700 lines
15 KiB
Go
700 lines
15 KiB
Go
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// Copyright © 2014 Steve Francia <spf@spf13.com>.
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// Copyright 2009 The Go Authors. All rights reserved.
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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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// 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 afero
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"runtime"
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"strings"
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"syscall"
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"testing"
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)
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var testName = "test.txt"
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var Fss = []Fs{&MemMapFs{}, &OsFs{}}
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var testRegistry map[Fs][]string = make(map[Fs][]string)
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func testDir(fs Fs) string {
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name, err := TempDir(fs, "", "afero")
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if err != nil {
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panic(fmt.Sprint("unable to work with test dir", err))
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}
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testRegistry[fs] = append(testRegistry[fs], name)
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return name
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}
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func tmpFile(fs Fs) File {
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x, err := TempFile(fs, "", "afero")
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if err != nil {
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panic(fmt.Sprint("unable to work with temp file", err))
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}
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testRegistry[fs] = append(testRegistry[fs], x.Name())
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return x
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}
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//Read with length 0 should not return EOF.
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func TestRead0(t *testing.T) {
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for _, fs := range Fss {
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f := tmpFile(fs)
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defer f.Close()
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f.WriteString("Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.")
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var b []byte
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// b := make([]byte, 0)
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n, err := f.Read(b)
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if n != 0 || err != nil {
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t.Errorf("%v: Read(0) = %d, %v, want 0, nil", fs.Name(), n, err)
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}
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f.Seek(0, 0)
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b = make([]byte, 100)
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n, err = f.Read(b)
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if n <= 0 || err != nil {
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t.Errorf("%v: Read(100) = %d, %v, want >0, nil", fs.Name(), n, err)
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}
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}
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}
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func TestOpenFile(t *testing.T) {
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defer removeAllTestFiles(t)
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for _, fs := range Fss {
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tmp := testDir(fs)
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path := filepath.Join(tmp, testName)
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f, err := fs.OpenFile(path, os.O_RDWR|os.O_CREATE, 0600)
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if err != nil {
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t.Error(fs.Name(), "OpenFile (O_CREATE) failed:", err)
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continue
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}
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io.WriteString(f, "initial")
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f.Close()
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f, err = fs.OpenFile(path, os.O_WRONLY|os.O_APPEND, 0600)
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if err != nil {
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t.Error(fs.Name(), "OpenFile (O_APPEND) failed:", err)
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continue
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}
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io.WriteString(f, "|append")
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f.Close()
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f, err = fs.OpenFile(path, os.O_RDONLY, 0600)
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contents, _ := ioutil.ReadAll(f)
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expectedContents := "initial|append"
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if string(contents) != expectedContents {
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t.Errorf("%v: appending, expected '%v', got: '%v'", fs.Name(), expectedContents, string(contents))
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}
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f.Close()
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f, err = fs.OpenFile(path, os.O_RDWR|os.O_TRUNC, 0600)
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if err != nil {
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t.Error(fs.Name(), "OpenFile (O_TRUNC) failed:", err)
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continue
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}
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contents, _ = ioutil.ReadAll(f)
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if string(contents) != "" {
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t.Errorf("%v: expected truncated file, got: '%v'", fs.Name(), string(contents))
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}
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f.Close()
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}
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}
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func TestCreate(t *testing.T) {
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defer removeAllTestFiles(t)
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for _, fs := range Fss {
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tmp := testDir(fs)
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path := filepath.Join(tmp, testName)
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f, err := fs.Create(path)
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if err != nil {
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t.Error(fs.Name(), "Create failed:", err)
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f.Close()
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continue
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}
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io.WriteString(f, "initial")
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f.Close()
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f, err = fs.Create(path)
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if err != nil {
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t.Error(fs.Name(), "Create failed:", err)
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f.Close()
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continue
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}
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secondContent := "second create"
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io.WriteString(f, secondContent)
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f.Close()
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f, err = fs.Open(path)
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if err != nil {
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t.Error(fs.Name(), "Open failed:", err)
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f.Close()
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continue
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}
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buf, err := ReadAll(f)
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if err != nil {
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t.Error(fs.Name(), "ReadAll failed:", err)
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f.Close()
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continue
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}
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if string(buf) != secondContent {
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t.Error(fs.Name(), "Content should be", "\""+secondContent+"\" but is \""+string(buf)+"\"")
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f.Close()
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continue
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}
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f.Close()
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}
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}
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func TestMemFileRead(t *testing.T) {
