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882 lines (768 loc) · 31 KB
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"""Test the ClassList."""
import re
import warnings
from collections.abc import Iterable, Sequence
from typing import Any, Union
import pytest
from RATpy.classlist import ClassList
from tests.utils import InputAttributes, SubInputAttributes
@pytest.fixture
def one_name_class_list():
"""A ClassList of InputAttributes, containing one element with a name defined."""
return ClassList([InputAttributes(name="Alice")])
@pytest.fixture
def two_name_class_list():
"""A ClassList of InputAttributes, containing two elements with names defined."""
return ClassList([InputAttributes(name="Alice"), InputAttributes(name="Bob")])
@pytest.fixture
def two_name_class_list_table():
"""The table representation of the ClassList defined in the "two_name_class_list" fixture."""
return (
"+-------+-------+\n"
"| index | name |\n"
"+-------+-------+\n"
"| 0 | Alice |\n"
"| 1 | Bob |\n"
"+-------+-------+"
)
@pytest.fixture
def three_name_class_list():
"""A ClassList of InputAttributes, containing three elements with names defined."""
return ClassList([InputAttributes(name="Alice"), InputAttributes(name="Bob"), InputAttributes(name="Eve")])
class TestInitialisation:
@pytest.mark.parametrize(
"input_object",
[
(InputAttributes()),
(InputAttributes(name="Alice")),
(InputAttributes(surname="Morgan")),
"Alice",
],
)
def test_input_object(self, input_object: Any) -> None:
"""For an input of an object, the ClassList should contain a one-element list containing the object and
_class_handle should be set to the type of the object.
"""
class_list = ClassList(input_object)
assert class_list.data == [input_object]
assert isinstance(input_object, class_list._class_handle)
@pytest.mark.parametrize(
"input_sequence",
[
([InputAttributes()]),
([InputAttributes(name="Alice")]),
([InputAttributes(surname="Morgan")]),
([InputAttributes(name="Alice"), InputAttributes(name="Bob")]),
(InputAttributes(),),
(InputAttributes(name="Alice"),),
(InputAttributes(surname="Morgan"),),
(InputAttributes(name="Alice"), InputAttributes(name="Bob")),
],
)
def test_input_sequence(self, input_sequence: Sequence[object]) -> None:
"""For an input of a sequence, the ClassList should be a list equal to the input sequence, and _class_handle
should be set to the type of the objects within.
"""
class_list = ClassList(input_sequence)
assert class_list.data == list(input_sequence)
for element in input_sequence:
assert isinstance(element, class_list._class_handle)
@pytest.mark.parametrize(
"input_sequence",
[
([InputAttributes(name="Alice"), SubInputAttributes(name="Bob")]),
([SubInputAttributes(name="Alice"), InputAttributes(name="Bob")]),
],
)
def test_input_sequence_subclass(self, input_sequence: Sequence[object]) -> None:
"""For an input of a sequence containing objects of a class and its subclasses, the ClassList should be a list
equal to the input sequence, and _class_handle should be set to the type of the parent class.
"""
class_list = ClassList(input_sequence)
assert class_list.data == list(input_sequence)
for element in input_sequence:
assert isinstance(element, class_list._class_handle)
@pytest.mark.parametrize("empty_input", [([]), (())])
def test_empty_input(self, empty_input: Sequence[object]) -> None:
"""If we initialise a ClassList with an empty input (list or tuple), the ClassList should be an empty list, and
_class_handle should be unset.
"""
class_list = ClassList(empty_input)
assert class_list.data == []
assert not hasattr(class_list, "_class_handle")
@pytest.mark.parametrize(
"input_list",
[
([InputAttributes(name="Alice"), dict(name="Bob")]),
],
)
def test_different_classes(self, input_list: Sequence[object]) -> None:
"""If we initialise a ClassList with an input containing multiple classes, we should raise a ValueError."""
with pytest.raises(
ValueError,
match=f"Input list contains elements of type other than '{type(input_list[0]).__name__}'",
):
ClassList(input_list)
@pytest.mark.parametrize(
"input_list, name_field",
[
([InputAttributes(name="Alice"), InputAttributes(name="Alice")], "name"),
([InputAttributes(id="Alice"), InputAttributes(id="Alice")], "id"),
],
)
def test_identical_name_fields(self, input_list: Sequence[object], name_field: str) -> None:
"""If we initialise a ClassList with input objects with identical values of the name_field,
we should raise a ValueError.
