34324031cb
Signed-off-by: Adrian Cole <adrian@tetrate.io> Signed-off-by: Edoardo Vacchi <evacchi@users.noreply.github.com> Co-authored-by: Edoardo Vacchi <evacchi@users.noreply.github.com>
59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
package sysfs
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import (
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"os"
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"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 TestUnlink(t *testing.T) {
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t.Run("doesn't exist", func(t *testing.T) {
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name := "non-existent"
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errno := Unlink(name)
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require.EqualErrno(t, syscall.ENOENT, errno)
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})
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t.Run("target: dir", func(t *testing.T) {
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tmpDir := t.TempDir()
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dir := path.Join(tmpDir, "dir")
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require.NoError(t, os.Mkdir(dir, 0o700))
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errno := Unlink(dir)
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require.EqualErrno(t, syscall.EISDIR, errno)
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require.NoError(t, os.Remove(dir))
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})
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t.Run("target: symlink to dir", func(t *testing.T) {
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tmpDir := t.TempDir()
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// Create link target dir.
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subDirRealPath := path.Join(tmpDir, "subdir")
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require.NoError(t, os.Mkdir(subDirRealPath, 0o700))
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// Create a symlink to the subdirectory.
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const symlinkName = "symlink-to-dir"
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require.NoError(t, os.Symlink("subdir", symlinkName))
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// Unlinking the symlink should suceed.
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errno := Unlink(symlinkName)
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require.EqualErrno(t, 0, errno)
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})
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t.Run("file exists", func(t *testing.T) {
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tmpDir := t.TempDir()
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name := path.Join(tmpDir, "unlink")
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require.NoError(t, os.WriteFile(name, []byte{}, 0o600))
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require.EqualErrno(t, 0, Unlink(name))
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_, err := os.Stat(name)
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require.Error(t, err)
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})
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}
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