test: Work Order Material Transfer against Job Card

- Tests for multiple items transfer and excess transfer against JC
- Remove unused __future__ imports
- Changed Copyright year
- Sider: (js) Added space before if
diff --git a/erpnext/manufacturing/doctype/job_card/job_card.js b/erpnext/manufacturing/doctype/job_card/job_card.js
index 9b8f81b..35be388 100644
--- a/erpnext/manufacturing/doctype/job_card/job_card.js
+++ b/erpnext/manufacturing/doctype/job_card/job_card.js
@@ -26,8 +26,9 @@
 	refresh: function(frm) {
 		frappe.flags.pause_job = 0;
 		frappe.flags.resume_job = 0;
+		let has_items = frm.doc.items && frm.doc.items.length;
 
-		if(!frm.doc.__islocal && frm.doc.items && frm.doc.items.length && frm.doc.docstatus < 2) {
+		if (!frm.doc.__islocal && has_items && frm.doc.docstatus < 2) {
 			let to_request = frm.doc.for_quantity > frm.doc.transferred_qty;
 			let excess_transfer_allowed = frm.doc.__onload.job_card_excess_transfer;
 
diff --git a/erpnext/manufacturing/doctype/job_card/job_card.py b/erpnext/manufacturing/doctype/job_card/job_card.py
index 1906bf6..3209546 100644
--- a/erpnext/manufacturing/doctype/job_card/job_card.py
+++ b/erpnext/manufacturing/doctype/job_card/job_card.py
@@ -1,9 +1,6 @@
 # -*- coding: utf-8 -*-
-# Copyright (c) 2018, Frappe Technologies Pvt. Ltd. and contributors
+# Copyright (c) 2021, Frappe Technologies Pvt. Ltd. and contributors
 # For license information, please see license.txt
-
-from __future__ import unicode_literals
-
 import datetime
 import json
 
diff --git a/erpnext/manufacturing/doctype/job_card/test_job_card.py b/erpnext/manufacturing/doctype/job_card/test_job_card.py
index 80295bb..57336e1 100644
--- a/erpnext/manufacturing/doctype/job_card/test_job_card.py
+++ b/erpnext/manufacturing/doctype/job_card/test_job_card.py
@@ -1,22 +1,38 @@
 # -*- coding: utf-8 -*-
-# Copyright (c) 2018, Frappe Technologies Pvt. Ltd. and Contributors
+# Copyright (c) 2021, Frappe Technologies Pvt. Ltd. and Contributors
 # See license.txt
-from __future__ import unicode_literals
-
 import unittest
 
 import frappe
 from frappe.utils import random_string
 
-from erpnext.manufacturing.doctype.job_card.job_card import OperationMismatchError, OverlapError
+from erpnext.manufacturing.doctype.job_card.job_card import (
+	make_stock_entry as make_stock_entry_from_jc,
+	OperationMismatchError,
+	OverlapError
+)
 from erpnext.manufacturing.doctype.work_order.test_work_order import make_wo_order_test_record
 from erpnext.manufacturing.doctype.workstation.test_workstation import make_workstation
+from erpnext.stock.doctype.stock_entry.stock_entry_utils import make_stock_entry
 
 
 class TestJobCard(unittest.TestCase):
 
 	def setUp(self):
-		self.work_order = make_wo_order_test_record(item="_Test FG Item 2", qty=2)
+		transfer_material_against, source_warehouse = None, None
+		tests_that_transfer_against_jc = ("test_job_card_multiple_materials_transfer",
+			"test_job_card_excess_material_transfer")
+
+		if self._testMethodName in tests_that_transfer_against_jc:
+			transfer_material_against = "Job Card"
+			source_warehouse = "Stores - _TC"
+
+		self.work_order = make_wo_order_test_record(
+			item="_Test FG Item 2",
+			qty=2,
+			transfer_material_against=transfer_material_against,
+			source_warehouse=source_warehouse
+		)
 
