LCORE-740: Type hints in conversation cache unit tests

tests/unit/cache/test_cache_factory.py

@@ -1,5 +1,7 @@
 """Unit tests for CacheFactory class."""
 
+from pathlib import Path
+
 import pytest
 from pytest_mock import MockerFixture
 
@@ -25,21 +27,21 @@
 
 
 @pytest.fixture(scope="module", name="noop_cache_config_fixture")
-def noop_cache_config():
+def noop_cache_config() -> ConversationCacheConfiguration:
     """Fixture containing initialized instance of ConversationCacheConfiguration."""
     return ConversationCacheConfiguration(type=CACHE_TYPE_NOOP)
 
 
 @pytest.fixture(scope="module", name="memory_cache_config_fixture")
-def memory_cache_config():
+def memory_cache_config() -> ConversationCacheConfiguration:
     """Fixture containing initialized instance of InMemory cache."""
     return ConversationCacheConfiguration(
         type=CACHE_TYPE_MEMORY, memory=InMemoryCacheConfig(max_entries=10)
     )
 
 
 @pytest.fixture(scope="module", name="postgres_cache_config_fixture")
-def postgres_cache_config():
+def postgres_cache_config() -> ConversationCacheConfiguration:
     """Fixture containing initialized instance of PostgreSQL cache."""
     return ConversationCacheConfiguration(
         type=CACHE_TYPE_POSTGRES,
@@ -50,7 +52,7 @@ def postgres_cache_config():
 
 
 @pytest.fixture(name="sqlite_cache_config_fixture")
-def sqlite_cache_config(tmpdir):
+def sqlite_cache_config(tmpdir: Path) -> ConversationCacheConfiguration:
     """Fixture containing initialized instance of SQLite cache."""
     db_path = str(tmpdir / "test.sqlite")
     return ConversationCacheConfiguration(
@@ -59,30 +61,34 @@ def sqlite_cache_config(tmpdir):
 
 
 @pytest.fixture(scope="module", name="invalid_cache_type_config_fixture")
-def invalid_cache_type_config():
+def invalid_cache_type_config() -> ConversationCacheConfiguration:
     """Fixture containing instance of ConversationCacheConfiguration with improper settings."""
     c = ConversationCacheConfiguration()
     c.type = "foo bar baz"
     return c
 
 
-def test_conversation_cache_noop(noop_cache_config_fixture):
+def test_conversation_cache_noop(
+    noop_cache_config_fixture: ConversationCacheConfiguration,
+) -> None:
     """Check if NoopCache is returned by factory with proper configuration."""
     cache = CacheFactory.conversation_cache(noop_cache_config_fixture)
     assert cache is not None
     # check if the object has the right type
     assert isinstance(cache, NoopCache)
 
 
-def test_conversation_cache_in_memory(memory_cache_config_fixture):
+def test_conversation_cache_in_memory(
+    memory_cache_config_fixture: ConversationCacheConfiguration,
+) -> None:
     """Check if InMemoryCache is returned by factory with proper configuration."""
     cache = CacheFactory.conversation_cache(memory_cache_config_fixture)
     assert cache is not None
     # check if the object has the right type
     assert isinstance(cache, InMemoryCache)
 
 
-def test_conversation_cache_in_memory_improper_config():
+def test_conversation_cache_in_memory_improper_config() -> None:
     """Check if memory cache configuration is checked in cache factory."""
     cc = ConversationCacheConfiguration(
         type=CACHE_TYPE_MEMORY, memory=InMemoryCacheConfig(max_entries=10)
@@ -93,15 +99,17 @@ def test_conversation_cache_in_memory_improper_config():
         _ = CacheFactory.conversation_cache(cc)
 
 
-def test_conversation_cache_sqlite(sqlite_cache_config_fixture):
+def test_conversation_cache_sqlite(
+    sqlite_cache_config_fixture: ConversationCacheConfiguration,
+) -> None:
     """Check if SQLiteCache is returned by factory with proper configuration."""
     cache = CacheFactory.conversation_cache(sqlite_cache_config_fixture)
     assert cache is not None
     # check if the object has the right type
     assert isinstance(cache, SQLiteCache)
 
