update tests to expect min_issue

Author: nmdefries

integrations/acquisition/covidcast/test_covidcast_meta_caching.py

@@ -137,6 +137,7 @@ def test_caching(self):
         'max_value': 1,
         'mean_value': 1,
         'stdev_value': 0,
+        'min_issue': 20200422,
         'max_issue': 20200423,
         'min_lag': 0,
         'max_lag': 1,

integrations/client/test_delphi_epidata.py

@@ -319,6 +319,7 @@ def test_covidcast_meta(self):
       mean_value=12.,
       max_value=22.,
       stdev_value=8.1649658, # population stdev, not sample, which is 10.
+      min_issue=DEFAULT_ISSUE,
       max_issue=DEFAULT_ISSUE + 2,
       min_lag=0,
       max_lag=0, # we didn't set lag when inputting data

integrations/server/test_covidcast_meta.py

@@ -129,6 +129,7 @@ def insert_placeholder_data(self):
               'mean_value': 15,
               'stdev_value': 5,
               'last_update': 123,
+              'min_issue': 1,
               'max_issue': 2,
               'min_lag': 0,
               'max_lag': 0,