feat(go): add Phase 1 parity sidecar

go-agent/internal/system/state_test.go

@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package system
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestCaptureUsesInjectableProcRoot(t *testing.T) {
+	root := t.TempDir()
+	proc := filepath.Join(root, "42")
+	if err := os.Mkdir(proc, 0o700); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(proc, "comm"), []byte("bash\n"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(proc, "cmdline"), []byte("bash\x00-i\x00"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.Symlink("/tmp/x (deleted)", filepath.Join(proc, "exe")); err != nil {
+		t.Fatal(err)
+	}
+	state, err := Capture(root)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(state.Processes) != 1 {
+		t.Fatalf("unexpected processes: %#v", state.Processes)
+	}
+	got := state.Processes[0]
+	if got.PID != 42 || got.Comm != "bash" || got.Cmdline != "bash -i" || got.Exe != "/tmp/x (deleted)" {
+		t.Fatalf("unexpected process: %#v", got)
+	}
+}