def test_delete_hierachy_last():
"""Deleting such that all obj, default and fallback are None should fail."""
slot = Slot(dtype=str)
plug = Plug(slot, default='default', obj='obj')
del plug.obj
with pytest.raises(TypeError):
del plug.default
def test_default_set_inconsistent():
"""Setting default inconsistently should fail."""
slot = Slot(dtype=str, default='fallback')
plug = Plug(slot)
with pytest.raises(TypeError):
plug.default = 15
def test_default_set():
"""Setting default consistently should succeed."""
slot = Slot(dtype=str, default='fallback')
plug = Plug(slot)
plug.default = 'default'
def test_obj_del():
"""Deleting obj with slot default should succeed."""
slot = Slot(dtype=str, default='fallback')
plug = Plug(slot)
plug.obj = 'obj'
del plug.obj
def test_obj_set():
"""Setting obj consistently should succeed."""
slot = Slot(dtype=str, default='fallback')
plug = Plug(slot)
plug.obj = 'obj'
def test_init_no_slot_default():
"""Instatiating a Plug without a slot's default value should fail."""
slot = Slot(dtype=int)
with pytest.raises(TypeError):
Plug(slot)
def test_slot_set_inconsistent():
"""Assigning a new slot without the correct dtype should fail."""
slot = Slot(dtype=object)
plug = Plug(slot, obj='default')
with pytest.raises(TypeError):
plug.slot = slot(dtype=int)
def test_optional():
"""If default is set, object should be optional."""
slot = Slot(dtype=str)
plug = Plug(slot, default='default', obj='obj')
assert plug.optional
def test_fallback_hierachy_fallback():
"""Accessing fallback with only slot default set should return slot default."""
slot = Slot(dtype=str, default='fallback')
plug = Plug(slot)
assert plug.fallback == 'fallback'
def test_fallback_hierachy_default():
"""Accessing fallback with slot default and plug default set should return slot default."""
slot = Slot(dtype=str, default='fallback')
plug = Plug(slot, default='default')
assert plug.fallback == 'fallback'
def test_default_hierachy_obj():
"""Accessing default with slot default, default and obj set should return default."""
slot = Slot(dtype=str, default='fallback')
plug = Plug(slot, default='default')
assert plug.default == 'default'
def test_obj_hierachy_obj():
"""Accessing obj with slot default, plug default and obj set should return obj."""
slot = Slot(dtype=str, default='fallback')
plug = Plug(slot, obj='obj', default='default')
assert plug.obj == 'obj'
def test_init_inconsistent_default():
"""Instatiating a Plug with obj not set as slot's dtype should fail."""
slot = Slot(dtype=str)
with pytest.raises(TypeError):
Plug(slot, default=15)
def test_init_consistent_default():
"""Instatiating a Plug with default set as the correct slot's dtype should succeed."""
slot = Slot(dtype=int)
Plug(slot, default=15)
def test_init_consistent_obj():
"""Instatiating a Plug with obj set as the correct slot's dtype should succeed."""
slot = Slot(dtype=int)
Plug(slot, obj=15)
def test_default_del():
"""Deleting default with slot default should succeed."""
slot = Slot(dtype=str, default='fallback')
plug = Plug(slot)
plug.default = 'default'
del plug.default
def test_not_optional():
"""If neither default, nor slot default are set, object should not be optional."""
slot = Slot(dtype=str)
plug = Plug(slot, obj='obj')
assert not plug.optional
def test_hierachy_none():
"""Accessing any of default and fallback with only obj set should return None."""
slot = Slot(dtype=str)
plug = Plug(slot, obj='obj')
assert plug.default is None
assert plug.fallback is None
def test_slot_set_consistent():
"""Assigning a new slot with the correct dtype should succeed."""
slot = Slot(dtype=object)
plug = Plug(slot, obj='default')
plug.slot = Slot(dtype=str)
def test_delete_hierachy():
"""Deleting obj with default set should return default."""
slot = Slot(dtype=str)
plug = Plug(slot, default='default', obj='obj')
del plug.obj
assert plug.obj == 'default'
def test_slot_set_no_default():
"""Assigning a new slot without any other but the slot default value set should fail."""
slot = Slot(dtype=object, default='fallback')
plug = Plug(slot)
with pytest.raises(TypeError):
plug.slot = slot(dtype=str)
def test_init_with_slot_default():
"""Instatiating a Plug with a slot's default value should succeed."""
slot = Slot(dtype=int, default=10)
Plug(slot)