Clean up and simplify example unit tests

Author: jrrickerson

examples/pure-hatch/tests/examplePy/test_temporal.py

@@ -13,18 +13,16 @@
 
 @pytest.fixture
 def temperatures():
-    """Pytest fixture for temperature data, used to avoid duplicate code
-    in all of our tests."""
+    """Pytest fixture for temperature data, used to avoid duplicate code in all of our tests."""
     filename = TEST_DATA / "temperatures_testdata.csv"
     df = pandas.read_csv(filename)
     return df
 
 
 def test_calc_annual_mean(temperatures):
-    """Test the calculation of the annual and total mean temperatures in the
-    data"""
-    expected_mean_1988 = temperature.fahrenheit_to_celsius(56.0)
-    expected_mean_final = temperature.fahrenheit_to_celsius(50.78252)
+    """Test the calculation of the annual and total mean temperatures in the data"""
+    expected_mean_1988 = 13.3333
+    expected_mean_final = 10.4347
 
     # Calculate the means
     df_mean, df_final = temporal.calc_annual_mean(temperatures)
@@ -36,8 +34,7 @@ def test_calc_annual_mean(temperatures):
 
 
 def test_calc_annual_mean_no_data():
-    """Negative test - test the calculation of the annual and total mean
-    temperatures in the data when given no data results in an empty result"""
+    """Negative test - test the calculation of the annual and total mean temperatures in the data when given no data results in an empty result"""
     temperatures = pandas.DataFrame(columns=("Year", "Month", "Temperature"))
 
     # Calculate the means with no data