[test]Fix sonic-ctrmgrd build error

[ouxlwhu]

Signed-off-by: ouxiaolong ouxiaolong@asterfusion.com

Why I did it

Sometimes, building sonic-ctrmgrd fails like this:

============================= test session starts ==============================
platform linux -- Python 3.9.2, pytest-6.0.2, py-1.10.0, pluggy-0.13.0
rootdir: /sonic/src/sonic-ctrmgrd, configfile: pytest.ini
plugins: cov-2.10.1
collected 16 items

tests/container_startup_test.py .                                        [  6%]
tests/container_test.py ......                                           [ 43%]
tests/ctrmgr_iptables_test.py F                                          [ 50%]
tests/ctrmgr_tools_test.py .                                             [ 56%]
tests/ctrmgrd_test.py ...                                                [ 75%]
tests/kube_commands_test.py ....                                         [100%]

=================================== FAILURES ===================================
_________________________ TestIPTableUpdate.test_table _________________________

self = <tests.ctrmgr_iptables_test.TestIPTableUpdate object at 0x7f1347a0f1c0>
mock_proc = <MagicMock name='run' id='139720781667488'>

    @patch("ctrmgr_iptables.subprocess.run")
    def test_table(self, mock_proc):
        global current_rules, current_tc
    
        mock_proc.side_effect = mock_subproc_run
        for i, tc in test_data.items():
            print("----- Test: {} Start ------------------".format(i))
            current_tc = tc
            current_rules = tc["pre_rules"].copy()
    
            ctrmgr_iptables.DST_IP = ""
            ctrmgr_iptables.DST_PORT = ""
            ctrmgr_iptables.DST_FILE = os.path.join(
                    os.path.dirname(os.path.realpath(__file__)),
                    tc.get("conf_file", PROXY_FILE))
            ret = ctrmgr_iptables.iptable_proxy_rule_upd(tc["ip"], tc["port"])
            if "ret" in tc:
>               assert ret == tc["ret"]
E               AssertionError: assert '159.138.20.20:3128' == ''
E                 + 159.138.20.20:3128

tests/ctrmgr_iptables_test.py:171: AssertionError

This is because the domain name 'www.google.comx' sometimes unexpectedly resolves to an IP(an unfixed IP).

ouxl@aster241:~$ nslookup 
> www.google.comx
Server:         8.8.8.8
Address:        8.8.8.8#53

Non-authoritative answer:
Name:   www.google.comx
Address: 159.138.20.20

How I did it

Change the domain name 'www.google.comx' in the file src/sonic-ctrmgrd/tests/ctrmgr_iptables_test.py to a domain name that will never be resolved an IP address .

How to verify it

Rebuild the module completely several times

Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006
• 202012
• 202106
• 202111
• 202205

Description for the changelog

Link to config_db schema for YANG module changes

A picture of a cute animal (not mandatory but encouraged)

[linux-foundation-easycla]

The committers listed above are authorized under a signed CLA.

• ✅ login: ouxlwhu / name: Long Ou (58ae1ca)