test: e2e test for LIFO valuation
diff --git a/erpnext/stock/tests/test_valuation.py b/erpnext/stock/tests/test_valuation.py
index 623040e..648d440 100644
--- a/erpnext/stock/tests/test_valuation.py
+++ b/erpnext/stock/tests/test_valuation.py
@@ -1,9 +1,14 @@
+import json
import unittest
+import frappe
from hypothesis import given
from hypothesis import strategies as st
+from erpnext.stock.doctype.item.test_item import make_item
+from erpnext.stock.doctype.stock_entry.stock_entry_utils import make_stock_entry
from erpnext.stock.valuation import FIFOValuation, LIFOValuation, _round_off_if_near_zero
+from erpnext.tests.utils import ERPNextTestCase
qty_gen = st.floats(min_value=-1e6, max_value=1e6)
value_gen = st.floats(min_value=1, max_value=1e6)
@@ -284,3 +289,64 @@
total_value -= sum(q * r for q, r in consumed)
self.assertTotalQty(total_qty)
self.assertTotalValue(total_value)
+
+class TestLIFOValuationSLE(ERPNextTestCase):
+ ITEM_CODE = "_Test LIFO item"
+ WAREHOUSE = "_Test Warehouse - _TC"
+
+ @classmethod
+ def setUpClass(cls) -> None:
+ super().setUpClass()
+ make_item(cls.ITEM_CODE, {"valuation_method": "LIFO"})
+
+ def _make_stock_entry(self, qty, rate=None):
+ kwargs = {
+ "item_code": self.ITEM_CODE,
+ "from_warehouse" if qty < 0 else "to_warehouse": self.WAREHOUSE,
+ "rate": rate,
+ "qty": abs(qty),
+ }
+ return make_stock_entry(**kwargs)
+
+ def assertStockQueue(self, se, expected_queue):
+ sle_name = frappe.db.get_value("Stock Ledger Entry", {"voucher_no": se.name, "is_cancelled": 0, "voucher_type": "Stock Entry"})
+ sle = frappe.get_doc("Stock Ledger Entry", sle_name)
+
+ stock_queue = json.loads(sle.stock_queue)
+
+ total_qty, total_value = LIFOValuation(stock_queue).get_total_stock_and_value()
+ self.assertEqual(sle.qty_after_transaction, total_qty)
+ self.assertEqual(sle.stock_value, total_value)
+
+ if total_qty > 0:
+ self.assertEqual(stock_queue, expected_queue)
+
+
+ def test_lifo_values(self):
+
+ in1 = self._make_stock_entry(1, 1)
+ self.assertStockQueue(in1, [[1, 1]])
+
+ in2 = self._make_stock_entry(2, 2)
+ self.assertStockQueue(in2, [[1, 1], [2, 2]])
+
+ out1 = self._make_stock_entry(-1)
+ self.assertStockQueue(out1, [[1, 1], [1, 2]])
+
+ in3 = self._make_stock_entry(3, 3)
+ self.assertStockQueue(in3, [[1, 1], [1, 2], [3, 3]])
+
+ out2 = self._make_stock_entry(-4)
+ self.assertStockQueue(out2, [[1, 1]])
+
+ in4 = self._make_stock_entry(4, 4)
+ self.assertStockQueue(in4, [[1, 1], [4,4]])
+
+ out3 = self._make_stock_entry(-5)
+ self.assertStockQueue(out3, [])
+
+ in5 = self._make_stock_entry(5, 5)
+ self.assertStockQueue(in5, [[5, 5]])
+
+ out5 = self._make_stock_entry(-5)
+ self.assertStockQueue(out5, [])