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  In order to check the Account_voucher module with multi-currency in OpenERP,
  I create an invoice in CAD and make its Payment in CHF based on the currency rating on that particular date.
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  I create currency CAD in OpenERP for January of 1.338800 Rate
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  !record {model: res.currency.rate, id: jan_cad}:
    currency_id: base.CAD
    name: !eval "'%s-01-01' %(datetime.now().year)"
    rate: 1.338800
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  I create currency CAD in OpenERP for March of 2.000000 Rate
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  !record {model: res.currency.rate, id: mar_cad}:
    currency_id: base.CAD
    name: !eval "'%s-03-01' %(datetime.now().year)"
    rate: 2.000000
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  I create currency CHF in OpenERP for January of 1.308600 Rate
-
  !record {model: res.currency.rate, id: jan_chf}:
    currency_id: base.CHF
    name: !eval "'%s-01-01' %(datetime.now().year)"
    rate: 1.308600
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  I create currency CHF in OpenERP for March of 1.250000 Rate
-
  !record {model: res.currency.rate, id: mar_chf}:
    currency_id: base.CHF
    name: !eval "'%s-03-01' %(datetime.now().year)"
    rate: 1.250000
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  I create a bank journal with CHF as currency
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  !record {model: account.journal, id: bank_journal_CHF}:
    name: Bank Journal(CHF)
    code: BCHF
    type: bank
    analytic_journal_id: account.sit
    sequence_id: account.sequence_bank_journal
    default_debit_account_id: account.cash
    default_credit_account_id: account.cash
    currency: base.CHF
    company_id: base.main_company
    view_id: account.account_journal_bank_view
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  I set up some accounts for currency rate expense/income in my company
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  !record {model: res.company, id: base.main_company}:
    property_expense_currency_exchange: account.o_expense
    property_income_currency_exchange: account.o_income
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  I create a new partner John Armani.
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  !record {model: res.partner, id: res_partner_john0}:
    address:
      - city: paris
        country_id: base.fr
        name: John
        street: 1 rue Rockfeller
        type: invoice
        zip: '75016'
    name: Mr.John Armani
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  I create the first invoice on 1st January for 200 CAD
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  !record {model: account.invoice, id: account_first_invoice_jan_cad}:
    account_id: account.a_recv
    address_contact_id: base.res_partner_address_3000
    address_invoice_id: base.res_partner_address_3000
    company_id: base.main_company
    currency_id: base.CAD
    date_invoice: !eval "'%s-01-01' %(datetime.now().year)"
    period_id: account.period_1
    invoice_line:
      - account_id: account.a_sale
        name: '[PC1] Basic PC'
        price_unit: 200.0
        quantity: 1.0
        product_id: product.product_product_pc1
        uos_id: product.product_uom_unit
    journal_id: account.sales_journal
    partner_id: res_partner_john0
    reference_type: none
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  I Validate invoice by clicking on Validate button
-
  !workflow {model: account.invoice, action: invoice_open, ref: account_first_invoice_jan_cad}
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  I check that first invoice move is correct for debtor account (debit - credit == 149.39)
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  !python {model: account.invoice}: |
    invoice_id = self.browse(cr, uid, ref("account_first_invoice_jan_cad"))
    assert invoice_id.move_id, "Move not created for open invoice"
    move_line_obj = self.pool.get('account.move.line')
    move_lines = move_line_obj.search(cr, uid, [('move_id', '=', invoice_id.move_id.id), ('account_id', '=', invoice_id.account_id.id)])
    move_line = move_line_obj.browse(cr, uid, move_lines[0])
    assert (move_line.debit - move_line.credit == 149.39), "Invoice move is incorrect for debtors account"
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  I create the first voucher of payment
  <create with values 300 CHF, journal CHF, and fill amounts 200 for the invoice of 200 CAD>
-
  !python {model: account.voucher}: |
    import netsvc, time
    vals = {}
    res = self.onchange_partner_id(cr, uid, [], ref("res_partner_john0"), ref('bank_journal_CHF'), 300.00, 2, ttype='receipt', date=False)
    vals = {
        'account_id': ref('account.cash'),
        'amount': 300.00,
        'company_id': ref('base.main_company'),
        'currency_id': ref('base.CHF'),