"""
with pytest.raises(
ValueError,
match=f"Input list contains objects with the same value of the {name_field} attribute",
):
ClassList(input_list, name_field=name_field)
def test_str_table(two_name_class_list: ClassList, two_name_class_list_table: str) -> None:
"""For classes with the __dict__ attribute, we should be able to print the ClassList like a table."""
assert str(two_name_class_list) == two_name_class_list_table
def test_str_empty_table() -> None:
"""For empty classes with the __dict__ attribute, we should be able to print the contents of the ClassList as a
list.
"""
empty_attributes = InputAttributes()
assert str(ClassList(empty_attributes)) == str([empty_attributes])
@pytest.mark.parametrize(
"input_list",
[
(["Alice", "Bob"]),
],
)
def test_str_list(input_list: list[str]) -> None:
"""For classes without the __dict__ attribute, we should be able to print the ClassList as a list."""
class_list = ClassList(input_list)
assert str(class_list) == str(input_list)
def test_str_empty_classlist() -> None:
"""For empty ClassLists, we should be able to print the ClassList as an empty list."""
assert str(ClassList()) == str([])
@pytest.mark.parametrize(
["new_item", "expected_classlist"],
[
(InputAttributes(name="Eve"), ClassList([InputAttributes(name="Eve"), InputAttributes(name="Bob")])),
(
InputAttributes(name="John", surname="Luther"),
ClassList([InputAttributes(name="John", surname="Luther"), InputAttributes(name="Bob")]),
),
],
)
def test_setitem(two_name_class_list: ClassList, new_item: InputAttributes, expected_classlist: ClassList) -> None:
"""We should be able to set values in an element of a ClassList using a new object."""
class_list = two_name_class_list
class_list[0] = new_item
assert class_list == expected_classlist
@pytest.mark.parametrize(
"new_item",
[
(InputAttributes(name="Bob")),
],
)
def test_setitem_same_name_field(two_name_class_list: ClassList, new_item: InputAttributes) -> None:
"""If we set the name_field of an object in the ClassList to one already defined, we should raise a ValueError."""
with pytest.raises(ValueError, match="Input list contains objects with the same value of the name attribute"):
two_name_class_list[0] = new_item
@pytest.mark.parametrize(
"new_values",
[
"Bob",
],
)
def test_setitem_different_classes(two_name_class_list: ClassList, new_values: dict[str, Any]) -> None:
"""If we set the name_field of an object in the ClassList to one already defined, we should raise a ValueError."""
with pytest.raises(ValueError, match="Input list contains elements of type other than 'InputAttributes'"):
two_name_class_list[0] = new_values
def test_delitem(two_name_class_list: ClassList, one_name_class_list: ClassList) -> None:
"""We should be able to delete elements from a ClassList with the del operator."""
class_list = two_name_class_list
del class_list[1]
assert class_list == one_name_class_list
def test_delitem_not_present(two_name_class_list: ClassList) -> None:
"""If we use the del operator to delete an index out of range, we should raise an IndexError."""
class_list = two_name_class_list
with pytest.raises(IndexError, match=re.escape("list assignment index out of range")):
del class_list[2]
@pytest.mark.parametrize(
"added_list",
[
(ClassList(InputAttributes(name="Eve"))),
([InputAttributes(name="Eve")]),
(InputAttributes(name="Eve"),),
(InputAttributes(name="Eve")),
],
)
def test_iadd(two_name_class_list: ClassList, added_list: Iterable, three_name_class_list: ClassList) -> None:
"""We should be able to use the "+=" operator to add iterables to a ClassList. Individual objects should be wrapped
in a list before being added.
