esabora: fix crash on empty document field (#70193)

passerelle/apps/esabora/models.py

@@ -174,7 +174,7 @@ def populate_document_field(field, value):
     # let's compute their size in bytes based on the base64 payload (without = padding)
     # cf https://stackoverflow.com/a/45401395/2844093
     for f in value:
-        if not value:
+        if not f:
             continue
         size = (len(f['content']) * 3) / 4 - f['content'].count('=', -2)
         field['fieldValue'].append(

tests/test_esabora.py

@@ -101,6 +101,8 @@ def test_do_treatment(app, connector):
             'content_type': 'application/pdf',
             'content': base64.b64encode(file_content2).decode(),
         },
+        # empty field, will be skipped
+        'PJ_Documents/2': "",
         # ensure we handle single documents as well
         'PJ_Documents_Autre': {
             'filename': 'test3.pdf',