Make tests more robust by updating now constantly. The issue rises wi…

…th using Lappeenranta Airport as measurement point, as it updates once per minute.

tests/test_forecast.py

@@ -6,14 +6,12 @@
 
 class TestForecast(unittest.TestCase):
     def test_lappeenranta(self):
-        now = datetime.now(tz=tzutc())
-
         f = FMI(place='Lappeenranta')
         for point in f.forecast():
-            assert point.time > now
+            assert point.time > datetime.now(tz=tzutc())
             assert isinstance(point.temperature, float)
 
         f = FMI(coordinates='%.03f,%.03f' % (61.058876, 28.186262))
         for point in f.forecast():
-            assert point.time > now
+            assert point.time > datetime.now(tz=tzutc())
             assert isinstance(point.temperature, float)

tests/test_observation.py

@@ -6,13 +6,11 @@
 
 class TestObservations(unittest.TestCase):
     def test_lappeenranta(self):
-        now = datetime.now(tz=tzutc())
-
         f = FMI(place='Lappeenranta')
         for point in f.observations():
-            assert point.time < now
+            assert point.time < datetime.now(tz=tzutc())
             assert isinstance(point.temperature, float)
 
         for point in f.observations(fmisid=101237):
-            assert point.time < now
+            assert point.time < datetime.now(tz=tzutc())
             assert isinstance(point.temperature, float)