diff --git a/frappe/parallel_test_runner.py b/frappe/parallel_test_runner.py
index 9459c3b586..fd2453608d 100644
--- a/frappe/parallel_test_runner.py
+++ b/frappe/parallel_test_runner.py
@@ -85,7 +85,6 @@ class ParallelTestRunner:
 			print("running tests from", "/".join(file_info))
 			return
 
-		frappe.set_user("Administrator")
 		path, filename = file_info
 		module = self.get_module(path, filename)
 		test_suite = unittest.TestSuite()
diff --git a/frappe/tests/classes/unit_test_case.py b/frappe/tests/classes/unit_test_case.py
index 8ae656f5eb..45b8e56963 100644
--- a/frappe/tests/classes/unit_test_case.py
+++ b/frappe/tests/classes/unit_test_case.py
@@ -49,6 +49,10 @@ class UnitTestCase(unittest.TestCase, BaseTestCase):
 		super().setUpClass()
 		cls.doctype = _get_doctype_from_module(cls)
 		cls.module = frappe.get_module(cls.__module__)
+		# Test Environment
+		frappe.set_user("Administrator")
+		# Test Environment (cleanup)
+		cls.addClassCleanup(frappe.set_user, "Administrator")
 		cls._unit_test_case_class_setup_done = True
 
 	def assertQueryEqual(self, first: str, second: str) -> None: