122 lines
3.3 KiB
Python
122 lines
3.3 KiB
Python
import unittest
|
|
|
|
from erpnext.stock.valuation import FifoValuation, _round_off_if_near_zero
|
|
|
|
|
|
def rate_generator():
|
|
return 0.0
|
|
|
|
class TestFifoValuation(unittest.TestCase):
|
|
|
|
def setUp(self):
|
|
self.queue = FifoValuation([])
|
|
|
|
def tearDown(self):
|
|
qty, value = self.queue.get_total_stock_and_value()
|
|
self.assertTotalQty(qty)
|
|
self.assertTotalValue(value)
|
|
|
|
def assertTotalQty(self, qty):
|
|
self.assertEqual(sum(q for q, _ in self.queue), qty, msg=f"queue: {self.queue}")
|
|
|
|
def assertTotalValue(self, value):
|
|
self.assertEqual(sum(q * r for q, r in self.queue), value, msg=f"queue: {self.queue}")
|
|
|
|
def test_simple_addition(self):
|
|
self.queue.add_stock(1, 10)
|
|
self.assertTotalQty(1)
|
|
|
|
def test_simple_removal(self):
|
|
self.queue.add_stock(1, 10)
|
|
self.queue.remove_stock(1, 0, rate_generator)
|
|
self.assertTotalQty(0)
|
|
|
|
def test_merge_new_stock(self):
|
|
self.queue.add_stock(1, 10)
|
|
self.queue.add_stock(1, 10)
|
|
self.assertEqual(self.queue, [[2, 10]])
|
|
|
|
def test_adding_negative_stock_keeps_rate(self):
|
|
self.queue = FifoValuation([[-5.0, 100]])
|
|
self.queue.add_stock(1, 10)
|
|
self.assertEqual(self.queue, [[-4, 100]])
|
|
|
|
def test_adding_negative_stock_updates_rate(self):
|
|
self.queue = FifoValuation([[-5.0, 100]])
|
|
self.queue.add_stock(6, 10)
|
|
self.assertEqual(self.queue, [[1, 10]])
|
|
|
|
|
|
def test_negative_stock(self):
|
|
self.queue.remove_stock(1, 5, rate_generator)
|
|
self.assertEqual(self.queue, [[-1, 5]])
|
|
|
|
# XXX
|
|
self.queue.remove_stock(1, 10, rate_generator)
|
|
self.assertTotalQty(-2)
|
|
|
|
self.queue.add_stock(2, 10)
|
|
self.assertTotalQty(0)
|
|
self.assertTotalValue(0)
|
|
|
|
def test_removing_specified_rate(self):
|
|
self.queue.add_stock(1, 10)
|
|
self.queue.add_stock(1, 20)
|
|
|
|
self.queue.remove_stock(1, 20, rate_generator)
|
|
self.assertEqual(self.queue, [[1, 10]])
|
|
|
|
|
|
def test_remove_multiple_bins(self):
|
|
self.queue.add_stock(1, 10)
|
|
self.queue.add_stock(2, 20)
|
|
self.queue.add_stock(1, 20)
|
|
self.queue.add_stock(5, 20)
|
|
|
|
self.queue.remove_stock(4, 0, rate_generator)
|
|
self.assertEqual(self.queue, [[5, 20]])
|
|
|
|
|
|
def test_remove_multiple_bins_with_rate(self):
|
|
self.queue.add_stock(1, 10)
|
|
self.queue.add_stock(2, 20)
|
|
self.queue.add_stock(1, 20)
|
|
self.queue.add_stock(5, 20)
|
|
|
|
self.queue.remove_stock(3, 20, rate_generator)
|
|
self.assertEqual(self.queue, [[1, 10], [5, 20]])
|
|
|
|
def test_collapsing_of_queue(self):
|
|
self.queue.add_stock(1, 1)
|
|
self.queue.add_stock(1, 2)
|
|
self.queue.add_stock(1, 3)
|
|
self.queue.add_stock(1, 4)
|
|
|
|
self.assertTotalValue(10)
|
|
|
|
self.queue.remove_stock(3, 1, rate_generator)
|
|
# XXX
|
|
self.assertEqual(self.queue, [[1, 7]])
|
|
|
|
def test_rounding_off(self):
|
|
self.queue.add_stock(1.0, 1.0)
|
|
self.queue.remove_stock(1.0 - 1e-9, 0.0, rate_generator)
|
|
self.assertTotalQty(0)
|
|
|
|
def test_rounding_off_near_zero(self):
|
|
self.assertEqual(_round_off_if_near_zero(0), 0)
|
|
self.assertEqual(_round_off_if_near_zero(1), 1)
|
|
self.assertEqual(_round_off_if_near_zero(-1), -1)
|
|
self.assertEqual(_round_off_if_near_zero(-1e-8), 0)
|
|
self.assertEqual(_round_off_if_near_zero(1e-8), 0)
|
|
|
|
def test_totals(self):
|
|
self.queue.add_stock(1, 10)
|
|
self.queue.add_stock(2, 13)
|
|
self.queue.add_stock(1, 17)
|
|
self.queue.remove_stock(1, 0, rate_generator)
|
|
self.queue.remove_stock(1, 0, rate_generator)
|
|
self.queue.remove_stock(1, 0, rate_generator)
|
|
self.queue.add_stock(5, 17)
|
|
self.queue.add_stock(8, 11)
|