erpnext/tests/test_subcontracting.py

import copy
import unittest
from collections import defaultdict

import frappe
from frappe.utils import cint

from erpnext.buying.doctype.purchase_order.purchase_order import (
	get_materials_from_supplier,
	make_purchase_invoice,
	make_purchase_receipt,
	make_rm_stock_entry,
)
from erpnext.buying.doctype.purchase_order.test_purchase_order import create_purchase_order
from erpnext.manufacturing.doctype.production_plan.test_production_plan import make_bom
from erpnext.stock.doctype.item.test_item import make_item
from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
from erpnext.stock.doctype.stock_entry.test_stock_entry import make_stock_entry


class TestSubcontracting(unittest.TestCase):
	def setUp(self):
		make_subcontract_items()
		make_raw_materials()
		make_bom_for_subcontracted_items()

	def test_po_with_bom(self):
		'''
			- Set backflush based on BOM
			- Create subcontracted PO for the item Subcontracted Item SA1 and add same item two times.
			- Transfer the components from Stores to Supplier warehouse with batch no and serial nos.
			- Create purchase receipt against the PO and check serial nos and batch no.
		'''

		set_backflush_based_on('BOM')
		item_code = 'Subcontracted Item SA1'
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 5, 'rate': 100},
			{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 6, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 1', 'qty': 5},
			{'item_code': 'Subcontracted SRM Item 2', 'qty': 5},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 5},
			{'item_code': 'Subcontracted SRM Item 1', 'qty': 6},
			{'item_code': 'Subcontracted SRM Item 2', 'qty': 6},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 6}
		]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name if d.get('qty') == 5 else po.items[1].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			transferred_detais = itemwise_details.get(key)

			for field in ['qty', 'serial_no', 'batch_no']:
				if value.get(field):
					transfer, consumed = (transferred_detais.get(field), value.get(field))
					if field == 'serial_no':
						transfer, consumed = (sorted(transfer), sorted(consumed))

					self.assertEqual(transfer, consumed)

	def test_po_with_material_transfer(self):
		'''
			- Set backflush based on Material Transfer
			- Create subcontracted PO for the item Subcontracted Item SA1 and Subcontracted Item SA5.
			- Transfer the components from Stores to Supplier warehouse with batch no and serial nos.
			- Transfer extra item Subcontracted SRM Item 4 for the subcontract item Subcontracted Item SA5.
			- Create partial purchase receipt against the PO and check serial nos and batch no.
		'''

		set_backflush_based_on('Material Transferred for Subcontract')
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': 'Subcontracted Item SA1', 'qty': 5, 'rate': 100},
			{'warehouse': '_Test Warehouse - _TC', 'item_code': 'Subcontracted Item SA5', 'qty': 6, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 1', 'qty': 5, 'main_item_code': 'Subcontracted Item SA1'},
			{'item_code': 'Subcontracted SRM Item 2', 'qty': 5, 'main_item_code': 'Subcontracted Item SA1'},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 5, 'main_item_code': 'Subcontracted Item SA1'},
			{'item_code': 'Subcontracted SRM Item 5', 'qty': 6, 'main_item_code': 'Subcontracted Item SA5'},
			{'item_code': 'Subcontracted SRM Item 4', 'qty': 6, 'main_item_code': 'Subcontracted Item SA5'}
		]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name if d.get('qty') == 5 else po.items[1].name

		make_stock_transfer_entry(po_no = po.name,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.remove(pr1.items[1])
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			transferred_detais = itemwise_details.get(key)

			for field in ['qty', 'serial_no', 'batch_no']:
				if value.get(field):
					self.assertEqual(value.get(field), transferred_detais.get(field))

		pr2 = make_purchase_receipt(po.name)
		pr2.submit()

		for key, value in get_supplied_items(pr2).items():
			transferred_detais = itemwise_details.get(key)

			for field in ['qty', 'serial_no', 'batch_no']:
				if value.get(field):
					self.assertEqual(value.get(field), transferred_detais.get(field))

	def test_subcontract_with_same_components_different_fg(self):
		'''
			- Set backflush based on Material Transfer
			- Create subcontracted PO for the item Subcontracted Item SA2 and Subcontracted Item SA3.
			- Transfer the components from Stores to Supplier warehouse with serial nos.
			- Transfer extra qty of components for the item Subcontracted Item SA2.
			- Create partial purchase receipt against the PO and check serial nos and batch no.
		'''

