agent-exec transport d746852ae50f236002975c61a064caa9/397c60bd1367

tests/_port_alloc.py

@@ -0,0 +1,13 @@
+"""Shared free-port helper for svc tests (not a test module)."""
+import socket
+
+
+def free_test_port():
+    """Return a port the kernel reports free on 127.0.0.1 right now.
+
+    Each call opens a fresh reservation and closes it before returning, so the
+    caller (e.g. `svc deploy`) can bind the port itself. Ports are not pooled.
+    """
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as reservation:
+        reservation.bind(("127.0.0.1", 0))
+        return reservation.getsockname()[1]