===========================
Production Request Scenario
===========================

Imports::

    >>> import datetime as dt
    >>> from decimal import Decimal

    >>> from proteus import Model, Wizard
    >>> from trytond.modules.company.tests.tools import create_company
    >>> from trytond.modules.stock.exceptions import MoveFutureWarning
    >>> from trytond.tests.tools import activate_modules, assertEqual

    >>> today = dt.date.today()

Activate modules::

    >>> config = activate_modules('stock_supply_production', create_company)

    >>> Shipment = Model.get('stock.shipment.internal')
    >>> Warning = Model.get('res.user.warning')

Create product::

    >>> ProductUom = Model.get('product.uom')
    >>> unit, = ProductUom.find([('name', '=', 'Unit')])
    >>> ProductTemplate = Model.get('product.template')

    >>> template = ProductTemplate()
    >>> template.name = 'product'
    >>> template.default_uom = unit
    >>> template.type = 'goods'
    >>> template.producible = True
    >>> template.list_price = Decimal(30)
    >>> template.save()
    >>> product, = template.products

Define a supply period for production::

    >>> ProductionConfiguration = Model.get('production.configuration')
    >>> production_configuration = ProductionConfiguration(1)
    >>> production_configuration.supply_period = dt.timedelta(days=30)
    >>> production_configuration.save()

Get stock locations::

    >>> Location = Model.get('stock.location')
    >>> warehouse_loc, = Location.find([('code', '=', 'WH')])
    >>> storage_loc, = Location.find([('code', '=', 'STO')])
    >>> lost_loc, = Location.find([('type', '=', 'lost_found')])

Create needs for product::

    >>> shipment = Shipment(from_location=storage_loc, to_location=lost_loc)
    >>> move = shipment.moves.new()
    >>> move.product = product
    >>> move.quantity = 1
    >>> move.from_location = storage_loc
    >>> move.to_location = lost_loc
    >>> shipment.click('wait')
    >>> shipment.click('assign_force')
    >>> shipment.click('do')
    >>> shipment.state
    'done'

    >>> shipment, = shipment.duplicate()
    >>> shipment.effective_date = today + dt.timedelta(days=10)
    >>> move, = shipment.moves
    >>> move.effective_date = shipment.effective_date
    >>> shipment.click('wait')
    >>> shipment.click('assign_force')
    >>> try:
    ...     shipment.click('do')
    ... except MoveFutureWarning as warning:
    ...     Warning(user=config.user, name=warning.name).save()
    >>> shipment.click('do')
    >>> shipment.state
    'done'

There is no production request::

    >>> Production = Model.get('production')
    >>> Production.find([])
    []

Create production request::

    >>> create_pr = Wizard('stock.supply')
    >>> create_pr.execute('create_')

There is now a production request::

    >>> productions = Production.find([])
    >>> len(productions)
    2
    >>> {p.state for p in productions}
    {'request'}
    >>> for production in productions:
    ...     assertEqual(production.product, product)
    >>> sum(p.quantity for p in productions)
    2.0
    >>> assertEqual(sorted(p.planned_date for p in productions),
    ...     [today, today + dt.timedelta(days=9)])

Create an order point negative minimal quantity::

    >>> OrderPoint = Model.get('stock.order_point')
    >>> order_point = OrderPoint()
    >>> order_point.type = 'production'
    >>> order_point.product = product
    >>> order_point.location = warehouse_loc
    >>> order_point.min_quantity = -2
    >>> order_point.target_quantity = 10
    >>> order_point.save()

Create production request::

    >>> create_pr = Wizard('stock.supply')
    >>> create_pr.execute('create_')

There is no more production request::

    >>> Production = Model.get('production')
    >>> Production.find([])
    []

Set a minimal quantity on order point::

    >>> order_point.min_quantity = 5
    >>> order_point.save()

Create production request::

    >>> create_pr = Wizard('stock.supply')
    >>> create_pr.execute('create_')

There is now a production request::

    >>> production, = Production.find([])
    >>> production.state
    'request'
    >>> assertEqual(production.product, product)
    >>> production.quantity
    11.0

Using zero as minimal quantity also creates a production request::

    >>> order_point.min_quantity = 0
    >>> order_point.save()
    >>> create_pr = Wizard('stock.supply')
    >>> create_pr.execute('create_')
    >>> production, = Production.find([])
    >>> production.state
    'request'
    >>> assertEqual(production.product, product)
    >>> production.quantity
    11.0
