mirror of https://github.com/etcd-io/dbtester.git
92 lines
2.0 KiB
Go
92 lines
2.0 KiB
Go
// Copyright 2017 CoreOS, Inc.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package fileinspect
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import (
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"bytes"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"testing"
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)
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func openToOverwrite(fpath string) (*os.File, error) {
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f, err := os.OpenFile(fpath, os.O_RDWR|os.O_TRUNC|os.O_CREATE, 0777)
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if err != nil {
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return nil, err
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}
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return f, nil
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}
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func writeData(fpath string, data []byte) (n int, err error) {
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f, err := openToOverwrite(fpath)
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if err != nil {
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f, err = os.Create(fpath)
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if err != nil {
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return -1, err
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}
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}
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defer f.Close()
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n, err = f.Write(data)
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return
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}
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func createData() (dir string, n int64, err error) {
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dir, err = ioutil.TempDir(os.TempDir(), "fileinspect-write-test")
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if err != nil {
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return
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}
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for i := 0; i < 5; i++ {
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dirpath := filepath.Join(dir, fmt.Sprint(i))
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if err = os.MkdirAll(dirpath, 0777); err != nil {
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return
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}
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for j := 0; j < 10; j++ {
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fpath := filepath.Join(dirpath, fmt.Sprint(j))
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var written int
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if written, err = writeData(fpath, bytes.Repeat([]byte("a"), j)); err != nil {
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return
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}
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n += int64(written)
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}
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}
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return
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}
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func TestWalkSize(t *testing.T) {
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dir, n, err := createData()
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defer os.RemoveAll(dir)
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if err != nil {
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t.Fatal(err)
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}
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fm, err := Walk(dir)
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if err != nil {
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t.Fatal(err)
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}
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fmt.Printf("walking %q (written %d bytes)\n", dir, n)
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for k, v := range fm {
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fmt.Printf("%q : %+v\n", k, v)
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}
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size, err := Size(dir)
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if err != nil {
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t.Fatal(err)
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}
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if n != size {
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t.Fatalf("size expected %d, got %d", n, size)
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}
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}
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