def test_parse_dimension_text(self):
line = six.b(
'Metadata:\r\nDimensions: T(443) x \xce\xbb(1)\r\nCamera Name: Andor Zyla VSC-01537'
)
self.assertEqual(parse_dimension_text_line(line),
six.b('Dimensions: T(443) x \xce\xbb(1)'))
self.assertIsNone(parse_dimension_text_line(six.b('Dim: nothing')))
def _parse_dimension_text(self):
"""While there are metadata values that represent a lot of what we want to capture, they seem to be unreliable.
Sometimes certain elements don't exist, or change their data type randomly. However, the human-readable text
is always there and in the same exact format, so we just parse that instead.
"""
dimension_text = six.b("")
if self.image_text_info is None:
return dimension_text
try:
textinfo = self.image_text_info[six.b('SLxImageTextInfo')].values()
except KeyError:
return dimension_text
for line in textinfo:
entry = parse_dimension_text_line(line)
if entry is not None:
return entry
return dimension_text
