forked from cerc-io/plugeth
102 lines
2.5 KiB
Go
102 lines
2.5 KiB
Go
// Copyright 2017 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 bloombits
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import (
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"bytes"
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"encoding/binary"
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"math/rand"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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)
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const testFetcherReqCount = 5000
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func fetcherTestVector(b uint, s uint64) []byte {
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r := make([]byte, 10)
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binary.BigEndian.PutUint16(r[0:2], uint16(b))
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binary.BigEndian.PutUint64(r[2:10], s)
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return r
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}
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func TestFetcher(t *testing.T) {
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testFetcher(t, 1)
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}
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func TestFetcherMultipleReaders(t *testing.T) {
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testFetcher(t, 10)
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}
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func testFetcher(t *testing.T, cnt int) {
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f := &fetcher{
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requestMap: make(map[uint64]fetchRequest),
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}
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distCh := make(chan distRequest, channelCap)
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stop := make(chan struct{})
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var reqCount uint32
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for i := 0; i < 10; i++ {
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go func() {
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for {
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req, ok := <-distCh
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if !ok {
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return
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}
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time.Sleep(time.Duration(rand.Intn(100000)))
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atomic.AddUint32(&reqCount, 1)
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f.deliver([]uint64{req.sectionIndex}, [][]byte{fetcherTestVector(req.bloomIndex, req.sectionIndex)})
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}
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}()
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}
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var wg, wg2 sync.WaitGroup
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for cc := 0; cc < cnt; cc++ {
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wg.Add(1)
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in := make(chan uint64, channelCap)
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out := f.fetch(in, distCh, stop, &wg2)
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time.Sleep(time.Millisecond * 10 * time.Duration(cc))
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go func() {
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for i := uint64(0); i < testFetcherReqCount; i++ {
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in <- i
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}
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}()
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go func() {
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for i := uint64(0); i < testFetcherReqCount; i++ {
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bv := <-out
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if !bytes.Equal(bv, fetcherTestVector(0, i)) {
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if len(bv) != 10 {
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t.Errorf("Vector #%d length is %d, expected 10", i, len(bv))
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} else {
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j := binary.BigEndian.Uint64(bv[2:10])
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t.Errorf("Expected vector #%d, fetched #%d", i, j)
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}
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}
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}
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wg.Done()
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}()
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}
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wg.Wait()
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close(stop)
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if reqCount != testFetcherReqCount {
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t.Errorf("Request count mismatch: expected %v, got %v", testFetcherReqCount, reqCount)
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}
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}
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