		set_backflush_based_on('Material Transferred for Subcontract')
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': 'Subcontracted Item SA2', 'qty': 5, 'rate': 100},
			{'warehouse': '_Test Warehouse - _TC', 'item_code': 'Subcontracted Item SA3', 'qty': 6, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 2', 'qty': 6, 'main_item_code': 'Subcontracted Item SA2'},
			{'item_code': 'Subcontracted SRM Item 2', 'qty': 6, 'main_item_code': 'Subcontracted Item SA3'}
		]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name if d.get('qty') == 5 else po.items[1].name

		make_stock_transfer_entry(po_no = po.name,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.items[0].qty = 3
		pr1.remove(pr1.items[1])
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			transferred_detais = itemwise_details.get(key)
			self.assertEqual(value.qty, 4)
			self.assertEqual(sorted(value.serial_no), sorted(transferred_detais.get('serial_no')[0:4]))

		pr2 = make_purchase_receipt(po.name)
		pr2.items[0].qty = 2
		pr2.remove(pr2.items[1])
		pr2.submit()

		for key, value in get_supplied_items(pr2).items():
			transferred_detais = itemwise_details.get(key)

			self.assertEqual(value.qty, 2)
			self.assertEqual(sorted(value.serial_no), sorted(transferred_detais.get('serial_no')[4:6]))

		pr3 = make_purchase_receipt(po.name)
		pr3.submit()
		for key, value in get_supplied_items(pr3).items():
			transferred_detais = itemwise_details.get(key)

			self.assertEqual(value.qty, 6)
			self.assertEqual(sorted(value.serial_no), sorted(transferred_detais.get('serial_no')[6:12]))

	def test_return_non_consumed_materials(self):
		'''
			- Set backflush based on Material Transfer
			- Create subcontracted PO for the item Subcontracted Item SA2.
			- Transfer the components from Stores to Supplier warehouse with serial nos.
			- Transfer extra qty of component for the subcontracted item Subcontracted Item SA2.
			- Create purchase receipt for full qty against the PO and change the qty of raw material.
			- After that return the non consumed material back to the store from supplier's warehouse.
		'''

		set_backflush_based_on('Material Transferred for Subcontract')
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': 'Subcontracted Item SA2', 'qty': 5, 'rate': 100}]
		rm_items = [{'item_code': 'Subcontracted SRM Item 2', 'qty': 6, 'main_item_code': 'Subcontracted Item SA2'}]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.save()
		pr1.supplied_items[0].consumed_qty = 5
		pr1.supplied_items[0].serial_no = '\n'.join(sorted(
			itemwise_details.get('Subcontracted SRM Item 2').get('serial_no')[0:5]
		))
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			transferred_detais = itemwise_details.get(key)
			self.assertEqual(value.qty, 5)
			self.assertEqual(sorted(value.serial_no), sorted(transferred_detais.get('serial_no')[0:5]))

		po.load_from_db()
		self.assertEqual(po.supplied_items[0].consumed_qty, 5)
		doc = get_materials_from_supplier(po.name, [d.name for d in po.supplied_items])
		self.assertEqual(doc.items[0].qty, 1)
		self.assertEqual(doc.items[0].s_warehouse, '_Test Warehouse 1 - _TC')
		self.assertEqual(doc.items[0].t_warehouse, '_Test Warehouse - _TC')
		self.assertEqual(get_serial_nos(doc.items[0].serial_no),
			itemwise_details.get(doc.items[0].item_code)['serial_no'][5:6])

	def test_item_with_batch_based_on_bom(self):
		'''
			- Set backflush based on BOM
			- Create subcontracted PO for the item Subcontracted Item SA4 (has batch no).
			- Transfer the components from Stores to Supplier warehouse with batch no and serial nos.
			- Transfer the components in multiple batches.
			- Create the 3 purchase receipt against the PO and split Subcontracted Items into two batches.
			- Keep the qty as 2 for Subcontracted Item in the purchase receipt.
		'''

		set_backflush_based_on('BOM')
		item_code = 'Subcontracted Item SA4'
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 10, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 1', 'qty': 10},
			{'item_code': 'Subcontracted SRM Item 2', 'qty': 10},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 1}
		]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.items[0].qty = 2
		add_second_row_in_pr(pr1)
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			self.assertEqual(value.qty, 4)

