1 files changed, 52 insertions, 0 deletions
diff --git a/src/tests/extension_model_test.py b/src/tests/extension_model_test.py
new file mode 100644
index 0000000..651c8e7
--- /dev/null
+++ b/src/tests/extension_model_test.py
@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+
+from argparse import (
+  ArgumentParser,
+)
+from enum import (
+  Enum,
+)
+from sys import (
+  argv,
+  exit,
+)
+
+
+class Action(Enum):
+  """An action to perform."""
+  NITROCLI = "nitrocli"
+  MODEL = "model"
+  VERBOSITY = "verbosity"
+
+  @classmethod
+  def all(cls):
+    """Return the list of all the enum members' values."""
+    return [x.value for x in cls.__members__.values()]
+
+
+def main(args):
+  """The extension's main function."""
+  parser = ArgumentParser()
+  parser.add_argument(choices=Action.all(), dest="what")
+  parser.add_argument("--nitrocli", action="store", default=None)
+  parser.add_argument("--model", action="store", default=None)
+  # We deliberately store the argument to this option as a string
+  # because we can differentiate between None and a valid value, in
+  # order to verify that it really is supplied.
+  parser.add_argument("--verbosity", action="store", default=None)
+
+  namespace = parser.parse_args(args[1:])
+  if namespace.what == Action.NITROCLI.value:
+    print(namespace.nitrocli)
+  elif namespace.what == Action.MODEL.value:
+    print(namespace.model)
+  elif namespace.what == Action.VERBOSITY.value:
+    print(namespace.verbosity)
+  else:
+    return 1
+
+  return 0
+
+
+if __name__ == "__main__":
+  exit(main(argv))