 	def tearDown(self):
 		frappe.db.rollback()
@@ -96,3 +112,84 @@
 			"employee": employee,
 		})
 		self.assertRaises(OverlapError, jc2.save)
+
+	def test_job_card_multiple_materials_transfer(self):
+		"Test transferring RMs separately against Job Card with multiple RMs."
+		make_stock_entry(
+			item_code="_Test Item",
+			target="Stores - _TC",
+			qty=10,
+			basic_rate=100
+		)
+		make_stock_entry(
+			item_code="_Test Item Home Desktop Manufactured",
+			target="Stores - _TC",
+			qty=6,
+			basic_rate=100
+		)
+
+		job_card_name = frappe.db.get_value("Job Card", {'work_order': self.work_order.name})
+		job_card = frappe.get_doc("Job Card", job_card_name)
+
+		transfer_entry_1 = make_stock_entry_from_jc(job_card_name)
+		del transfer_entry_1.items[1] # transfer only 1 of 2 RMs
+		transfer_entry_1.insert()
+		transfer_entry_1.submit()
+
+		job_card.reload()
+
+		self.assertEqual(transfer_entry_1.fg_completed_qty, 2)
+		self.assertEqual(job_card.transferred_qty, 2)
+
+		# transfer second RM
+		transfer_entry_2 = make_stock_entry_from_jc(job_card_name)
+		del transfer_entry_2.items[0]
+		transfer_entry_2.insert()
+		transfer_entry_2.submit()
+
+		# 'For Quantity' here will be 0 since
+		# transfer was made for 2 fg qty in first transfer Stock Entry
+		self.assertEqual(transfer_entry_2.fg_completed_qty, 0)
+
+	def test_job_card_excess_material_transfer(self):
+		"Test transferring more than required RM against Job Card."
+		make_stock_entry(item_code="_Test Item", target="Stores - _TC",
+			qty=25, basic_rate=100)
+		make_stock_entry(item_code="_Test Item Home Desktop Manufactured",
+			target="Stores - _TC", qty=15, basic_rate=100)
+
+		job_card_name = frappe.db.get_value("Job Card", {'work_order': self.work_order.name})
+		job_card = frappe.get_doc("Job Card", job_card_name)
+
+		# fully transfer both RMs
+		transfer_entry_1 = make_stock_entry_from_jc(job_card_name)
+		transfer_entry_1.insert()
+		transfer_entry_1.submit()
+
+		# transfer extra qty of both RM due to previously damaged RM
+		transfer_entry_2 = make_stock_entry_from_jc(job_card_name)
+		# deliberately change 'For Quantity'
+		transfer_entry_2.fg_completed_qty = 1
+		transfer_entry_2.items[0].qty = 5
+		transfer_entry_2.items[1].qty = 3
+		transfer_entry_2.insert()
+		transfer_entry_2.submit()
+
+		job_card.reload()
+		self.assertGreater(job_card.transferred_qty, job_card.for_quantity)
+
+		# Check if 'For Quantity' is negative
+		# as 'transferred_qty' > Qty to Manufacture
+		transfer_entry_3 = make_stock_entry_from_jc(job_card_name)
+		self.assertEqual(transfer_entry_3.fg_completed_qty, 0)
+
+		job_card.append("time_logs", {
+			"from_time": "2021-01-01 00:01:00",
+			"to_time": "2021-01-01 06:00:00",
+			"completed_qty": 2
+		})
+		job_card.save()
+		job_card.submit()
+
+		# JC is Completed with excess transfer
+		self.assertEqual(job_card.status, "Completed")
\ No newline at end of file
diff --git a/erpnext/manufacturing/doctype/work_order/test_work_order.py b/erpnext/manufacturing/doctype/work_order/test_work_order.py
index bb43149..d87b5ec 100644
--- a/erpnext/manufacturing/doctype/work_order/test_work_order.py
+++ b/erpnext/manufacturing/doctype/work_order/test_work_order.py
@@ -1,9 +1,5 @@
-# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
+# Copyright (c) 2021, Frappe Technologies Pvt. Ltd. and Contributors
 # License: GNU General Public License v3. See license.txt
-
-
-from __future__ import unicode_literals
-
 import unittest
 
 import frappe
@@ -814,6 +810,7 @@
 	wo_order.get_items_and_operations_from_bom()
 	wo_order.sales_order = args.sales_order or None
 	wo_order.planned_start_date = args.planned_start_date or now()
+	wo_order.transfer_material_against = args.transfer_material_against or "Work Order"
 
 	if args.source_warehouse:
 		for item in wo_order.get("required_items"):