64{}, fakes.FakeError
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} else {
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return fr.missingAllowanceBlocksNumbers, nil
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}
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}
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func (fr *FailureRepository) SetCreateSupplyFail(fail bool) {
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fr.createSupplyFail = fail
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}
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func (fr *FailureRepository) SetCreateBalanceFail(fail bool) {
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fr.createBalanceFail = fail
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}
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func (fr *FailureRepository) SetCreateAllowanceFail(fail bool) {
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fr.createAllowanceFail = fail
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}
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func (fr *FailureRepository) SetMissingSupplyBlocksFail(fail bool) {
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fr.missingSupplyBlocksFail = fail
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}
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func (fr *FailureRepository) SetMissingBalanceBlocksFail(fail bool) {
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fr.missingBalanceBlocksFail = fail
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}
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func (fr *FailureRepository) SetMissingAllowanceBlocksFail(fail bool) {
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fr.missingAllowanceBlocksFail = fail
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}
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func (fr *FailureRepository) SetMissingSupplyBlocks(missingBlocks []int64) {
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fr.missingSupplyBlocksNumbers = missingBlocks
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}
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func (fr *FailureRepository) SetMissingBalanceBlocks(missingBlocks []int64) {
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fr.missingBalanceBlocksNumbers = missingBlocks
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}
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func (fr *FailureRepository) SetMissingAllowanceBlocks(missingBlocks []int64) {
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fr.missingAllowanceBlocksNumbers = missingBlocks
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}
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