diff --git a/erpnext/manufacturing/doctype/bom_update_tool/test_bom_update_tool.py b/erpnext/manufacturing/doctype/bom_update_tool/test_bom_update_tool.py
new file mode 100644
index 0000000..b0851a6
--- /dev/null
+++ b/erpnext/manufacturing/doctype/bom_update_tool/test_bom_update_tool.py
@@ -0,0 +1,25 @@
+# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
+# License: GNU General Public License v3. See license.txt
+
+
+from __future__ import unicode_literals
+import unittest
+import frappe
+
+test_records = frappe.get_test_records('BOM')
+
+class TestBOMUpdateTool(unittest.TestCase):
+	def test_replace_bom(self):
+		current_bom = "BOM-_Test Item Home Desktop Manufactured-001"
+
+		bom_doc = frappe.copy_doc(test_records[0])
+		bom_doc.items[1].item_code = "_Test Item"
+		bom_doc.insert()
+
+		update_tool = frappe.get_doc("BOM Update Tool")
+		update_tool.current_bom = current_bom
+		update_tool.new_bom = bom_doc.name
+		update_tool.replace_bom()
+
+		self.assertFalse(frappe.db.sql("select name from `tabBOM Item` where bom_no=%s", current_bom))
+		self.assertTrue(frappe.db.sql("select name from `tabBOM Item` where bom_no=%s", bom_doc.name))
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