def it_raises_on_element_order_descriptors_access(self):
"""Error message identifies the non-implementing subclass."""
with pytest.raises(NotImplementedError) as e:
_BaseAnchoredCollator(None, None)._element_order_descriptors
assert str(e.value) == (
"`_BaseAnchoredCollator` must implement `._element_order_descriptors`"
)
def it_maps_the_element_ids_to_their_position_to_help(
self, request, element_order_descriptors, expected_value):
property_mock(
request,
_BaseAnchoredCollator,
"_element_order_descriptors",
return_value=element_order_descriptors,
)
collator = _BaseAnchoredCollator(None, None)
assert collator._element_positions_by_id == expected_value
def it_computes_the_base_element_orderings_to_help(
self, request, element_order_descriptors, expected_value):
property_mock(
request,
_BaseAnchoredCollator,
"_element_order_descriptors",
return_value=element_order_descriptors,
)
collator = _BaseAnchoredCollator(None, None)
assert collator._base_element_orderings == expected_value
def it_can_compute_the_insertion_position_for_a_subtotal_to_help(
self, request, anchor, expected_value):
property_mock(
request,
_BaseAnchoredCollator,
"_element_positions_by_id",
return_value={
1: 0,
2: 1,
3: 2
},
)
subtotal_ = instance_mock(request, _Subtotal, anchor=anchor)
collator = _BaseAnchoredCollator(None, None)
assert collator._insertion_position(subtotal_) == expected_value
def it_computes_the_insertion_orderings_to_help(self, request,
insertion_positions,
expected_value):
subtotals_ = tuple(
instance_mock(request, _Subtotal) for _ in insertion_positions)
property_mock(request,
_BaseAnchoredCollator,
"_subtotals",
return_value=subtotals_)
_insertion_position_ = method_mock(
request,
_BaseAnchoredCollator,
"_insertion_position",
side_effect=iter(insertion_positions),
)
collator = _BaseAnchoredCollator(None, None)
insertion_orderings = collator._insertion_orderings
assert _insertion_position_.call_args_list == [
call(collator, s) for s in subtotals_
]
assert insertion_orderings == expected_value
def it_computes_the_display_order_to_help(self, request, base_orderings,
insertion_orderings, hidden_idxs,
expected_value):
property_mock(
request,
_BaseAnchoredCollator,
"_hidden_idxs",
return_value=hidden_idxs,
)
property_mock(
request,
_BaseAnchoredCollator,
"_insertion_orderings",
return_value=insertion_orderings,
)
property_mock(
request,
_BaseAnchoredCollator,
"_base_element_orderings",
return_value=base_orderings,
)
assert _BaseAnchoredCollator(None,
None)._display_order == expected_value