		pr1 = make_purchase_receipt(po.name)
		pr1.items[0].qty = 2
		add_second_row_in_pr(pr1)
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			self.assertEqual(value.qty, 4)

		pr1 = make_purchase_receipt(po.name)
		pr1.items[0].qty = 2
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			self.assertEqual(value.qty, 2)

	def test_item_with_batch_based_on_material_transfer(self):
		'''
			- Set backflush based on Material Transferred for Subcontract
			- Create subcontracted PO for the item Subcontracted Item SA4 (has batch no).
			- Transfer the components from Stores to Supplier warehouse with batch no and serial nos.
			- Transfer the components in multiple batches with extra 2 qty for the batched item.
			- Create the 3 purchase receipt against the PO and split Subcontracted Items into two batches.
			- Keep the qty as 2 for Subcontracted Item in the purchase receipt.
			- In the first purchase receipt the batched raw materials will be consumed 2 extra qty.
		'''

		set_backflush_based_on('Material Transferred for Subcontract')
		item_code = 'Subcontracted Item SA4'
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 10, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 1', 'qty': 10},
			{'item_code': 'Subcontracted SRM Item 2', 'qty': 10},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3}
		]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.items[0].qty = 2
		add_second_row_in_pr(pr1)
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			qty = 4 if key != 'Subcontracted SRM Item 3' else 6
			self.assertEqual(value.qty, qty)

		pr1 = make_purchase_receipt(po.name)
		pr1.items[0].qty = 2
		add_second_row_in_pr(pr1)
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			self.assertEqual(value.qty, 4)

		pr1 = make_purchase_receipt(po.name)
		pr1.items[0].qty = 2
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			self.assertEqual(value.qty, 2)

	def test_partial_transfer_serial_no_components_based_on_material_transfer(self):
		'''
			- Set backflush based on Material Transferred for Subcontract
			- Create subcontracted PO for the item Subcontracted Item SA2.
			- Transfer the partial components from Stores to Supplier warehouse with serial nos.
			- Create partial purchase receipt against the PO and change the qty manually.
			- Transfer the remaining components from Stores to Supplier warehouse with serial nos.
			- Create purchase receipt for remaining qty against the PO and change the qty manually.
		'''

		set_backflush_based_on('Material Transferred for Subcontract')
		item_code = 'Subcontracted Item SA2'
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 10, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 2', 'qty': 5}]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.items[0].qty = 5
		pr1.save()

		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, 3)
			self.assertEqual(sorted(value.serial_no), sorted(details.serial_no[0:3]))

		pr1.load_from_db()
		pr1.supplied_items[0].consumed_qty = 5
		pr1.supplied_items[0].serial_no = '\n'.join(itemwise_details[pr1.supplied_items[0].rm_item_code]['serial_no'])
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, details.qty)
			self.assertEqual(sorted(value.serial_no), sorted(details.serial_no))

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, details.qty)
			self.assertEqual(sorted(value.serial_no), sorted(details.serial_no))

	def test_incorrect_serial_no_components_based_on_material_transfer(self):
		'''
			- Set backflush based on Material Transferred for Subcontract
			- Create subcontracted PO for the item Subcontracted Item SA2.
			- Transfer the serialized componenets to the supplier.
			- Create purchase receipt and change the serial no which is not transferred.
			- System should throw the error and not allowed to save the purchase receipt.
		'''

		set_backflush_based_on('Material Transferred for Subcontract')
		item_code = 'Subcontracted Item SA2'
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 10, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 2', 'qty': 10}]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.save()
		pr1.supplied_items[0].serial_no = 'ABCD'
		self.assertRaises(frappe.ValidationError, pr1.save)
		pr1.delete()

	def test_partial_transfer_batch_based_on_material_transfer(self):
		'''
			- Set backflush based on Material Transferred for Subcontract
			- Create subcontracted PO for the item Subcontracted Item SA6.
			- Transfer the partial components from Stores to Supplier warehouse with batch.
			- Create partial purchase receipt against the PO and change the qty manually.
			- Transfer the remaining components from Stores to Supplier warehouse with batch.
			- Create purchase receipt for remaining qty against the PO and change the qty manually.
		'''

		set_backflush_based_on('Material Transferred for Subcontract')
		item_code = 'Subcontracted Item SA6'
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 10, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 3', 'qty': 5}]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.items[0].qty = 5
		pr1.save()

		transferred_batch_no = ''
		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, 3)
			transferred_batch_no = details.batch_no
			self.assertEqual(value.batch_no, details.batch_no)

		pr1.load_from_db()
		pr1.supplied_items[0].consumed_qty = 5
		pr1.supplied_items[0].batch_no = list(transferred_batch_no.keys())[0]
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, details.qty)
			self.assertEqual(value.batch_no, details.batch_no)

