tests/functional: expose sys.argv to unittest.main

With this we can call the supported we can take advantage of the
argument the module supports:

  env PYTHONPATH=/home/alex/lsrc/qemu.git/python:/home/alex/lsrc/qemu.git/tests/functional ./pyvenv/bin/python /home/alex/lsrc/qemu.git/tests/functional/test_aarch64_kvm.py --help
  usage: test_aarch64_kvm.py [-h] [-v] [-q] [--locals] [--durations N] [-f] [-c] [-b] [-k TESTNAMEPATTERNS] [tests ...]

  positional arguments:
    tests                a list of any number of test modules, classes and test methods.

  options:
    -h, --help           show this help message and exit
    -v, --verbose        Verbose output
    -q, --quiet          Quiet output
    --locals             Show local variables in tracebacks
    --durations N        Show the N slowest test cases (N=0 for all)
    -f, --failfast       Stop on first fail or error
    -c, --catch          Catch Ctrl-C and display results so far
    -b, --buffer         Buffer stdout and stderr during tests
    -k TESTNAMEPATTERNS  Only run tests which match the given substring

  Examples:
    test_aarch64_kvm.py test_module               - run tests from test_module
    test_aarch64_kvm.py module.TestClass          - run tests from module.TestClass
    test_aarch64_kvm.py module.Class.test_method  - run specified test method
    test_aarch64_kvm.py path/to/test_file.py      - run tests from test_file.py

  usage: test_aarch64_kvm.py discover [-h] [-v] [-q] [--locals] [--durations N] [-f] [-c] [-b] [-k TESTNAMEPATTERNS] [-s START] [-p PATTERN] [-t TOP]

  options:
    -h, --help            show this help message and exit
    -v, --verbose         Verbose output
    -q, --quiet           Quiet output
    --locals              Show local variables in tracebacks
    --durations N         Show the N slowest test cases (N=0 for all)
    -f, --failfast        Stop on first fail or error
    -c, --catch           Catch Ctrl-C and display results so far
    -b, --buffer          Buffer stdout and stderr during tests
    -k TESTNAMEPATTERNS   Only run tests which match the given substring
    -s, --start-directory START
                          Directory to start discovery ('.' default)
    -p, --pattern PATTERN
                          Pattern to match tests ('test*.py' default)
    -t, --top-level-directory TOP
                          Top level directory of project (defaults to start directory)

  For test discovery all test modules must be importable from the top level directory of the project.

Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-ID: <20250725154517.3523095-15-alex.bennee@linaro.org>

diff --git a/tests/functional/qemu_test/testcase.py b/tests/functional/qemu_test/testcase.py
index 2a78e735f1604f21efd18e38ee0d586496d6b38c..5caf7b13fe36b16e3faf828ad63cd2f39c51866a 100644 (file)
--- a/tests/functional/qemu_test/testcase.py
+++ b/tests/functional/qemu_test/testcase.py
@@ -249,7 +249,7 @@ class QemuBaseTest(unittest.TestCase):
         tr = pycotap.TAPTestRunner(message_log = pycotap.LogMode.LogToError,
                                    test_output_log = pycotap.LogMode.LogToError)
         res = unittest.main(module = None, testRunner = tr, exit = False,
-                            argv=["__dummy__", path])
+                            argv=[sys.argv[0], path] + sys.argv[1:])
         for (test, message) in res.result.errors + res.result.failures:
 
             if hasattr(test, "log_filename"):