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f := tmpFile(new(MemMapFs))
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// f := MemFileCreate("testfile")
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f.WriteString("abcd")
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f.Seek(0, 0)
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b := make([]byte, 8)
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n, err := f.Read(b)
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if n != 4 {
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t.Errorf("didn't read all bytes: %v %v %v", n, err, b)
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}
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if err != nil {
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t.Errorf("err is not nil: %v %v %v", n, err, b)
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}
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n, err = f.Read(b)
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if n != 0 {
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t.Errorf("read more bytes: %v %v %v", n, err, b)
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}
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if err != io.EOF {
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t.Errorf("error is not EOF: %v %v %v", n, err, b)
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}
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}
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func TestRename(t *testing.T) {
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defer removeAllTestFiles(t)
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for _, fs := range Fss {
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tDir := testDir(fs)
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from := filepath.Join(tDir, "/renamefrom")
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to := filepath.Join(tDir, "/renameto")
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exists := filepath.Join(tDir, "/renameexists")
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file, err := fs.Create(from)
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if err != nil {
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t.Fatalf("%s: open %q failed: %v", fs.Name(), to, err)
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}
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if err = file.Close(); err != nil {
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t.Errorf("%s: close %q failed: %v", fs.Name(), to, err)
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}
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file, err = fs.Create(exists)
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if err != nil {
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t.Fatalf("%s: open %q failed: %v", fs.Name(), to, err)
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}
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if err = file.Close(); err != nil {
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t.Errorf("%s: close %q failed: %v", fs.Name(), to, err)
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}
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err = fs.Rename(from, to)
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if err != nil {
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t.Fatalf("%s: rename %q, %q failed: %v", fs.Name(), to, from, err)
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}
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file, err = fs.Create(from)
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if err != nil {
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t.Fatalf("%s: open %q failed: %v", fs.Name(), to, err)
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}
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if err = file.Close(); err != nil {
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t.Errorf("%s: close %q failed: %v", fs.Name(), to, err)
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}
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err = fs.Rename(from, exists)
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if err != nil {
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t.Errorf("%s: rename %q, %q failed: %v", fs.Name(), exists, from, err)
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}
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names, err := readDirNames(fs, tDir)
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if err != nil {
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t.Errorf("%s: readDirNames error: %v", fs.Name(), err)
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}
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found := false
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for _, e := range names {
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if e == "renamefrom" {
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t.Error("File is still called renamefrom")
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}
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if e == "renameto" {
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found = true
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}
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}
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if !found {
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t.Error("File was not renamed to renameto")
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}
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_, err = fs.Stat(to)
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if err != nil {
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t.Errorf("%s: stat %q failed: %v", fs.Name(), to, err)
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}
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}
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}
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func TestRemove(t *testing.T) {
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for _, fs := range Fss {
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x, err := TempFile(fs, "", "afero")
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if err != nil {
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t.Error(fmt.Sprint("unable to work with temp file", err))
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}
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path := x.Name()
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x.Close()
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tDir := filepath.Dir(path)
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err = fs.Remove(path)
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if err != nil {
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t.Errorf("%v: Remove() failed: %v", fs.Name(), err)
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continue
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}
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_, err = fs.Stat(path)
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if !os.IsNotExist(err) {
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t.Errorf("%v: Remove() didn't remove file", fs.Name())
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continue
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}
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// Deleting non-existent file should raise error
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err = fs.Remove(path)
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if !os.IsNotExist(err) {
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t.Errorf("%v: Remove() didn't raise error for non-existent file", fs.Name())
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}
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f, err := fs.Open(tDir)
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if err != nil {
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t.Error("TestDir should still exist:", err)
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}
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names, err := f.Readdirnames(-1)
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if err != nil {
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t.Error("Readdirnames failed:", err)
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}
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for _, e := range names {
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if e == testName {
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t.Error("File was not removed from parent directory")
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}
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}
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}
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}
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func TestTruncate(t *testing.T) {
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defer removeAllTestFiles(t)
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for _, fs := range Fss {
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f := tmpFile(fs)
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defer f.Close()
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checkSize(t, f, 0)
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f.Write([]byte("hello, world\n"))
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checkSize(t, f, 13)
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f.Truncate(10)
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checkSize(t, f, 10)
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f.Truncate(1024)
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checkSize(t, f, 1024)
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f.Truncate(0)
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checkSize(t, f, 0)
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_, err := f.Write([]byte("surprise!"))
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if err == nil {
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checkSize(t, f, 13+9) // wrote at offset past where hello, world was.
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}
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}
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}
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func TestSeek(t *testing.T) {
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defer removeAllTestFiles(t)
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for _, fs := range Fss {
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f := tmpFile(fs)
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defer f.Close()
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const data = "hello, world\n"
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io.WriteString(f, data)
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type test struct {
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in int64
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whence int
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out int64
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}
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var tests = []test{
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{0, 1, int64(len(data))},
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{0, 0, 0},
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{5, 0, 5},
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{0, 2, int64(len(data))},
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{0, 0, 0},
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{-1, 2, int64(len(data)) - 1},
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{1 << 33, 0, 1 << 33},
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{1 << 33, 2, 1<<33 + int64(len(data))},
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}
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for i, tt := range tests {
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off, err := f.Seek(tt.in, tt.whence)
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if off != tt.out || err != nil {
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if e, ok := err.(*os.PathError); ok && e.Err == syscall.EINVAL && tt.out > 1<<32 {
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// Reiserfs rejects the big seeks.
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// http://code.google.com/p/go/issues/detail?id=91
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break
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}
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t.Errorf("#%d: Seek(%v, %v) = %v, %v want %v, nil", i, tt.in, tt.whence, off, err, tt.out)
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}
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}
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}
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}
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func TestReadAt(t *testing.T) {
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defer removeAllTestFiles(t)
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for _, fs := range Fss {
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f := tmpFile(fs)
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defer f.Close()
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const data = "hello, world\n"
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io.WriteString(f, data)
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b := make([]byte, 5)
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n, err := f.ReadAt(b, 7)
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if err != nil || n != len(b) {
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t.Fatalf("ReadAt 7: %d, %v", n, err)
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}
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if string(b) != "world" {
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t.Fatalf("ReadAt 7: have %q want %q", string(b), "world")
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}
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|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestWriteAt(t *testing.T) {
|
||
|
|
defer removeAllTestFiles(t)
|
||
|
|
for _, fs := range Fss {
|
||
|
|
f := tmpFile(fs)
|
||
|
|
defer f.Close()
|
