add a very minimal test

src/evohomeasync/main.py

@@ -81,7 +81,7 @@ async def update(
             self._user_info = None
             self._user_locs = None
 
-        if self._user_info is None:
+        if self._user_info is None:  # will handle a bad session_id
             url = "accountInfo"
             try:
                 self._user_info = await self.auth.get(url, schema=SCH_GET_ACCOUNT_INFO)  # type: ignore[assignment]

src/evohomeasync2/main.py

@@ -91,7 +91,7 @@ async def update(  # noqa: C901
             self._user_info = None
             self._user_locs = None
 
-        if self._user_info is None:
+        if self._user_info is None:  # will handle a bad access_token
             url = "userAccount"
             try:
                 self._user_info = await self.auth.get(url, schema=SCH_USER_ACCOUNT)  # type: ignore[assignment]

tests/const.py

@@ -9,9 +9,9 @@
 
 #
 # normally, we want debug flags to be False
+_DBG_DISABLE_STRICT_ASSERTS = False  # of response content-type, schema
 _DBG_TEST_CRED_URLS = False  # avoid 429s: dont invalidate the credential cache
 _DBG_USE_REAL_AIOHTTP = False  # use 'real' aiohttp to reach vendor's servers
-_DBG_DISABLE_STRICT_ASSERTS = False  # of response content-type, schema
 
 #
 # used to construct the default token cache

tests/tests_rf/test_minimal.py

@@ -0,0 +1,44 @@
+"""evohome-async - a minimal test of instantiation/update of each client."""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING
+
+import pytest
+
+from evohome import exceptions as exc
+from tests.const import _DBG_USE_REAL_AIOHTTP
+
+from .common import skipif_auth_failed
+
+if TYPE_CHECKING:
+    from tests.conftest import EvohomeClientv0, EvohomeClientv2
+
+
+#######################################################################################
+
+
+@skipif_auth_failed
+@pytest.mark.skipif(not _DBG_USE_REAL_AIOHTTP, reason="requires vendor's webserver")
+async def test_update_v0(evohome_v0: EvohomeClientv0) -> None:
+    """Make a minimal test of instantiation/update of the v0 client."""
+
+    with pytest.raises(exc.InvalidConfigError):
+        assert evohome_v0.user_account
+
+    await evohome_v0.update()
+
+    assert evohome_v0.user_account
+
+
+@skipif_auth_failed
+@pytest.mark.skipif(not _DBG_USE_REAL_AIOHTTP, reason="requires vendor's webserver")
+async def test_update_v2(evohome_v2: EvohomeClientv2) -> None:
+    """Make a minimal test of instantiation/update of the v2 client."""
+
+    with pytest.raises(exc.InvalidConfigError):
+        assert evohome_v2.user_account
+
+    await evohome_v2.update(_dont_update_status=True)
+
+    assert evohome_v2.user_account