test: improve coverage and raise threshold to 80% (#154)

tests/test_telegram_topics_helpers.py

@@ -0,0 +1,34 @@
+from dataclasses import replace
+
+from takopi.settings import TelegramTopicsSettings
+from takopi.telegram.topics import _resolve_topics_scope_raw, _topics_command_error
+from tests.telegram_fakes import FakeTransport, make_cfg
+
+
+def test_resolve_topics_scope_raw() -> None:
+    resolved, chat_ids = _resolve_topics_scope_raw("auto", 1, ())
+    assert resolved == "main"
+    assert chat_ids == frozenset({1})
+
+    resolved, chat_ids = _resolve_topics_scope_raw("projects", 1, (2, 3))
+    assert resolved == "projects"
+    assert chat_ids == frozenset({2, 3})
+
+    resolved, chat_ids = _resolve_topics_scope_raw("all", 1, (2,))
+    assert resolved == "all"
+    assert chat_ids == frozenset({1, 2})
+
+
+def test_topics_command_error_for_wrong_chat() -> None:
+    transport = FakeTransport()
+    cfg = replace(
+        make_cfg(transport),
+        topics=TelegramTopicsSettings(enabled=True, scope="main"),
+    )
+    error = _topics_command_error(
+        cfg,
+        chat_id=999,
+        resolved_scope="main",
+        scope_chat_ids=frozenset({cfg.chat_id}),
+    )
+    assert error == "topics commands are only available in the main chat."