mirror of https://github.com/poanetwork/quorum.git
124 lines
3.1 KiB
Go
124 lines
3.1 KiB
Go
// Copyright 2018 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 storage
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import (
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"context"
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"encoding/hex"
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"errors"
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"io/ioutil"
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"testing"
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"time"
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"github.com/ethereum/go-ethereum/swarm/network"
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)
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var (
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errUnknown = errors.New("unknown error")
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)
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type mockRetrieve struct {
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requests map[string]int
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}
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func NewMockRetrieve() *mockRetrieve {
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return &mockRetrieve{requests: make(map[string]int)}
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}
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func newDummyChunk(addr Address) *Chunk {
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chunk := NewChunk(addr, make(chan bool))
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chunk.SData = []byte{3, 4, 5}
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chunk.Size = 3
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return chunk
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}
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func (m *mockRetrieve) retrieve(ctx context.Context, chunk *Chunk) error {
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hkey := hex.EncodeToString(chunk.Addr)
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m.requests[hkey] += 1
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// on second call return error
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if m.requests[hkey] == 2 {
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return errUnknown
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}
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// on third call return data
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if m.requests[hkey] == 3 {
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*chunk = *newDummyChunk(chunk.Addr)
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go func() {
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time.Sleep(100 * time.Millisecond)
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close(chunk.ReqC)
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}()
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return nil
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}
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return nil
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}
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func TestNetstoreFailedRequest(t *testing.T) {
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searchTimeout = 300 * time.Millisecond
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// setup
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addr := network.RandomAddr() // tested peers peer address
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// temp datadir
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datadir, err := ioutil.TempDir("", "netstore")
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if err != nil {
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t.Fatal(err)
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}
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params := NewDefaultLocalStoreParams()
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params.Init(datadir)
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params.BaseKey = addr.Over()
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localStore, err := NewTestLocalStoreForAddr(params)
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if err != nil {
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t.Fatal(err)
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}
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r := NewMockRetrieve()
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netStore := NewNetStore(localStore, r.retrieve)
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key := Address{}
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// first call is done by the retry on ErrChunkNotFound, no need to do it here
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// _, err = netStore.Get(key)
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// if err == nil || err != ErrChunkNotFound {
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// t.Fatalf("expected to get ErrChunkNotFound, but got: %s", err)
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// }
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// second call
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_, err = netStore.Get(context.TODO(), key)
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if got := r.requests[hex.EncodeToString(key)]; got != 2 {
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t.Fatalf("expected to have called retrieve two times, but got: %v", got)
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}
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if err != errUnknown {
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t.Fatalf("expected to get an unknown error, but got: %s", err)
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}
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// third call
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chunk, err := netStore.Get(context.TODO(), key)
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if got := r.requests[hex.EncodeToString(key)]; got != 3 {
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t.Fatalf("expected to have called retrieve three times, but got: %v", got)
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}
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if err != nil || chunk == nil {
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t.Fatalf("expected to get a chunk but got: %v, %s", chunk, err)
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}
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if len(chunk.SData) != 3 {
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t.Fatalf("expected to get a chunk with size 3, but got: %v", chunk.SData)
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}
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}
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