diff --git a/test/unit_tests/test_ahs_device.py b/test/unit_tests/test_ahs_device.py
index 67fda630..47840f01 100644
--- a/test/unit_tests/test_ahs_device.py
+++ b/test/unit_tests/test_ahs_device.py
@@ -467,25 +467,6 @@ def test_check_validity_valid_circuit(self, H, params):
 
         dev.check_validity(ops, obs)
 
-    @pytest.mark.parametrize("H, params", HAMILTONIANS_AND_PARAMS)
-    def test_check_validity_valid_circuit_no_op_math(self, H, params):
-        """Tests that check_validity() doesn't raise any errors when the operations and
-        observables are valid."""
-        qml.operation.disable_new_opmath()
-        ops = [ParametrizedEvolution(H, params, [0, 1.5])]
-        obs = [
-            qml.PauliZ(0),
-            qml.expval(qml.PauliZ(0)),
-            qml.var(qml.Identity(0)),
-            qml.sample(qml.PauliZ(0)),
-            qml.prod(qml.PauliZ(0), qml.Identity(1)),
-            qml.Hamiltonian([2, 3], [qml.PauliZ(0), qml.PauliZ(1)]),
-            qml.counts(),
-        ]
-        dev = qml.device("braket.local.ahs", wires=3)
-
-        dev.check_validity(ops, obs)
-
     @pytest.mark.parametrize("H, params", HAMILTONIANS_AND_PARAMS)
     def test_check_validity_raises_error_for_state_based_measurement(self, H, params):
         """Tests that requesting a measurement other than a sample-based
diff --git a/test/unit_tests/test_braket_device.py b/test/unit_tests/test_braket_device.py
index 94062dab..533e1626 100644
--- a/test/unit_tests/test_braket_device.py
+++ b/test/unit_tests/test_braket_device.py
@@ -569,7 +569,6 @@ def test_execute_with_gradient_no_op_math(
     result_types,
     expected_pl_result,
 ):
-    qml.operation.disable_new_opmath()
 
     task = Mock()
     type(task).id = PropertyMock(return_value="task_arn")
@@ -830,8 +829,8 @@ def test_pl_to_braket_circuit_hamiltonian():
 
 
 def test_pl_to_braket_circuit_hamiltonian_tensor_product_terms():
-    """Tests that a PennyLane circuit is correctly converted into a Braket circuit"""
-    """when the Hamiltonian has multiple tensor product ops"""
+    """Tests that a PennyLane circuit is correctly converted into a Braket circuit
+    when the Hamiltonian has multiple tensor product ops"""
     dev = _aws_device(wires=2, foo="bar")
 
     with QuantumTape() as tape:
@@ -1314,6 +1313,8 @@ def test_execute_some_samples(mock_run):
     mock_run.return_value = task
     dev = _aws_device(wires=3)
 
+    print(type(qml.Hadamard(0) @ qml.Identity(1)))
+
     with QuantumTape() as circuit:
         qml.Hadamard(wires=0)
         qml.CNOT(wires=[0, 1])
diff --git a/test/unit_tests/test_translation.py b/test/unit_tests/test_translation.py
index 5c719e68..b28470f8 100644
--- a/test/unit_tests/test_translation.py
+++ b/test/unit_tests/test_translation.py
@@ -749,7 +749,7 @@ def test_translate_result_type_hamiltonian_unsupported_return(return_type):
     with Hamiltonian observable and non-Expectation return type"""
     obs = qml.Hamiltonian((2, 3), (qml.PauliX(wires=0), qml.PauliY(wires=1)))
     tape = qml.tape.QuantumTape(measurements=[_braket_to_pl_result_types[return_type](obs)])
-    with pytest.raises(NotImplementedError, match="unsupported for Hamiltonian"):
+    with pytest.raises(NotImplementedError, match="unsupported for LinearCombination"):
         translate_result_type(tape.measurements[0], [0], frozenset())