6d53a0033a
This implements path_(create|remove)_directory path_unlink_file in wasi, particularly needed to use TinyGo tests to verify our interpretation of WASI. Use of this requires the experimental `writefs.DirFS`. Signed-off-by: Adrian Cole <adrian@tetrate.io>
143 lines
3.2 KiB
Go
143 lines
3.2 KiB
Go
package writefs
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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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"path"
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"runtime"
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"syscall"
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"testing"
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"testing/fstest"
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"github.com/tetratelabs/wazero/internal/testing/require"
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)
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var testFiles = map[string]string{
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"empty.txt": "",
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"test.txt": "animals\n",
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"sub/test.txt": "greet sub dir\n",
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"sub/sub/test.txt": "greet sub sub dir\n",
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}
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func TestDirFS_TestFS(t *testing.T) {
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if runtime.GOOS == "windows" {
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// This abstraction is a toe-hold, but we'll have to sort windows with
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// our ideal filesystem tester.
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t.Skip("TODO: windows")
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}
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dir := t.TempDir()
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require.NoError(t, os.MkdirAll(path.Join(dir, "sub", "sub"), 0o700))
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expected := make([]string, 0, len(testFiles))
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for name, data := range testFiles {
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expected = append(expected, name)
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require.NoError(t, os.WriteFile(path.Join(dir, name), []byte(data), 0o600))
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}
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if err := fstest.TestFS(DirFS(dir), expected...); err != nil {
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t.Fatal(err)
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}
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}
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func TestDirFS_MkDir(t *testing.T) {
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dir := t.TempDir()
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testFS := DirFS(dir)
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name := "mkdir"
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realPath := path.Join(dir, name)
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t.Run("doesn't exist", func(t *testing.T) {
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require.NoError(t, testFS.Mkdir(name, fs.ModeDir))
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stat, err := os.Stat(realPath)
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require.NoError(t, err)
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require.Equal(t, name, stat.Name())
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require.True(t, stat.IsDir())
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})
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t.Run("dir exists", func(t *testing.T) {
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err := testFS.Mkdir(name, fs.ModeDir)
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require.Equal(t, syscall.EEXIST, errors.Unwrap(err))
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})
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t.Run("file exists", func(t *testing.T) {
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require.NoError(t, os.Remove(realPath))
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require.NoError(t, os.Mkdir(realPath, 0o700))
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err := testFS.Mkdir(name, fs.ModeDir)
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require.Equal(t, syscall.EEXIST, errors.Unwrap(err))
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})
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}
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func TestDirFS_Rmdir(t *testing.T) {
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dir := t.TempDir()
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testFS := DirFS(dir)
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name := "rmdir"
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realPath := path.Join(dir, name)
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t.Run("doesn't exist", func(t *testing.T) {
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err := testFS.Rmdir(name)
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require.Equal(t, syscall.ENOENT, err)
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})
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t.Run("dir not empty", func(t *testing.T) {
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require.NoError(t, os.Mkdir(realPath, 0o700))
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fileInDir := path.Join(realPath, "file")
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require.NoError(t, os.WriteFile(fileInDir, []byte{}, 0o600))
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err := testFS.Rmdir(name)
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require.Equal(t, syscall.ENOTEMPTY, err)
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require.NoError(t, os.Remove(fileInDir))
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})
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t.Run("dir empty", func(t *testing.T) {
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require.NoError(t, testFS.Rmdir(name))
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_, err := os.Stat(realPath)
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require.Error(t, err)
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})
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t.Run("not directory", func(t *testing.T) {
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require.NoError(t, os.WriteFile(realPath, []byte{}, 0o600))
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err := testFS.Rmdir(name)
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require.Equal(t, syscall.ENOTDIR, err)
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require.NoError(t, os.Remove(realPath))
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})
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}
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func TestDirFS_Unlink(t *testing.T) {
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dir := t.TempDir()
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testFS := DirFS(dir)
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name := "unlink"
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realPath := path.Join(dir, name)
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t.Run("doesn't exist", func(t *testing.T) {
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err := testFS.Unlink(name)
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require.Equal(t, syscall.ENOENT, err)
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})
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t.Run("not file", func(t *testing.T) {
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require.NoError(t, os.Mkdir(realPath, 0o700))
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err := testFS.Unlink(name)
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require.Equal(t, syscall.EISDIR, err)
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require.NoError(t, os.Remove(realPath))
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})
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t.Run("file exists", func(t *testing.T) {
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require.NoError(t, os.WriteFile(realPath, []byte{}, 0o600))
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require.NoError(t, testFS.Unlink(name))
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_, err := os.Stat(realPath)
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require.Error(t, err)
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})
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}
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