def test_recursive_link(beeper, beeper_class, clock):
if beeper_class == MultichannelBeeper:
# TODO: This gets rather nasty with component property; fix!
raise pytest.xfail(
'INTERNALERROR> RuntimeError: maximum recursion depth exceeded')
with beeper.extra_behavior('link function'):
beeper.volume = link(beeper.volume)
with pytest.raises(RuntimeError):
beeper.volume.get()
assert str(beeper.volume) in ('<RuntimeError while getting value>',
'<RecursionError while getting value>')
def test_set_to_expression_with_linked_property(beeper, clock):
with beeper.extra_behavior('link function'):
beeper.volume = link(beeper.pitch)
beeper.pitch += Progress(clock, 2) * 20
assert beeper.volume == 440
assert beeper.pitch == 440
clock.advance_sync(1)
assert beeper.volume == 450
assert beeper.pitch == 450
clock.advance_sync(1)
assert beeper.volume == 460
assert beeper.pitch == 460
def test_link_dump_function(beeper, beeper_class, clock, check_dump):
# The dump is different for normal properties and for components
with beeper.extra_behavior('link function'):
beeper.volume = link(beeper.pitch) + 4
if beeper_class == MultichannelBeeper:
check_dump(beeper.volume, """
<test beeper>.volume (volumes[0]) value <444.0>:
<test beeper>.volumes value <444.0, 0.0, 0.0>:
Concat <444.0, 0.0, 0.0>:
+ <444.0>:
linked <test beeper>.pitch (pitches[0]) <440.0>:
<test beeper>.pitches value <440.0, 440.0, 440.0>:
Constant <440.0, 440.0, 440.0>
Constant <4.0>
Constant <0.0, 0.0>
""")
else:
check_dump(beeper.volume, """
<test beeper>.volume value <444.0>:
+ <444.0>:
linked <test beeper>.pitch <440.0>:
Constant <440.0>
Constant <4.0>
""")
def test_link_function_idempotent(beeper, clock):
with beeper.extra_behavior('link function'):
linked = link(beeper.volume)
assert linked is link(linked)