"""
class_list = two_name_class_list
class_list += added_list
assert class_list == three_name_class_list
@pytest.mark.parametrize(
"added_list",
[
(ClassList([InputAttributes(name="Alice"), InputAttributes(name="Bob")])),
([InputAttributes(name="Alice"), InputAttributes(name="Bob")]),
(InputAttributes(name="Alice"), InputAttributes(name="Bob")),
],
)
def test_iadd_empty_classlist(added_list: Sequence, two_name_class_list: ClassList) -> None:
"""We should be able to use the "+=" operator to add iterables to an empty ClassList, whilst also setting
_class_handle.
"""
class_list = ClassList()
class_list += added_list
assert class_list == two_name_class_list
assert isinstance(added_list[-1], class_list._class_handle)
def test_mul(two_name_class_list: ClassList) -> None:
"""If we use the "*" operator on a ClassList, we should raise a TypeError."""
n = 2
with pytest.raises(
TypeError,
match=re.escape(
f"unsupported operand type(s) for *: "
f"'{two_name_class_list.__class__.__name__}' and "
f"'{n.__class__.__name__}'",
),
):
two_name_class_list * n
def test_rmul(two_name_class_list: ClassList) -> None:
"""If we use the "*" operator on a ClassList, we should raise a TypeError."""
n = 2
with pytest.raises(
TypeError,
match=re.escape(
f"unsupported operand type(s) for *: "
f"'{n.__class__.__name__}' and "
f"'{two_name_class_list.__class__.__name__}'",
),
):
n * two_name_class_list
def test_imul(two_name_class_list: ClassList) -> None:
"""If we use the "*=" operator on a ClassList, we should raise a TypeError."""
n = 2
with pytest.raises(
TypeError,
match=re.escape(
f"unsupported operand type(s) for *=: "
f"'{two_name_class_list.__class__.__name__}' and "
f"'{n.__class__.__name__}'",
),
):
two_name_class_list *= n
@pytest.mark.parametrize(
"new_object",
[
(InputAttributes(name="Eve")),
],
)
def test_append_object(two_name_class_list: ClassList, new_object: object, three_name_class_list: ClassList) -> None:
"""We should be able to append to a ClassList using a new object."""
class_list = two_name_class_list
class_list.append(new_object)
assert class_list == three_name_class_list
@pytest.mark.parametrize(
"new_values",
[
({"name": "Eve"}),
],
)
def test_append_kwargs(
two_name_class_list: ClassList,
new_values: dict[str, Any],
three_name_class_list: ClassList,
) -> None:
"""We should be able to append to a ClassList using keyword arguments."""
class_list = two_name_class_list
class_list.append(**new_values)
assert class_list == three_name_class_list
@pytest.mark.parametrize(
["new_object", "new_values"],
[
(InputAttributes(name="Eve"), {"name": "John"}),
],
)
def test_append_object_and_kwargs(
two_name_class_list: ClassList,
new_object: object,
new_values: dict[str, Any],
three_name_class_list: ClassList,
) -> None:
"""If we append to a ClassList using a new object and keyword arguments, we raise a warning, and append the object,
discarding the keyword arguments.
"""
class_list = two_name_class_list
with pytest.warns(SyntaxWarning):
warnings.warn(
"ClassList.append() called with both an object and keyword arguments. "
"The keyword arguments will be ignored.",
SyntaxWarning,
stacklevel=2,
)
class_list.append(new_object, **new_values)
assert class_list == three_name_class_list
@pytest.mark.parametrize(
"new_object",
[
(InputAttributes(name="Alice")),
],
)
def test_append_object_empty_classlist(new_object: object, one_name_class_list: ClassList) -> None:
"""We should be able to append to an empty ClassList using a new object, whilst also setting _class_handle."""
class_list = ClassList()
class_list.append(new_object)
assert class_list == one_name_class_list
assert isinstance(new_object, class_list._class_handle)
@pytest.mark.parametrize(
"new_values",
[
({"name": "Alice"}),
],
)
def test_append_kwargs_empty_classlist(new_values: dict[str, Any]) -> None:
"""If we append to an empty ClassList using keyword arguments we should raise a TypeError."""
