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Add test for #303 #305

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Merged
davidparsson merged 1 commit into from
Jan 9, 2026
Merged

Add test for #303 #305

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13 changes: 12 additions & 1 deletion injector_test.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@
import warnings
from contextlib import contextmanager
from dataclasses import dataclass
from typing import Any, NewType, Optional, Union
from typing import Any, Literal, NewType, Optional, Union

if sys.version_info >= (3, 9):
from typing import Annotated
Expand Down Expand Up @@ -2246,3 +2246,14 @@ def provide_second(self) -> Annotated[str, 'second']:
injector = Injector(module)
assert injector.get(Annotated[str, 'first']) == 'Bob'
assert injector.get(Annotated[str, 'second']) == 'Iger'


# Test for https://github.com/alecthomas/injector/issues/303
@pytest.mark.skipif(sys.version_info < (3, 10), reason="Requires Python 3.10+")
def test_can_inject_dataclass_with_literal_value():
@dataclass(slots=True)
class ServiceConfig:
environment: Literal["prod", "test"] = "test"

injector = Injector()
assert injector.get(ServiceConfig).environment == "test"