feat: plugins and public api (#71)

tests/plugin_fixtures.py

@@ -0,0 +1,47 @@
+from __future__ import annotations
+
+from dataclasses import dataclass
+from typing import Any, Callable, Iterable
+
+
+@dataclass(frozen=True, slots=True)
+class FakeDist:
+    name: str
+
+
+class FakeEntryPoint:
+    def __init__(
+        self,
+        name: str,
+        value: str,
+        group: str,
+        *,
+        loader: Callable[[], Any] | None = None,
+        dist_name: str | None = "takopi",
+    ) -> None:
+        self.name = name
+        self.value = value
+        self.group = group
+        self._loader = loader or (lambda: None)
+        self.dist = FakeDist(dist_name) if dist_name else None
+
+    def load(self) -> Any:
+        return self._loader()
+
+
+class FakeEntryPoints(list):
+    def select(self, *, group: str) -> list[FakeEntryPoint]:
+        return [ep for ep in self if ep.group == group]
+
+    def get(self, group: str, default: Iterable[Any] | None = None) -> list[Any]:
+        _ = default
+        return [ep for ep in self if ep.group == group]
+
+
+def install_entrypoints(monkeypatch, entrypoints: Iterable[FakeEntryPoint]) -> None:
+    from takopi import plugins
+
+    def _entry_points() -> FakeEntryPoints:
+        return FakeEntryPoints(entrypoints)
+
+    monkeypatch.setattr(plugins, "entry_points", _entry_points)