83e4b66659
This consolidates internal code to syscallfs, which removes the fs.FS specific path rules, except when adapting one to syscallfs. For example, this allows the underlying filesystem to decide if relative paths are supported or not, as well any EINVAL related concerns. Signed-off-by: Adrian Cole <adrian@tetrate.io>
100 lines
2.1 KiB
Go
100 lines
2.1 KiB
Go
package syscallfs
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import (
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"errors"
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"io/fs"
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"os"
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pathutil "path"
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"syscall"
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"testing"
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"github.com/tetratelabs/wazero/internal/testing/require"
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)
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func TestAdapt_MkDir(t *testing.T) {
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dir := t.TempDir()
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testFS := Adapt(os.DirFS(dir))
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err := testFS.Mkdir("mkdir", fs.ModeDir)
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require.Equal(t, syscall.ENOSYS, err)
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}
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func TestAdapt_Rename(t *testing.T) {
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tmpDir := t.TempDir()
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testFS := Adapt(os.DirFS(tmpDir))
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file1 := "file1"
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file1Path := pathutil.Join(tmpDir, file1)
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file1Contents := []byte{1}
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err := os.WriteFile(file1Path, file1Contents, 0o600)
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require.NoError(t, err)
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file2 := "file2"
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file2Path := pathutil.Join(tmpDir, file2)
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file2Contents := []byte{2}
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err = os.WriteFile(file2Path, file2Contents, 0o600)
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require.NoError(t, err)
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err = testFS.Rename(file1, file2)
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require.Equal(t, syscall.ENOSYS, err)
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}
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func TestAdapt_Rmdir(t *testing.T) {
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dir := t.TempDir()
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testFS := Adapt(os.DirFS(dir))
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path := "rmdir"
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realPath := pathutil.Join(dir, path)
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require.NoError(t, os.Mkdir(realPath, 0o700))
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err := testFS.Rmdir(path)
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require.Equal(t, syscall.ENOSYS, err)
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}
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func TestAdapt_Unlink(t *testing.T) {
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dir := t.TempDir()
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testFS := Adapt(os.DirFS(dir))
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path := "unlink"
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realPath := pathutil.Join(dir, path)
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require.NoError(t, os.WriteFile(realPath, []byte{}, 0o600))
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err := testFS.Unlink(path)
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require.Equal(t, syscall.ENOSYS, err)
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}
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func TestAdapt_Utimes(t *testing.T) {
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dir := t.TempDir()
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testFS := Adapt(os.DirFS(dir))
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path := "utimes"
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realPath := pathutil.Join(dir, path)
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require.NoError(t, os.WriteFile(realPath, []byte{}, 0o600))
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err := testFS.Utimes(path, 1, 1)
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require.Equal(t, syscall.ENOSYS, err)
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}
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func TestAdapt_Open_Read(t *testing.T) {
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tmpDir := t.TempDir()
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// Create a subdirectory, so we can test reads outside the FS root.
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tmpDir = pathutil.Join(tmpDir, t.Name())
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require.NoError(t, os.Mkdir(tmpDir, 0o700))
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testFS := Adapt(os.DirFS(tmpDir))
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testFS_Open_Read(t, tmpDir, testFS)
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t.Run("path outside root invalid", func(t *testing.T) {
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_, err := testFS.OpenFile("../foo", os.O_RDONLY, 0)
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// fs.FS doesn't allow relative path lookups
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require.True(t, errors.Is(err, fs.ErrInvalid))
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})
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}
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