def test_qasm_from_file(self, tmpdir, recorder):
"""Tests that a QuantumCircuit object is deserialized from a qasm file."""
qft_qasm = tmpdir.join("qft.qasm")
with open(qft_qasm, "w") as f:
f.write(TestConverterQasm.qft_qasm)
quantum_circuit = load_qasm_from_file(qft_qasm)
with pytest.warns(UserWarning) as record:
with recorder:
quantum_circuit()
assert len(recorder.queue) == 6
assert recorder.queue[0].name == 'PauliX'
assert recorder.queue[0].params == []
assert recorder.queue[0].wires == [0]
assert recorder.queue[1].name == 'PauliX'
assert recorder.queue[1].params == []
assert recorder.queue[1].wires == [2]
assert recorder.queue[2].name == 'Hadamard'
assert recorder.queue[2].params == []
assert recorder.queue[2].wires == [0]
assert recorder.queue[3].name == 'Hadamard'
assert recorder.queue[3].params == []
assert recorder.queue[3].wires == [1]
assert recorder.queue[4].name == 'Hadamard'
assert recorder.queue[4].params == []
assert recorder.queue[4].wires == [2]
assert recorder.queue[5].name == 'Hadamard'
assert recorder.queue[5].params == []
assert recorder.queue[5].wires == [3]
assert len(record) == 11
# check that the message matches
assert record[0].message.args[0] == "pennylane_qiskit.converter: The {} instruction is not supported by" \
" PennyLane, and has not been added to the template."\
.format('Barrier')
assert record[1].message.args[0] == "pennylane_qiskit.converter: The {} instruction is not supported by" \
" PennyLane, and has not been added to the template."\
.format('CU1Gate')
assert record[7].message.args[0] == "pennylane_qiskit.converter: The {} instruction is not supported by" \
" PennyLane, and has not been added to the template."\
.format('Measure')
def test_qasm_from_file(self, tmpdir, recorder):
"""Tests that a QuantumCircuit object is deserialized from a qasm file."""
qft_qasm = tmpdir.join("qft.qasm")
with open(qft_qasm, "w") as f:
f.write(TestConverterQasm.qft_qasm)
quantum_circuit = load_qasm_from_file(qft_qasm)
with pytest.warns(UserWarning) as record:
with recorder:
quantum_circuit()
assert len(recorder.queue) == 6
assert recorder.queue[0].name == "PauliX"
assert recorder.queue[0].parameters == []
assert recorder.queue[0].wires == Wires([0])
assert recorder.queue[1].name == "PauliX"
assert recorder.queue[1].parameters == []
assert recorder.queue[1].wires == Wires([2])
assert recorder.queue[2].name == "Hadamard"
assert recorder.queue[2].parameters == []
assert recorder.queue[2].wires == Wires([0])
assert recorder.queue[3].name == "Hadamard"
assert recorder.queue[3].parameters == []
assert recorder.queue[3].wires == Wires([1])
assert recorder.queue[4].name == "Hadamard"
assert recorder.queue[4].parameters == []
assert recorder.queue[4].wires == Wires([2])
assert recorder.queue[5].name == "Hadamard"
assert recorder.queue[5].parameters == []
assert recorder.queue[5].wires == Wires([3])
def test_qasm_file_not_found_error(self):
"""Tests that an error is propagated, when a non-existing file is specified for parsing."""
qft_qasm = "some_qasm_file.qasm"
with pytest.raises(FileNotFoundError):
load_qasm_from_file(qft_qasm)
