Brian Bjarke JensenandCursor
44b15cb21a
Code Quality Pipeline / code-quality (pull_request) Successful in 24s
PR Title Check / check-title (pull_request) Successful in 35s
Test Python Package / coverage-report (pull_request) Successful in 11s
Test Python Package / unit-tests (pull_request) Successful in 12s
Test Python Package / integration-tests (pull_request) Successful in 26s
Align test layout with the one-test-file-per-interface convention by removing structural_typing_test.py. Co-authored-by: Cursor <[email protected]>
145 lines
3.9 KiB
Python
145 lines
3.9 KiB
Python
"""Unit tests for JsonRepositoryInterface."""
|
|
|
|
from collections.abc import Iterator
|
|
from typing import Any
|
|
|
|
import pytest
|
|
|
|
from python_repositories.interfaces.json_repository_interface import (
|
|
JsonRepositoryInterface,
|
|
)
|
|
|
|
|
|
class InMemoryJsonRepo:
|
|
"""Plain class that satisfies JsonRepositoryInterface without inheritance."""
|
|
|
|
def get(self, key: str) -> dict[str, Any] | None:
|
|
return None
|
|
|
|
def set(self, key: str, data: dict[str, Any]) -> None:
|
|
pass
|
|
|
|
def delete(self, key: str) -> None:
|
|
pass
|
|
|
|
def list_keys(self, pattern: str) -> list[str]:
|
|
return []
|
|
|
|
def scan_keys(
|
|
self,
|
|
pattern: str,
|
|
*,
|
|
count: int | None = None,
|
|
) -> Iterator[str]:
|
|
del count
|
|
yield from self.list_keys(pattern)
|
|
|
|
|
|
def accepts_json_repo(repo: JsonRepositoryInterface) -> None:
|
|
"""Type-checking hook for JsonRepositoryInterface structural subtyping."""
|
|
repo.get("key")
|
|
|
|
|
|
def test_instantiation_fails_when_get_not_implemented() -> None:
|
|
"""Test that instantiation fails if get is not implemented."""
|
|
|
|
class Incomplete(JsonRepositoryInterface):
|
|
"""A class that does not implement get."""
|
|
|
|
def set(self, key: str, data: dict[str, Any]) -> None:
|
|
pass
|
|
|
|
def delete(self, key: str) -> None:
|
|
pass
|
|
|
|
def list_keys(self, pattern: str) -> list[str]:
|
|
return []
|
|
|
|
with pytest.raises(TypeError):
|
|
_ = Incomplete() # type: ignore
|
|
|
|
|
|
def test_instantiation_fails_when_set_not_implemented() -> None:
|
|
"""Test that instantiation fails if set is not implemented."""
|
|
|
|
class Incomplete(JsonRepositoryInterface):
|
|
"""A class that does not implement set."""
|
|
|
|
def get(self, key: str) -> dict[str, Any] | None:
|
|
return None
|
|
|
|
def delete(self, key: str) -> None:
|
|
pass
|
|
|
|
def list_keys(self, pattern: str) -> list[str]:
|
|
return []
|
|
|
|
with pytest.raises(TypeError):
|
|
_ = Incomplete() # type: ignore
|
|
|
|
|
|
def test_instantiation_fails_when_delete_not_implemented() -> None:
|
|
"""Test that instantiation fails if delete is not implemented."""
|
|
|
|
class Incomplete(JsonRepositoryInterface):
|
|
"""A class that does not implement delete."""
|
|
|
|
def get(self, key: str) -> dict[str, Any] | None:
|
|
return None
|
|
|
|
def set(self, key: str, data: dict[str, Any]) -> None:
|
|
pass
|
|
|
|
def list_keys(self, pattern: str) -> list[str]:
|
|
return []
|
|
|
|
with pytest.raises(TypeError):
|
|
_ = Incomplete() # type: ignore
|
|
|
|
|
|
def test_instantiation_fails_when_list_keys_not_implemented() -> None:
|
|
"""Test that instantiation fails if list_keys is not implemented."""
|
|
|
|
class Incomplete(JsonRepositoryInterface):
|
|
"""A class that does not implement list_keys."""
|
|
|
|
def get(self, key: str) -> dict[str, Any] | None:
|
|
return None
|
|
|
|
def set(self, key: str, data: dict[str, Any]) -> None:
|
|
pass
|
|
|
|
def delete(self, key: str) -> None:
|
|
pass
|
|
|
|
with pytest.raises(TypeError):
|
|
_ = Incomplete() # type: ignore
|
|
|
|
|
|
def test_scan_keys_defaults_to_list_keys() -> None:
|
|
"""Test that the default scan_keys implementation delegates to list_keys."""
|
|
|
|
class Complete(JsonRepositoryInterface):
|
|
def get(self, key: str) -> dict[str, Any] | None:
|
|
return None
|
|
|
|
def set(self, key: str, data: dict[str, Any]) -> None:
|
|
pass
|
|
|
|
def delete(self, key: str) -> None:
|
|
pass
|
|
|
|
def list_keys(self, pattern: str) -> list[str]:
|
|
return [f"{pattern}-1", f"{pattern}-2"]
|
|
|
|
repository = Complete()
|
|
|
|
assert list(repository.scan_keys("user")) == ["user-1", "user-2"]
|
|
|
|
|
|
def test_structural_subtyping() -> None:
|
|
"""Test that a plain class satisfies JsonRepositoryInterface structurally."""
|
|
repo: JsonRepositoryInterface = InMemoryJsonRepo()
|
|
accepts_json_repo(repo)
|
|
assert isinstance(repo, JsonRepositoryInterface)
|