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_receipt(po.name)
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, details.qty)
			self.assertEqual(value.batch_no, details.batch_no)


	def test_item_with_batch_based_on_material_transfer_for_purchase_invoice(self):
		'''
			- Set backflush based on Material Transferred for Subcontract
			- Create subcontracted PO for the item Subcontracted Item SA4 (has batch no).
			- Transfer the components from Stores to Supplier warehouse with batch no and serial nos.
			- Transfer the components in multiple batches with extra 2 qty for the batched item.
			- Create the 3 purchase receipt against the PO and split Subcontracted Items into two batches.
			- Keep the qty as 2 for Subcontracted Item in the purchase receipt.
			- In the first purchase receipt the batched raw materials will be consumed 2 extra qty.
		'''

		set_backflush_based_on('Material Transferred for Subcontract')
		item_code = 'Subcontracted Item SA4'
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 10, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 1', 'qty': 10},
			{'item_code': 'Subcontracted SRM Item 2', 'qty': 10},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3}
		]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_invoice(po.name)
		pr1.update_stock = 1
		pr1.items[0].qty = 2
		pr1.items[0].expense_account = 'Stock Adjustment - _TC'
		add_second_row_in_pr(pr1)
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			qty = 4 if key != 'Subcontracted SRM Item 3' else 6
			self.assertEqual(value.qty, qty)

		pr1 = make_purchase_invoice(po.name)
		pr1.update_stock = 1
		pr1.items[0].expense_account = 'Stock Adjustment - _TC'
		pr1.items[0].qty = 2
		add_second_row_in_pr(pr1)
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			self.assertEqual(value.qty, 4)

		pr1 = make_purchase_invoice(po.name)
		pr1.update_stock = 1
		pr1.items[0].qty = 2
		pr1.items[0].expense_account = 'Stock Adjustment - _TC'
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			self.assertEqual(value.qty, 2)

	def test_partial_transfer_serial_no_components_based_on_material_transfer_for_purchase_invoice(self):
		'''
			- Set backflush based on Material Transferred for Subcontract
			- Create subcontracted PO for the item Subcontracted Item SA2.
			- Transfer the partial components from Stores to Supplier warehouse with serial nos.
			- Create partial purchase receipt against the PO and change the qty manually.
			- Transfer the remaining components from Stores to Supplier warehouse with serial nos.
			- Create purchase receipt for remaining qty against the PO and change the qty manually.
		'''

		set_backflush_based_on('Material Transferred for Subcontract')
		item_code = 'Subcontracted Item SA2'
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 10, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 2', 'qty': 5}]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_invoice(po.name)
		pr1.update_stock = 1
		pr1.items[0].qty = 5
		pr1.items[0].expense_account = 'Stock Adjustment - _TC'
		pr1.save()

		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, 3)
			self.assertEqual(sorted(value.serial_no), sorted(details.serial_no[0:3]))

		pr1.load_from_db()
		pr1.supplied_items[0].consumed_qty = 5
		pr1.supplied_items[0].serial_no = '\n'.join(itemwise_details[pr1.supplied_items[0].rm_item_code]['serial_no'])
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, details.qty)
			self.assertEqual(sorted(value.serial_no), sorted(details.serial_no))

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_invoice(po.name)
		pr1.update_stock = 1
		pr1.items[0].expense_account = 'Stock Adjustment - _TC'
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, details.qty)
			self.assertEqual(sorted(value.serial_no), sorted(details.serial_no))

	def test_partial_transfer_batch_based_on_material_transfer_for_purchase_invoice(self):
		'''
			- Set backflush based on Material Transferred for Subcontract
			- Create subcontracted PO for the item Subcontracted Item SA6.
			- Transfer the partial components from Stores to Supplier warehouse with batch.
			- Create partial purchase receipt against the PO and change the qty manually.
			- Transfer the remaining components from Stores to Supplier warehouse with batch.
			- Create purchase receipt for remaining qty against the PO and change the qty manually.
		'''

		set_backflush_based_on('Material Transferred for Subcontract')
		item_code = 'Subcontracted Item SA6'
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 10, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 3', 'qty': 5}]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_invoice(po.name)
		pr1.update_stock = 1
		pr1.items[0].qty = 5
		pr1.items[0].expense_account = 'Stock Adjustment - _TC'
		pr1.save()

		transferred_batch_no = ''
		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, 3)
			transferred_batch_no = details.batch_no
			self.assertEqual(value.batch_no, details.batch_no)

		pr1.load_from_db()
		pr1.supplied_items[0].consumed_qty = 5
		pr1.supplied_items[0].batch_no = list(transferred_batch_no.keys())[0]
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, details.qty)
			self.assertEqual(value.batch_no, details.batch_no)