 
-def test_conversation_cache_sqlite_improper_config(tmpdir):
+def test_conversation_cache_sqlite_improper_config(tmpdir: Path) -> None:
     """Check if memory cache configuration is checked in cache factory."""
     db_path = str(tmpdir / "test.sqlite")
     cc = ConversationCacheConfiguration(
@@ -114,8 +122,8 @@ def test_conversation_cache_sqlite_improper_config(tmpdir):
 
 
 def test_conversation_cache_postgres(
-    postgres_cache_config_fixture, mocker: MockerFixture
-):
+    postgres_cache_config_fixture: ConversationCacheConfiguration, mocker: MockerFixture
+) -> None:
     """Check if PostgreSQL is returned by factory with proper configuration."""
     mocker.patch("psycopg2.connect")
     cache = CacheFactory.conversation_cache(postgres_cache_config_fixture)
@@ -124,7 +132,7 @@ def test_conversation_cache_postgres(
     assert isinstance(cache, PostgresCache)
 
 
-def test_conversation_cache_postgres_improper_config():
+def test_conversation_cache_postgres_improper_config() -> None:
     """Check if PostgreSQL cache configuration is checked in cache factory."""
     cc = ConversationCacheConfiguration(
         type=CACHE_TYPE_POSTGRES,
@@ -138,7 +146,7 @@ def test_conversation_cache_postgres_improper_config():
         _ = CacheFactory.conversation_cache(cc)
 
 
-def test_conversation_cache_no_type():
+def test_conversation_cache_no_type() -> None:
     """Check if wrong cache configuration is detected properly."""
     cc = ConversationCacheConfiguration(type=CACHE_TYPE_NOOP)
     # simulate improper configuration (can not be done directly as model checks this)
@@ -147,7 +155,9 @@ def test_conversation_cache_no_type():
         CacheFactory.conversation_cache(cc)
 
 
-def test_conversation_cache_wrong_cache(invalid_cache_type_config_fixture):
+def test_conversation_cache_wrong_cache(
+    invalid_cache_type_config_fixture: ConversationCacheConfiguration,
+) -> None:
     """Check if wrong cache configuration is detected properly."""
     with pytest.raises(ValueError, match="Invalid cache type"):
         CacheFactory.conversation_cache(invalid_cache_type_config_fixture)

tests/unit/cache/test_noop_cache.py

@@ -3,8 +3,8 @@
 import pytest
 
 from models.cache_entry import CacheEntry
-from cache.noop_cache import NoopCache
 from utils import suid
+from cache.noop_cache import NoopCache
 
 USER_ID = suid.get_suid()
 CONVERSATION_ID = suid.get_suid()
@@ -28,19 +28,19 @@
 
 
 @pytest.fixture(name="cache_fixture")
-def cache():
+def cache() -> NoopCache:
     """Fixture with constucted and initialized in memory cache object."""
     c = NoopCache()
     c.initialize_cache()
     return c
 
 
-def test_connect(cache_fixture):
+def test_connect(cache_fixture: NoopCache) -> None:
     """Test the behavior of connect method."""
     cache_fixture.connect()
 
 
-def test_insert_or_append(cache_fixture):
+def test_insert_or_append(cache_fixture: NoopCache) -> None:
     """Test the behavior of insert_or_append method."""
     cache_fixture.insert_or_append(
         USER_ID,
@@ -49,15 +49,15 @@ def test_insert_or_append(cache_fixture):
     )
 
 
-def test_insert_or_append_skip_user_id_check(cache_fixture):
+def test_insert_or_append_skip_user_id_check(cache_fixture: NoopCache) -> None:
     """Test the behavior of insert_or_append method."""
     skip_user_id_check = True
     cache_fixture.insert_or_append(
         USER_PROVIDED_USER_ID, CONVERSATION_ID, cache_entry_1, skip_user_id_check
     )
 
 
-def test_insert_or_append_existing_key(cache_fixture):
+def test_insert_or_append_existing_key(cache_fixture: NoopCache) -> None:
     """Test the behavior of insert_or_append method for existing item."""
     cache_fixture.insert_or_append(
         USER_ID,
@@ -71,15 +71,15 @@ def test_insert_or_append_existing_key(cache_fixture):
     )
 
 
-def test_get_nonexistent_user(cache_fixture):
+def test_get_nonexistent_user(cache_fixture: NoopCache) -> None:
     """Test how non-existent items are handled by the cache."""
     # this UUID is different from DEFAULT_USER_UID
     assert (
         cache_fixture.get("ffffffff-ffff-ffff-ffff-ffffffffffff", CONVERSATION_ID) == []
     )
 
