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82 lines
3.2 KiB
Ruby
82 lines
3.2 KiB
Ruby
# frozen_string_literal: true
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# Provides methods to help testing invoices
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module InvoiceHelper
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# Force the invoice generation worker to run NOW and check the resulting file generated.
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# Delete the file afterwards.
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# @param invoice {Invoice}
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def assert_invoice_pdf(invoice)
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assert_not_nil invoice, 'Invoice was not created'
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generate_pdf(invoice)
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assert File.exist?(invoice.file), 'Invoice PDF was not generated'
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# now we check the file content
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reader = PDF::Reader.new(invoice.file)
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assert_equal 1, reader.page_count # single page invoice
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page = reader.pages.first
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lines = page.text.scan(/^.+/)
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check_amounts(invoice, lines)
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check_user(invoice, lines)
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File.delete(invoice.file)
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end
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private
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def generate_pdf(invoice)
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invoice_worker = InvoiceWorker.new
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invoice_worker.perform(invoice.id, invoice&.user&.subscription&.expired_at)
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end
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# Parse a line of text read from a PDF file and return the price included inside
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# Line of text should be of form 'Label $10.00'
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# @returns {float}
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def parse_amount_from_invoice_line(line)
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line[line.rindex(' ') + 1..].tr(I18n.t('number.currency.format.unit'), '').to_f
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end
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# check VAT and total excluding taxes
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def check_amounts(invoice, lines)
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ht_amount = invoice.total
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lines.each do |line|
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# check that the numbers printed into the PDF file match the total stored in DB
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if line.include? I18n.t('invoices.total_amount')
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assert_equal invoice.total / 100.0, parse_amount_from_invoice_line(line), 'Invoice total rendered in the PDF file does not match'
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end
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# check that the VAT was correctly applied if it was configured
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ht_amount = parse_amount_from_invoice_line(line) if line.include? I18n.t('invoices.including_total_excluding_taxes')
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end
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vat_service = VatHistoryService.new
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invoice.invoice_items.each do |item|
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vat_rate = vat_service.invoice_item_vat(item)
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if vat_rate.positive?
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computed_ht = sprintf('%.2f', (item.amount_after_coupon / ((vat_rate / 100.00) + 1)) / 100.00).to_f
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assert_equal computed_ht, item.net_amount / 100.00, 'Total excluding taxes rendered in the PDF file is not computed correctly'
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else
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assert_equal item.amount_after_coupon, item.net_amount, 'VAT information was rendered in the PDF file despite that VAT was disabled'
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end
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end
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end
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# check the recipient & the address
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def check_user(invoice, lines)
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if invoice.invoicing_profile.organization
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assert lines.first.include?(invoice.invoicing_profile.organization.name), 'On the PDF invoice, organization name is invalid'
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assert invoice.invoicing_profile.organization.address.address.include?(lines[2].split(' ').last.strip),
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'On the PDF invoice, organization address is invalid'
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else
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assert lines.first.include?(invoice.invoicing_profile.full_name), 'On the PDF invoice, customer name is invalid'
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assert invoice.invoicing_profile.address.address.include?(lines[2].split(' ').last.strip),
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'On the PDF invoice, customer address is invalid'
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end
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# check the email
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assert lines[1].include?(invoice.invoicing_profile.email), 'On the PDF invoice, email is invalid'
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end
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end
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