def test_clone_1(self):
original = MarcRecord().add(100, 'Some value')
original.database = 'IBIS'
clone = original.clone()
self.assertEqual(original.database, clone.database)
self.assertEqual(original.mfn, clone.mfn)
self.assertEqual(original.status, clone.status)
self.assertEqual(original.version, clone.version)
self.assertEqual(len(original.fields), len(clone.fields))
def test_is_deleted_1(self):
record = MarcRecord()
self.assertFalse(record.is_deleted())
record.status = LOGICALLY_DELETED
self.assertTrue(record.is_deleted())
record.status = PHYSICALLY_DELETED
self.assertTrue(record.is_deleted())
record.status = LAST
self.assertFalse(record.is_deleted())
def test_write_record_01(self):
sf = SubField
with random_binary_file() as stream:
record = MarcRecord()
record.add(700, sf('a', 'Миронов'), sf('b', 'А. В.'),
sf('g', 'Алексей Владимирович'))
record.add(200, sf('a', f'Работа с ИРБИС64: версия 0.0'),
sf('e', 'руководство пользователя'))
record.add(210, sf('a', 'Иркутск'), SubField('c', 'ИРНИТУ'),
sf('d', '2018'))
record.add(920, 'PAZK')
iso.write_record(stream, record, UTF)
self.assertTrue(stream.name)
def test_write_text_record(self):
sf = SubField
with random_text_file() as stream:
for i in range(10):
record = MarcRecord()
record.add(700, sf('a', 'Миронов'), sf('b', 'А. В.'),
sf('g', 'Алексей Владимирович'))
record.add(200, sf('a', f'Работа с ИРБИС64: версия {i}.0'),
sf('e', 'руководство пользователя'))
record.add(210, sf('a', 'Иркутск'), SubField('c', 'ИРНИТУ'),
sf('d', '2018'))
record.add(920, 'PAZK')
write_text_record(stream, record)
def test_14_write_record(self):
record = MarcRecord()
record.add(200, SubField('a', 'Сгенерированная запись'))
record.add(300, 'Комментарий')
record.add(700, SubField('a', 'Пайтон'), SubField('b', 'М.'),
SubField('g', 'Монти'))
record.add(910, SubField('a', '0'), SubField('b', '1'),
SubField('c', '?'), SubField('d', 'ФКХ'))
print('Write record')
max_mfn = self.connection.write_record(record)
print('New max MFN=', max_mfn, sep='')
print(record)
print()
def test_fma_1(self):
record = MarcRecord().add(100, 'Field 100/1').add(100, 'Field 100/2')
record.add(200, SubField('a', 'SubA/1'), SubField('b', 'SubB/1'))
record.add(200, SubField('a', 'SubA/2'), SubField('b', 'SubB/2'))
self.assertEqual(record.fma(100), ['Field 100/1', 'Field 100/2'])
self.assertEqual(record.fma(200, 'a'), ['SubA/1', 'SubA/2'])
self.assertEqual(record.fma(200, 'b'), ['SubB/1', 'SubB/2'])
self.assertEqual(record.fma(200, 'c'), [])
self.assertEqual(record.fma(300), [])
self.assertEqual(record.fma(300, 'a'), [])
def test_33_format_record(self):
sf = SubField
record = MarcRecord()
record.add(700, sf('a', 'Миронов'), sf('b', 'А. В.'),
sf('g', 'Алексей Владимирович'))
record.add(200, sf('a', f'Работа с ИРБИС64: версия 1.0'),
sf('e', 'руководство пользователя'))
record.add(210, sf('a', 'Иркутск'), SubField('c', 'ИРНИТУ'),
sf('d', '2018'))
record.add(920, 'PAZK')
text = self.connection.format_record('@brief', record)
self.assertEqual(
text, 'Миронов, Алексей Владимирович. Работа с ИРБИС64: '
'версия 1.0 [Текст] : руководство пользователя, 2018')
def test_encode_1(self):
record = MarcRecord()
record.mfn = 123
record.version = 321
record.status = LAST
record.add(100, 'Field100').add(200, SubField('a', 'SubA'), SubField('b', 'SubB'))
self.assertEqual(record.encode(), ['123#32', '0#321', '100#Field100', '200#^aSubA^bSubB'])
def test_init_2(self):
f100 = RecordField(100, 'Field 100')
f200 = RecordField(200, 'Field 200')
record = MarcRecord(f100, f200)
self.assertEqual(len(record.fields), 2)
self.assertEqual(record.fields[0].tag, 100)
self.assertEqual(record.fields[1].tag, 200)
def test_init_1(self):
record = MarcRecord()
self.assertIsNone(record.database)
self.assertEqual(record.mfn, 0)
self.assertEqual(record.version, 0)
self.assertEqual(record.status, 0)
self.assertEqual(len(record.fields), 0)
def read_text_record(stream: TextIO) -> Optional[MarcRecord]:
"""
Чтение записи из файла в текстовом обменном формате ИРБИС.
