146 lines
3.8 KiB
Go
146 lines
3.8 KiB
Go
// Copyright 2023 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU 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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// go-ethereum 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package era
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import (
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"bytes"
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"io"
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"math/big"
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"os"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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)
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type testchain struct {
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headers [][]byte
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bodies [][]byte
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receipts [][]byte
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tds []*big.Int
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}
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func TestEra1Builder(t *testing.T) {
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t.Parallel()
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// Get temp directory.
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f, err := os.CreateTemp("", "era1-test")
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if err != nil {
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t.Fatalf("error creating temp file: %v", err)
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}
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defer f.Close()
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var (
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builder = NewBuilder(f)
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chain = testchain{}
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)
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for i := 0; i < 128; i++ {
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chain.headers = append(chain.headers, []byte{byte('h'), byte(i)})
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chain.bodies = append(chain.bodies, []byte{byte('b'), byte(i)})
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chain.receipts = append(chain.receipts, []byte{byte('r'), byte(i)})
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chain.tds = append(chain.tds, big.NewInt(int64(i)))
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}
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// Write blocks to Era1.
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for i := 0; i < len(chain.headers); i++ {
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var (
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header = chain.headers[i]
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body = chain.bodies[i]
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receipts = chain.receipts[i]
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hash = common.Hash{byte(i)}
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td = chain.tds[i]
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)
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if err = builder.AddRLP(header, body, receipts, uint64(i), hash, td, big.NewInt(1)); err != nil {
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t.Fatalf("error adding entry: %v", err)
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}
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}
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// Finalize Era1.
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if _, err := builder.Finalize(); err != nil {
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t.Fatalf("error finalizing era1: %v", err)
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}
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// Verify Era1 contents.
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e, err := Open(f.Name())
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if err != nil {
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t.Fatalf("failed to open era: %v", err)
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}
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it, err := NewRawIterator(e)
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if err != nil {
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t.Fatalf("failed to make iterator: %s", err)
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}
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for i := uint64(0); i < uint64(len(chain.headers)); i++ {
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if !it.Next() {
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t.Fatalf("expected more entries")
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}
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if it.Error() != nil {
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t.Fatalf("unexpected error %v", it.Error())
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}
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// Check headers.
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header, err := io.ReadAll(it.Header)
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if err != nil {
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t.Fatalf("error reading header: %v", err)
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}
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if !bytes.Equal(header, chain.headers[i]) {
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t.Fatalf("mismatched header: want %s, got %s", chain.headers[i], header)
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}
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// Check bodies.
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body, err := io.ReadAll(it.Body)
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if err != nil {
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t.Fatalf("error reading body: %v", err)
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}
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if !bytes.Equal(body, chain.bodies[i]) {
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t.Fatalf("mismatched body: want %s, got %s", chain.bodies[i], body)
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}
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// Check receipts.
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receipts, err := io.ReadAll(it.Receipts)
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if err != nil {
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t.Fatalf("error reading receipts: %v", err)
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}
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if !bytes.Equal(receipts, chain.receipts[i]) {
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t.Fatalf("mismatched receipts: want %s, got %s", chain.receipts[i], receipts)
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}
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// Check total difficulty.
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rawTd, err := io.ReadAll(it.TotalDifficulty)
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if err != nil {
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t.Fatalf("error reading td: %v", err)
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}
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td := new(big.Int).SetBytes(reverseOrder(rawTd))
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if td.Cmp(chain.tds[i]) != 0 {
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t.Fatalf("mismatched tds: want %s, got %s", chain.tds[i], td)
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}
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}
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}
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func TestEraFilename(t *testing.T) {
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t.Parallel()
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for i, tt := range []struct {
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network string
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epoch int
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root common.Hash
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expected string
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}{
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{"mainnet", 1, common.Hash{1}, "mainnet-00001-01000000.era1"},
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} {
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got := Filename(tt.network, tt.epoch, tt.root)
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if tt.expected != got {
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t.Errorf("test %d: invalid filename: want %s, got %s", i, tt.expected, got)
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}
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}
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}
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