def test_module_config_on_configure_observer_run():
cb0 = MyCallback(0, 0)
cb1 = MyCallback(1, 1)
assert cb0.ab == (0, 0)
assert cb1.ab == (1, 1)
module_config = ModuleConfig("""\
a = Int(default=2)
b = Int(default=5)
""",
on_configure=[cb0, cb1])
assert cb0.ab == (0, 0)
assert cb1.ab == (1, 1)
module_config.configure()
assert cb0.ab == (2, 5)
assert cb1.ab == (2, 5)
cfg = Config.from_string("""\
a = 100
b = 3""")
module_config.configure(cfg)
assert cb0.ab == (100, 3)
assert cb1.ab == (100, 3)
cfg["a"] = 200
module_config.configure(cfg)
assert cb0.ab == (200, 3)
assert cb1.ab == (200, 3)
module_config.remove_on_configure_observer(cb1)
cfg["a"] = 300
module_config.configure(cfg)
assert cb0.ab == (300, 3)
assert cb1.ab == (200, 3)
def test_module_config_on_configure_observer_error():
reached_a = False
reached_b = False
def mycallback(oc, nc):
nonlocal reached_a
nonlocal reached_b
reached_a = True
raise KeyError("mycallback")
reached_b = True
module_config = ModuleConfig("""\
a = Int(default=2)
b = Int(default=5)
""",
on_configure=[mycallback])
module_config.configure()
assert reached_a
assert not reached_b