:param stream: Файл
:return: Запись или None
"""
result = MarcRecord()
while True:
line: str = stream.readline()
if not line:
break
line = line.strip()
if line.startswith(STOP_MARKER):
break
if not line.startswith('#'):
break
parts = line[1:].split(':', 1)
if len(parts) != 2:
break
tag = int(parts[0])
text = parts[1][1:]
field = RecordField(tag)
field.parse(text)
result.fields.append(field)
if not result.fields: # Если в записи нет полей, возвращаем None
return None
return result
def test_iter_1(self):
record = MarcRecord().add(100, 'Field 100') \
.add(200, SubField('a', 'SubA'), SubField('b', 'SubB'))
s = list(record)
self.assertEqual(len(s), 2)
self.assertEqual(s[0].tag, 100)
self.assertEqual(s[1].tag, 200)
def test_iadd_1(self):
record = MarcRecord()
self.assertEqual(len(record.fields), 0)
record += RecordField(100, 'Field 100')
self.assertEqual(len(record.fields), 1)
record += RecordField(200, SubField('a', 'SubA'))
self.assertEqual(len(record.fields), 2)
def test_setitem_1(self):
f100 = RecordField(100, 'Field 100')
f200 = RecordField(200, SubField('a', 'SubA'), SubField('b', 'SubB'))
record = MarcRecord()
record.fields.append(f100)
record.fields.append(f200)
new_value = 'New value'
record[100] = new_value
self.assertEqual(f100.value, new_value)
record[200] = '^aNewA^bNewB'
self.assertEqual(f200.subfields[0].value, 'NewA')
self.assertEqual(f200.subfields[1].value, 'NewB')
record[300] = new_value
self.assertEqual(len(record.fields), 3)
self.assertEqual(record.fields[2].tag, 300)
self.assertEqual(record.fields[2].value, new_value)
record[400] = RecordField().add('a', 'NewA').add('b', 'NewB')
self.assertEqual(len(record.fields), 4)
self.assertEqual(record.fields[3].tag, 400)
self.assertEqual(record.fields[3].subfields[0].value, 'NewA')
self.assertEqual(record.fields[3].subfields[1].value, 'NewB')
record[300] = SubField('a', 'OtherA')
self.assertEqual(len(record.fields), 4)
self.assertEqual(record.fields[2].tag, 300)
self.assertIsNone(record.fields[2].value)
self.assertEqual(record.fields[2].subfields[0].value, 'OtherA')
def test_isub_1(self):
f100 = RecordField(100, 'Field 100')
f200 = RecordField(200, SubField('a', 'SubA'))
record = MarcRecord(f100, f200)
record -= (f100, f200)
self.assertEqual(len(record.fields), 0)
record -= (f100, f200)
self.assertEqual(len(record.fields), 0)
def test_record_parse_1(self):
record = MarcRecord()
text = ['123#32', '0#321', '100#Field 100', '200#^aSubA^bSubB']
record.parse(text)
self.assertEqual(len(record.fields), 2)
self.assertEqual(record.mfn, 123)
self.assertEqual(record.status, LAST)
self.assertEqual(record.version, 321)
self.assertEqual(record.fields[0].tag, 100)
self.assertEqual(record.fields[0].value, 'Field 100')
self.assertEqual(len(record.fields[0].subfields), 0)
self.assertEqual(record.fields[1].tag, 200)
self.assertIsNone(record.fields[1].value)
self.assertEqual(len(record.fields[1].subfields), 2)
self.assertEqual(record.fields[1].subfields[0].code, 'a')
self.assertEqual(record.fields[1].subfields[0].value, 'SubA')
self.assertEqual(record.fields[1].subfields[1].code, 'b')
self.assertEqual(record.fields[1].subfields[1].value, 'SubB')
def test_fm_2(self):
record = MarcRecord().add(100, '', SubField('a', '100A'), SubField('b', '100B'))
record.add(200, '', SubField('b', '200B'), SubField('c', '200C'))
self.assertEqual('100A', record.fm(100, 'a'))
self.assertEqual('100B', record.fm(100, 'b'))
self.assertIsNone(record.fm(100, 'c'))
self.assertIsNone(record.fm(200, 'a'))
self.assertEqual('200B', record.fm(200, 'b'))
self.assertEqual('200C', record.fm(200, 'c'))
def test_setitem_2(self):
f100 = RecordField(100, 'Field 100')
f200 = RecordField(200, SubField('a', 'SubA'), SubField('b', 'SubB'))
record = MarcRecord()
record.fields.append(f100)
record.fields.append(f200)
self.assertEqual(len(record.fields), 2)
record[100] = None
self.assertEqual(len(record.fields), 1)
record[200] = None
self.assertEqual(len(record.fields), 0)
def test_len_1(self):
record = MarcRecord()
self.assertEqual(len(record), 0)
record.add(100, 'Field 100')
self.assertEqual(len(record), 1)
record.add(200, 'Field 200')
self.assertEqual(len(record), 2)
def test_iter_2(self):
record = MarcRecord().add(100, 'Field 100') \
.add(200, SubField('a', 'SubA'), SubField('b', 'SubB'))
i = iter(record)
f = next(i)
self.assertEqual(f.tag, 100)
f = next(i)
self.assertEqual(f.tag, 200)
ok = False
try:
next(i)
except StopIteration:
ok = True
self.assertTrue(ok)
