//go:build unix

package buildstep

import (
	"path/filepath"
	"strings"
	"syscall"
	"testing"
)

// 1479/AC3: anything but a file or a directory is refused, naming it. The rule of this repository is that no
// test makes a symlink, so the non-regular entry is a named pipe: Pack refuses a symlink on the same branch
// (filepath.Walk reports it by lstat as not regular).
func TestPackRefusesAnEntryThatIsNotAFile(t *testing.T) {
	root := fixture(t)
	pipe := filepath.Join(root, "a", "pipe")
	if err := syscall.Mkfifo(pipe, 0o644); err != nil {
		t.Fatal(err)
	}
	_, _, err := Pack(root)
	if err == nil || !strings.Contains(err.Error(), pipe) {
		t.Errorf("Pack = %v, want a refusal naming %s", err, pipe)
	}
}