enforce a sane default OPT_NETWORK_TIMEOUT for LDAP connections

see: #5208

awx/sso/tests/functional/test_ldap.py

@@ -0,0 +1,24 @@
+from django.test.utils import override_settings
+import ldap
+import pytest
+
+from awx.sso.backends import LDAPSettings
+
+
+@override_settings(AUTH_LDAP_CONNECTION_OPTIONS = {ldap.OPT_NETWORK_TIMEOUT: 60})
+@pytest.mark.django_db
+def test_ldap_with_custom_timeout():
+    settings = LDAPSettings()
+    assert settings.CONNECTION_OPTIONS == {
+        ldap.OPT_NETWORK_TIMEOUT: 60
+    }
+
+
+@override_settings(AUTH_LDAP_CONNECTION_OPTIONS = {ldap.OPT_REFERRALS: 0})
+@pytest.mark.django_db
+def test_ldap_with_missing_timeout():
+    settings = LDAPSettings()
+    assert settings.CONNECTION_OPTIONS == {
+        ldap.OPT_REFERRALS: 0,
+        ldap.OPT_NETWORK_TIMEOUT: 30
+    }