def test_supported_format():
lexer = QasmLexer()
lexer.input("OPENQASM 2.0;")
token = lexer.token()
assert token is not None
assert token.type == "FORMAT_SPEC"
assert token.value == '2.0'
def test_qelib_inc():
lexer = QasmLexer()
lexer.input('include "qelib1.inc";')
token = lexer.token()
assert token is not None
assert token.type == "QELIBINC"
assert token.value == 'include "qelib1.inc";'
def test_natural_numbers(number: str):
lexer = QasmLexer()
lexer.input(number)
token = lexer.token()
assert token is not None
assert token.type == "NATURAL_NUMBER"
assert token.value == int(number)
def test_valid_ids(identifier: str):
lexer = QasmLexer()
lexer.input(identifier)
token = lexer.token()
assert token is not None
assert token.type == "ID"
assert token.value == identifier
def test_numbers(number: str):
lexer = QasmLexer()
lexer.input(number)
token = lexer.token()
assert token is not None
assert token.type == "NUMBER"
assert token.value == float(number)
def test_measurement():
lexer = QasmLexer()
lexer.input("measure q -> c;")
token = lexer.token()
assert token.type == "MEASURE"
assert token.value == 'measure'
token = lexer.token()
assert token.type == "ID"
assert token.value == 'q'
token = lexer.token()
assert token.type == "ARROW"
assert token.value == '->'
token = lexer.token()
assert token.type == "ID"
assert token.value == 'c'
token = lexer.token()
assert token.type == ";"
assert token.value == ';'
def test_creg():
lexer = QasmLexer()
lexer.input('creg [8];')
token = lexer.token()
assert token.type == "CREG"
assert token.value == "creg"
token = lexer.token()
assert token.type == "["
assert token.value == "["
token = lexer.token()
assert token.type == "NATURAL_NUMBER"
assert token.value == 8
token = lexer.token()
assert token.type == "]"
assert token.value == "]"
token = lexer.token()
assert token.type == ";"
assert token.value == ";"
def test_qreg():
lexer = QasmLexer()
lexer.input('qreg [5];')
token = lexer.token()
assert token.type == "QREG"
assert token.value == "qreg"
token = lexer.token()
assert token.type == "["
assert token.value == "["
token = lexer.token()
assert token.type == "NATURAL_NUMBER"
assert token.value == 5
token = lexer.token()
assert token.type == "]"
assert token.value == "]"
token = lexer.token()
assert token.type == ";"
assert token.value == ";"
def test_empty_circuit():
lexer = QasmLexer()
lexer.input("")
assert lexer.token() is None
def test_error():
lexer = QasmLexer()
lexer.input('θ')
with pytest.raises(QasmException, match="Illegal character 'θ' at line 1"):
lexer.token()
def test_pi():
lexer = QasmLexer()
lexer.input('pi')
token = lexer.token()
assert token.type == "PI"
assert token.value == np.pi