cloud-init/SOURCES/tests-unittests-add-a-new-unit-test.patch

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From bb474df78bfe45ea5f05907eb710e8d5de764fc8 Mon Sep 17 00:00:00 2001
From: Ani Sinha <anisinha@redhat.com>
Date: Thu, 7 Dec 2023 21:03:13 +0530
Subject: [PATCH] tests/unittests: add a new unit test for network manager net
activator (#4672)
Some changes in behavior in network manager net activator was brought in with
the commit
d1d5166895da ("net/nm: check for presence of ifcfg files when nm connection files are absent")
This change adds some unit tests that exercizes network manager activator's
bring_up_interface() method that tests failure scenarios as well as cases
where an ifcfg file is used to bring the interface up.
Signed-off-by: Ani Sinha <anisinha@redhat.com>
---
tests/unittests/test_net_activators.py | 103 +++++++++++++++++++++++++
1 file changed, 103 insertions(+)
diff --git a/tests/unittests/test_net_activators.py b/tests/unittests/test_net_activators.py
index 2a363ec415b..d53701efafb 100644
--- a/tests/unittests/test_net_activators.py
+++ b/tests/unittests/test_net_activators.py
@@ -347,3 +347,105 @@ class TestActivatorsBringDown:
activator.bring_down_all_interfaces(network_state)
for call in m_subp.call_args_list:
assert call in expected_call_list
+
+class TestNetworkManagerActivatorBringUp:
+ @patch("cloudinit.subp.subp", return_value=("", ""))
+ @patch(
+ "cloudinit.net.network_manager.available_nm_ifcfg_rh",
+ return_value=True,
+ )
+ @patch("os.path.isfile")
+ @patch("os.path.exists", return_value=True)
+ def test_bring_up_interface_no_nm_conn(
+ self, m_exists, m_isfile, m_plugin, m_subp
+ ):
+ """
+ There is no network manager connection file but ifcfg-rh plugin is
+ present and ifcfg interface config files are also present. In this
+ case, we should use ifcfg files.
+ """
+
+ def fake_isfile_no_nmconn(filename):
+ return False if filename.endswith(".nmconnection") else True
+
+ m_isfile.side_effect = fake_isfile_no_nmconn
+
+ expected_call_list = [
+ (
+ (
+ [
+ "nmcli",
+ "connection",
+ "load",
+ "".join(
+ [
+ "/etc/sysconfig/network-scripts/ifcfg-eth0",
+ ]
+ ),
+ ],
+ ),
+ {},
+ ),
+ (
+ (
+ [
+ "nmcli",
+ "connection",
+ "up",
+ "filename",
+ "".join(
+ [
+ "/etc/sysconfig/network-scripts/ifcfg-eth0",
+ ]
+ ),
+ ],
+ ),
+ {},
+ ),
+ ]
+
+ index = 0
+ assert NetworkManagerActivator.bring_up_interface("eth0")
+ for call in m_subp.call_args_list:
+ assert call == expected_call_list[index]
+ index += 1
+
+ @patch("cloudinit.subp.subp", return_value=("", ""))
+ @patch(
+ "cloudinit.net.network_manager.available_nm_ifcfg_rh",
+ return_value=False,
+ )
+ @patch("os.path.isfile")
+ @patch("os.path.exists", return_value=True)
+ def test_bring_up_interface_no_plugin_no_nm_conn(
+ self, m_exists, m_isfile, m_plugin, m_subp
+ ):
+ """
+ The ifcfg-rh plugin is absent and nmconnection file is also
+ not present. In this case, we can't use ifcfg file and the
+ interface bring up should fail.
+ """
+
+ def fake_isfile_no_nmconn(filename):
+ return False if filename.endswith(".nmconnection") else True
+
+ m_isfile.side_effect = fake_isfile_no_nmconn
+ assert not NetworkManagerActivator.bring_up_interface("eth0")
+
+ @patch("cloudinit.subp.subp", return_value=("", ""))
+ @patch(
+ "cloudinit.net.network_manager.available_nm_ifcfg_rh",
+ return_value=True,
+ )
+ @patch("os.path.isfile", return_value=False)
+ @patch("os.path.exists", return_value=True)
+ def test_bring_up_interface_no_conn_file(
+ self, m_exists, m_isfile, m_plugin, m_subp
+ ):
+ """
+ Neither network manager connection files are present nor
+ ifcfg files are present. Even if ifcfg-rh plugin is present,
+ we can not bring up the interface. So bring_up_interface()
+ should fail.
+ """
+ assert not NetworkManagerActivator.bring_up_interface("eth0")