|
| 1 | +import io |
| 2 | + |
| 3 | +from odoo.tests import TransactionCase |
| 4 | +from odoo.tools.pdf import PdfFileReader, PdfFileWriter |
| 5 | + |
| 6 | + |
| 7 | +class TestPdfBackend(TransactionCase): |
| 8 | + """Guard the PDF backend selected by odoo.tools.pdf. |
| 9 | +
|
| 10 | + Printing a report for multiple records splits the combined document in |
| 11 | + ir.actions.report._render_qweb_pdf_prepare_streams using the legacy |
| 12 | + PyPDF2 1.x API (numPages, getPage, addPage). If the image ships legacy |
| 13 | + PyPDF2 3.x, odoo.tools.pdf selects it over pypdf and that API raises |
| 14 | + DeprecationError, so multi-record printing crashes while single-record |
| 15 | + printing still works (OP#1168). |
| 16 | + """ |
| 17 | + |
| 18 | + def _make_two_page_pdf(self): |
| 19 | + from reportlab.pdfgen import canvas |
| 20 | + |
| 21 | + buffer = io.BytesIO() |
| 22 | + pdf_canvas = canvas.Canvas(buffer) |
| 23 | + pdf_canvas.drawString(100, 750, "page 1") |
| 24 | + pdf_canvas.showPage() |
| 25 | + pdf_canvas.drawString(100, 750, "page 2") |
| 26 | + pdf_canvas.showPage() |
| 27 | + pdf_canvas.save() |
| 28 | + buffer.seek(0) |
| 29 | + return buffer |
| 30 | + |
| 31 | + def test_01_multi_record_split_legacy_api(self): |
| 32 | + # Mirrors the multi-record path of _render_qweb_pdf_prepare_streams |
| 33 | + reader = PdfFileReader(self._make_two_page_pdf()) |
| 34 | + self.assertEqual(reader.numPages, 2) |
| 35 | + for page_index in range(reader.numPages): |
| 36 | + writer = PdfFileWriter() |
| 37 | + writer.addPage(reader.getPage(page_index)) |
| 38 | + stream = io.BytesIO() |
| 39 | + writer.write(stream) |
| 40 | + self.assertTrue(stream.getvalue().startswith(b"%PDF")) |
0 commit comments