feat: empty async context object #59

src/_primitives/async_context.py

@@ -0,0 +1,8 @@
+class AsyncContext:
+    """An object appropriate to fake async context manager."""
+
+    async def __aenter__(self):
+        ...
+
+    async def __aexit__(self, exc_type, exc_value, traceback):
+        ...

src/primitives/__init__.py

@@ -1,8 +1,9 @@
 """Fake objects designed with OOP in mind."""
 from _primitives.argument import Argument
+from _primitives.async_context import AsyncContext
 from _primitives.awaitable import Awaitable
 from _primitives.callable import Callable
 from _primitives.instance import Instance
 
 
-__all__ = ["Argument", "Awaitable", "Callable", "Instance"]
+__all__ = ["Argument", "Awaitable", "Callable", "Instance", "AsyncContext"]

tests/test_async_context.py

@@ -0,0 +1,16 @@
+"""Tests related to `primitives.AsyncContext` object."""
+import pytest
+
+from primitives import AsyncContext
+
+
+@pytest.mark.asyncio()
+async def test_async_context_object_return_null():
+    """Empty `AsyncContext` object should return null.
+
+    An async context object is empty when return value was not specified.
+
+    """
+    async_context = AsyncContext()
+    async with async_context as result:
+        assert result is None