36bf277534
This forces all syscall functions, notably filesystem, to return numeric codes as opposed to mapping in two different areas. The result of this change is better consolidation in call sites of `sysfs.FS`, while further refactoring is needed to address consolidation of file errors. Signed-off-by: Adrian Cole <adrian@tetrate.io>
59 lines
1.2 KiB
Go
59 lines
1.2 KiB
Go
package platform
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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.Zero(t, 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.Zero(t, 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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