Fix named tuple issue (#8)

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pytest-lazy-fixtures"
-version = "1.0.3"
+version = "1.0.4"
 description = "Allows you to use fixtures in @pytest.mark.parametrize."
 authors = ["Petrov Anton <antonp2@yandex.ru>"]
 readme = "README.md"

pytest_lazy_fixtures/loader.py

@@ -12,8 +12,10 @@ def load_lazy_fixtures(value, request: pytest.FixtureRequest):
         )
     if isinstance(value, LazyFixtureWrapper):
         return value.load_fixture(request)
-    if isinstance(value, dict):
+    # we need to check exact type
+    if type(value) is dict:  # noqa: E721
         return {key: load_lazy_fixtures(value, request) for key, value in value.items()}
-    elif isinstance(value, (list, tuple, set)):
+    # we need to check exact type
+    elif type(value) in {list, tuple, set}:
         return type(value)([load_lazy_fixtures(value, request) for value in value])
     return value

tests/entity.py

@@ -1,4 +1,5 @@
 from dataclasses import dataclass
+from typing import NamedTuple
 
 
 @dataclass
@@ -7,3 +8,8 @@ class Entity:
 
     def sum(self, value: int) -> int:
         return self.value + value
+
+
+class DataNamedTuple(NamedTuple):
+    a: int
+    b: int

tests/tests.py

@@ -3,7 +3,7 @@
 from pytest_lazy_fixtures import lf, lfc
 from pytest_lazy_fixtures.lazy_fixture import LazyFixtureWrapper
 from pytest_lazy_fixtures.lazy_fixture_callable import LazyFixtureCallableWrapper
-from tests.entity import Entity
+from tests.entity import DataNamedTuple, Entity
 
 
 def test_lazy_fixture_repr():
@@ -73,3 +73,9 @@ def test_lazy_fixture_callable_with_lf(formatted, entity):
 @pytest.mark.parametrize("result", [lfc("entity.sum", lf("two"))])
 def test_lazy_fixture_callable_with_attr_lf(result):
     assert result == 3
+
+
+@pytest.mark.parametrize("data", [DataNamedTuple(a=1, b=2)])
+def test(data):
+    assert data.a == 1
+    assert data.b == 2