fix(core): support entry points provider in get_notifier and add related test

notifiers/core.py

@@ -333,7 +333,7 @@ def get_notifier(provider_name: str, strict: bool = False) -> Provider:
     providers = get_all_providers()
     if provider_name in providers:
         log.debug("found a match for '%s', returning", provider_name)
-        return _all_providers[provider_name]()
+        return providers[provider_name]()
     if strict:
         raise NoSuchNotifierError(name=provider_name)
     return None

tests/test_core.py

@@ -89,6 +89,18 @@ def test_get_notifier(self, mock_provider):
         assert p
         assert isinstance(p, Provider)
 
+    def test_get_notifier_entry_points(self, mock_provider, monkeypatch):
+        from notifiers import get_notifier
+
+        def fake_entry_points(_=None):
+            return {"dummy": type(mock_provider)}
+
+        monkeypatch.setattr("notifiers.core.get_providers_from_entry_points", fake_entry_points)
+
+        p = get_notifier("dummy")
+        assert p
+        assert isinstance(p, type(mock_provider))
+
     def test_all_providers(self, mock_provider, monkeypatch):
         """Test ``all_providers()`` helper function"""