def test_bom_write_with_open_file(self):
csv_file = NamedTemporaryFile(delete=False)
with open(csv_file.name, 'w') as open_file:
writer = UnicodeCSVWriter(open_file=open_file, encoding="utf-8")
s = u'ünįcodē'
row = [s, 123, datetime.date.today()]
writer.writerows([row])
with open(csv_file.name, 'rb') as read_file:
self.assertTrue(read_file.read().startswith(codecs.BOM_UTF8))
# Clean up
os.unlink(csv_file.name)
def test_bom_not_written_for_other_encodings(self):
csv_file = NamedTemporaryFile(delete=False)
with UnicodeCSVWriter(filename=csv_file.name, encoding="ascii") as writer:
s = 'boring ascii'
row = [s, 123, datetime.date.today()]
writer.writerows([row])
with open(csv_file.name, 'rb') as read_file:
self.assertFalse(read_file.read().startswith(codecs.BOM_UTF8))
# Clean up
os.unlink(csv_file.name)
def test_csv_write_output(self):
tmp_file = NamedTemporaryFile(delete=False)
with UnicodeCSVWriter(filename=tmp_file.name) as writer:
s = u'ünįcodē'
row = [s, 123, 'foo-bar']
writer.writerows([row])
with open(tmp_file.name, 'r') as read_file:
content = smart_text(read_file.read(), encoding='utf-8').strip()
self.assertEqual(content, u'ünįcodē,123,foo-bar')
# Clean up
os.unlink(tmp_file.name)
def download_selected_orders(self, request, orders):
response = HttpResponse(content_type='text/csv')
response['Content-Disposition'] = 'attachment; filename=%s' \
% self.get_download_filename(request)
writer = UnicodeCSVWriter(open_file=response)
meta_data = (
('number', _('Order number')),
('value', _('Order value')),
('date', _('Date of purchase')),
('num_items', _('Number of items')),
('status', _('Order status')),
('customer', _('Customer email address')),
('shipping_address_name', _('Deliver to name')),
('billing_address_name', _('Bill to name')),
)
columns = OrderedDict()
for k, v in meta_data:
columns[k] = v
writer.writerow(columns.values())
for order in orders:
row = columns.copy()
row['number'] = order.number
row['value'] = order.total_incl_tax
row['date'] = format_datetime(order.date_placed, 'DATETIME_FORMAT')
row['num_items'] = order.num_items
row['status'] = order.status
row['customer'] = order.email
if order.shipping_address:
row['shipping_address_name'] = order.shipping_address.name
else:
row['shipping_address_name'] = ''
if order.billing_address:
row['billing_address_name'] = order.billing_address.name
else:
row['billing_address_name'] = ''
writer.writerow(row.values())
return response
def test_context_manager(self):
tmp_file = NamedTemporaryFile()
with UnicodeCSVWriter(filename=tmp_file.name) as writer:
s = u'ünįcodē'
rows = [[s, unicodeobj(s), 123, datetime.date.today()], ]
writer.writerows(rows)
def test_can_write_different_values(self):
writer = UnicodeCSVWriter(open_file=cStringIO())
s = u'ünįcodē'
rows = [[s, unicodeobj(s), 123, datetime.date.today()], ]
writer.writerows(rows)
self.assertRaises(TypeError, writer.writerows, [object()])
def get_csv_writer(self, file_handle, **kwargs):
return UnicodeCSVWriter(open_file=file_handle, **kwargs)