45 lines
1.3 KiB
Go
45 lines
1.3 KiB
Go
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package image
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import (
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"metis/pkg/inject"
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"os"
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"os/exec"
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"path/filepath"
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"testing"
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)
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// Use a disposable filesystem image to verify actual debugfs symlink semantics.
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func TestSystemdSymlinkOnExt4(t *testing.T) {
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for _, tool := range []string{"mkfs.ext4", "debugfs"} {
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if _, err := exec.LookPath(tool); err != nil {
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t.Skip("filesystem tools unavailable")
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}
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}
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fs := filepath.Join(t.TempDir(), "test.ext4")
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f, err := os.Create(fs)
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if err != nil {
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t.Fatal(err)
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}
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if err = f.Truncate(16 * 1024 * 1024); err != nil {
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t.Fatal(err)
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}
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if err = f.Close(); err != nil {
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t.Fatal(err)
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}
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if out, err := exec.Command("mkfs.ext4", "-q", "-F", fs).CombinedOutput(); err != nil {
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t.Fatalf("mkfs: %v %s", err, out)
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}
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files := []inject.FileSpec{
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{Path: "etc/systemd/system/metis-node-identity.service", Content: []byte("[Unit]\nDescription=Test\n"), Mode: 0644, RootFS: true},
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{Path: "etc/systemd/system/multi-user.target.wants/metis-node-identity.service", Symlink: "../metis-node-identity.service", RootFS: true},
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}
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for i := 0; i < 2; i++ {
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if err := writeExt4Files(fs, files); err != nil {
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t.Fatal(err)
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}
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}
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if err := verifyExt4File(fs, inject.FileSpec{Path: files[1].Path, Symlink: "../wrong.service"}, t.TempDir()); err == nil {
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t.Fatal("wrong target accepted")
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}
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}
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