"""

Part of the bsie test suite.
A copy of the license is provided with the project.
Author: Matthias Baumgartner, 2022
"""
# standard imports
import os
import unittest

# external imports
import PIL.Image

# bsie imports
from bsie.utils import errors

# objects to test
from bsie.reader.image._pillow import PillowImage


## code ##

class TestPillowImage(unittest.TestCase):
    def test_call(self):
        rdr = PillowImage()
        # returns PIL image
        img = rdr(os.path.join(os.path.dirname(__file__), 'testimage.jpg'))
        self.assertEqual(img.size, (1, 1))
        self.assertEqual(img.getdata().getpixel((0, 0)), (0, 0, 0))
        img.close()
        # raises exception when image cannot be read
        self.assertRaises(errors.ReaderError, rdr,
            os.path.join(os.path.dirname(__file__), 'invalid.jpg'))
        # NOTE: PIL can actually read raw image files (returns the thumbnail)
        #self.assertRaises(errors.ReaderError, rdr,
        #    os.path.join(os.path.dirname(__file__), 'testimage.nef'))


## main ##

if __name__ == '__main__':
    unittest.main()

## EOF ##