def test_component_not_found():
reg = Registry()
assert reg.lookup([], ITarget, '') is None
alpha = Alpha()
assert reg.lookup([alpha], ITarget, '') is None
assert ITarget.component(alpha, lookup=reg, default=None) is None
with pytest.raises(ComponentLookupError):
ITarget.component(alpha, lookup=reg)
def test_component_not_found():
reg = Registry()
assert reg.lookup([], ITarget, '') is None
alpha = Alpha()
assert reg.lookup([alpha], ITarget, '') is None
assert ITarget.component(alpha, lookup=reg, default=None) is None
with py.test.raises(ComponentLookupError):
ITarget.component(alpha, lookup=reg)
def test_component_class_based_registration():
reg = Registry()
foo = object()
reg.register((Alpha,), ITarget, '', foo)
alpha = Alpha()
assert reg.lookup([alpha], ITarget, '') is foo
assert ITarget.component(alpha, lookup=reg) is foo
def test_component_one_source():
reg = Registry()
foo = object()
reg.register((IAlpha,), ITarget, '', foo)
alpha = Alpha()
assert reg.lookup([alpha], ITarget, '') is foo
assert ITarget.component(alpha, lookup=reg) is foo
def test_component_class_based_registration():
reg = Registry()
foo = object()
reg.register((Alpha, ), ITarget, '', foo)
alpha = Alpha()
assert reg.lookup([alpha], ITarget, '') is foo
assert ITarget.component(alpha, lookup=reg) is foo
def test_component_one_source():
reg = Registry()
foo = object()
reg.register((IAlpha, ), ITarget, '', foo)
alpha = Alpha()
assert reg.lookup([alpha], ITarget, '') is foo
assert ITarget.component(alpha, lookup=reg) is foo
def test_component_two_sources():
reg = Registry()
foo = object()
reg.register((IAlpha, IBeta), ITarget, '', foo)
alpha = Alpha()
beta = Beta()
assert reg.lookup([alpha, beta], ITarget, '') is foo
assert ITarget.component(alpha, beta, lookup=reg) is foo
def test_component_two_sources():
reg = Registry()
foo = object()
reg.register((IAlpha, IBeta), ITarget, '', foo)
alpha = Alpha()
beta = Beta()
assert reg.lookup([alpha, beta], ITarget, '') is foo
assert ITarget.component(alpha, beta, lookup=reg) is foo
def test_component_to_itself():
reg = Registry()
alpha = Alpha()
foo = object()
reg.register([IAlpha], IAlpha, '', foo)
assert reg.lookup([alpha], IAlpha, '') is foo
assert IAlpha.component(alpha, lookup=reg) is foo
def test_component_to_itself():
reg = Registry()
alpha = Alpha()
foo = object()
reg.register([IAlpha], IAlpha, '', foo)
assert reg.lookup([alpha], IAlpha, '') is foo
assert IAlpha.component(alpha, lookup=reg) is foo
def test_component_inheritance():
reg = Registry()
foo = object()
class Gamma(object):
pass
class Delta(Gamma):
pass
reg.register([Gamma], ITarget, '', foo)
delta = Delta()
assert reg.lookup([delta], ITarget, '') is foo
assert ITarget.component(delta, lookup=reg) is foo
def test_component_inheritance():
reg = Registry()
foo = object()
class Gamma(object):
pass
class Delta(Gamma):
pass
reg.register([Gamma], ITarget, '', foo)
delta = Delta()
assert reg.lookup([delta], ITarget, '') is foo
assert ITarget.component(delta, lookup=reg) is foo
def test_component_no_source():
reg = Registry()
foo = object()
reg.register((), ITarget, '', foo)
assert reg.lookup([], ITarget, '') is foo
assert ITarget.component(lookup=reg) is foo
def test_component_no_source():
reg = Registry()
foo = object()
reg.register((), ITarget, '', foo)
assert reg.lookup([], ITarget, '') is foo
assert ITarget.component(lookup=reg) is foo
