1 files changed, 106 insertions, 0 deletions
diff --git a/stacks/daemon/test_proto.py b/stacks/daemon/test_proto.py
new file mode 100644
index 0000000..50ced93
--- /dev/null
+++ b/stacks/daemon/test_proto.py
@@ -0,0 +1,106 @@
+#!/usr/bin/env python3
+"""Offline smoke test for max25d M25/1 protocol."""
+import socket
+import subprocess
+import sys
+import time
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parents[2]
+DAEMON = ROOT / "stacks/daemon/max25d"
+INI = ROOT / "share/max25/max25d.ini.example"
+
+
+class LineReader:
+    def __init__(self, sock: socket.socket) -> None:
+        self.sock = sock
+        self.buf = b""
+
+    def read(self, timeout: float = 5.0) -> str:
+        self.sock.settimeout(timeout)
+        while b"\n" not in self.buf:
+            chunk = self.sock.recv(4096)
+            if not chunk:
+                raise RuntimeError("connection closed")
+            self.buf += chunk
+        line, self.buf = self.buf.split(b"\n", 1)
+        return line.decode("utf-8")
+
+
+def free_port() -> int:
+    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    sock.bind(("127.0.0.1", 0))
+    port = sock.getsockname()[1]
+    sock.close()
+    return port
+
+
+def wait_for_port(port: int, proc: subprocess.Popen[str], timeout: float = 8.0) -> bool:
+    deadline = time.time() + timeout
+    while time.time() < deadline:
+        if proc.poll() is not None:
+            return False
+        try:
+            probe = socket.create_connection(("127.0.0.1", port), timeout=0.25)
+            probe.close()
+            return True
+        except OSError:
+            time.sleep(0.1)
+    return False
+
+
+def main() -> int:
+    port = free_port()
+    proc = subprocess.Popen(
+        [str(DAEMON), "--no-stack", "--no-serial", "-c", str(INI), "--tcp-port", str(port)],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.PIPE,
+        text=True,
+    )
+    if not wait_for_port(port, proc):
+        err = proc.stderr.read() if proc.stderr else ""
+        proc.terminate()
+        proc.wait(timeout=3)
+        print(f"FAIL: max25d not listening on {port}: {err.strip()}", file=sys.stderr)
+        return 1
+    try:
+        sock = socket.create_connection(("127.0.0.1", port), timeout=3)
+    except OSError as exc:
+        proc.terminate()
+        proc.wait(timeout=3)
+        print(f"FAIL: connect: {exc}", file=sys.stderr)
+        return 1
+
+    reader = LineReader(sock)
+    try:
+        assert reader.read() == "OK"
+        status = reader.read()
+        assert status.startswith("STATUS ")
+
+        sock.sendall(b"SET CALLERID DG1ABC\n")
+        assert reader.read() == "OK"
+
+        sock.sendall(b"CONNECT\n")
+        assert reader.read() == "EVENT connected"
+        assert reader.read() == "OK"
+
+        sock.sendall(b"SEND 73\n")
+        rx = reader.read()
+        assert rx.startswith("RX ")
+        assert reader.read() == "OK"
+
+        sock.sendall(b"GET STATUS\n")
+        st = reader.read()
+        assert "callerid=DG1ABC" in st
+        assert reader.read() == "OK"
+
+        print("OK: max25d protocol smoke")
+        return 0
+    finally:
+        sock.close()
+        proc.terminate()
+        proc.wait(timeout=5)
+
+
+if __name__ == "__main__":
+    sys.exit(main())