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modules/production/tests/scenario_production_rounding.rst

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+============================
+Production Rounding Scenario
+============================
+
+Imports::
+
+    >>> from decimal import Decimal
+
+    >>> from proteus import Model
+    >>> from trytond.modules.company.tests.tools import create_company
+    >>> from trytond.tests.tools import activate_modules
+
+Activate modules::
+
+    >>> config = activate_modules('production', create_company)
+
+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
+
+Create component::
+
+    >>> template = ProductTemplate()
+    >>> template.name = 'component'
+    >>> template.default_uom = unit
+    >>> template.type = 'goods'
+    >>> template.list_price = Decimal(5)
+    >>> template.save()
+    >>> component, = template.products
+
+Create residual::
+
+    >>> template = ProductTemplate()
+    >>> template.name = 'residual'
+    >>> template.default_uom = unit
+    >>> template.type = 'goods'
+    >>> template.list_price = Decimal(0)
+    >>> template.save()
+    >>> residual, = template.products
+
+Create Bill of Material with rational ratio::
+
+    >>> BOM = Model.get('production.bom')
+    >>> bom = BOM(name='product')
+    >>> input = bom.inputs.new()
+    >>> input.product = component
+    >>> input.quantity = 4
+    >>> output = bom.outputs.new()
+    >>> output.product = product
+    >>> output.quantity = 9
+    >>> output = bom.outputs.new()
+    >>> output.product = residual
+    >>> output.quantity = 8
+    >>> bom.save()
+
+Make a production with rounding::
+
+    >>> Production = Model.get('production')
+    >>> production = Production()
+    >>> production.product = product
+    >>> production.bom = bom
+    >>> production.quantity = 3
+
+Check component is ceiled::
+
+    >>> input, = production.inputs
+    >>> input.quantity
+    2.0
+
+Check product quantity::
+
+    >>> output, = [o for o in production.outputs if o.product == product]
+    >>> output.quantity
+    3.0
+
+Check residual is floored::
+
+    >>> output, = [o for o in production.outputs if o.product == residual]
+    >>> output.quantity
+    2.0