Add extra test check

1 files changed, 5 insertions, 0 deletions

diff --git a/test_trade.py b/test_trade.py
index dab8a78..81185b0 100644
--- a/test_trade.py
+++ b/test_trade.py
@@ -23,7 +23,12 @@ class TestTrade(unittest.TestCase):
         """
         Test removing a valid amount of coins.
         """
+        coin_price_before = self.trade.price_per_coin
         self.trade.remove_coins(5.0)
+        coin_price_after = self.trade.price_per_coin
+
+        self.assertEqual(coin_price_before, coin_price_after)
+
         self.assertEqual(self.trade.amount, 5.0)
         self.assertEqual(self.trade.total_cost, 50.0)
         self.assertEqual(self.trade.price_per_coin, 10.0)