Field converter on a binary field use data uri

tests/test_field.py

 ##############################################################################
 #
 #    Converter Odoo module
-#    Copyright © 2021 XCG Consulting <https://xcg-consulting.fr>
+#    Copyright © 2021, 2025 XCG Consulting <https://xcg-consulting.fr>
 #
 #    This program is free software: you can redistribute it and/or modify
 #    it under the terms of the GNU Affero General Public License as
@@ -110,3 +110,84 @@
                 )
             ),
         )
+
+    def test_binary_data_uri(self):
+        converter = Field("avatar_1920")
+        partner = self.env.ref("base.partner_admin")
+        old_image = partner.avatar_1920
+        value = converter.odoo_to_message(partner)
+        # admin partner avatar is stored with application/octet-stream
+        self.assertTrue(value.startswith(b"data:application/octet-stream;base64,"))
+        # white 1920x1920 image
+        data_uri = """data:image/png;base64,
+iVBORw0KGgoAAAANSUhEUgAAB4AAAAeAAQAAAAAH2XdrAAAABGdBTUEAALGPC/xhBQAAACBjSFJN
+AAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAAmJLR0QAAd2KE6QAAAAHdElN
+RQfpAhURBCXSFMwjAAAIE0lEQVR42u3PAQ0AMAjAMPyb/mWQjE7BOu9Ysz0ADAwMDAwMfCfgesD1
+gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOu
+B1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5w
+PeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA
+6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64H
+XA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA9
+4HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDr
+AdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdc
+D7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3g
+esD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB
+1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wP
+uB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6
+wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHX
+A64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4
+HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA
+9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcD
+rgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7ge
+cD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1
+gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOu
+B1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5w
+PeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA
+6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64H
+XA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA9
+4HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDr
+AdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdc
+D7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3g
+esD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB
+1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wP
+uB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6
+wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHX
+A64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4
+HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA
+9YDrAdcDrgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcD
+rgdcD7gecD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7ge
+cD3gesD1gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1
+gOsB1wOuB1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrAdcDrgdcD7gecD3gesD1gOsB1wOu
+B1wPuB5wPeB6wPWA6wHXA64HXA+4HnA94HrA9YDrfdjxYRCgcj/RAAAAJXRFWHRkYXRlOmNyZWF0
+ZQAyMDI1LTAyLTIxVDE3OjA0OjM3KzAwOjAw60rorAAAACV0RVh0ZGF0ZTptb2RpZnkAMjAyNS0w
+Mi0yMVQxNzowNDozNyswMDowMJoXUBAAAAAASUVORK5CYII="""
+        values = converter.message_to_odoo(self.env, "update", data_uri, partner, True)
+        partner.write(values)
+        self.assertNotEqual(old_image, partner.avatar_1920)
+        value = converter.odoo_to_message(partner)
+        # not an attachment, mimetype is lost
+        self.assertTrue(value.startswith(b"data:application/octet-stream;base64,"))
+        converter = Field("image_1920")
+        main_company = self.env.ref("base.main_company").partner_id
+        values = converter.message_to_odoo(self.env, "update", data_uri, partner, True)
+        main_company.write(values)
+        value = converter.odoo_to_message(main_company)
+        self.assertTrue(value.startswith(b"data:image/png;base64,"))
+        # test on an attachment field
+        data_uri = (
+            "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElE"
+            "QVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=="
+        )
+        menu = self.env["ir.ui.menu"].search([], limit=1)
+        old_image = menu.web_icon_data
+        converter = Field("web_icon_data")
+        values = converter.message_to_odoo(self.env, "update", data_uri, menu, True)
+        menu.write(values)
+        self.assertEqual(old_image, menu.web_icon_data)
+        converter.post_hook(menu, data_uri)
+        # TODO fix that, post_hook is not working
+        self.assertNotEqual(old_image, menu.web_icon_data)
+        value = converter.odoo_to_message(menu)
+        self.assertTrue(value.startswith(b"data:image/png;base64,"))
+        # TODO test with a image/svg and a non admin user
+        # TODO add more tests like text/plain