class_list = ClassList()
with pytest.raises(
TypeError,
match=re.escape(
"ClassList.append() called with keyword arguments for a ClassList "
"without a class defined. Call ClassList.append() with an object to "
"define the class.",
),
):
class_list.append(**new_values)
@pytest.mark.parametrize(
"new_object",
[
(InputAttributes(name="Alice")),
],
)
def test_append_object_same_name_field(two_name_class_list: ClassList, new_object: object) -> None:
"""If we append an object with an already-specified name_field value to a ClassList we should raise a ValueError."""
with pytest.raises(
ValueError,
match=f"Input list contains objects with the same value of the " f"{two_name_class_list.name_field} attribute",
):
two_name_class_list.append(new_object)
@pytest.mark.parametrize(
"new_values",
[
({"name": "Alice"}),
],
)
def test_append_kwargs_same_name_field(two_name_class_list: ClassList, new_values: dict[str, Any]) -> None:
"""If we append an object with an already-specified name_field value to a ClassList we should raise a ValueError."""
with pytest.raises(
ValueError,
match=f"Input arguments contain the {two_name_class_list.name_field} "
f"'{new_values[two_name_class_list.name_field]}', "
f"which is already specified in the ClassList",
):
two_name_class_list.append(**new_values)
@pytest.mark.parametrize(
"new_object",
[
(InputAttributes(name="Eve")),
],
)
def test_insert_object(two_name_class_list: ClassList, new_object: object) -> None:
"""We should be able to insert an object within a ClassList using a new object."""
two_name_class_list.insert(1, new_object)
assert two_name_class_list == ClassList(
[InputAttributes(name="Alice"), InputAttributes(name="Eve"), InputAttributes(name="Bob")],
)
@pytest.mark.parametrize(
"new_values",
[
({"name": "Eve"}),
],
)
def test_insert_kwargs(two_name_class_list: ClassList, new_values: dict[str, Any]) -> None:
"""We should be able to insert an object within a ClassList using keyword arguments."""
two_name_class_list.insert(1, **new_values)
assert two_name_class_list == ClassList(
[InputAttributes(name="Alice"), InputAttributes(name="Eve"), InputAttributes(name="Bob")],
)
@pytest.mark.parametrize(
["new_object", "new_values"],
[
(InputAttributes(name="Eve"), {"name": "John"}),
],
)
def test_insert_object_and_kwargs(
two_name_class_list: ClassList,
new_object: object,
new_values: dict[str, Any],
three_name_class_list: ClassList,
) -> None:
"""If call insert() on a ClassList using a new object and keyword arguments, we raise a warning, and append the
object, discarding the keyword arguments.
"""
class_list = two_name_class_list
with pytest.warns(SyntaxWarning):
warnings.warn(
"ClassList.insert() called with both an object and keyword arguments. "
"The keyword arguments will be ignored.",
SyntaxWarning,
stacklevel=2,
)
class_list.insert(1, new_object, **new_values)
assert class_list == ClassList(
[InputAttributes(name="Alice"), InputAttributes(name="Eve"), InputAttributes(name="Bob")],
)
@pytest.mark.parametrize(
"new_object",
[
(InputAttributes(name="Alice")),
],
)
def test_insert_object_empty_classlist(new_object: object, one_name_class_list: ClassList) -> None:
"""We should be able to insert a new object into an empty ClassList, whilst also setting _class_handle."""
class_list = ClassList()
class_list.insert(0, new_object)
assert class_list == one_name_class_list
assert isinstance(new_object, class_list._class_handle)
@pytest.mark.parametrize(
"new_values",
[
({"name": "Alice"}),
],
)
def test_insert_kwargs_empty_classlist(new_values: dict[str, Any]) -> None:
"""If we append to an empty ClassList using keyword arguments we should raise a TypeError."""
class_list = ClassList()
with pytest.raises(
TypeError,
match=re.escape(
"ClassList.insert() called with keyword arguments for a ClassList "
"without a class defined. Call ClassList.insert() with an object to "
"define the class.",
),
):
class_list.insert(0, **new_values)
@pytest.mark.parametrize(
"new_object",
[
(InputAttributes(name="Alice")),
],
)
def test_insert_object_same_name(two_name_class_list: ClassList, new_object: object) -> None:
"""If we insert an object with an already-specified name_field value to a ClassList we should raise a ValueError."""