 
-def test_delete_existing_conversation(cache_fixture):
+def test_delete_existing_conversation(cache_fixture: NoopCache) -> None:
     """Test deleting an existing conversation."""
     cache_fixture.insert_or_append(USER_ID, CONVERSATION_ID, cache_entry_1)
 
@@ -88,19 +88,19 @@ def test_delete_existing_conversation(cache_fixture):
     assert result is True
 
 
-def test_delete_nonexistent_conversation(cache_fixture):
+def test_delete_nonexistent_conversation(cache_fixture: NoopCache) -> None:
     """Test deleting a conversation that doesn't exist."""
     result = cache_fixture.delete(USER_ID, CONVERSATION_ID)
     assert result is True
 
 
-def test_delete_improper_conversation_id(cache_fixture):
+def test_delete_improper_conversation_id(cache_fixture: NoopCache) -> None:
     """Test delete with invalid conversation ID."""
     with pytest.raises(ValueError, match="Invalid conversation ID"):
         cache_fixture.delete(USER_ID, "invalid-id")
 
 
-def test_delete_skip_user_id_check(cache_fixture):
+def test_delete_skip_user_id_check(cache_fixture: NoopCache) -> None:
     """Test deleting an existing conversation."""
     skip_user_id_check = True
     cache_fixture.insert_or_append(
@@ -114,7 +114,7 @@ def test_delete_skip_user_id_check(cache_fixture):
     assert result is True
 
 
-def test_list_conversations(cache_fixture):
+def test_list_conversations(cache_fixture: NoopCache) -> None:
     """Test listing conversations for a user."""
     # Create multiple conversations
     conversation_id_1 = suid.get_suid()
@@ -128,7 +128,7 @@ def test_list_conversations(cache_fixture):
     assert len(conversations) == 0
 
 
-def test_list_conversations_skip_user_id_check(cache_fixture):
+def test_list_conversations_skip_user_id_check(cache_fixture: NoopCache) -> None:
     """Test listing conversations for a user."""
     # Create multiple conversations
     conversation_id_1 = suid.get_suid()
@@ -147,13 +147,13 @@ def test_list_conversations_skip_user_id_check(cache_fixture):
     assert len(conversations) == 0
 
 
-def test_list_no_conversations(cache_fixture):
+def test_list_no_conversations(cache_fixture: NoopCache) -> None:
     """Test listing conversations for a user with no conversations."""
     conversations = cache_fixture.list(USER_ID)
     assert len(conversations) == 0
 
 
-def test_ready(cache_fixture):
+def test_ready(cache_fixture: NoopCache) -> None:
     """Test if in memory cache always report ready."""
     assert cache_fixture.ready()
 
@@ -172,27 +172,27 @@ def test_ready(cache_fixture):
 
 
 @pytest.mark.parametrize("uuid", improper_user_uuids)
-def test_list_improper_user_id(cache_fixture, uuid):
+def test_list_improper_user_id(cache_fixture: NoopCache, uuid: str | None) -> None:
     """Test list with invalid user ID."""
     with pytest.raises(ValueError, match=f"Invalid user ID {uuid}"):
         cache_fixture.list(uuid)
 
 
 @pytest.mark.parametrize("uuid", improper_user_uuids)
-def test_delete_improper_user_id(cache_fixture, uuid):
+def test_delete_improper_user_id(cache_fixture: NoopCache, uuid: str | None) -> None:
     """Test delete with invalid user ID."""
     with pytest.raises(ValueError, match=f"Invalid user ID {uuid}"):
         cache_fixture.delete(uuid, CONVERSATION_ID)
 
 
 @pytest.mark.parametrize("uuid", improper_user_uuids)
-def test_get_improper_user_id(cache_fixture, uuid):
+def test_get_improper_user_id(cache_fixture: NoopCache, uuid: str | None) -> None:
     """Test how improper user ID is handled."""
     with pytest.raises(ValueError, match=f"Invalid user ID {uuid}"):
         cache_fixture.get(uuid, CONVERSATION_ID)
 
 
-def test_get_improper_conversation_id(cache_fixture):
+def test_get_improper_conversation_id(cache_fixture: NoopCache) -> None:
     """Test how improper conversation ID is handled."""
     with pytest.raises(ValueError, match="Invalid conversation ID"):
         cache_fixture.get(USER_ID, "this-is-not-valid-uuid")