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Sale Line Delete Log Scenario
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Imports::

  >>> 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, create_fiscalyear, create_tax, get_accounts)
  >>> from trytond.modules.account_invoice.tests.tools import (
  ...     create_payment_term, set_fiscalyear_invoice_sequences)
  >>> import datetime as dt
  >>> today = dt.date.today()
  >>> from trytond.tests.tools import set_user


Activate modules::

    >>> config = activate_modules('sale_line_delete_log')

Initial data::

  >>> User = Model.get('res.user')
  >>> Party = Model.get('party.party')
  >>> Employee = Model.get('company.employee')
  >>> Journal = Model.get('account.journal')
  >>> PaymentMethod = Model.get('account.invoice.payment.method')
  >>> Party = Model.get('party.party')
  >>> ProductUom = Model.get('product.uom')
  >>> ProductTemplate = Model.get('product.template')
  >>> Sale = Model.get('sale.sale')
  >>> SaleLine = Model.get('sale.line')

Create company::

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

Set employee::

  >>> employee_party = Party(name="Employee")
  >>> employee_party.save()
  >>> employee = Employee(party=employee_party)
  >>> employee.save()
  >>> user = User(config.user)
  >>> user.employees.append(employee)
  >>> user.employee = employee
  >>> user.save()
  >>> set_user(user.id)

Create fiscal year::

  >>> fiscalyear = set_fiscalyear_invoice_sequences(create_fiscalyear(company, today))
  >>> fiscalyear.click('create_period')

Create chart of accounts::

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

  >>> cash_journal, = Journal.find([('type', '=', 'cash')])
  >>> cash_journal.save()
  >>> payment_method = PaymentMethod()
  >>> payment_method.name = 'Cash'
  >>> payment_method.journal = cash_journal
  >>> payment_method.credit_account = cash
  >>> payment_method.debit_account = cash
  >>> payment_method.save()

Create tax::

  >>> tax = create_tax(Decimal('.10'))
  >>> tax.save()

Create parties::

  >>> supplier = Party(name='Supplier')
  >>> supplier.save()
  >>> customer = Party(name='Customer')
  >>> customer.save()

Create account categories::

  >>> ProductCategory = Model.get('product.category')
  >>> account_category = ProductCategory(name="Account Category")
  >>> account_category.accounting = True
  >>> account_category.account_expense = expense
  >>> account_category.account_revenue = revenue
  >>> account_category.save()

  >>> account_category_tax, = account_category.duplicate()
  >>> account_category_tax.customer_taxes.append(tax)
  >>> account_category_tax.save()

Create product::

  >>> unit, = ProductUom.find([('name', '=', 'Unit')])

  >>> template = ProductTemplate()
  >>> template.name = 'product'
  >>> template.default_uom = unit
  >>> template.type = 'goods'
  >>> template.salable = True
  >>> template.list_price = Decimal('10')
  >>> template.account_category = account_category_tax
  >>> template.save()
  >>> product, = template.products

  >>> template = ProductTemplate()
  >>> template.name = 'service'
  >>> template.default_uom = unit
  >>> template.type = 'service'
  >>> template.salable = True
  >>> template.list_price = Decimal('30')
  >>> template.account_category = account_category
  >>> template.save()
  >>> service, = template.products

Create payment term::

  >>> payment_term = create_payment_term()
  >>> payment_term.save()

Create an Inventory::

  >>> Inventory = Model.get('stock.inventory')
  >>> Location = Model.get('stock.location')
  >>> storage, = Location.find([
  ...         ('code', '=', 'STO'),
  ...         ])
  >>> inventory = Inventory()
  >>> inventory.location = storage
  >>> inventory_line = inventory.lines.new(product=product)
  >>> inventory_line.quantity = 100.0
  >>> inventory_line.expected_quantity = 0.0
  >>> inventory.click('confirm')
  >>> inventory.state
  'done'

Sale 5 products::

  >>> sale = Sale()
  >>> sale.party = customer
  >>> sale.payment_term = payment_term
  >>> sale.invoice_method = 'order'
  >>> sale_line = SaleLine()
  >>> sale.lines.append(sale_line)
  >>> sale_line.product = product
  >>> sale_line.quantity = 2.0
  >>> sale_line = SaleLine()
  >>> sale.lines.append(sale_line)
  >>> sale_line.type = 'comment'
  >>> sale_line.description = 'Comment'
  >>> sale_line = SaleLine()
  >>> sale.lines.append(sale_line)
  >>> sale_line.product = product
  >>> sale_line.quantity = 3.0
  >>> sale.click('quote')
  >>> sale.untaxed_amount, sale.tax_amount, sale.total_amount
  (Decimal('50.00'), Decimal('5.00'), Decimal('55.00'))
  >>> sale.click('confirm')
  >>> sale.untaxed_amount, sale.tax_amount, sale.total_amount
  (Decimal('50.00'), Decimal('5.00'), Decimal('55.00'))