45 lines
1.1 KiB
Go
45 lines
1.1 KiB
Go
//go:build darwin
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package safeio
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import (
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"errors"
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"os"
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"path/filepath"
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"testing"
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"golang.org/x/sys/unix"
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)
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func TestWriteCanonicalExclusiveClassifiesUnlinkFailureAsIndeterminate(t *testing.T) {
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root := t.TempDir()
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stage := filepath.Join(root, "stage")
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if err := os.WriteFile(stage, []byte("candidate"), 0o600); err != nil {
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t.Fatal(err)
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}
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dir, err := unix.Open(root, unix.O_RDONLY|unix.O_DIRECTORY, 0)
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if err != nil {
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t.Fatal(err)
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}
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defer unix.Close(dir)
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fd, err := unix.Openat(dir, "stage", unix.O_RDWR, 0)
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if err != nil {
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t.Fatal(err)
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}
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file := os.NewFile(uintptr(fd), "stage")
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if file == nil {
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t.Fatal("os.NewFile returned nil")
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}
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defer file.Close()
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var staged unix.Stat_t
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if err := unix.Fstat(fd, &staged); err != nil {
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t.Fatal(err)
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}
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oldUnlink := darwinUnlinkat
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t.Cleanup(func() { darwinUnlinkat = oldUnlink })
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darwinUnlinkat = func(int, string, int) error { return errors.New("injected unlink failure") }
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if err := cleanupDarwinStage(dir, "stage", &staged, file.Close); !errors.Is(err, ErrIndeterminateFile) {
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t.Fatalf("unlink failure = %v, want ErrIndeterminateFile", err)
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}
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}
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