diff --git a/tests/test_context.py b/tests/test_context.py
index 28ac129..1a30e6c 100644
--- a/tests/test_context.py
+++ b/tests/test_context.py
@@ -739,7 +739,7 @@ def test_set_pos_ctx_data(
 
 
 def test_cancel_pending_order(ctx, pending_orders):
-    ctx.cancel_pending_order(pending_orders[0].id)
+    assert ctx.cancel_pending_order(pending_orders[0].id)
     orders = tuple(ctx.pending_orders())
     assert orders == tuple([pending_orders[1]])
 
diff --git a/tests/test_portfolio.py b/tests/test_portfolio.py
index bf813de..4dab8d6 100644
--- a/tests/test_portfolio.py
+++ b/tests/test_portfolio.py
@@ -2760,7 +2760,7 @@ def test_remove_stop():
         limit_price=None,
         stops=stops,
     )
-    portfolio.remove_stop(1)
+    assert portfolio.remove_stop(1)
     portfolio.incr_bars()
     portfolio.check_stops(DATE_2, price_scope)
     assert len(portfolio.long_positions) == 1
diff --git a/tests/test_scope.py b/tests/test_scope.py
index 48bdf2e..df2808f 100644
--- a/tests/test_scope.py
+++ b/tests/test_scope.py
@@ -427,7 +427,7 @@ def test_fetch(self, price, expected_price):
 
 class TestPendingOrderScope:
     def test_remove(self, pending_orders, pending_order_scope):
-        pending_order_scope.remove(pending_orders[0].id)
+        assert pending_order_scope.remove(pending_orders[0].id)
         orders = tuple(pending_order_scope.orders())
         assert len(orders) == 1
         assert orders[0] == pending_orders[1]
diff --git a/tests/test_strategy.py b/tests/test_strategy.py
index e193955..cd9f647 100644
--- a/tests/test_strategy.py
+++ b/tests/test_strategy.py
@@ -1867,7 +1867,7 @@ def exec_fn(ctx):
                 ctx.buy_shares = 100
                 ctx.stop_loss = 10
             elif ctx.bars == 10:
-                ctx.cancel_stop(stop_id=1)
+                assert ctx.cancel_stop(stop_id=1)
 
         df = data_source_df[data_source_df["symbol"] == "SPY"]
         dates = df["date"].unique()