||
|
|
|
||
|
|
const data = "hello, world\n"
|
||
|
|
io.WriteString(f, data)
|
||
|
|
|
||
|
|
n, err := f.WriteAt([]byte("WORLD"), 7)
|
||
|
|
if err != nil || n != 5 {
|
||
|
|
t.Fatalf("WriteAt 7: %d, %v", n, err)
|
||
|
|
}
|
||
|
|
|
||
|
|
f2, err := fs.Open(f.Name())
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("%v: ReadFile %s: %v", fs.Name(), f.Name(), err)
|
||
|
|
}
|
||
|
|
defer f2.Close()
|
||
|
|
buf := new(bytes.Buffer)
|
||
|
|
buf.ReadFrom(f2)
|
||
|
|
b := buf.Bytes()
|
||
|
|
if string(b) != "hello, WORLD\n" {
|
||
|
|
t.Fatalf("after write: have %q want %q", string(b), "hello, WORLD\n")
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func setupTestDir(t *testing.T, fs Fs) string {
|
||
|
|
path := testDir(fs)
|
||
|
|
return setupTestFiles(t, fs, path)
|
||
|
|
}
|
||
|
|
|
||
|
|
func setupTestDirRoot(t *testing.T, fs Fs) string {
|
||
|
|
path := testDir(fs)
|
||
|
|
setupTestFiles(t, fs, path)
|
||
|
|
return path
|
||
|
|
}
|
||
|
|
|
||
|
|
func setupTestDirReusePath(t *testing.T, fs Fs, path string) string {
|
||
|
|
testRegistry[fs] = append(testRegistry[fs], path)
|
||
|
|
return setupTestFiles(t, fs, path)
|
||
|
|
}
|
||
|
|
|
||
|
|
func setupTestFiles(t *testing.T, fs Fs, path string) string {
|
||
|
|
testSubDir := filepath.Join(path, "more", "subdirectories", "for", "testing", "we")
|
||
|
|
err := fs.MkdirAll(testSubDir, 0700)
|
||
|
|
if err != nil && !os.IsExist(err) {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
f, err := fs.Create(filepath.Join(testSubDir, "testfile1"))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
f.WriteString("Testfile 1 content")
|
||
|
|
f.Close()
|
||
|
|
|
||
|
|
f, err = fs.Create(filepath.Join(testSubDir, "testfile2"))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
f.WriteString("Testfile 2 content")
|
||
|
|
f.Close()
|
||
|
|
|
||
|
|
f, err = fs.Create(filepath.Join(testSubDir, "testfile3"))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
f.WriteString("Testfile 3 content")
|
||
|
|
f.Close()
|
||
|
|
|
||
|
|
f, err = fs.Create(filepath.Join(testSubDir, "testfile4"))
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
f.WriteString("Testfile 4 content")
|
||
|
|
f.Close()
|
||
|
|
return testSubDir
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestReaddirnames(t *testing.T) {
|
||
|
|
defer removeAllTestFiles(t)
|
||
|
|
for _, fs := range Fss {
|
||
|
|
testSubDir := setupTestDir(t, fs)
|
||
|
|
tDir := filepath.Dir(testSubDir)
|
||
|
|
|
||
|
|
root, err := fs.Open(tDir)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(fs.Name(), tDir, err)
|
||
|
|
}
|
||
|
|
defer root.Close()
|
||
|
|
|
||
|
|
namesRoot, err := root.Readdirnames(-1)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(fs.Name(), namesRoot, err)
|
||
|
|
}
|
||
|
|
|
||
|
|
sub, err := fs.Open(testSubDir)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
defer sub.Close()
|
||
|
|
|
||
|
|
namesSub, err := sub.Readdirnames(-1)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(fs.Name(), namesSub, err)
|
||
|
|
}
|
||
|
|
|
||
|
|
findNames(fs, t, tDir, testSubDir, namesRoot, namesSub)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestReaddirSimple(t *testing.T) {
|
||
|
|
defer removeAllTestFiles(t)
|
||
|
|
for _, fs := range Fss {
|
||
|
|
testSubDir := setupTestDir(t, fs)
|
||
|
|
tDir := filepath.Dir(testSubDir)
|
||
|
|
|
||
|
|
root, err := fs.Open(tDir)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
defer root.Close()
|
||
|
|
|
||
|
|
rootInfo, err := root.Readdir(1)
|
||
|
|
if err != nil {
|
||
|
|
t.Log(myFileInfo(rootInfo))
|
||
|
|
t.Error(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
rootInfo, err = root.Readdir(5)
|
||
|
|
if err != io.EOF {
|
||
|
|
t.Log(myFileInfo(rootInfo))
|
||
|
|
t.Error(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
sub, err := fs.Open(testSubDir)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
defer sub.Close()
|
||
|
|
|
||
|
|
subInfo, err := sub.Readdir(5)
|
||
|
|
if err != nil {
|
||
|
|
t.Log(myFileInfo(subInfo))
|
||
|
|
t.Error(err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestReaddir(t *testing.T) {
|
||
|
|
defer removeAllTestFiles(t)
|
||
|
|
for num := 0; num < 6; num++ {
|
||
|
|
outputs := make([]string, len(Fss))
|
||
|
|
infos := make([]string, len(Fss))
|
||
|
|
for i, fs := range Fss {
|
||
|
|
testSubDir := setupTestDir(t, fs)
|
||
|
|
//tDir := filepath.Dir(testSubDir)
