Add validation for players season totals (#294)

Author: jaebradley

tests/end to end/test_client.py

@@ -200,5 +200,27 @@ def test_2018(self):
         totals = players_season_totals(season_end_year=2018)
 
         for total in totals:
+            # TODO: @jaebradley turn this into a dataclass with validation
             self.assertIsNot("", total["name"])
-            self.assertIsNot("League Average", total["name"])
+            self.assertIsNot("League Average", total["name"])
+            self.assertTrue(total["slug"])
+            self.assertTrue(total["name"])
+            self.assertTrue(total["positions"])
+            self.assertGreater(total["age"], 0)
+            self.assertGreaterEqual(total["games_played"], 0)
+            self.assertGreaterEqual(total["games_started"], 0)
+            self.assertGreaterEqual(total["minutes_played"], 0)
+            self.assertGreaterEqual(total["made_field_goals"], 0)
+            self.assertGreaterEqual(total["attempted_field_goals"], total["made_field_goals"])
+            self.assertGreaterEqual(total["made_three_point_field_goals"], 0)
+            self.assertGreaterEqual(total["attempted_three_point_field_goals"], total["made_three_point_field_goals"])
+            self.assertGreaterEqual(total["made_free_throws"], 0)
+            self.assertGreaterEqual(total["attempted_free_throws"], total["made_free_throws"])
+            self.assertGreaterEqual(total["offensive_rebounds"], 0)
+            self.assertGreaterEqual(total["defensive_rebounds"], 0)
+            self.assertGreaterEqual(total["assists"], 0)
+            self.assertGreaterEqual(total["steals"], 0)
+            self.assertGreaterEqual(total["blocks"], 0)
+            self.assertGreaterEqual(total["turnovers"], 0)
+            self.assertGreaterEqual(total["personal_fouls"], 0)
+            self.assertGreaterEqual(total["points"], 0)