Create Relay Bot MVP

tests/test_attachments.py

@@ -0,0 +1,35 @@
+from app.attachments.service import explicitly_requested
+
+
+def test_group_attachment_is_not_implicitly_accepted() -> None:
+    assert not explicitly_requested(
+        is_private=False,
+        caption=None,
+        replied_with_request=False,
+        command=False,
+        bot_username="relay_bot",
+    )
+
+
+def test_explicit_attachment_rules() -> None:
+    assert explicitly_requested(
+        is_private=True,
+        caption=None,
+        replied_with_request=False,
+        command=False,
+        bot_username="relay_bot",
+    )
+    assert explicitly_requested(
+        is_private=False,
+        caption="please @relay_bot read",
+        replied_with_request=False,
+        command=False,
+        bot_username="relay_bot",
+    )
+    assert explicitly_requested(
+        is_private=False,
+        caption=None,
+        replied_with_request=True,
+        command=False,
+        bot_username="relay_bot",
+    )