test: Add test to check creation of pick list from multiple sales order
diff --git a/erpnext/stock/doctype/pick_list/test_pick_list.py b/erpnext/stock/doctype/pick_list/test_pick_list.py
index d32e345..6b4f73b 100644
--- a/erpnext/stock/doctype/pick_list/test_pick_list.py
+++ b/erpnext/stock/doctype/pick_list/test_pick_list.py
@@ -40,7 +40,7 @@
 				'stock_qty': 5,
 				'conversion_factor': 1,
 				'sales_order': '_T-Sales Order-1',
-				'sales_item': '_T-Sales Order-1_item',
+				'sales_order_item': '_T-Sales Order-1_item',
 			}]
 		})
 		pick_list.set_item_locations()
@@ -93,7 +93,7 @@
 				'stock_qty': 1000,
 				'conversion_factor': 1,
 				'sales_order': '_T-Sales Order-1',
-				'sales_item': '_T-Sales Order-1_item',
+				'sales_order_item': '_T-Sales Order-1_item',
 			}]
 		})
 
@@ -134,7 +134,7 @@
 				'stock_qty': 1000,
 				'conversion_factor': 1,
 				'sales_order': '_T-Sales Order-1',
-				'sales_item': '_T-Sales Order-1_item',
+				'sales_order_item': '_T-Sales Order-1_item',
 			}]
 		})
 
@@ -144,8 +144,68 @@
 		self.assertEqual(pick_list.locations[0].qty, 5)
 		self.assertEqual(pick_list.locations[0].serial_no, '123450\n123451\n123452\n123453\n123454')
 
-	# def test_pick_list_for_multiple_reference_doctypes(self):
-	# 	pass
+	def test_pick_list_for_items_from_multiple_sales_orders(self):
+		try:
+			frappe.get_doc({
+				'doctype': 'Stock Reconciliation',
+				'company': '_Test Company',
+				'purpose': 'Opening Stock',
+				'expense_account': 'Temporary Opening - _TC',
+				'items': [{
+					'item_code': '_Test Item Home Desktop 100',
+					'warehouse': '_Test Warehouse - _TC',
+					'valuation_rate': 100,
+					'qty': 10
+				}]
+			}).submit()
+		except EmptyStockReconciliationItemsError:
+			pass
+
+		sales_order = frappe.get_doc({
+				'doctype': "Sales Order",
+				'customer': '_Test Customer',
+				'company': '_Test Company',
+				'items': [{
+					'item_code': '_Test Item Home Desktop 100',
+					'qty': 10,
+					'delivery_date': frappe.utils.today()
+				}],
+			})
+		sales_order.submit()
+
+		pick_list = frappe.get_doc({
+			'doctype': 'Pick List',
+			'company': '_Test Company',
+			'customer': '_Test Customer',
+			'items_based_on': 'Sales Order',
+			'locations': [{
+				'item_code': '_Test Item Home Desktop 100',
+				'qty': 5,
+				'stock_qty': 5,
+				'conversion_factor': 1,
+				'sales_order': '_T-Sales Order-1',
+				'sales_order_item': '_T-Sales Order-1_item',
+			}, {
+				'item_code': '_Test Item Home Desktop 100',
+				'qty': 5,
+				'stock_qty': 5,
+				'conversion_factor': 1,
+				'sales_order': sales_order.name,
+				'sales_order_item': sales_order.items[0].name,
+			}]
+		})
+		pick_list.set_item_locations()
+
+		self.assertEqual(pick_list.locations[0].item_code, '_Test Item Home Desktop 100')
+		self.assertEqual(pick_list.locations[0].warehouse, '_Test Warehouse - _TC')
+		self.assertEqual(pick_list.locations[0].qty, 5)
+		self.assertEqual(pick_list.locations[0].sales_order_item, '_T-Sales Order-1_item')
+
+		self.assertEqual(pick_list.locations[1].item_code, '_Test Item Home Desktop 100')
+		self.assertEqual(pick_list.locations[1].warehouse, '_Test Warehouse - _TC')
+		self.assertEqual(pick_list.locations[1].qty, 5)
+		self.assertEqual(pick_list.locations[1].sales_order_item, sales_order.items[0].name)
+
 
 	# def test_pick_list_skips_items_in_expired_batch(self):
 	# 	pass