def test_all_1(self):
record = MarcRecord()
record.add(100, 'Field100').add(200, 'Field200') \
.add(300, 'Field300/1').add(300, 'Field300/2')
self.assertEqual(len(record.fields), 4)
self.assertEqual(len(record.all(100)), 1)
self.assertEqual(len(record.all(200)), 1)
self.assertEqual(len(record.all(300)), 2)
self.assertEqual(len(record.all(400)), 0)
def test_write_record_2(self):
sf = SubField
with random_binary_file() as stream:
for i in range(10):
record = MarcRecord()
record.add(700, sf('a', 'Миронов'), sf('b', 'А. В.'),
sf('g', 'Алексей Владимирович'))
record.add(200, sf('a', f'Работа с ИРБИС64: версия {i}.0'),
sf('e', 'руководство пользователя'))
record.add(210, sf('a', 'Иркутск'), SubField('c', 'ИРНИТУ'),
sf('d', '2018'))
record.add(920, 'PAZK')
iso.write_record(stream, record, UTF)
filename = stream.name
with open(filename, 'rb') as fh:
count = 0
while True:
record = iso.read_record(fh, UTF)
if record is None:
break
self.assertEqual(len(record.fields), 4)
count += 1
self.assertEqual(count, 10)
def read_record(stream: BinaryIO, charset=ANSI) -> Optional[MarcRecord]:
"""
Чтение записи из файла в формате ISO 2709.
:param stream: Файл или файлоподобный объект
:param charset: Кодировка
:return: Декодированная запись либо None
"""
# Считываем длину записи
marker = stream.read(5)
if len(marker) != 5:
return None
# а затем и ее остаток
record_length = parse_int(marker)
need = record_length - 5
tail = stream.read(need)
if len(tail) != need:
return None
# Простая проверка, что мы имеем дело с нормальной ISO-записью
record = marker + tail
if record[record_length - 1] != RECORD_DELIMITER:
return None
# Превращаем запись в Unicode
indicator_length = parse_int(record[10:11])
base_address = parse_int(record[12:17])
# Начинаем собственно конверсию
result = MarcRecord()
# Пошли по полям при помощи справочника
directory = MARKER_LENGTH
while record[directory] != FIELD_DELIMITER:
# если нарвались на разделитель, значит, справочник закончился
tag = parse_int(record[directory:directory + 3])
field_length = parse_int(record[directory + 3:directory + 7])
field_offset = parse_int(
record[directory + 7:directory + 12]) + base_address
field = RecordField(tag)
result.fields.append(field)
if tag < 10:
# фиксированное поле
# не может содержать подполей и индикаторов
field.value = record[field_offset:field_offset + field_length -
1].decode(charset)
else:
# поле переменной длины
# содержит два однобайтных индикатора
# может содержать подполя
start = field_offset + indicator_length
stop = field_offset + field_length - indicator_length + 1
position = start
# ищем значение поля до первого разделителя
while position < stop:
if record[start] == SUBFIELD_DELIMITER:
break
position += 1
# если есть текст до первого раздлителя, запоминаем его
if position != start:
field.value = record[start:position].decode(charset)
# просматриваем подполя
start = position
while start < stop:
position = start + 1
while position < stop:
if record[position] == SUBFIELD_DELIMITER:
break
position += 1
subfield = SubField(chr(record[start + 1]),
record[start + 2:position].decode(charset))
field.subfields.append(subfield)
start = position
# переходим к следующему полю в справочнике
directory += 12
return result
def test_clear_1(self):
record = MarcRecord().add(100, 'Some value')
record.clear()
self.assertEqual(len(record.fields), 0)
def test_write_record_001(self):
with random_binary_file() as stream:
record = MarcRecord()
iso.write_record(stream, record, UTF)
self.assertTrue(stream.name)
def test_bool_1(self):
record = MarcRecord()
self.assertFalse(bool(record))
record.add(100, 'Field 100')
self.assertTrue(bool(record))
def test_str_1(self):
record = MarcRecord().add(100, 'Field 100') \
.add(200, 'Field 200', SubField('a', 'Subfield A'))
self.assertEqual('100#Field 100\n200#Field 200^aSubfield A', str(record))
def test_getitem_1(self):
record = MarcRecord().add(100, 'Field 100') \
.add(200, SubField('a', 'SubA'), SubField('b', 'SubB'))
self.assertEqual(record[100], 'Field 100')
self.assertIsNone(record[200])
self.assertIsNone(record[300])
def test_fm_1(self):
record = MarcRecord().add(100, 'Field 100').add(200, 'Field 200')
self.assertEqual('Field 100', record.fm(100))
self.assertEqual('Field 200', record.fm(200))
self.assertIsNone(record.fm(300))
def test_iadd_2(self):
record = MarcRecord()
record += (RecordField(100, 'Field 100'), RecordField(200, 'Field 200'))
self.assertEqual(len(record.fields), 2)
