mirror of https://github.com/spf13/afero.git
407 lines
8.6 KiB
Go
407 lines
8.6 KiB
Go
// Most of the tests are stolen from the zipfs implementation
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package tarfs
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import (
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"archive/tar"
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"errors"
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"fmt"
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"io"
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"os"
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"path/filepath"
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"reflect"
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"strings"
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"syscall"
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"testing"
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"github.com/spf13/afero"
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)
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var files = []struct {
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name string
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exists bool
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isdir bool
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size int64
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content string
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contentAt4k string
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}{
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{"/", true, true, 0, "", ""},
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{"/sub", true, true, 0, "", ""},
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{"/sub/testDir2", true, true, 0, "", ""},
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{"/sub/testDir2/testFile", true, false, 8192, "cccccccc", "ccccdddd"},
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{"/testFile", true, false, 8192, "aaaaaaaa", "aaaabbbb"},
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{"/testDir1/testFile", true, false, 8192, "bbbbbbbb", "bbbbcccc"},
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{"/nonExisting", false, false, 0, "", ""},
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}
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var dirs = []struct {
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name string
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children []string
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}{
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{"/", []string{"sub", "testDir1", "testFile"}},
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{"/sub", []string{"testDir2"}},
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{"/sub/testDir2", []string{"testFile"}},
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{"/testDir1", []string{"testFile"}},
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}
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var afs *afero.Afero
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func TestMain(m *testing.M) {
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tf, err := os.Open("testdata/t.tar")
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if err != nil {
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fmt.Print(err)
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os.Exit(1)
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}
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tfs := New(tar.NewReader(tf))
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afs = &afero.Afero{Fs: tfs}
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// Check that an empty reader does not panic.
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_ = New(tar.NewReader(strings.NewReader("")))
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os.Exit(m.Run())
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}
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func TestFsOpen(t *testing.T) {
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for _, f := range files {
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file, err := afs.Open(f.name)
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if (err == nil) != f.exists {
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t.Errorf("%v exists = %v, but got err = %v", f.name, f.exists, err)
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}
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if !f.exists {
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continue
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}
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if err != nil {
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t.Fatalf("%v: %v", f.name, err)
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}
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if file.Name() != filepath.FromSlash(f.name) {
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t.Errorf("Name(), got %v, expected %v", file.Name(), filepath.FromSlash(f.name))
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}
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s, err := file.Stat()
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if err != nil {
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t.Fatalf("stat %v: got error '%v'", file.Name(), err)
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}
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if isdir := s.IsDir(); isdir != f.isdir {
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t.Errorf("%v directory, got: %v, expected: %v", file.Name(), isdir, f.isdir)
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}
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if size := s.Size(); size != f.size {
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t.Errorf("%v size, got: %v, expected: %v", file.Name(), size, f.size)
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}
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}
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}
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func TestRead(t *testing.T) {
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for _, f := range files {
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if !f.exists {
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continue
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}
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file, err := afs.Open(f.name)
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if err != nil {
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t.Fatalf("opening %v: %v", f.name, err)
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}
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buf := make([]byte, 8)
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n, err := file.Read(buf)
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if err != nil {
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if f.isdir && (err != syscall.EISDIR) {
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t.Errorf("%v got error %v, expected EISDIR", f.name, err)
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} else if !f.isdir {
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t.Errorf("%v: %v", f.name, err)
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}
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} else if n != 8 {
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t.Errorf("%v: got %d read bytes, expected 8", f.name, n)
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} else if string(buf) != f.content {
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t.Errorf("%v: got <%s>, expected <%s>", f.name, f.content, string(buf))
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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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for _, f := range files {
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if !f.exists {
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continue
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}
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file, err := afs.Open(f.name)
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if err != nil {
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t.Fatalf("opening %v: %v", f.name, err)
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}
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buf := make([]byte, 8)
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n, err := file.ReadAt(buf, 4092)
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if err != nil {
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if f.isdir && (err != syscall.EISDIR) {
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t.Errorf("%v got error %v, expected EISDIR", f.name, err)
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} else if !f.isdir {
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t.Errorf("%v: %v", f.name, err)
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}
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} else if n != 8 {
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t.Errorf("%v: got %d read bytes, expected 8", f.name, n)
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} else if string(buf) != f.contentAt4k {
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t.Errorf("%v: got <%s>, expected <%s>", f.name, f.contentAt4k, string(buf))
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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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for _, f := range files {
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if !f.exists {
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continue
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}
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file, err := afs.Open(f.name)
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if err != nil {
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t.Fatalf("opening %v: %v", f.name, err)
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}
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tests := []struct {
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offin int64
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whence int
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offout int64
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}{
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{0, io.SeekStart, 0},
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{10, io.SeekStart, 10},
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{1, io.SeekCurrent, 11},
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{10, io.SeekCurrent, 21},
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{0, io.SeekEnd, f.size},
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{-1, io.SeekEnd, f.size - 1},
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}
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for _, s := range tests {
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n, err := file.Seek(s.offin, s.whence)
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if err != nil {
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if f.isdir && err == syscall.EISDIR {
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continue
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}
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t.Errorf("%v: %v", f.name, err)
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}
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if n != s.offout {
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t.Errorf("%v: (off: %v, whence: %v): got %v, expected %v", f.name, s.offin, s.whence, n, s.offout)
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}
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}
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}
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}
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func TestName(t *testing.T) {
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for _, f := range files {
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if !f.exists {
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continue
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}
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file, err := afs.Open(f.name)
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if err != nil {
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t.Fatalf("opening %v: %v", f.name, err)
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}
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n := file.Name()
