Added utility to serve up the test questions

src/testing.py

@@ -0,0 +1,39 @@
+import json
+import os
+
+from random import choices
+from typing import List
+
+from src.common import data_dir
+
+
+class TestGenerator:
+    """
+    Wrapper to hold testing questions and serve up examples
+    """
+    questions: List[str] = None
+
+    @classmethod
+    def load_questions(cls, reload=False) -> None:
+        """
+        Load the available questions from the json file.
+        Default to not re-loading if already done, but allow for the option to do so
+        """
+        if cls.questions is not None and not reload:
+            return
+        question_file = os.path.join(data_dir, 'json', 'test_questions.json')
+        with open(question_file, 'r') as f:
+            question_json = json.load(f)
+        cls.questions = question_json['questions']
+
+    @classmethod
+    def question_count(cls) -> int:
+        cls.load_questions()
+        return len(cls.questions)
+
+    @classmethod
+    def get_random_questions(cls, n: int):
+        """
+        Return n random questions
+        """
+        return choices(cls.questions, k=n)