        'journal_id': ref('bank_journal_CHF'),
        'partner_id': ref('res_partner_john0'),
        'period_id': ref('account.period_3'),
        'type': 'receipt',
        'date': time.strftime("%Y-03-01"),
        'payment_option': 'with_writeoff',
        'writeoff_acc_id': ref('account.a_expense'),
        'comment': 'Write Off',
        'name': 'First payment',
    }
    if not res['value']['line_cr_ids']:
      res['value']['line_cr_ids'] = [{'type': 'cr', 'account_id': ref('account.a_recv'),}]
    for item in res['value']['line_cr_ids']:
        if item['amount_unreconciled'] == 200.00:
            item['amount'] = 200.00
    vals['line_cr_ids'] = [(0,0,i) for i in res['value']['line_cr_ids']]
    id = self.create(cr, uid, vals)
    voucher_id = self.browse(cr, uid, id)
    assert (voucher_id.state=='draft'), "Voucher is not in draft state"
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  I check that writeoff amount computed is 175.0
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  !python {model: account.voucher}: |
    voucher = self.search(cr, uid, [('name', '=', 'First payment'), ('partner_id', '=', ref('res_partner_john0'))])
    voucher_id = self.browse(cr, uid, voucher[0])
    assert (voucher_id.writeoff_amount == 175.0), "Writeoff amount is not 175.0"
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  I check that currency rate difference is 49.39
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  !python {model: account.voucher}: |
    voucher = self.search(cr, uid, [('name', '=', 'First payment'), ('partner_id', '=', ref('res_partner_john0'))])
    voucher_id = self.browse(cr, uid, voucher[0])
    curr_diff = float(str(voucher_id.currency_rate_difference))
    assert (curr_diff == 49.39), "Currency rate difference is not 49.39"
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  I confirm the voucher
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  !python {model: account.voucher}: |
    import netsvc
    voucher = self.search(cr, uid, [('name', '=', 'First payment'), ('partner_id', '=', ref('res_partner_john0'))])
    wf_service = netsvc.LocalService("workflow")
    wf_service.trg_validate(uid, 'account.voucher', voucher[0], 'proforma_voucher', cr)
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  I check that the move of my voucher is valid
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  !python {model: account.voucher}: |
    voucher = self.search(cr, uid, [('name', '=', 'First payment'), ('partner_id', '=', ref('res_partner_john0'))])
    voucher_id = self.browse(cr, uid, voucher[0])
    move_line_obj = self.pool.get('account.move.line')
    move_lines = move_line_obj.search(cr, uid, [('move_id', '=', voucher_id.move_id.id)])
    for move_line in move_line_obj.browse(cr, uid, move_lines):
        assert move_line.state == 'valid', "Voucher move is not valid"
    assert voucher_id.state == 'posted', "Voucher state is not posted"
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  I check that my debtor account is correct
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  I check that the debtor account has 1 new line with -200 as amount_currency columns and 149.39 of credit and currency is CAD($).
-
  I check that my currency rate difference is correct. 49.39 in debit with no amount_currency
-
  I check that my writeoff is correct. 140 credit and -175 amount_currency
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  !python {model: account.voucher}: |
    voucher = self.search(cr, uid, [('name', '=', 'First payment'), ('partner_id', '=', ref('res_partner_john0'))])
    voucher_id = self.browse(cr, uid, voucher[0])
    move_line_obj = self.pool.get('account.move.line')
    move_lines = move_line_obj.search(cr, uid, [('move_id', '=', voucher_id.move_id.id)])
    for move_line in move_line_obj.browse(cr, uid, move_lines):
        if move_line.amount_currency == -200:
            assert move_line.credit == 149.39, "Debtor account has wrong entry."
        elif move_line.debit == 49.39:
            assert move_line.amount_currency == 0.00, "Incorrect Currency Difference."
        elif move_line.credit == 140.00:
            assert move_line.amount_currency == -175.00, "Writeoff amount is wrong."
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  I check the residual amount of Invoice1, should be 0 in residual currency and 0 in amount_residual and paid
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  !python {model: account.invoice}: |
    invoice_id = self.browse(cr, uid, ref("account_first_invoice_jan_cad"))
    move_line_obj = self.pool.get('account.move.line')
    move_lines = move_line_obj.search(cr, uid, [('move_id', '=', invoice_id.move_id.id), ('invoice', '=', invoice_id.id), ('account_id', '=', invoice_id.account_id.id)])
    move_line = move_line_obj.browse(cr, uid, move_lines[0])
    assert (move_line.amount_residual_currency == 0.0 and move_line.amount_residual == 0.0 and invoice_id.state == 'paid') , "Residual amount is not correct for first Invoice"
