[fix] Test case fixed

test_sites/apps.txt

@@ -0,0 +1 @@
+erpnext

test_sites/languages.txt

@@ -0,0 +1 @@
+en english

test_sites/test_site/site_config.json

@@ -0,0 +1,12 @@
+{
+ "db_name": "test_frappe",
+ "db_password": "test_frappe",
+ "auto_email_id": "test@example.com",
+ "mail_server": "smtp.example.com",
+ "mail_login": "test@example.com",
+ "mail_password": "test",
+ "admin_password": "admin",
+ "run_selenium_tests": 1,
+ "host_name": "http://localhost:8000",
+ "install_apps": ["erpnext"]
+}