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Purchase Request For Quotation Scenario
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Imports::

    >>> import datetime
    >>> from decimal import Decimal
    >>> from proteus import Model, Wizard
    >>> from trytond.tests.tools import activate_modules
    >>> from trytond.modules.company.tests.tools import (create_company,
    ...     get_company)
    >>> from trytond.modules.account.tests.tools import (create_chart,
    ...     get_accounts)
    >>> today = datetime.date.today()

Activate purchase_request_quotation Module::

    >>> config = activate_modules('purchase_request_quotation')

Create company::

    >>> _ = create_company()
    >>> company = get_company()

Create chart of accounts::

    >>> _ = create_chart(company)
    >>> accounts = get_accounts(company)
    >>> expense = accounts['expense']

Create purchase user which is also in requisition approval group::

    >>> User = Model.get('res.user')
    >>> Group = Model.get('res.group')
    >>> Party = Model.get('party.party')
    >>> Employee = Model.get('company.employee')
    >>> purchase_user = User()
    >>> purchase_user.name = 'Purchase'
    >>> purchase_user.login = 'purchase'
    >>> purchase_user.main_company = company
    >>> purchase_group, = Group.find([('name', '=', 'Purchase')])
    >>> purchase_user.groups.append(purchase_group)
    >>> purchase_request_group, = Group.find(
    ...     [('name', '=', 'Purchase Request')])
    >>> purchase_user.groups.append(purchase_request_group)
    >>> requisition_group, = Group.find([
    ...         ('name', '=', 'Purchase Requisition')])
    >>> purchase_user.groups.append(requisition_group)
    >>> requisition_approval_group, = Group.find([
    ...         ('name', '=', 'Purchase Requisition Approval')])
    >>> purchase_user.groups.append(requisition_approval_group)
    >>> employee_party = Party(name='Employee')
    >>> employee_party.save()
    >>> employee = Employee(party=employee_party)
    >>> employee.save()
    >>> purchase_user.employees.append(employee)
    >>> purchase_user.employee = employee
    >>> purchase_user.save()


Create supplier::

    >>> supplier = Party(name='Supplier')
    >>> supplier.save()
    >>> supplier2 = Party(name='Supplier2')
    >>> supplier2.save()
    >>> supplier3 = Party(name='Supplier3')
    >>> supplier3.save()

Create 2 products::

    >>> ProductUom = Model.get('product.uom')
    >>> ProductTemplate = Model.get('product.template')
    >>> Product = Model.get('product.product')
    >>> unit, = ProductUom.find([('name', '=', 'Unit')])
    >>> product = Product()
    >>> template = ProductTemplate()
    >>> template.name = 'Product'
    >>> template.default_uom = unit
    >>> template.type = 'goods'
    >>> template.list_price = Decimal('20')
    >>> template.cost_price = Decimal('8')
    >>> template.purchasable = True
    >>> template.account_expense = expense
    >>> template.save()
    >>> product.template = template
    >>> product.save()
    >>> product2 = Product()
    >>> template = ProductTemplate()
    >>> template.name = 'Product2'
    >>> template.default_uom = unit
    >>> template.type = 'goods'
    >>> template.list_price = Decimal('10')
    >>> template.cost_price = Decimal('4')
    >>> template.purchasable = True
    >>> template.account_expense = expense
    >>> template.save()
    >>> product2.template = template
    >>> product2.save()

Create 2 purchase requisition with differents products and
different suppliers::

    >>> config.user = purchase_user.id
    >>> Location = Model.get('stock.location')
    >>> PurchaseRequisition = Model.get('purchase.requisition')
    >>> requisition = PurchaseRequisition()
    >>> requisition.description = 'Description'
    >>> requisition.employee = purchase_user.employee
    >>> requisition.supply_date = today
    >>> requisition_line = requisition.lines.new()
    >>> requisition_line.product = product
    >>> requisition_line.description = 'Description'
    >>> requisition_line.quantity = 2.0
    >>> requisition_line.supplier = supplier
    >>> requisition_line.price = 10.0
    >>> warehouse_loc, = Location.find([('code', '=', 'WH')])
    >>> requisition.warehouse = warehouse_loc
    >>> requisition.click('wait')
    >>> requisition.click('approve')
    >>> requisition.state
    u'processing'
    >>> requisition = PurchaseRequisition()
    >>> requisition.description = 'Description'
    >>> requisition.employee = purchase_user.employee
    >>> requisition.supply_date = today
    >>> requisition_line = requisition.lines.new()
    >>> requisition_line.product = product2
    >>> requisition_line.description = 'Description2'
    >>> requisition_line.quantity = 3.0
    >>> requisition_line.supplier = supplier2
    >>> requisition_line.price = 7.0
    >>> warehouse_loc, = Location.find([('code', '=', 'WH')])
    >>> requisition.warehouse = warehouse_loc
    >>> requisition.click('wait')
    >>> requisition.click('approve')
    >>> requisition.state
    u'processing'

Create Purchase Request Quotation from 2 Requests and
add another supplier::

    >>> PurchaseRequest = Model.get('purchase.request')
    >>> pr = PurchaseRequest.find([('state', '=', 'draft')])
    >>> len(pr)
    2
    >>> pr[0].state
    'draft'
    >>> create_quotation = Wizard('purchase.request.create_quotation', pr)
    >>> create_quotation.form.suppliers.append(supplier3)
    >>> create_quotation.execute('process')
    >>> pr[0].state
    'quotation'

Check Quotations (2 Requests with 3 Suppliers = 6 Quotations)::

    >>> Quotation = Model.get('purchase.request.quotation')
    >>> q = Quotation.find([('group_state', '=', 'draft')])
    >>> len(q)
    6

Send Quotations::

    >>> QuotationGroup = Model.get('purchase.request.quotation.group')
    >>> qg = QuotationGroup.find([('state', '=', 'draft')])
    >>> len(qg)
    3
    >>> for quotation_group in qg:
    ...     quotation_group.click('send')
    >>> qg = QuotationGroup.find([('state', '=', 'sent')])
    >>> len(qg)
    3

Only supplier and supplier3 will answer to quotation::

    >>> qg, = QuotationGroup.find([('state', '=', 'sent'),
    ...     ('supplier', '=', supplier.id)])
    >>> qg.request_quotations[0].unit_price = Decimal('11')
    >>> qg.request_quotations[1].unit_price = Decimal('6')
    >>> qg.click('answer')
    >>> qg, = QuotationGroup.find([('state', '=', 'sent'),
    ...     ('supplier', '=', supplier3.id)])
    >>> qg.request_quotations[0].unit_price = Decimal('8')
    >>> qg.request_quotations[1].unit_price = Decimal('9')
    >>> qg.click('answer')

For each Purchase Request we will order Quotations (the first quotation
with state 'answered' will be used to create the Purchase Order)::

    >>> for request in pr:
    ...     q_ids = [q.id for q in request.quotations]
    ...     quotations = Quotation.find([('id', 'in', q_ids)],
    ...         order=[('unit_price', 'ASC')])
    ...     i = 1
    ...     for q in quotations:
    ...         q.sequence = i
    ...         q.save()
    ...         i = i + 1
    >>> PurchaseRequest = Model.get('purchase.request')
    >>> prequest = PurchaseRequest.find([('state', '=', 'draft')])
    >>> for r in prequest:
    ...     r.id, r.state,r.quotations

Create Purchase Order from Purchase Request::

    >>> create_purchase = Wizard('purchase.request.create_purchase', prequest)
    >>> prequest[0].state
    'purchased'