with pytest.raises(
ValueError,
match=f"Input list contains objects with the same value of the " f"{two_name_class_list.name_field} attribute",
):
two_name_class_list.insert(1, new_object)
@pytest.mark.parametrize(
"new_values",
[
({"name": "Alice"}),
],
)
def test_insert_kwargs_same_name(two_name_class_list: ClassList, new_values: dict[str, Any]) -> None:
"""If we insert an object with an already-specified name_field value to a ClassList we should raise a ValueError."""
with pytest.raises(
ValueError,
match=f"Input arguments contain the {two_name_class_list.name_field} "
f"'{new_values[two_name_class_list.name_field]}', "
f"which is already specified in the ClassList",
):
two_name_class_list.insert(1, **new_values)
@pytest.mark.parametrize(
"remove_value",
[
"Bob",
(InputAttributes(name="Bob")),
],
)
def test_remove(two_name_class_list: ClassList, remove_value: Union[object, str]) -> None:
"""We should be able to remove an object either by the value of the name_field or by specifying the object
itself.
"""
two_name_class_list.remove(remove_value)
assert two_name_class_list == ClassList([InputAttributes(name="Alice")])
@pytest.mark.parametrize(
"remove_value",
[
"Eve",
(InputAttributes(name="Eve")),
],
)
def test_remove_not_present(two_name_class_list: ClassList, remove_value: Union[object, str]) -> None:
"""If we remove an object not included in the ClassList we should raise a ValueError."""
with pytest.raises(ValueError, match=re.escape("list.remove(x): x not in list")):
two_name_class_list.remove(remove_value)
@pytest.mark.parametrize(
["count_value", "expected_count"],
[
("Bob", 1),
(InputAttributes(name="Bob"), 1),
("Eve", 0),
(InputAttributes(name="Eve"), 0),
],
)
def test_count(two_name_class_list: ClassList, count_value: Union[object, str], expected_count: int) -> None:
"""We should be able to determine the number of times an object is in the ClassList using either the object itself
or its name_field value.
"""
assert two_name_class_list.count(count_value) == expected_count
@pytest.mark.parametrize(
["index_value", "expected_index"],
[
("Bob", 1),
(InputAttributes(name="Bob"), 1),
],
)
def test_index(two_name_class_list: ClassList, index_value: Union[object, str], expected_index: int) -> None:
"""We should be able to find the index of an object in the ClassList either by its name_field value or by
specifying the object itself.
"""
assert two_name_class_list.index(index_value) == expected_index
@pytest.mark.parametrize(
["index_value", "offset", "expected_index"],
[
("Bob", 1, 2),
(InputAttributes(name="Bob"), -3, -2),
],
)
def test_index_offset(
two_name_class_list: ClassList,
index_value: Union[object, str],
offset: int,
expected_index: int,
) -> None:
"""We should be able to find the index of an object in the ClassList either by its name_field value or by
specifying the object itself. When using an offset, the value of the index should be shifted accordingly.
"""
assert two_name_class_list.index(index_value, offset) == expected_index
@pytest.mark.parametrize(
"index_value",
[
"Eve",
(InputAttributes(name="Eve")),
],
)
def test_index_not_present(two_name_class_list: ClassList, index_value: Union[object, str]) -> None:
"""If we try to find the index of an object not included in the ClassList we should raise a ValueError."""
# with pytest.raises(ValueError, match=f"'{index_value}' is not in list") as e:
with pytest.raises(ValueError):
two_name_class_list.index(index_value)
@pytest.mark.parametrize(
"extended_list",
[
(ClassList(InputAttributes(name="Eve"))),
([InputAttributes(name="Eve")]),
(InputAttributes(name="Eve"),),
(InputAttributes(name="Eve")),
],
)
def test_extend(two_name_class_list: ClassList, extended_list: Sequence, three_name_class_list: ClassList) -> None:
"""We should be able to extend a ClassList using another ClassList or a sequence. Individual objects should be
wrapped in a list before being added.