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if n != filepath.FromSlash(f.name) {
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t.Errorf("got: %v, expected: %v", n, filepath.FromSlash(f.name))
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}
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}
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}
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func TestClose(t *testing.T) {
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for _, f := range files {
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if !f.exists {
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continue
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}
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file, err := afs.Open(f.name)
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if err != nil {
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t.Fatalf("opening %v: %v", f.name, err)
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}
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err = file.Close()
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if err != nil {
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t.Errorf("%v: %v", f.name, err)
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}
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err = file.Close()
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if err == nil {
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t.Errorf("%v: closing twice should return an error", f.name)
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}
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buf := make([]byte, 8)
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n, err := file.Read(buf)
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if n != 0 || err == nil {
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t.Errorf("%v: could read from a closed file", f.name)
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}
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n, err = file.ReadAt(buf, 256)
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if n != 0 || err == nil {
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t.Errorf("%v: could readAt from a closed file", f.name)
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}
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off, err := file.Seek(0, io.SeekStart)
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if off != 0 || err == nil {
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t.Errorf("%v: could seek from a closed file", f.name)
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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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for _, f := range files {
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file, err := afs.OpenFile(f.name, os.O_RDONLY, 0o400)
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if !f.exists {
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if !errors.Is(err, syscall.ENOENT) {
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t.Errorf("%v: got %v, expected%v", f.name, err, syscall.ENOENT)
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}
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continue
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}
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if err != nil {
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t.Fatalf("%v: %v", f.name, err)
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}
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file.Close()
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_, err = afs.OpenFile(f.name, os.O_CREATE, 0o600)
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if !errors.Is(err, syscall.EPERM) {
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t.Errorf("%v: open for write: got %v, expected %v", f.name, err, syscall.EPERM)
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}
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}
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}
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func TestFsStat(t *testing.T) {
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for _, f := range files {
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fi, err := afs.Stat(f.name)
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if !f.exists {
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if !errors.Is(err, syscall.ENOENT) {
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t.Errorf("%v: got %v, expected%v", f.name, err, syscall.ENOENT)
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}
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continue
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}
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if err != nil {
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t.Fatalf("stat %v: got error '%v'", f.name, err)
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}
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if isdir := fi.IsDir(); isdir != f.isdir {
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t.Errorf("%v directory, got: %v, expected: %v", f.name, isdir, f.isdir)
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}
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if size := fi.Size(); size != f.size {
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t.Errorf("%v size, got: %v, expected: %v", f.name, size, f.size)
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}
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}
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}
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func TestReaddir(t *testing.T) {
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for _, d := range dirs {
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dir, err := afs.Open(d.name)
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if err != nil {
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t.Fatal(err)
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}
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fi, err := dir.Readdir(0)
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if err != nil {
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t.Fatal(err)
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}
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var names []string
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for _, f := range fi {
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names = append(names, f.Name())
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}
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if !reflect.DeepEqual(names, d.children) {
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t.Errorf("%v: children, got '%v', expected '%v'", d.name, names, d.children)
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}
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fi, err = dir.Readdir(1)
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if err != nil {
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t.Fatal(err)
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}
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names = []string{}
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for _, f := range fi {
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names = append(names, f.Name())
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}
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if !reflect.DeepEqual(names, d.children[0:1]) {
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t.Errorf("%v: children, got '%v', expected '%v'", d.name, names, d.children[0:1])
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}
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}
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dir, err := afs.Open("/testFile")
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if err != nil {
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t.Fatal(err)
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}
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_, err = dir.Readdir(-1)
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if err != syscall.ENOTDIR {
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t.Fatal("Expected error")
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}
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}
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func TestReaddirnames(t *testing.T) {
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for _, d := range dirs {
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dir, err := afs.Open(d.name)
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if err != nil {
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t.Fatal(err)
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}
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names, err := dir.Readdirnames(0)
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if err != nil {
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t.Fatal(err)
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}
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if !reflect.DeepEqual(names, d.children) {
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t.Errorf("%v: children, got '%v', expected '%v'", d.name, names, d.children)
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}
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names, err = dir.Readdirnames(1)
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if err != nil {
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t.Fatal(err)
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}
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if !reflect.DeepEqual(names, d.children[0:1]) {
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t.Errorf("%v: children, got '%v', expected '%v'", d.name, names, d.children[0:1])
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}
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}
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dir, err := afs.Open("/testFile")
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if err != nil {
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t.Fatal(err)
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}
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_, err = dir.Readdir(-1)
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if err != syscall.ENOTDIR {
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t.Fatal("Expected error")
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}
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}
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func TestGlob(t *testing.T) {
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for _, s := range []struct {
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glob string
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entries []string
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}{
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{filepath.FromSlash("/*"), []string{filepath.FromSlash("/sub"), filepath.FromSlash("/testDir1"), filepath.FromSlash("/testFile")}},
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{filepath.FromSlash("*"), []string{filepath.FromSlash("sub"), filepath.FromSlash("testDir1"), filepath.FromSlash("testFile")}},
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{filepath.FromSlash("sub/*"), []string{filepath.FromSlash("sub/testDir2")}},
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{filepath.FromSlash("sub/testDir2/*"), []string{filepath.FromSlash("sub/testDir2/testFile")}},
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{filepath.FromSlash("testDir1/*"), []string{filepath.FromSlash("testDir1/testFile")}},
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} {
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entries, err := afero.Glob(afs.Fs, s.glob)
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if err != nil {
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t.Error(err)
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}
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if reflect.DeepEqual(entries, s.entries) {
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t.Logf("glob: %s: glob ok", s.glob)
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} else {
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t.Errorf("glob: %s: got %#v, expected %#v", s.glob, entries, s.entries)
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}
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}
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}
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