38 lines
1.5 KiB
Go
38 lines
1.5 KiB
Go
package main
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import (
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"os"
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"path/filepath"
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"strings"
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"testing"
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)
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// A relative exit-marker command passes os.Stat and is then refused by systemd when the FIRST run
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// tries to start — measured on systemd 259: "neither a valid executable name nor an absolute path",
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// which fails the whole unit. The platform then claims the attempt, fails to spawn, gives the claim
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// back and repeats on every sweep, so the only symptom is that nothing ever runs (register row
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// PD-165). Refused at boot instead, where an operator is watching, exactly as StateDir is.
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//
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// Mutation caught: dropping the filepath.IsAbs guard and relying on os.Stat.
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func TestARelativeExitMarkerCommandIsRefusedAtBoot(t *testing.T) {
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dir := t.TempDir()
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bin := filepath.Join(dir, "tmplatformctl")
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if err := os.WriteFile(bin, []byte("#!/bin/sh\n"), 0o755); err != nil {
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t.Fatal(err)
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}
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// The same file, named relatively from a working directory where it really is present: os.Stat
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// says yes and systemd says no, which is the whole of the defect.
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t.Chdir(dir)
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if _, err := markerArgv("./tmplatformctl"); err == nil {
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t.Fatal("a relative exit-marker command was accepted; systemd refuses it and every run would fail to start")
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} else if !strings.Contains(err.Error(), "absolute") {
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t.Errorf("the refusal does not name the cause: %v", err)
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}
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argv, err := markerArgv(bin)
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if err != nil {
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t.Fatalf("an absolute command was refused: %v", err)
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}
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if len(argv) != 2 || argv[0] != bin || argv[1] != "exit-marker" {
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t.Errorf("argv = %v", argv)
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}
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}
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