"""
class_list = two_name_class_list
class_list.extend(extended_list)
assert class_list == three_name_class_list
@pytest.mark.parametrize(
"extended_list",
[
(ClassList(InputAttributes(name="Alice"))),
([InputAttributes(name="Alice")]),
(InputAttributes(name="Alice"),),
],
)
def test_extend_empty_classlist(extended_list: Sequence, one_name_class_list: ClassList) -> None:
"""We should be able to extend a ClassList using another ClassList or a sequence"""
class_list = ClassList()
class_list.extend(extended_list)
assert class_list == one_name_class_list
assert isinstance(extended_list[-1], class_list._class_handle)
@pytest.mark.parametrize(
["new_values", "expected_classlist"],
[
({"name": "Eve"}, ClassList([InputAttributes(name="Eve"), InputAttributes(name="Bob")])),
(
{"name": "John", "surname": "Luther"},
ClassList([InputAttributes(name="John", surname="Luther"), InputAttributes(name="Bob")]),
),
],
)
def test_set_fields(two_name_class_list: ClassList, new_values: dict[str, Any], expected_classlist: ClassList) -> None:
"""We should be able to set field values in an element of a ClassList using keyword arguments."""
class_list = two_name_class_list
class_list.set_fields(0, **new_values)
assert class_list == expected_classlist
@pytest.mark.parametrize(
"new_values",
[
({"name": "Bob"}),
],
)
def test_set_fields_same_name_field(two_name_class_list: ClassList, new_values: dict[str, Any]) -> None:
"""If we set the name_field of an object in the ClassList to one already defined, we should raise a ValueError."""
with pytest.raises(
ValueError,
match=f"Input arguments contain the {two_name_class_list.name_field} "
f"'{new_values[two_name_class_list.name_field]}', "
f"which is already specified in the ClassList",
):
two_name_class_list.set_fields(0, **new_values)
@pytest.mark.parametrize(
["class_list", "expected_names"],
[
(ClassList([InputAttributes(name="Alice"), InputAttributes(name="Bob")]), ["Alice", "Bob"]),
(ClassList([InputAttributes(id="Alice"), InputAttributes(id="Bob")], name_field="id"), ["Alice", "Bob"]),
(ClassList([InputAttributes(name="Alice"), InputAttributes(name="Bob")], name_field="id"), []),
(ClassList([InputAttributes(surname="Morgan"), InputAttributes(surname="Terwilliger")]), []),
(
ClassList([InputAttributes(name="Alice", surname="Morgan"), InputAttributes(surname="Terwilliger")]),
["Alice"],
),
(
ClassList(
[InputAttributes(name="Alice", surname="Morgan"), InputAttributes(surname="Terwilliger")],
name_field="surname",
),
["Morgan", "Terwilliger"],
),
(ClassList(InputAttributes()), []),
],
)
def test_get_names(class_list: ClassList, expected_names: list[str]) -> None:
"""We should get a list of the values of the name_field attribute from each object with it defined in the
ClassList.
"""
assert class_list.get_names() == expected_names
@pytest.mark.parametrize(
["class_list", "expected_matches"],
[
(ClassList([InputAttributes(name="Alice"), InputAttributes(name="Bob")]), [(0, "name")]),
(ClassList([InputAttributes(name="Alice"), InputAttributes(name="Bob", id="Alice")]), [(0, "name"), (1, "id")]),
(ClassList([InputAttributes(surname="Morgan"), InputAttributes(surname="Terwilliger")]), []),
(ClassList(InputAttributes()), []),
],
)
def test_get_all_matches(class_list: ClassList, expected_matches: list[tuple]) -> None:
"""We should get a list of (index, field) tuples matching the given value in the ClassList."""
assert class_list.get_all_matches("Alice") == expected_matches
@pytest.mark.parametrize(
"input_dict",
[
({"name": "Eve"}),
({"surname": "Polastri"}),
],
)
def test__validate_name_field(two_name_class_list: ClassList, input_dict: dict[str, Any]) -> None:
"""We should not raise an error if the input values do not contain a name_field value defined in an object in the
ClassList.
