488 lines
13 KiB
Go
488 lines
13 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser 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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//
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// The go-ethereum library 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 Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package chequebook
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import (
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"crypto/ecdsa"
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"math/big"
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"os"
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"path/filepath"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/accounts/abi/bind/backends"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/contracts/chequebook/contract"
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"github.com/ethereum/go-ethereum/core"
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"github.com/ethereum/go-ethereum/crypto"
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)
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var (
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key0, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
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key1, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
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key2, _ = crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
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addr0 = crypto.PubkeyToAddress(key0.PublicKey)
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addr1 = crypto.PubkeyToAddress(key1.PublicKey)
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addr2 = crypto.PubkeyToAddress(key2.PublicKey)
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)
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func newTestBackend() *backends.SimulatedBackend {
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return backends.NewSimulatedBackend(core.GenesisAlloc{
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addr0: {Balance: big.NewInt(1000000000)},
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addr1: {Balance: big.NewInt(1000000000)},
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addr2: {Balance: big.NewInt(1000000000)},
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})
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}
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func deploy(prvKey *ecdsa.PrivateKey, amount *big.Int, backend *backends.SimulatedBackend) (common.Address, error) {
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deployTransactor := bind.NewKeyedTransactor(prvKey)
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deployTransactor.Value = amount
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addr, _, _, err := contract.DeployChequebook(deployTransactor, backend)
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if err != nil {
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return common.Address{}, err
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}
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backend.Commit()
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return addr, nil
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}
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func TestIssueAndReceive(t *testing.T) {
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path := filepath.Join(os.TempDir(), "chequebook-test.json")
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backend := newTestBackend()
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addr0, err := deploy(key0, big.NewInt(0), backend)
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if err != nil {
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t.Fatalf("deploy contract: expected no error, got %v", err)
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}
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chbook, err := NewChequebook(path, addr0, key0, backend)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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chbook.sent[addr1] = new(big.Int).SetUint64(42)
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amount := common.Big1
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if _, err = chbook.Issue(addr1, amount); err == nil {
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t.Fatalf("expected insufficient funds error, got none")
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}
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chbook.balance = new(big.Int).Set(common.Big1)
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if chbook.Balance().Cmp(common.Big1) != 0 {
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t.Fatalf("expected: %v, got %v", "0", chbook.Balance())
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}
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ch, err := chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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if chbook.Balance().Sign() != 0 {
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t.Errorf("expected: %v, got %v", "0", chbook.Balance())
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}
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chbox, err := NewInbox(key1, addr0, addr1, &key0.PublicKey, backend)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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received, err := chbox.Receive(ch)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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if received.Cmp(big.NewInt(43)) != 0 {
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t.Errorf("expected: %v, got %v", "43", received)
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}
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}
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func TestCheckbookFile(t *testing.T) {
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path := filepath.Join(os.TempDir(), "chequebook-test.json")
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backend := newTestBackend()
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chbook, err := NewChequebook(path, addr0, key0, backend)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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chbook.sent[addr1] = new(big.Int).SetUint64(42)
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chbook.balance = new(big.Int).Set(common.Big1)
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chbook.Save()
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chbook, err = LoadChequebook(path, key0, backend, false)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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if chbook.Balance().Cmp(common.Big1) != 0 {
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t.Errorf("expected: %v, got %v", "0", chbook.Balance())
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}
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var ch *Cheque
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if ch, err = chbook.Issue(addr1, common.Big1); err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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if ch.Amount.Cmp(new(big.Int).SetUint64(43)) != 0 {
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t.Errorf("expected: %v, got %v", "0", ch.Amount)
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}
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err = chbook.Save()
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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}
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func TestVerifyErrors(t *testing.T) {
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path0 := filepath.Join(os.TempDir(), "chequebook-test-0.json")
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backend := newTestBackend()
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contr0, err := deploy(key0, common.Big2, backend)
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if err != nil {
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t.Errorf("expected no error, got %v", err)
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}
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chbook0, err := NewChequebook(path0, contr0, key0, backend)
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if err != nil {
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t.Errorf("expected no error, got %v", err)
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}
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path1 := filepath.Join(os.TempDir(), "chequebook-test-1.json")
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contr1, _ := deploy(key1, common.Big2, backend)
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chbook1, err := NewChequebook(path1, contr1, key1, backend)
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if err != nil {
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t.Errorf("expected no error, got %v", err)
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}
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chbook0.sent[addr1] = new(big.Int).SetUint64(42)
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chbook0.balance = new(big.Int).Set(common.Big2)
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chbook1.balance = new(big.Int).Set(common.Big1)
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amount := common.Big1
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ch0, err := chbook0.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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chbox, err := NewInbox(key1, contr0, addr1, &key0.PublicKey, backend)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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received, err := chbox.Receive(ch0)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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if received.Cmp(big.NewInt(43)) != 0 {
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t.Errorf("expected: %v, got %v", "43", received)
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}
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ch1, err := chbook0.Issue(addr2, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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received, err = chbox.Receive(ch1)
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t.Logf("correct error: %v", err)
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if err == nil {
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t.Fatalf("expected receiver error, got none and value %v", received)
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}
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ch2, err := chbook1.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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received, err = chbox.Receive(ch2)
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t.Logf("correct error: %v", err)
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if err == nil {
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t.Fatalf("expected sender error, got none and value %v", received)
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}
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_, err = chbook1.Issue(addr1, new(big.Int).SetInt64(-1))
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t.Logf("correct error: %v", err)
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if err == nil {
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t.Fatalf("expected incorrect amount error, got none")
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}
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received, err = chbox.Receive(ch0)
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t.Logf("correct error: %v", err)
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if err == nil {
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t.Fatalf("expected incorrect amount error, got none and value %v", received)
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}
