mimic parent arguments during spawn process (#99)

tests/ahriman/application/handlers/test_handler_web.py

@@ -6,6 +6,7 @@ from pytest_mock import MockerFixture
 from ahriman.application.handlers import Web
 from ahriman.core.configuration import Configuration
 from ahriman.core.repository import Repository
+from ahriman.models.log_handler import LogHandler
 
 
 def _default_args(args: argparse.Namespace) -> argparse.Namespace:
@@ -19,6 +20,11 @@ def _default_args(args: argparse.Namespace) -> argparse.Namespace:
         argparse.Namespace: generated arguments for these test cases
     """
     args.parser = lambda: True
+    args.force = False
+    args.log_handler = None
+    args.report = True
+    args.quiet = False
+    args.unsafe = False
     return args
 
 
@@ -43,6 +49,63 @@ def test_run(args: argparse.Namespace, configuration: Configuration, repository:
     join_mock.assert_called_once_with()
 
 
+def test_extract_arguments(args: argparse.Namespace, configuration: Configuration):
+    """
+    must extract correct args
+    """
+    expected = [
+        "--architecture", "x86_64",
+        "--configuration", str(configuration.path),
+    ]
+
+    probe = _default_args(args)
+    assert list(Web.extract_arguments(probe, "x86_64", configuration)) == expected
+
+    probe.force = True
+    expected.extend(["--force"])
+    assert list(Web.extract_arguments(probe, "x86_64", configuration)) == expected
+
+    probe.log_handler = LogHandler.Console
+    expected.extend(["--log-handler", probe.log_handler.value])
+    assert list(Web.extract_arguments(probe, "x86_64", configuration)) == expected
+
+    probe.quiet = True
+    expected.extend(["--quiet"])
+    assert list(Web.extract_arguments(probe, "x86_64", configuration)) == expected
+
+    probe.unsafe = True
+    expected.extend(["--unsafe"])
+    assert list(Web.extract_arguments(probe, "x86_64", configuration)) == expected
+
+
+def test_extract_arguments_full(parser: argparse.ArgumentParser, configuration: Configuration):
+    """
+    must extract all available args except for blacklisted
+    """
+    # append all options from parser
+    args = argparse.Namespace()
+    for action in parser._actions:
+        if action.default == argparse.SUPPRESS:
+            continue
+        # extract option from the following list
+        value = action.const or \
+            next(iter(action.choices or []), None) or \
+            (not action.default if isinstance(action.default, bool) else None) or \
+            "random string"
+        if action.type is not None:
+            value = action.type(value)
+        setattr(args, action.dest, value)
+
+    assert list(Web.extract_arguments(args, "x86_64", configuration)) == [
+        "--architecture", "x86_64",
+        "--configuration", str(configuration.path),
+        "--force",
+        "--log-handler", "console",
+        "--quiet",
+        "--unsafe",
+    ]
+
+
 def test_disallow_auto_architecture_run() -> None:
     """
     must not allow auto architecture run