question cmd: added test module

tests/test_question_cmd.py

@@ -0,0 +1,47 @@
+import unittest
+import argparse
+import tempfile
+from pathlib import Path
+from unittest.mock import MagicMock
+from chatmastermind.commands.question import create_message
+from chatmastermind.message import Message, Question
+from chatmastermind.chat import ChatDB
+
+
+class TestMessageCreate(unittest.TestCase):
+    """
+    Test if messages created by the 'question' command have
+    the correct format.
+    """
+    def setUp(self) -> None:
+        self.db_path = tempfile.TemporaryDirectory()
+        self.cache_path = tempfile.TemporaryDirectory()
+        self.chat = ChatDB.from_dir(cache_path=Path(self.cache_path.name),
+                                    db_path=Path(self.db_path.name))
+        # create arguments mock
+        self.args = MagicMock(spec=argparse.Namespace)
+        self.args.ai = None
+        self.args.model = None
+        self.args.output_tags = None
+
+    def message_list(self, tmp_dir: tempfile.TemporaryDirectory) -> list[Path]:
+        # exclude '.next'
+        return list(Path(tmp_dir.name).glob('*.[ty]*'))
+
+    def test_message_file_created(self) -> None:
+        self.args.question = "What is this?"
+        cache_dir_files = self.message_list(self.cache_path)
+        self.assertEqual(len(cache_dir_files), 0)
+        create_message(self.chat, self.args)
+        cache_dir_files = self.message_list(self.cache_path)
+        self.assertEqual(len(cache_dir_files), 1)
+        message = Message.from_file(cache_dir_files[0])
+        self.assertIsInstance(message, Message)
+        self.assertEqual(message.question, Question("What is this?"))  # type: ignore [union-attr]
+
+    def test_single_question(self) -> None:
+        self.args.question = "What is this?"
+        message = create_message(self.chat, self.args)
+        self.assertIsInstance(message, Message)
+        self.assertEqual(message.question, Question("What is this?"))
+        self.assertEqual(len(message.question.source_code()), 0)