🔑 Add authenticated property to context (#917)

* ➕ append `authenticated` property to context as needed. Not yet visible to the client.

* 🖥️ Compute state of `authenticated` property

* 📝 Create tests that check for `authenticated`

* 🏷️ Add `bool` type to `authenticated` definition

Co-authored-by: Dan Allan <[email protected]>

* ✍️ Add Docstring to explain property function

* Docstring must start with one-liner followed by blank line

* Use Examples section and clear variable names

---------

Co-authored-by: Dan Allan <[email protected]>
Co-authored-by: Dan Allan <[email protected]>

tiled/_tests/test_authentication.py

@@ -73,9 +73,19 @@ def test_password_auth(enter_username_password, config):
             from_context(context)
         # Reuse token from cache.
         client = from_context(context)
+        # Check user authentication status string
         assert "authenticated as 'alice'" in repr(client.context)
+        # Check authenticated property exists
+        assert "authenticated" in dir(client.context)
+        # Check authenticated property is True
+        assert client.context.authenticated
         client.logout()
+        # Check authentication status string
         assert "unauthenticated" in repr(client.context)
+        # Check authenticated property still exists
+        assert "authenticated" in dir(client.context)
+        # Check authenticated property is False
+        assert not client.context.authenticated
 
         # Log in as Bob.
         with enter_username_password("bob", "secret2"):
@@ -354,6 +364,10 @@ def test_api_key_activity(enter_username_password, config):
         context.api_key = key_info["secret"]
         assert "authenticated as 'alice'" in repr(context)
         assert "with API key" in repr(context)
+        # Check authenticated property exists
+        assert "authenticated" in dir(context)
+        # Check authenticated property is True
+        assert context.authenticated
         assert key_info["secret"][:8] in repr(context)
         assert key_info["secret"][8:] not in repr(context)
 
@@ -376,6 +390,10 @@ def test_api_key_activity(enter_username_password, config):
         context.api_key = None
         with pytest.raises(RuntimeError):
             context.which_api_key()
+        # Check authenticated property still exists
+        assert "authenticated" in dir(context)
+        # Check authenticated property is False
+        assert not context.authenticated
         # Set the API key.
         context.api_key = secret
         # Now this works again.

tiled/client/context.py

@@ -661,6 +661,28 @@ def configure_auth(self, tokens, remember_me=True):
         auth.sync_set_token("refresh_token", tokens["refresh_token"])
         self.http_client.auth = auth
 
+    @property
+    def authenticated(self) -> bool:
+        """
+        Boolean indicated whether session is authenticated (true) or anonymous (false)
+
+        Examples
+        --------
+
+        An anonymous session at first, after login, is authenticated.
+
+        >>> client.context.authenticated
+        False
+        >>> client.login()
+        Username: USERNAME
+        Password: <input is hidden>
+        >>> client.context.authenticated
+        True
+
+        """
+        # Confirm the state of properties that authentication consists of
+        return (self.api_key is not None) or (self.http_client.auth is not None)
+
     def _token_directory(self):
         # e.g. ~/.config/tiled/tokens/{host:port}
         # with the templated element URL-encoded so it is a valid filename.