1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
"""
Part of the bsie test suite.
A copy of the license is provided with the project.
Author: Matthias Baumgartner, 2022
"""
# standard imports
from functools import partial
import importlib
import os
import unittest
# external imports
import PIL.Image
# bsie imports
from bsie.utils import errors
# objects to test
from bsie.reader.preview._rawpy import RawpyPreviewReader
## code ##
class TestRawpyPreviewReader(unittest.TestCase):
def setUp(self):
if __package__ is None or __package__ == '': # direct call or local discovery
importlib.import_module('load_nef', __package__).get()
else: # parent discovery
importlib.import_module('.load_nef', __package__).get()
def test_call(self):
rdr = RawpyPreviewReader()
# raises exception when image cannot be read
self.assertRaises(errors.ReaderError, rdr,
os.path.join(os.path.dirname(__file__), 'invalid.nef'))
# raises exception when image has invalid type
self.assertRaises(errors.UnsupportedFileFormatError, rdr,
os.path.join(os.path.dirname(__file__), 'invalid.jpg'))
self.assertRaises(errors.UnsupportedFileFormatError, rdr,
os.path.join(os.path.dirname(__file__), 'invalid.foo'))
# proper file produces a generator
gen = rdr(os.path.join(os.path.dirname(__file__), 'testimage.nef'))
self.assertIsInstance(gen, partial)
# generator produces an image
img = gen(10)
self.assertIsInstance(img, PIL.Image.Image)
self.assertEqual(img.size, (10, 7))
self.assertEqual(sum(band for pix in img.getdata() for band in pix), 15269)
# cleanup
img.close()
## main ##
if __name__ == '__main__':
unittest.main()
## EOF ##
|