|
||
|
|
root, err := fs.Open(testSubDir)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
defer root.Close()
|
||
|
|
|
||
|
|
for j := 0; j < 6; j++ {
|
||
|
|
info, err := root.Readdir(num)
|
||
|
|
outputs[i] += fmt.Sprintf("%v Error: %v\n", myFileInfo(info), err)
|
||
|
|
infos[i] += fmt.Sprintln(len(info), err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
fail := false
|
||
|
|
for i, o := range infos {
|
||
|
|
if i == 0 {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if o != infos[i-1] {
|
||
|
|
fail = true
|
||
|
|
break
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if fail {
|
||
|
|
t.Log("Readdir outputs not equal for Readdir(", num, ")")
|
||
|
|
for i, o := range outputs {
|
||
|
|
t.Log(Fss[i].Name())
|
||
|
|
t.Log(o)
|
||
|
|
}
|
||
|
|
t.Fail()
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
type myFileInfo []os.FileInfo
|
||
|
|
|
||
|
|
func (m myFileInfo) String() string {
|
||
|
|
out := "Fileinfos:\n"
|
||
|
|
for _, e := range m {
|
||
|
|
out += " " + e.Name() + "\n"
|
||
|
|
}
|
||
|
|
return out
|
||
|
|
}
|
||
|
|
|
||
|
|
func TestReaddirAll(t *testing.T) {
|
||
|
|
defer removeAllTestFiles(t)
|
||
|
|
for _, fs := range Fss {
|
||
|
|
testSubDir := setupTestDir(t, fs)
|
||
|
|
tDir := filepath.Dir(testSubDir)
|
||
|
|
|
||
|
|
root, err := fs.Open(tDir)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
defer root.Close()
|
||
|
|
|
||
|
|
rootInfo, err := root.Readdir(-1)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
var namesRoot = []string{}
|
||
|
|
for _, e := range rootInfo {
|
||
|
|
namesRoot = append(namesRoot, e.Name())
|
||
|
|
}
|
||
|
|
|
||
|
|
sub, err := fs.Open(testSubDir)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
defer sub.Close()
|
||
|
|
|
||
|
|
subInfo, err := sub.Readdir(-1)
|
||
|
|
if err != nil {
|
||
|
|
t.Fatal(err)
|
||
|
|
}
|
||
|
|
var namesSub = []string{}
|
||
|
|
for _, e := range subInfo {
|
||
|
|
namesSub = append(namesSub, e.Name())
|
||
|
|
}
|
||
|
|
|
||
|
|
findNames(fs, t, tDir, testSubDir, namesRoot, namesSub)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func findNames(fs Fs, t *testing.T, tDir, testSubDir string, root, sub []string) {
|
||
|
|
var foundRoot bool
|
||
|
|
for _, e := range root {
|
||
|
|
f, err := fs.Open(filepath.Join(tDir, e))
|
||
|
|
if err != nil {
|
||
|
|
t.Error("Open", filepath.Join(tDir, e), ":", err)
|
||
|
|
}
|
||
|
|
defer f.Close()
|
||
|
|
|
||
|
|
if equal(e, "we") {
|
||
|
|
foundRoot = true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if !foundRoot {
|
||
|
|
t.Logf("Names root: %v", root)
|
||
|
|
t.Logf("Names sub: %v", sub)
|
||
|
|
t.Error("Didn't find subdirectory we")
|
||
|
|
}
|
||
|
|
|
||
|
|
var found1, found2 bool
|
||
|
|
for _, e := range sub {
|
||
|
|
f, err := fs.Open(filepath.Join(testSubDir, e))
|
||
|
|
if err != nil {
|
||
|
|
t.Error("Open", filepath.Join(testSubDir, e), ":", err)
|
||
|
|
}
|
||
|
|
defer f.Close()
|
||
|
|
|
||
|
|
if equal(e, "testfile1") {
|
||
|
|
found1 = true
|
||
|
|
}
|
||
|
|
if equal(e, "testfile2") {
|
||
|
|
found2 = true
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if !found1 {
|
||
|
|
t.Logf("Names root: %v", root)
|
||
|
|
t.Logf("Names sub: %v", sub)
|
||
|
|
t.Error("Didn't find testfile1")
|
||
|
|
}
|
||
|
|
if !found2 {
|
||
|
|
t.Logf("Names root: %v", root)
|
||
|
|
t.Logf("Names sub: %v", sub)
|
||
|
|
t.Error("Didn't find testfile2")
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func removeAllTestFiles(t *testing.T) {
|
||
|
|
for fs, list := range testRegistry {
|
||
|
|
for _, path := range list {
|
||
|
|
if err := fs.RemoveAll(path); err != nil {
|
||
|
|
t.Error(fs.Name(), err)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
testRegistry = make(map[Fs][]string)
|
||
|
|
}
|
||
|
|
|
||
|
|
func equal(name1, name2 string) (r bool) {
|
||
|
|
switch runtime.GOOS {
|
||
|
|
case "windows":
|
||
|
|
r = strings.ToLower(name1) == strings.ToLower(name2)
|
||
|
|
default:
|
||
|
|
r = name1 == name2
|
||
|
|
}
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
func checkSize(t *testing.T, f File, size int64) {
|
||
|
|
dir, err := f.Stat()
|
||
|
|
if err != nil {
|
||
|
|
t.Fatalf("Stat %q (looking for size %d): %s", f.Name(), size, err)
|
||
|
|
}
|
||
|
|
if dir.Size() != size {
|
||
|
|
t.Errorf("Stat %q: size %d want %d", f.Name(), dir.Size(), size)
|
||
|
|
}
|
||
|
|
}
|