Add test for in-memory authn

Author: dan-fernandes

tiled/_tests/test_configs/config_in_memory_authn.yml

@@ -0,0 +1,16 @@
+# config.yml
+trees:
+  - path: /
+    tree: tiled.examples.generated_minimal:tree
+uvicorn:
+  host: 0.0.0.0
+  port: 8000
+authentication:
+  providers:
+  - provider: test
+    authenticator: tiled.authenticators:DictionaryAuthenticator
+    args:
+      users_to_passwords:
+        alice: PASSWORD
+  secret_keys:
+    - SECRET

tiled/_tests/test_in_memory_authn.py

@@ -0,0 +1,29 @@
+from pathlib import Path
+
+import numpy
+import yaml
+
+from tiled._tests.utils import enter_username_password
+from tiled.client import Context, from_context
+from tiled.server.app import build_app_from_config
+
+CONFIG_NAME = "in_memory_db.yml"
+CATALOG_STORAGE = "data/"
+
+here = Path(__file__).parent.absolute()
+
+def test_good_path():
+    """Test authn database defaults to in-memory catalog"""
+    with open(here / "test_configs" / "config_in_memory_authn.yml") as config_file:
+        config = yaml.load(config_file, Loader=yaml.BaseLoader)
+
+    app = build_app_from_config(config)
+    context = Context.from_app(app)
+
+    with enter_username_password("alice", "PASSWORD"):
+        client = from_context(context, remember_me=False)
+
+    client.logout()
+    context.close()
+
+    assert True