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2 changes: 2 additions & 0 deletions fitparse/base.py
Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,8 @@ def _append_dev_field_description(self, dev_data_index, field_def_num, type=BASE
)
self._append_dev_data_id(dev_data_index)

if name is None:
name = "unnamed_dev_field_%s" % field_def_num
self.dev_types[dev_data_index]["fields"][field_def_num] = DevField(
dev_data_index=dev_data_index,
def_num=field_def_num,
Expand Down
12 changes: 12 additions & 0 deletions tests/test.py
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@

import csv
import datetime
import io
import os
from struct import pack
import warnings
Expand Down Expand Up @@ -74,6 +75,17 @@ def testfile(filename):


class FitFileTestCase(unittest.TestCase):
def test_tolerant_missing_developer_field_can_be_iterated(self):
definition = b'\x60\x00\x00' + pack('<HB', 0, 1) + bytes([0, 1, 0, 1, 0, 1, 0])
data = bytes([0, 4, 7])
header = pack('<2BHI4s', 14, 16, 152, len(definition + data), b'.FIT') + b'\x00\x00'

with warnings.catch_warnings():
warnings.simplefilter('ignore')
message = FitFile(io.BytesIO(header + definition + data), check_crc=False,
check_developer_data=False).messages[0]
self.assertEqual(2, len(list(message)))


def test_basic_file_with_one_record(self, endian='<'):
f = FitFile(generate_fitfile(endian=endian))
Expand Down