[mobile] Shipping tests

[lauty95]

#304

## Pending Work:
test_cancel_submitted_delivery_note Skipped because frontend does not load docstatus when navigating directly to /app/delivery-note/{id} URL.

✅ test_scan_handling_unit_on_delivery_note

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
__init__.py	1	0	100%
beam
barcodes.py	107	39	63%	21, 30, 36–37, 43, 46, 58, 80–81, 83–84, 90–92, 94–96, 103–105, 111, 121, 129, 136, 139–140, 146–147, 153, 159, 165, 171, 183, 186–189, 191–192
handling_unit.py	81	36	55%	32, 64–66, 84, 95–96, 102–103, 105–106, 108–109, 111–112, 114, 116–119, 121–123, 125, 127, 129–130, 135, 137, 141, 143–144, 147, 149–150, 158
printing.py	93	55	40%	18–19, 48, 50–53, 62–66, 70–71, 83–87, 91, 97, 106–112, 114–115, 117, 122, 124–125, 140–145, 147–153, 160–163, 165–168
zpl_layout.py	244	244	0%	12–15, 17, 20, 36, 47–48, 51–52, 54–55, 58, 61, 64–67, 69–71, 77, 81–83, 86–87, 90–91, 93–94, 99, 101, 110–111, 113, 115, 118–120, 122–125, 128–129, 132, 140–141, 144–146, 154, 157, 161, 164, 167, 177–183, 185, 188, 193–196, 198, 201–206, 209–215, 217, 219, 222, 224–227, 231–233, 235–239, 241–245, 249–253, 258, 260, 263–269, 278–282, 285–292, 295–308, 311–313, 316–328, 331, 334–336, 339–353, 356–361, 364, 366, 369, 384, 386–387, 390–391, 393, 395, 397–399, 402, 411, 418–420, 423–424, 427, 429–433, 436, 439–442, 445–448, 451–453, 469, 471, 474–475, 496–501, 505, 507–508, 516–521
beam/demand
demand.py	338	43	87%	51, 66, 123, 209, 243, 463–464, 483–485, 490–491, 493, 495–497, 499, 543, 621, 625, 662, 667, 674, 695–696, 707, 713–729
receiving.py	125	17	86%	79, 131, 173, 214, 244, 249–260
sqlite.py	59	1	98%	40
utils.py	59	6	89%	56, 67, 73–75, 83
beam/doctype/beam_mobile_route
beam_mobile_route.py	3	0	100%
beam/doctype/beam_settings
beam_settings.py	34	17	50%	35–37, 40–41, 43, 50, 55–58, 66–68, 72–74
beam/doctype/handling_unit
__init__.py	9	3	66%	12–14
handling_unit.py	17	1	94%	27
beam/doctype/warehouse_types
warehouse_types.py	3	0	100%
beam/overrides
network_printer_settings.py	40	32	20%	14–18, 24–34, 42–46, 49, 52–55, 57–62
sales_order.py	10	6	40%	11–16
stock_entry.py	91	16	82%	115–116, 121–128, 134–135, 151, 183, 186–187
work_order.py	10	2	80%	14, 16
beam/report/demand_map
demand_map.py	35	35	0%	4–5, 7–8, 11–12, 15–16, 103–111, 127, 129–143, 146–147
beam/report/handling_unit_traceability
handling_unit_traceability.py	44	44	0%	4–6, 9–11, 30–32, 34–35, 37–38, 41–42, 45–46, 48–49, 51–52, 54–55, 57, 63–65, 67–69, 71, 74–77, 79–81, 83–86, 89–90
beam/scan
__init__.py	191	27	85%	24, 34, 161–162, 172, 174–175, 179, 183–184, 187, 193, 204–205, 209, 230, 234, 263, 265, 284–285, 291, 294, 297, 406, 414, 421
config.py	28	28	0%	4, 6, 9–17, 19–21, 23–26, 28–30, 32–35, 38–39, 41
user_login.py	31	31	0%	4–6, 8, 11–13, 17–19, 21–22, 24–25, 27–29, 31–33, 35–38, 40–45, 47
www/beam
__init__.py	14	14	0%	4–7, 10–19
index.py	7	7	0%	4, 6, 9–13
TOTAL	1674	704	57%

[lauty95]

@agritheory

All the tests from this issue are covered: #304

I also added this features besides its tests:

• If you try to leave the Ship page, a confirmation alert is shown
• Scanning a HU populates the items correctly

Demo

Screen.Recording.2026-02-27.at.11.51.51.AM.mov

[github-actions]

📝 Draft Changelog Entry

Changelog Entry

This update adds comprehensive testing for the mobile shipping workflow and includes several fixes to ensure accurate delivery note processing.

The delivery note interface now supports submit and cancel functionality, allowing delivery notes to be properly finalized or reverted. Handling units can be added or associated with delivery notes during the shipping process, and delivery notes themselves can be added or associated as needed.

The scanning system has been updated to prevent over-delivery by limiting scan quantities to match order quantities. An issue where the order ID was not being correctly identified has been resolved. Validation logic has been corrected to ensure proper error handling during the shipping workflow.

The mobile shipping interface has been enhanced to warn users when attempting to ship with unsaved changes, and the system now supports shipping without requiring items to be scanned. Partial shipments can be completed, and submitted shipments can be cancelled when necessary.

This changelog entry was automatically generated by the Changelog Generator Action.

[lauty95]

@agritheory

Conflicts fixed. Ready for review