Fix failing tests; suppress deprecation warning

PennyLaneAI · Sep 20, 2024 · ae1e7b9 · ae1e7b9
1 parent 59d0383
commit ae1e7b9
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Showing 4 changed files with 11 additions and 4 deletions.
diff --git a/tests/circuit_graph/test_circuit_graph_hash.py b/tests/circuit_graph/test_circuit_graph_hash.py
@@ -54,7 +54,7 @@ def test_serialize_numeric_arguments(self, queue, observable_queue, expected_str
 
     observable1 = qml.PauliZ(wires=[0])
     observable2 = qml.Hermitian(np.array([[1, 0], [0, -1]]), wires=[0])
-    observable3 = Tensor(qml.PauliZ(0) @ qml.PauliZ(1))
+    observable3 = Tensor(qml.PauliZ(0), qml.PauliZ(1))
 
     numeric_observable_queue = [
         (returntype1, observable1, "|||ObservableReturnTypes.Expectation!PauliZ[0]"),

diff --git a/tests/pauli/test_conversion.py b/tests/pauli/test_conversion.py
@@ -46,7 +46,7 @@
 test_diff_matrix2 = [[[-2, -2 + 1j], [-2 - 1j, 0]], [[2.5, -0.5], [-0.5, 2.5]]]
 
 with warnings.catch_warnings():
-    warnings.simplefilter("ignore")
+    warnings.filterwarnings("ignore", "qml.ops.Hamiltonian uses", qml.PennyLaneDeprecationWarning)
     hamiltonian_ps = (
         (
             qml.ops.Hamiltonian([], []),
@@ -553,6 +553,9 @@ def test_tensor_raises_error(self):
         with pytest.raises(ValueError, match="Op must be a linear combination of"):
             pauli_sentence(op)
 
+    @pytest.mark.filterwarnings(
+        "ignore:qml.ops.Hamiltonian uses:pennylane.PennyLaneDeprecationWarning"
+    )
     @pytest.mark.usefixtures("use_legacy_and_new_opmath")
     @pytest.mark.parametrize("op, ps", hamiltonian_ps)
     def test_hamiltonian(self, op, ps):

diff --git a/tests/pauli/test_pauli_utils.py b/tests/pauli/test_pauli_utils.py
@@ -458,7 +458,11 @@ def test_pauli_word_to_string_tensor(self):
         assert pauli_word_to_string(op) == "ZYX"
 
     with qml.operation.disable_new_opmath_cm(warn=False):
-        PAULI_WORD_STRINGS_LEGACY = _make_pauli_word_strings()
+        with warnings.catch_warnings():
+            warnings.filterwarnings(
+                "ignore", "qml.ops.Hamiltonian uses", qml.PennyLaneDeprecationWarning
+            )
+            PAULI_WORD_STRINGS_LEGACY = _make_pauli_word_strings()
 
     @pytest.mark.usefixtures("legacy_opmath_only")
     @pytest.mark.parametrize("pauli_word,wire_map,expected_string", PAULI_WORD_STRINGS_LEGACY)

diff --git a/tests/pytest.ini b/tests/pytest.ini
@@ -26,6 +26,6 @@ filterwarnings =
     ignore:Call to deprecated create function:DeprecationWarning
     ignore:the imp module is deprecated:DeprecationWarning
     error::pennylane.PennyLaneDeprecationWarning
-    ; ignore:qml.ops.Hamiltonian uses the old approach:pennylane.PennyLaneDeprecationWarning
+    ignore:qml.ops.Hamiltonian uses the old approach:pennylane.PennyLaneDeprecationWarning
 addopts = --benchmark-disable
 xfail_strict=true