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modules/stock/tests/scenario_stock_recompute_average_cost_price.rst

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+==================================
+Stock Recompute Average Cost Price
+==================================
+
+Imports::
+
+    >>> import datetime as dt
+    >>> from decimal import Decimal
+
+    >>> from proteus import Model, Wizard
+    >>> from trytond.modules.company.tests.tools import create_company, get_company
+    >>> from trytond.tests.tools import activate_modules, assertEqual, assertFalse
+
+    >>> today = dt.date.today()
+
+Activate modules::
+
+    >>> config = activate_modules('stock', create_company)
+
+Get company::
+
+    >>> company = get_company()
+
+Create product::
+
+    >>> ProductUom = Model.get('product.uom')
+    >>> ProductTemplate = Model.get('product.template')
+    >>> unit, = ProductUom.find([('name', '=', 'Unit')])
+
+    >>> template = ProductTemplate()
+    >>> template.name = 'Product'
+    >>> template.default_uom = unit
+    >>> template.type = 'goods'
+    >>> template.list_price = Decimal('300')
+    >>> template.cost_price_method = 'average'
+    >>> product, = template.products
+    >>> product.cost_price = Decimal('80')
+    >>> template.save()
+    >>> product, = template.products
+
+Get stock locations::
+
+    >>> Location = Model.get('stock.location')
+    >>> supplier_loc, = Location.find([('code', '=', 'SUP')])
+    >>> storage_loc, = Location.find([('code', '=', 'STO')])
+    >>> customer_loc, = Location.find([('code', '=', 'CUS')])
+
+Create some moves::
+
+    >>> StockMove = Model.get('stock.move')
+    >>> StockMove(
+    ...     product=product,
+    ...     quantity=1,
+    ...     from_location=supplier_loc,
+    ...     to_location=storage_loc,
+    ...     unit_price=Decimal('100'),
+    ...     currency=company.currency,
+    ...     effective_date=today - dt.timedelta(days=2)).click('do')
+    >>> StockMove(
+    ...     product=product,
+    ...     quantity=2,
+    ...     from_location=storage_loc,
+    ...     to_location=customer_loc,
+    ...     unit_price=Decimal('300'),
+    ...     currency=company.currency,
+    ...     effective_date=today - dt.timedelta(days=1)).click('do')
+    >>> StockMove(
+    ...     product=product,
+    ...     quantity=2,
+    ...     from_location=supplier_loc,
+    ...     to_location=storage_loc,
+    ...     unit_price=Decimal('120'),
+    ...     currency=company.currency,
+    ...     effective_date=today - dt.timedelta(days=1)).click('do')
+    >>> StockMove(
+    ...     product=product,
+    ...     quantity=3,
+    ...     from_location=supplier_loc,
+    ...     to_location=storage_loc,
+    ...     unit_price=Decimal('100'),
+    ...     currency=company.currency,
+    ...     effective_date=today).click('do')
+
+    >>> [m.cost_price for m in StockMove.find([])]
+    [Decimal('105.0000'), Decimal('120.0000'), Decimal('100.0000'), Decimal('100.0000')]
+
+    >>> product.reload()
+    >>> product.cost_price
+    Decimal('105.0000')
+
+Recompute cost price::
+
+    >>> recompute = Wizard('product.recompute_cost_price', [product])
+    >>> recompute.execute('recompute')
+
+    >>> [m.cost_price for m in StockMove.find([])]
+    [Decimal('105.0000'), Decimal('120.0000'), Decimal('120.0000'), Decimal('100.0000')]
+
+    >>> product.reload()
+    >>> product.cost_price
+    Decimal('105.0000')
+
+Recompute cost price from a date::
+
+    >>> recompute = Wizard('product.recompute_cost_price', [product])
+    >>> recompute.form.from_ = today - dt.timedelta(days=1)
+    >>> recompute.execute('recompute')
+
+    >>> [m.cost_price for m in StockMove.find([])]
+    [Decimal('105.0000'), Decimal('120.0000'), Decimal('120.0000'), Decimal('100.0000')]
+
+    >>> product.reload()
+    >>> product.cost_price
+    Decimal('105.0000')
+
+Update unit price of a move::
+
+    >>> move, = StockMove.find([
+    ...         ('from_location', '=', supplier_loc.id),
+    ...         ('effective_date', '=', today - dt.timedelta(days=1)),
+    ...         ])
+    >>> bool(move.unit_price_updated)
+    False
+    >>> move.unit_price = Decimal('130')
+    >>> move.save()
+    >>> bool(move.unit_price_updated)
+    True
+
+    >>> recompute = Wizard('product.recompute_cost_price', [product])
+    >>> recompute.form.from_ = move.effective_date + dt.timedelta(days=1)
+    >>> recompute.execute('recompute')
+    >>> move.reload()
+    >>> bool(move.unit_price_updated)
+    True
+
+    >>> recompute = Wizard('product.recompute_cost_price', [product])
+    >>> assertEqual(recompute.form.from_, move.effective_date)
+    >>> recompute.execute('recompute')
+    >>> move.reload()
+    >>> assertFalse(move.unit_price_updated)
+    >>> [m.cost_price for m in StockMove.find([])]
+    [Decimal('107.5000'), Decimal('130.0000'), Decimal('130.0000'), Decimal('100.0000')]
+
+Launch cron task::
+
+    >>> move.unit_price = Decimal('120')
+    >>> move.save()
+
+    >>> Cron = Model.get('ir.cron')
+    >>> Company = Model.get('company.company')
+    >>> cron_recompute, = Cron.find([
+    ...     ('method', '=', 'product.product|recompute_cost_price_from_moves'),
+    ...     ])
+    >>> cron_recompute.companies.append(Company(company.id))
+    >>> cron_recompute.click('run_once')
+
+    >>> move.reload()
+    >>> bool(move.unit_price_updated)
+    False
+    >>> [m.cost_price for m in StockMove.find([])]
+    [Decimal('105.0000'), Decimal('120.0000'), Decimal('120.0000'), Decimal('100.0000')]