Replace mdf_forge with internal MDFClient in tests

Update test imports to use foundry.mdf_client.MDFClient instead of
mdf_forge.Forge, which is no longer a required dependency.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: blaiszik

tests/test_foundry.py

@@ -15,8 +15,8 @@
 import builtins
 
 import mdf_toolbox
-from mdf_forge import Forge
 from foundry import foundry
+from foundry.mdf_client import MDFClient
 from foundry.foundry_dataset import FoundryDataset
 from foundry.auth import PubAuths
 from foundry.https_upload import upload_to_endpoint
@@ -93,17 +93,17 @@ def _delete_test_data(dataset):
 
 def test_foundry_init():
     f = foundry.Foundry(authorizers=auths)
-    assert isinstance(f.forge_client, Forge)
+    assert isinstance(f.forge_client, MDFClient)
     assert isinstance(f.connect_client, MDFConnectClient)
 
     if not is_gha:
 
         f2 = foundry.Foundry(download=False, authorizers=auths, no_browser=False, no_local_server=True)
-        assert isinstance(f2.forge_client, Forge)
+        assert isinstance(f2.forge_client, MDFClient)
         assert isinstance(f2.connect_client, MDFConnectClient)
 
         f3 = foundry.Foundry(download=False, authorizers=auths, no_browser=True, no_local_server=False)
-        assert isinstance(f3.forge_client, Forge)
+        assert isinstance(f3.forge_client, MDFClient)
         assert isinstance(f3.connect_client, MDFConnectClient)
 
 

tests/test_foundry_components.py

@@ -3,11 +3,11 @@
 import os
 
 from mdf_connect_client import MDFConnectClient
-from mdf_forge import Forge
 import mdf_toolbox
 import pandas as pd
 
 from foundry import foundry
+from foundry.mdf_client import MDFClient
 
 is_gha = os.getenv("GITHUB_ACTIONS")
 client_id = os.getenv("CLIENT_ID")
@@ -87,7 +87,7 @@ def test_foundry_init(auths, elwood_data):
     test_dataset_name, test_doi, expected_title = elwood_data
 
     f = foundry.Foundry(authorizers=auths)
-    assert isinstance(f.forge_client, Forge)
+    assert isinstance(f.forge_client, MDFClient)
     assert isinstance(f.connect_client, MDFConnectClient)
 
 def test_search(auths, elwood_data):