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_invoice(po.name)
		pr1.update_stock = 1
		pr1.items[0].expense_account = 'Stock Adjustment - _TC'
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			details = itemwise_details.get(key)
			self.assertEqual(value.qty, details.qty)
			self.assertEqual(value.batch_no, details.batch_no)

	def test_item_with_batch_based_on_bom_for_purchase_invoice(self):
		'''
			- Set backflush based on BOM
			- Create subcontracted PO for the item Subcontracted Item SA4 (has batch no).
			- Transfer the components from Stores to Supplier warehouse with batch no and serial nos.
			- Transfer the components in multiple batches.
			- Create the 3 purchase receipt against the PO and split Subcontracted Items into two batches.
			- Keep the qty as 2 for Subcontracted Item in the purchase receipt.
		'''

		set_backflush_based_on('BOM')
		item_code = 'Subcontracted Item SA4'
		items = [{'warehouse': '_Test Warehouse - _TC', 'item_code': item_code, 'qty': 10, 'rate': 100}]

		rm_items = [{'item_code': 'Subcontracted SRM Item 1', 'qty': 10},
			{'item_code': 'Subcontracted SRM Item 2', 'qty': 10},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 3},
			{'item_code': 'Subcontracted SRM Item 3', 'qty': 1}
		]

		itemwise_details = make_stock_in_entry(rm_items=rm_items)
		po = create_purchase_order(rm_items = items, is_subcontracted="Yes",
			supplier_warehouse="_Test Warehouse 1 - _TC")

		for d in rm_items:
			d['po_detail'] = po.items[0].name

		make_stock_transfer_entry(po_no = po.name, main_item_code=item_code,
			rm_items=rm_items, itemwise_details=copy.deepcopy(itemwise_details))

		pr1 = make_purchase_invoice(po.name)
		pr1.update_stock = 1
		pr1.items[0].qty = 2
		pr1.items[0].expense_account = 'Stock Adjustment - _TC'
		add_second_row_in_pr(pr1)
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			self.assertEqual(value.qty, 4)

		pr1 = make_purchase_invoice(po.name)
		pr1.update_stock = 1
		pr1.items[0].qty = 2
		pr1.items[0].expense_account = 'Stock Adjustment - _TC'
		add_second_row_in_pr(pr1)
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			self.assertEqual(value.qty, 4)

		pr1 = make_purchase_invoice(po.name)
		pr1.update_stock = 1
		pr1.items[0].qty = 2
		pr1.items[0].expense_account = 'Stock Adjustment - _TC'
		pr1.save()
		pr1.submit()

		for key, value in get_supplied_items(pr1).items():
			self.assertEqual(value.qty, 2)

def add_second_row_in_pr(pr):
	item_dict = {}
	for column in ['item_code', 'item_name', 'qty', 'uom', 'warehouse', 'stock_uom',
		'purchase_order', 'purchase_order_item', 'conversion_factor', 'rate', 'expense_account', 'po_detail']:
		item_dict[column] = pr.items[0].get(column)

	pr.append('items', item_dict)
	pr.set_missing_values()

def get_supplied_items(pr_doc):
	supplied_items = {}
	for row in pr_doc.get('supplied_items'):
		if row.rm_item_code not in supplied_items:
			supplied_items.setdefault(row.rm_item_code,
				frappe._dict({'qty': 0, 'serial_no': [], 'batch_no': defaultdict(float)}))

		details = supplied_items[row.rm_item_code]
		update_item_details(row, details)

	return supplied_items

def make_stock_in_entry(**args):
	args = frappe._dict(args)

	items = {}
	for row in args.rm_items:
		row = frappe._dict(row)

		doc = make_stock_entry(target=row.warehouse or '_Test Warehouse - _TC',
			item_code=row.item_code, qty=row.qty or 1, basic_rate=row.rate or 100)

