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basic tests for tiff writer - refs #1831

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Dane Springmeyer 2013-05-10 14:34:29 -07:00
parent b816a47de2
commit 374e4af8e4
1 changed files with 33 additions and 0 deletions
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33
tests/python_tests/image_test.py
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@ -12,6 +12,39 @@ def setup():
# from another directory we need to chdir() # from another directory we need to chdir()
os.chdir(execution_path('.')) os.chdir(execution_path('.'))
def test_tiff_round_trip():
filepath = '/tmp/mapnik-tiff-io.tiff'
im = mapnik.Image(255,267)
im.background = mapnik.Color('rgba(1,2,3,.5)')
im.save(filepath,'tiff')
im2 = mapnik.Image.open(filepath)
eq_(im.width(),im2.width())
eq_(im.height(),im2.height())
eq_(len(im.tostring()),len(im2.tostring()))
eq_(len(im.tostring('tiff')),len(im2.tostring('tiff')))
def test_jpeg_round_trip():
filepath = '/tmp/mapnik-jpeg-io.jpeg'
im = mapnik.Image(255,267)
im.background = mapnik.Color('rgba(1,2,3,.5)')
im.save(filepath,'jpeg')
im2 = mapnik.Image.open(filepath)
eq_(im.width(),im2.width())
eq_(im.height(),im2.height())
eq_(len(im.tostring()),len(im2.tostring()))
eq_(len(im.tostring('jpeg')),len(im2.tostring('jpeg')))
def test_png_round_trip():
filepath = '/tmp/mapnik-png-io.png'
im = mapnik.Image(255,267)
im.background = mapnik.Color('rgba(1,2,3,.5)')
im.save(filepath,'png')
im2 = mapnik.Image.open(filepath)
eq_(im.width(),im2.width())
eq_(im.height(),im2.height())
eq_(len(im.tostring()),len(im2.tostring()))
eq_(len(im.tostring('png')),len(im2.tostring('png')))
eq_(len(im.tostring('png8')),len(im2.tostring('png8')))
def test_image_open_from_string(): def test_image_open_from_string():
filepath = '../data/images/dummy.png' filepath = '../data/images/dummy.png'