fix: make no buffer space available when adding multicast memberships…

fix: make no buffer space available when adding multicast memberships… · python-zeroconf/python-zeroconf@f377d5c

@@ -4,6 +4,7 @@

4455import errno66import socket7+import sys78import unittest89from unittest.mock import MagicMock, Mock, patch910

@@ -181,7 +182,7 @@ def test_set_mdns_port_socket_options_for_ip_version():

181182netutils.set_mdns_port_socket_options_for_ip_version(sock, ("",), r.IPVersion.V4Only)182183183184184-def test_add_multicast_member():185+def test_add_multicast_member(caplog: pytest.LogCaptureFixture) -> None:185186sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)186187interface = "127.0.0.1"187188

@@ -221,6 +222,26 @@ def test_add_multicast_member():

221222with patch("socket.socket.setsockopt"):222223assert netutils.add_multicast_member(sock, interface) is True223224225+# Ran out of IGMP memberships is forgiving and logs about igmp_max_memberships on linux226+caplog.clear()227+with (228+patch.object(sys, "platform", "linux"),229+patch("socket.socket.setsockopt", side_effect=OSError(errno.ENOBUFS, "No buffer space available")),230+ ):231+assert netutils.add_multicast_member(sock, interface) is False232+assert "No buffer space available" in caplog.text233+assert "net.ipv4.igmp_max_memberships" in caplog.text234+235+# Ran out of IGMP memberships is forgiving and logs236+caplog.clear()237+with (238+patch.object(sys, "platform", "darwin"),239+patch("socket.socket.setsockopt", side_effect=OSError(errno.ENOBUFS, "No buffer space available")),240+ ):241+assert netutils.add_multicast_member(sock, interface) is False242+assert "No buffer space available" in caplog.text243+assert "net.ipv4.igmp_max_memberships" not in caplog.text244+224245225246def test_bind_raises_skips_address():226247"""Test bind failing in new_socket returns None on EADDRNOTAVAIL."""