		if row.item_code not in items:
			items.setdefault(row.item_code, frappe._dict({'qty': 0, 'serial_no': [], 'batch_no': defaultdict(float)}))

		child_row = doc.items[0]
		details = items[child_row.item_code]
		update_item_details(child_row, details)

	return items

def update_item_details(child_row, details):
	details.qty += (child_row.get('qty') if child_row.doctype == 'Stock Entry Detail'
		else child_row.get('consumed_qty'))

	if child_row.serial_no:
		details.serial_no.extend(get_serial_nos(child_row.serial_no))

	if child_row.batch_no:
		details.batch_no[child_row.batch_no] += (child_row.get('qty') or child_row.get('consumed_qty'))

def make_stock_transfer_entry(**args):
	args = frappe._dict(args)

	items = []
	for row in args.rm_items:
		row = frappe._dict(row)

		item = {'item_code': row.main_item_code or args.main_item_code, 'rm_item_code': row.item_code,
			'qty': row.qty or 1, 'item_name': row.item_code, 'rate': row.rate or 100,
			'stock_uom': row.stock_uom or 'Nos', 'warehouse': row.warehuose or '_Test Warehouse - _TC'}

		item_details = args.itemwise_details.get(row.item_code)

		if item_details and item_details.serial_no:
			serial_nos = item_details.serial_no[0:cint(row.qty)]
			item['serial_no'] = '\n'.join(serial_nos)
			item_details.serial_no = list(set(item_details.serial_no) - set(serial_nos))

		if item_details and item_details.batch_no:
			for batch_no, batch_qty in item_details.batch_no.items():
				if batch_qty >= row.qty:
					item['batch_no'] = batch_no
					item_details.batch_no[batch_no] -= row.qty
					break

		items.append(item)

	ste_dict = make_rm_stock_entry(args.po_no, items)
	doc = frappe.get_doc(ste_dict)
	doc.insert()
	doc.submit()

	return doc

def make_subcontract_items():
	sub_contracted_items = {'Subcontracted Item SA1': {}, 'Subcontracted Item SA2': {}, 'Subcontracted Item SA3': {},
		'Subcontracted Item SA4': {'has_batch_no': 1, 'create_new_batch': 1, 'batch_number_series': 'SBAT.####'},
		'Subcontracted Item SA5': {}, 'Subcontracted Item SA6': {}}

	for item, properties in sub_contracted_items.items():
		if not frappe.db.exists('Item', item):
			properties.update({'is_stock_item': 1, 'is_sub_contracted_item': 1})
			make_item(item, properties)

def make_raw_materials():
	raw_materials = {'Subcontracted SRM Item 1': {},
		'Subcontracted SRM Item 2': {'has_serial_no': 1, 'serial_no_series': 'SRI.####'},
		'Subcontracted SRM Item 3': {'has_batch_no': 1, 'create_new_batch': 1, 'batch_number_series': 'BAT.####'},
		'Subcontracted SRM Item 4': {'has_serial_no': 1, 'serial_no_series': 'SRII.####'},
		'Subcontracted SRM Item 5': {'has_serial_no': 1, 'serial_no_series': 'SRII.####'}}

	for item, properties in raw_materials.items():
		if not frappe.db.exists('Item', item):
			properties.update({'is_stock_item': 1})
			make_item(item, properties)

def make_bom_for_subcontracted_items():
	boms = {
		'Subcontracted Item SA1': ['Subcontracted SRM Item 1', 'Subcontracted SRM Item 2', 'Subcontracted SRM Item 3'],
		'Subcontracted Item SA2': ['Subcontracted SRM Item 2'],
		'Subcontracted Item SA3': ['Subcontracted SRM Item 2'],
		'Subcontracted Item SA4': ['Subcontracted SRM Item 1', 'Subcontracted SRM Item 2', 'Subcontracted SRM Item 3'],
		'Subcontracted Item SA5': ['Subcontracted SRM Item 5'],
		'Subcontracted Item SA6': ['Subcontracted SRM Item 3']
	}

	for item_code, raw_materials in boms.items():
		if not frappe.db.exists('BOM', {'item': item_code}):
			make_bom(item=item_code, raw_materials=raw_materials, rate=100)

def set_backflush_based_on(based_on):
	frappe.db.set_value('Buying Settings', None,
		'backflush_raw_materials_of_subcontract_based_on', based_on)