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}
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func TestDeposit(t *testing.T) {
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path0 := filepath.Join(os.TempDir(), "chequebook-test-0.json")
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backend := newTestBackend()
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contr0, _ := deploy(key0, new(big.Int), backend)
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chbook, err := NewChequebook(path0, contr0, key0, backend)
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if err != nil {
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t.Errorf("expected no error, got %v", err)
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}
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balance := new(big.Int).SetUint64(42)
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chbook.Deposit(balance)
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backend.Commit()
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if chbook.Balance().Cmp(balance) != 0 {
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t.Fatalf("expected balance %v, got %v", balance, chbook.Balance())
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}
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amount := common.Big1
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_, err = chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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exp := new(big.Int).SetUint64(41)
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if chbook.Balance().Cmp(exp) != 0 {
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t.Fatalf("expected balance %v, got %v", exp, chbook.Balance())
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}
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// autodeposit on each issue
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chbook.AutoDeposit(0, balance, balance)
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_, err = chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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_, err = chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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if chbook.Balance().Cmp(balance) != 0 {
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t.Fatalf("expected balance %v, got %v", balance, chbook.Balance())
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}
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// autodeposit off
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chbook.AutoDeposit(0, common.Big0, balance)
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_, err = chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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_, err = chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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exp = new(big.Int).SetUint64(40)
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if chbook.Balance().Cmp(exp) != 0 {
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t.Fatalf("expected balance %v, got %v", exp, chbook.Balance())
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}
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// autodeposit every 30ms if new cheque issued
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interval := 30 * time.Millisecond
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chbook.AutoDeposit(interval, common.Big1, balance)
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_, err = chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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_, err = chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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exp = new(big.Int).SetUint64(38)
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if chbook.Balance().Cmp(exp) != 0 {
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t.Fatalf("expected balance %v, got %v", exp, chbook.Balance())
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}
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time.Sleep(3 * interval)
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backend.Commit()
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if chbook.Balance().Cmp(balance) != 0 {
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t.Fatalf("expected balance %v, got %v", balance, chbook.Balance())
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}
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exp = new(big.Int).SetUint64(40)
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chbook.AutoDeposit(4*interval, exp, balance)
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_, err = chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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_, err = chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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time.Sleep(3 * interval)
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backend.Commit()
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if chbook.Balance().Cmp(exp) != 0 {
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t.Fatalf("expected balance %v, got %v", exp, chbook.Balance())
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}
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_, err = chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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time.Sleep(1 * interval)
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backend.Commit()
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if chbook.Balance().Cmp(balance) != 0 {
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t.Fatalf("expected balance %v, got %v", balance, chbook.Balance())
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}
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chbook.AutoDeposit(1*interval, common.Big0, balance)
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chbook.Stop()
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_, err = chbook.Issue(addr1, common.Big1)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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_, err = chbook.Issue(addr1, common.Big2)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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time.Sleep(1 * interval)
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backend.Commit()
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exp = new(big.Int).SetUint64(39)
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if chbook.Balance().Cmp(exp) != 0 {
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t.Fatalf("expected balance %v, got %v", exp, chbook.Balance())
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}
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}
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func TestCash(t *testing.T) {
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path := filepath.Join(os.TempDir(), "chequebook-test.json")
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backend := newTestBackend()
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contr0, _ := deploy(key0, common.Big2, backend)
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chbook, err := NewChequebook(path, contr0, key0, backend)
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if err != nil {
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t.Errorf("expected no error, got %v", err)
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}
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chbook.sent[addr1] = new(big.Int).SetUint64(42)
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amount := common.Big1
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chbook.balance = new(big.Int).Set(common.Big1)
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ch, err := chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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chbox, err := NewInbox(key1, contr0, addr1, &key0.PublicKey, backend)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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// cashing latest cheque
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if _, err = chbox.Receive(ch); err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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if _, err = ch.Cash(chbook.session); err != nil {
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t.Fatal("Cash failed:", err)
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}
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backend.Commit()
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chbook.balance = new(big.Int).Set(common.Big3)
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ch0, err := chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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ch1, err := chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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interval := 10 * time.Millisecond
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// setting autocash with interval of 10ms
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chbox.AutoCash(interval, nil)
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_, err = chbox.Receive(ch0)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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_, err = chbox.Receive(ch1)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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// after 3x interval time and 2 cheques received, exactly one cashing tx is sent
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time.Sleep(4 * interval)
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backend.Commit()
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// after stopping autocash no more tx are sent
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ch2, err := chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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chbox.Stop()
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_, err = chbox.Receive(ch2)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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time.Sleep(2 * interval)
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backend.Commit()
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// autocash below 1
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chbook.balance = big.NewInt(2)
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chbox.AutoCash(0, common.Big1)
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ch3, err := chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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ch4, err := chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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_, err = chbox.Receive(ch3)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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_, err = chbox.Receive(ch4)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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// autochash on receipt when maxUncashed is 0
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chbook.balance = new(big.Int).Set(common.Big2)
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chbox.AutoCash(0, common.Big0)
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ch5, err := chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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ch6, err := chbook.Issue(addr1, amount)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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_, err = chbox.Receive(ch5)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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_, err = chbox.Receive(ch6)
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if err != nil {
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t.Fatalf("expected no error, got %v", err)
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}
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backend.Commit()
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}
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