"""
assert two_name_class_list._validate_name_field(input_dict) is None
@pytest.mark.parametrize(
"input_dict",
[
({"name": "Alice"}),
],
)
def test__validate_name_field_not_unique(two_name_class_list: ClassList, input_dict: dict[str, Any]) -> None:
"""We should raise a ValueError if we input values containing a name_field defined in an object in the ClassList."""
with pytest.raises(
ValueError,
match=f"Input arguments contain the {two_name_class_list.name_field} "
f"'{input_dict[two_name_class_list.name_field]}', "
f"which is already specified in the ClassList",
):
two_name_class_list._validate_name_field(input_dict)
@pytest.mark.parametrize(
"input_list",
[
([InputAttributes(name="Alice"), InputAttributes(name="Bob")]),
([InputAttributes(surname="Morgan"), InputAttributes(surname="Terwilliger")]),
([InputAttributes(name="Alice", surname="Morgan"), InputAttributes(surname="Terwilliger")]),
([InputAttributes()]),
([]),
],
)
def test__check_unique_name_fields(two_name_class_list: ClassList, input_list: Iterable) -> None:
"""We should not raise an error if an input list contains objects with different name_field values, or if the
name_field is not defined.
"""
assert two_name_class_list._check_unique_name_fields(input_list) is None
@pytest.mark.parametrize(
"input_list",
[
([InputAttributes(name="Alice"), InputAttributes(name="Alice")]),
],
)
def test__check_unique_name_fields_not_unique(two_name_class_list: ClassList, input_list: Iterable) -> None:
"""We should raise a ValueError if an input list contains multiple objects with matching name_field values
defined.
"""
with pytest.raises(
ValueError,
match=f"Input list contains objects with the same value of the " f"{two_name_class_list.name_field} attribute",
):
two_name_class_list._check_unique_name_fields(input_list)
@pytest.mark.parametrize(
"input_list",
[
([InputAttributes(name="Alice"), InputAttributes(name="Bob")]),
],
)
def test__check_classes(input_list: Iterable) -> None:
"""We should not raise an error all objects in the ClassList are of the same type."""
class_list = ClassList([InputAttributes()])
assert class_list._check_classes(input_list) is None
@pytest.mark.parametrize(
"input_list",
[
([InputAttributes(name="Alice"), dict(name="Bob")]),
],
)
def test__check_classes_different_classes(input_list: Iterable) -> None:
"""We should raise a ValueError if an input list contains objects of different types."""
class_list = ClassList([InputAttributes()])
with pytest.raises(
ValueError,
match=(f"Input list contains elements of type other " f"than '{class_list._class_handle.__name__}'"),
):
class_list._check_classes(input_list)
@pytest.mark.parametrize(
["value", "expected_output"],
[
("Alice", InputAttributes(name="Alice")),
("Eve", "Eve"),
],
)
def test__get_item_from_name_field(
two_name_class_list: ClassList,
value: str,
expected_output: Union[object, str],
) -> None:
"""When we input the name_field value of an object defined in the ClassList, we should return the object.
If the value is not the name_field of an object defined in the ClassList, we should return the value.
"""
assert two_name_class_list._get_item_from_name_field(value) == expected_output
@pytest.mark.parametrize(
["input_list", "expected_type"],
[
([InputAttributes(name="Alice")], InputAttributes),
([InputAttributes(name="Alice"), SubInputAttributes(name="Bob")], InputAttributes),
([SubInputAttributes(name="Alice"), InputAttributes(name="Bob")], InputAttributes),
([SubInputAttributes(name="Alice"), SubInputAttributes(name="Bob")], SubInputAttributes),
(
[SubInputAttributes(name="Alice"), SubInputAttributes(name="Bob"), InputAttributes(name="Eve")],
InputAttributes,
),
([InputAttributes(name="Alice"), dict(name="Bob")], InputAttributes),
([dict(name="Alice"), InputAttributes(name="Bob")], dict),
],
)
def test_determine_class_handle(input_list: ClassList, expected_type: type) -> None:
"""The _class_handle for the ClassList should be the type that satisfies the condition "isinstance(element, type)"
for all elements in the ClassList.
"""
assert ClassList._determine_class_handle(input_list) == expected_type