Modify test to add date display projections

Author: Nick Canzoneri

tests/test_app.py

@@ -288,6 +288,7 @@ def test_chart_descriptions():
     # census chart
     census_df = pd.read_csv('tests/census_df.csv')
     census_df = census_df.rename(columns={'hosp': 'Hospitalized', 'icu': 'ICU', 'vent': 'Ventilated'})
+    PARAM.as_date = True
     chart = admitted_patients_chart(alt, census_df, PARAM)
     description = chart_descriptions(chart)