def test_instrument_fail(close_before_and_after):
with pytest.raises(RuntimeError, match="Failed to create instrument"):
DummyFailingInstrument(name="failinginstrument")
assert Instrument.instances() == []
assert DummyFailingInstrument.instances() == []
assert Instrument._all_instruments == {}
def test_check_instances(self):
with self.assertRaises(KeyError):
DummyInstrument(name='testdummy', gates=['dac1', 'dac2', 'dac3'])
self.assertEqual(Instrument.instances(), [])
self.assertEqual(DummyInstrument.instances(), [self.instrument])
self.assertEqual(self.instrument.instances(), [self.instrument])
def test_check_instances(testdummy):
with pytest.raises(KeyError, match='Another instrument has the name: testdummy'):
DummyInstrument(name='testdummy', gates=['dac1', 'dac2', 'dac3'])
assert Instrument.instances() == []
assert DummyInstrument.instances() == [testdummy]
assert testdummy.instances() == [testdummy]
def test_check_instances(self):
with self.assertRaises(KeyError) as cm:
DummyInstrument(name='testdummy', gates=['dac1', 'dac2', 'dac3'])
assert str(cm.exception) == "'Another instrument has the name: testdummy'"
self.assertEqual(Instrument.instances(), [])
self.assertEqual(DummyInstrument.instances(), [self.instrument])
self.assertEqual(self.instrument.instances(), [self.instrument])
def test_instrument_allows_channel_name_starting_with_number(close_before_and_after):
instr = DummyChannelInstrument(name="foo", channel_names=["1", "2", "3"])
for chan in instr.channels:
assert chan.short_name.isidentifier() is False
assert chan.full_name.isidentifier() is True
assert Instrument.instances() == []
assert DummyChannelInstrument.instances() == [instr]
assert Instrument._all_instruments != {}
def test_instrument_retry_with_same_name(close_before_and_after):
with pytest.raises(RuntimeError, match="Failed to create instrument"):
DummyFailingInstrument(name="failinginstrument")
instr = DummyFailingInstrument(name="failinginstrument", fail=False)
# Check that the instrument is successfully registered after failing first
assert Instrument.instances() == []
assert DummyFailingInstrument.instances() == [instr]
expected_dict = weakref.WeakValueDictionary()
expected_dict["failinginstrument"] = instr
assert Instrument._all_instruments == expected_dict
def test_instrument_on_invalid_identifier(close_before_and_after):
# Check if warning and error raised when invalid identifer name given
with pytest.warns(
UserWarning, match="Changed !-name to !_name for instrument identifier"
):
with pytest.raises(ValueError, match="!_name invalid instrument identifier"):
DummyInstrument(name="!-name")
assert Instrument.instances() == []
assert DummyInstrument.instances() == []
assert Instrument._all_instruments == {}
def test_instrument_warns_on_hyphen_in_name(close_before_and_after):
# Check if warning is raised and name is valid
# identifier when dashes '-' are converted to underscores '_'
with pytest.warns(
UserWarning, match="Changed -name to _name for instrument identifier"
):
instr = DummyInstrument(name="-name")
assert instr.name == "_name"
assert Instrument.instances() == []
assert DummyInstrument.instances() == [instr]
assert Instrument._all_instruments != {}
def test_instrument_channel_name_raise_on_invalid(close_before_and_after):
with pytest.raises(ValueError, match="foo_☃ invalid instrument identifier"):
DummyChannelInstrument(name="foo", channel_names=["☃"])
assert Instrument.instances() == []
assert DummyChannelInstrument.instances() == []
assert Instrument._all_instruments == {}
