diff --git a/api/tests/unit_tests/services/enterprise/test_enterprise_service.py b/api/tests/unit_tests/services/enterprise/test_enterprise_service.py
deleted file mode 100644
index b4201aa061..0000000000
--- a/api/tests/unit_tests/services/enterprise/test_enterprise_service.py
+++ /dev/null
@@ -1,125 +0,0 @@
-"""Unit tests for enterprise service integrations.
-
-This module covers the enterprise-only default workspace auto-join behavior:
-- Enterprise mode disabled: no external calls
-- Successful join / skipped join: no errors
-- Failures (network/invalid response/invalid UUID): soft-fail wrapper must not raise
-"""
-
-from unittest.mock import patch
-
-import pytest
-
-from services.enterprise.enterprise_service import (
-    DefaultWorkspaceJoinResult,
-    EnterpriseService,
-    try_join_default_workspace,
-)
-
-
-class TestJoinDefaultWorkspace:
-    def test_join_default_workspace_success(self):
-        account_id = "11111111-1111-1111-1111-111111111111"
-        response = {"workspace_id": "22222222-2222-2222-2222-222222222222", "joined": True, "message": "ok"}
-
-        with patch("services.enterprise.enterprise_service.EnterpriseRequest.send_request") as mock_send_request:
-            mock_send_request.return_value = response
-
-            result = EnterpriseService.join_default_workspace(account_id=account_id)
-
-            assert isinstance(result, DefaultWorkspaceJoinResult)
-            assert result.workspace_id == response["workspace_id"]
-            assert result.joined is True
-            assert result.message == "ok"
-
-            mock_send_request.assert_called_once_with(
-                "POST",
-                "/default-workspace/members",
-                json={"account_id": account_id},
-            )
-
-    def test_join_default_workspace_invalid_response_format_raises(self):
-        account_id = "11111111-1111-1111-1111-111111111111"
-
-        with patch("services.enterprise.enterprise_service.EnterpriseRequest.send_request") as mock_send_request:
-            mock_send_request.return_value = "not-a-dict"
-
-            with pytest.raises(ValueError, match="Invalid response format"):
-                EnterpriseService.join_default_workspace(account_id=account_id)
-
-    def test_join_default_workspace_invalid_account_id_raises(self):
-        with pytest.raises(ValueError):
-            EnterpriseService.join_default_workspace(account_id="not-a-uuid")
-
-
-class TestTryJoinDefaultWorkspace:
-    def test_try_join_default_workspace_enterprise_disabled_noop(self):
-        with (
-            patch("services.enterprise.enterprise_service.dify_config") as mock_config,
-            patch("services.enterprise.enterprise_service.EnterpriseService.join_default_workspace") as mock_join,
-        ):
-            mock_config.ENTERPRISE_ENABLED = False
-
-            try_join_default_workspace("11111111-1111-1111-1111-111111111111")
-
-            mock_join.assert_not_called()
-
-    def test_try_join_default_workspace_successful_join_does_not_raise(self):
-        account_id = "11111111-1111-1111-1111-111111111111"
-
-        with (
-            patch("services.enterprise.enterprise_service.dify_config") as mock_config,
-            patch("services.enterprise.enterprise_service.EnterpriseService.join_default_workspace") as mock_join,
-        ):
-            mock_config.ENTERPRISE_ENABLED = True
-            mock_join.return_value = DefaultWorkspaceJoinResult(
-                workspace_id="22222222-2222-2222-2222-222222222222",
-                joined=True,
-                message="ok",
-            )
-
-            # Should not raise
-            try_join_default_workspace(account_id)
-
-            mock_join.assert_called_once_with(account_id=account_id)
-
-    def test_try_join_default_workspace_skipped_join_does_not_raise(self):
-        account_id = "11111111-1111-1111-1111-111111111111"
-
-        with (
-            patch("services.enterprise.enterprise_service.dify_config") as mock_config,
-            patch("services.enterprise.enterprise_service.EnterpriseService.join_default_workspace") as mock_join,
-        ):
-            mock_config.ENTERPRISE_ENABLED = True
-            mock_join.return_value = DefaultWorkspaceJoinResult(
-                workspace_id="",
-                joined=False,
-                message="no default workspace configured",
-            )
-
-            # Should not raise
-            try_join_default_workspace(account_id)
-
-            mock_join.assert_called_once_with(account_id=account_id)
-
-    def test_try_join_default_workspace_api_failure_soft_fails(self):
-        account_id = "11111111-1111-1111-1111-111111111111"
-
-        with (
-            patch("services.enterprise.enterprise_service.dify_config") as mock_config,
-            patch("services.enterprise.enterprise_service.EnterpriseService.join_default_workspace") as mock_join,
-        ):
-            mock_config.ENTERPRISE_ENABLED = True
-            mock_join.side_effect = Exception("network failure")
-
-            # Should not raise
-            try_join_default_workspace(account_id)
-
-            mock_join.assert_called_once_with(account_id=account_id)
-
-    def test_try_join_default_workspace_invalid_account_id_soft_fails(self):
-        with patch("services.enterprise.enterprise_service.dify_config") as mock_config:
-            mock_config.ENTERPRISE_ENABLED = True
-
-            # Should not raise even though UUID parsing fails inside join_default_workspace
-            try_join_default_workspace("not-a-uuid")