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modules/account_invoice/tests/scenario_invoice_alternate_currency.rst

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+===================================
+Invoice Scenario Alternate Currency
+===================================
+
+Imports::
+
+    >>> import datetime as dt
+    >>> from decimal import Decimal
+
+    >>> from proteus import Model
+    >>> from trytond.modules.account.tests.tools import (
+    ...     create_chart, create_fiscalyear, create_tax, get_accounts)
+    >>> from trytond.modules.account_invoice.exceptions import InvoiceTaxesWarning
+    >>> from trytond.modules.account_invoice.tests.tools import (
+    ...     set_fiscalyear_invoice_sequences)
+    >>> from trytond.modules.company.tests.tools import create_company
+    >>> from trytond.modules.currency.tests.tools import get_currency
+    >>> from trytond.tests.tools import activate_modules
+
+    >>> today = dt.date.today()
+    >>> tomorrow = today + dt.timedelta(days=1)
+
+Activate modules::
+
+    >>> config = activate_modules('account_invoice', create_company, create_chart)
+
+    >>> Warning = Model.get('res.user.warning')
+
+Get currencies::
+
+    >>> currency = get_currency('USD')
+    >>> eur = get_currency('EUR')
+
+Set alternate currency rates::
+
+    >>> rate = eur.rates.new()
+    >>> rate.date = today
+    >>> rate.rate = eur.rates[0].rate
+    >>> rate = eur.rates.new()
+    >>> rate.date = tomorrow
+    >>> rate.rate = eur.rates[0].rate + Decimal('0.5')
+    >>> eur.save()
+
+Create fiscal years::
+
+    >>> fiscalyear = set_fiscalyear_invoice_sequences(
+    ...     create_fiscalyear(today=(today, tomorrow)))
+    >>> fiscalyear.click('create_period')
+
+Get accounts::
+
+    >>> accounts = get_accounts()
+    >>> revenue = accounts['revenue']
+    >>> expense = accounts['expense']
+    >>> account_tax = accounts['tax']
+    >>> account_cash = accounts['cash']
+
+Create tax::
+
+    >>> tax = create_tax(Decimal('.10'))
+    >>> tax.save()
+
+Create payment method::
+
+    >>> Journal = Model.get('account.journal')
+    >>> PaymentMethod = Model.get('account.invoice.payment.method')
+    >>> journal_cash, = Journal.find([('type', '=', 'cash')])
+    >>> payment_method = PaymentMethod()
+    >>> payment_method.name = 'Cash'
+    >>> payment_method.journal = journal_cash
+    >>> payment_method.credit_account = account_cash
+    >>> payment_method.debit_account = account_cash
+    >>> payment_method.save()
+
+Create writeoff method::
+
+    >>> WriteOff = Model.get('account.move.reconcile.write_off')
+    >>> journal_writeoff = Journal(name='Write-Off', type='write-off')
+    >>> journal_writeoff.save()
+    >>> writeoff = WriteOff()
+    >>> writeoff.name = 'Rate loss'
+    >>> writeoff.journal = journal_writeoff
+    >>> writeoff.credit_account = expense
+    >>> writeoff.debit_account = expense
+    >>> writeoff.save()
+
+Create party::
+
+    >>> Party = Model.get('party.party')
+    >>> party = Party(name='Party')
+    >>> party.save()
+
+Create account category::
+
+    >>> 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.customer_taxes.append(tax)
+    >>> account_category.save()
+
+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 = 'service'
+    >>> template.list_price = Decimal('40')
+    >>> template.account_category = account_category
+    >>> template.save()
+    >>> product, = template.products
+
+Create invoice with alternate currency::
+
+    >>> Invoice = Model.get('account.invoice')
+    >>> invoice = Invoice()
+    >>> invoice.party = party
+    >>> invoice.currency = eur
+    >>> line = invoice.lines.new()
+    >>> line.product = product
+    >>> line.quantity = 5
+    >>> line.unit_price = Decimal('80')
+    >>> line.amount
+    Decimal('400.00')
+    >>> line = invoice.lines.new()
+    >>> line.account = revenue
+    >>> line.description = 'Test'
+    >>> line.quantity = 1
+    >>> line.unit_price = Decimal(20)
+    >>> line.amount
+    Decimal('20.00')
+    >>> invoice.untaxed_amount
+    Decimal('420.00')
+    >>> invoice.tax_amount
+    Decimal('40.00')
+    >>> invoice.total_amount
+    Decimal('460.00')
+    >>> invoice.invoice_date = today
+    >>> invoice.click('post')
+    >>> invoice.state
+    'posted'
+    >>> invoice.untaxed_amount
+    Decimal('420.00')
+    >>> invoice.tax_amount
+    Decimal('40.00')
+    >>> invoice.total_amount
+    Decimal('460.00')
+
+Create negative tax::
+
+    >>> negative_tax = create_tax(Decimal('-.10'))
+    >>> negative_tax.save()
+
+Create invoice with alternate currency and negative taxes::
+
+    >>> invoice = Invoice()
+    >>> invoice.party = party
+    >>> invoice.currency = eur
+    >>> line = invoice.lines.new()
+    >>> line.product = product
+    >>> line.quantity = 5
+    >>> line.unit_price = Decimal('80')
+    >>> _ = line.taxes.pop(0)
+    >>> line.taxes.append(negative_tax)
+    >>> line.amount
+    Decimal('400.00')
+    >>> invoice.untaxed_amount
+    Decimal('400.00')
+    >>> invoice.tax_amount
+    Decimal('-40.00')
+    >>> invoice.total_amount
+    Decimal('360.00')
+    >>> try:
+    ...     invoice.click('post')
+    ... except InvoiceTaxesWarning as warning:
+    ...     Warning(user=config.user, name=warning.name).save()
+    ...     raise
+    Traceback (most recent call last):
+        ...
+    InvoiceTaxesWarning: ...
+    >>> invoice.click('post')
+    >>> invoice.state
+    'posted'
+    >>> invoice.untaxed_amount
+    Decimal('400.00')
+    >>> invoice.tax_amount
+    Decimal('-40.00')
+    >>> invoice.total_amount
+    Decimal('360.00')
+