CI: Add new test to cover lines handling unkown command line options

[bernhardkaindl]

CI: Add new test to cover lines handling unknown command line options

• Covering the lines which handle unknown command line options is needed in preparation for upcoming changes where the code coverage appears to be behaving strangely.
• And of course it raises the code coverage a little more.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (5f8bafd) 84.90% compared to head (c781292) 85.27%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #50 +/- ## ========================================== + Coverage 84.90% 85.27% +0.36% ========================================== Files 15 15 Lines 1928 1942 +14 ========================================== + Hits 1637 1656 +19 + Misses 291 286 -5 ``` | [Flag](https://app.codecov.io/gh/xenserver/status-report/pull/50/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=xenserver) | Coverage Δ | | |---|---|---| | [python2.7](https://app.codecov.io/gh/xenserver/status-report/pull/50/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=xenserver) | `83.78% <100.00%> (+0.37%)` | :arrow_up: | | [python3.10.13](https://app.codecov.io/gh/xenserver/status-report/pull/50/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=xenserver) | `84.15% <100.00%> (+0.40%)` | :arrow_up: | | [unittest](https://app.codecov.io/gh/xenserver/status-report/pull/50/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=xenserver) | `84.15% <100.00%> (+0.40%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=xenserver#carryforward-flags-in-the-pull-request-comment) to find out more.

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[github-actions[bot]]

Pytest Code coverage comment for Python 2.7

File	Stmts	Miss	Cover	Missing
xen-bugtool	1523	292	80%	77–79, 84, 95, 100–101, 410, 486, 491, 511, 517, 540, 602, 620, 692–693, 707, 711, 726–727, 733–734, 739, 749, 754, 757–760, 766, 771–773, 776–777, 780–781, 784, 825–827, 962–976, 978–987, 1048, 1056, 1173, 1175, 1179–1180, 1204, 1222, 1225–1227, 1230–1234, 1237–1238, 1242–1244, 1250–1256, 1259–1263, 1265–1281, 1284–1292, 1295–1296, 1298, 1300–1301, 1303–1311, 1314, 1316–1319, 1321, 1323–1324, 1358, 1386, 1401, 1409–1410, 1414–1416, 1418, 1425, 1427–1431, 1433, 1463–1465, 1467–1472, 1475–1479, 1483–1484, 1486, 1503–1504, 1506, 1508–1509, 1511–1513, 1515–1522, 1524–1529, 1533–1534, 1536, 1538, 1540, 1556–1557, 1559, 1561–1563, 1566–1567, 1569, 1571–1573, 1576–1577, 1579, 1581–1584, 1587–1597, 1600–1604, 1613, 1626, 1636, 1640, 1675–1677, 1750, 1785, 1824, 1884, 1927, 1930–1931, 1969, 1976, 1982, 1984–1987, 1990–2000, 2091–2093, 2096–2098, 2110, 2129–2131, 2171–2175, 2187, 2205
integration
__init__.py	0	0	100%
conftest.py	18	0	100%
namespace_container.py	35	1	97%	85
test_system_load.py	18	0	100%
test_xenserverconfig.py	13	0	100%
utils.py	61	4	93%	18, 31, 66, 104
mocks/xen
__init__.py	0	0	100%
mocks/xen/lowlevel
__init__.py	0	0	100%
mocks/xen/lowlevel/xc
__init__.py	5	0	100%
unit
__init_\.py	0	0	100%
conftest.py	28	9	67%	34, 36–40, 42–44
test_dir_list.py	11	0	100%
test_fs_funcs.py	10	0	100%
test_load_plugins.py	5	0	100%
test_main.py	115	8	93%	186, 263–265, 267–270
test_output.py	64	0	100%
test_process_output.py	11	0	100%
test_xapidb_filter.py	19	0	100%
TOTAL	1936	314	83%

Tests	Skipped	Failures	Errors	Time
20	1 :zzz:	0 :x:	0 :fire:	2.205s :stopwatch:

[github-actions[bot]]

Python3 coverage comment from https://github.com/marketplace/actions/pytest-coverage-comment

File	Stmts	Miss	Cover	Missing
__init__.py	0	0	100%
conftest.py	32	0	100%
test_dir_list.py	11	0	100%
test_fs_funcs.py	10	0	100%
test_load_plugins.py	5	0	100%
test_main.py	117	0	100%
test_output.py	64	0	100%
test_process_output.py	11	0	100%
test_xapidb_filter.py	19	0	100%
xen-bugtool	1523	284	81%	95, 100–101, 410, 491, 511, 517, 540, 602, 620, 692–693, 707, 711, 726–727, 733–734, 739, 749, 754, 766, 771–773, 776–777, 780–781, 784, 825–827, 846, 962–976, 978–987, 1048, 1056, 1173, 1175, 1179–1180, 1204, 1222, 1225–1227, 1230–1234, 1237–1238, 1242–1244, 1250–1256, 1259–1263, 1265–1281, 1284–1292, 1295–1296, 1298, 1300–1301, 1303–1311, 1314, 1316–1319, 1321, 1323–1324, 1358, 1386, 1401, 1409–1410, 1414–1416, 1418, 1425, 1427–1431, 1433, 1463–1465, 1467–1472, 1475–1479, 1483–1484, 1486, 1503–1504, 1506, 1508–1509, 1511–1513, 1515–1522, 1524–1529, 1533–1534, 1536, 1538, 1540, 1556–1557, 1559, 1561–1563, 1566–1567, 1569, 1571–1573, 1576–1577, 1579, 1581–1584, 1587–1597, 1600–1604, 1614, 1626, 1636, 1640, 1675–1677, 1785, 1809, 1824, 1884, 1927, 1930–1931, 1969, 1976, 1982, 1984–1987, 1990–2000, 2091–2093, 2096–2098, 2110, 2129–2131, 2171–2175, 2187, 2205
TOTAL	1792	284	84%

Tests	Skipped	Failures	Errors	Time
16	0 :zzz:	0 :x:	0 :fire:	1.085s :stopwatch: