diff --git a/olive/common/utils.py b/olive/common/utils.py
index 5f39996f5..dc5a7f3c1 100644
--- a/olive/common/utils.py
+++ b/olive/common/utils.py
@@ -426,7 +426,7 @@ def all_files(path, ignore=None):
             yield member
 
 
-def copy_dir(src_dir, dst_dir, ignore=None, **kwargs):
+def copy_dir(src_dir, dst_dir, ignore=None, ignore_errors=False, **kwargs):
     """Copy a directory recursively using `shutil.copytree`.
 
     Handles shutil.Error exceptions that happen even though all files were copied successfully.
@@ -434,6 +434,7 @@ def copy_dir(src_dir, dst_dir, ignore=None, **kwargs):
     :param src_dir: The source directory. Can be a string or a `Path` object.
     :param dst_dir: The destination directory. Can be a string or a `Path` object.
     :param ignore: A callable that is used as `ignore` parameter to `shutil.copytree`.
+    :param ignore_errors: If True, suppress RuntimeError even when not all files were copied.
     :param kwargs: Additional kwargs to pass to `shutil.copytree`.
     """
     try:
@@ -449,7 +450,20 @@ def copy_dir(src_dir, dst_dir, ignore=None, **kwargs):
             if not (dst_dir / member.relative_to(src_dir)).exists()
         ]
         if not_copied:
-            raise RuntimeError(f"Failed to copy {not_copied}") from e
+            if ignore_errors:
+                preview = not_copied[:5]
+                extra = len(not_copied) - len(preview)
+                logger.warning(
+                    "Received shutil.Error '%s' and %d files are missing from destination directory "
+                    "(first %d: %s%s). Ignoring errors and continuing.",
+                    e,
+                    len(not_copied),
+                    len(preview),
+                    preview,
+                    f" … and {extra} more" if extra else "",
+                )
+            else:
+                raise RuntimeError(f"Failed to copy {not_copied}") from e
         else:
             logger.warning(
                 "Received shutil.Error '%s' but all required file names exist in destination directory. "
diff --git a/test/__init__.py b/test/__init__.py
index 862c45ce3..3e137e00d 100644
--- a/test/__init__.py
+++ b/test/__init__.py
@@ -2,3 +2,6 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 # --------------------------------------------------------------------------
+from mockey.fixture import patch_mock_module
+
+patch_mock_module()
diff --git a/test/requirements-test.txt b/test/requirements-test.txt
index bebf4bb26..ad7414fe8 100644
--- a/test/requirements-test.txt
+++ b/test/requirements-test.txt
@@ -11,6 +11,7 @@ evaluate
 marshmallow
 ml_dtypes
 mlflow
+mockey<1.0.0
 neural-compressor<2.4
 nncf>=2.19.0
 numpy<2.0.0