Remove dotenv, add util.environment and test of variable load

tests/test_util.py

@@ -1,16 +1,14 @@
 """Tests for the `util` module."""
 from datetime import datetime
-from dotenv import load_dotenv
 
 import pytest
 import util.convert as uc
 import util.drawing as ud
+import util.environment as ue
 import util.scrape as sc
 import util.odds as uo
 from data.database import PowerballDraw, MegaMillionsDraw
 
-load_dotenv()
-
 
 def test_convert_string_to_integer() -> None:
     """Test string value conversion to integer."""
@@ -99,3 +97,10 @@ def test_get_mega_millions_object() -> None:
     test_record = MegaMillionsDraw(draw_date=datetime(2010, 2, 2).date(), main_ball1=6, main_ball2=7,
         main_ball3=26, main_ball4=27, main_ball5=49, mega_ball=9, megaplier=4)
     assert data_value == test_record
+
+
+def test_load_environment_variables() -> None:
+    """test loading environment variables for script use"""
+    env_vars = ue.load_environment_variables()
+    assert type(env_vars) == dict
+    assert len(env_vars) == 23