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https://gitlab.com/pulsechaincom/erigon-pulse.git
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80 lines
1.7 KiB
Go
80 lines
1.7 KiB
Go
//go:build !nofuzz
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/*
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Copyright 2021 Erigon contributors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package compress
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import (
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"context"
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"fmt"
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"math/rand"
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"path/filepath"
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"testing"
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"github.com/ledgerwatch/erigon-lib/common/cmp"
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"github.com/ledgerwatch/log/v3"
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)
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func FuzzCompress(f *testing.F) {
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f.Fuzz(func(t *testing.T, x []byte, pos []byte, workers int8) {
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t.Helper()
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t.Parallel()
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if len(pos) < 1 || workers < 1 {
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t.Skip()
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return
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}
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var a [][]byte
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j := 0
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for i := 0; i < len(pos) && j < len(x); i++ {
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if pos[i] == 0 {
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continue
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}
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next := cmp.Min(j+int(pos[i]*10), len(x)-1)
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bbb := x[j:next]
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a = append(a, bbb)
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j = next
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}
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ctx := context.Background()
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tmpDir := t.TempDir()
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file := filepath.Join(tmpDir, fmt.Sprintf("compressed-%d", rand.Int31()))
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c, err := NewCompressor(ctx, t.Name(), file, tmpDir, 2, int(workers), log.LvlDebug)
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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for _, b := range a {
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if err = c.AddWord(b); err != nil {
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t.Fatal(err)
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}
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}
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if err = c.Compress(); err != nil {
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t.Fatal(err)
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}
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c.Close()
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d, err := NewDecompressor(file)
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if err != nil {
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t.Fatal(err)
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}
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defer d.Close()
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g := d.MakeGetter()
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buf := make([]byte, 0, 100)
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for g.HasNext() {
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buf, _ = g.Next(buf[:0])
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}
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})
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}
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