diff --git a/tests/test_policies.py b/tests/test_policies.py
index 0a1dbf03..14241950 100644
--- a/tests/test_policies.py
+++ b/tests/test_policies.py
@@ -51,7 +51,7 @@ def handle_message(self, content, meta):
 async def test_request_messages():
     market_name = "Test"
     marketconfig = MarketConfig(
-        name=market_name,
+        market_id=market_name,
         opening_hours=rr.rrule(rr.HOURLY, dtstart=start, until=end),
         opening_duration=rd(hours=1),
         market_mechanism="pay_as_clear",
diff --git a/tests/test_policies_contracts.py b/tests/test_policies_contracts.py
index c055caf7..5fc664f9 100644
--- a/tests/test_policies_contracts.py
+++ b/tests/test_policies_contracts.py
@@ -31,7 +31,7 @@ def test_contract_functions():
     index = pd.date_range(
         start=start,
         end=end,
-        freq="H",
+        freq="h",
     )
 
     contract = {
diff --git a/tests/test_simple_market_mechanisms.py b/tests/test_simple_market_mechanisms.py
index 85197626..93913535 100644
--- a/tests/test_simple_market_mechanisms.py
+++ b/tests/test_simple_market_mechanisms.py
@@ -63,9 +63,12 @@ def test_market():
 
 async def test_simple_market_mechanism():
     for name, role in clearing_mechanisms.items():
-        for skip_name in ["complex", "redispatch"]:
+        skip = False
+        for skip_name in ["complex", "redispatch", "contract"]:
             if skip_name in name:
-                continue
+                skip = True
+        if skip:
+            continue
 
         print(name)
         market_config = copy.copy(simple_dayahead_auction_config)
diff --git a/tests/test_utils.py b/tests/test_utils.py
index da12f479..1d774321 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -279,7 +279,7 @@ def test_plot_function(mock_pyplot):
 
 
 @patch("matplotlib.pyplot.show")
-def test_plot_function(mock_pyplot):
+def test_visualize_function(mock_pyplot):
     orderbook = create_orderbook()
     i = -1
     for o in orderbook: