docs: add network printer settings example (#148)

beam/docs/print_server.md

@@ -11,3 +11,11 @@ There are several steps to get a print server connected in ERPNext.
 3. The user must also create a new `Network Printer Settings` document and fill in the relevant information.
 
 ![Screen shot of the Network Printer Settings document fields, including Name, Printer Name, Server IP, and Port.](./assets/network_printer_settings.png)
+
+A convenient Print Handling Unit button on relevant doctypes enables the user to print new Handling Unit labels directly from the ERPNext user interface.
+
+![Screen shot showing the Print Handling Unit button at the top of a form.](./assets/print_hu.png)
+
+Any configured network printers will display as options in the Select Printer Setting dialog.
+
+![Screen shot of the Select Printer Setting dialog with two example printer options displaying as options.](./assets/select_printer_dialog.png)

beam/tests/setup.py

@@ -90,6 +90,7 @@ def create_test_data():
 		create_material_request(settings)
 	create_production_plan(settings, prod_plan_from_doc)
 	create_purchase_receipt_for_received_qty_test(settings)
+	create_network_printer_settings(settings)
 
 
 def create_suppliers(settings):
@@ -570,3 +571,18 @@ def create_purchase_receipt_for_received_qty_test(settings):
 		},
 	)
 	pr.save()
+
+
+def create_network_printer_settings(settings):
+	printer_settings = [
+		{"name": "Receiving Printer", "server_ip": "localhost", "port": 8888},
+		{"name": "Kitchen Printer", "server_ip": "localhost", "port": 9999},
+	]
+	for ps in printer_settings:
+		if not frappe.db.exists("Network Printer Settings", ps):
+			nps = frappe.new_doc("Network Printer Settings")
+			nps.name = ps["name"]
+			nps.server_ip = ps["server_ip"]
+			nps.port = ps["port"]
+			nps.printer_name = ps["name"]
+			nps.save()