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'''Test cases for QImage'''
import unittest
from PySide.QtGui import *
from helper import *
class QImageTest(UsesQApplication):
'''Test case for calling setPixel with float as argument'''
def testQImageStringBuffer(self):
'''Test if the QImage signatures receiving string buffers exist.'''
img0 = QImage(adjust_filename('sample.png', __file__))
print type(img0.bits())
# btw let's test the bits() method
img1 = QImage(img0.bits(), img0.width(), img0.height(), img0.format())
self.assertEqual(img0, img1)
img2 = QImage(img0.bits(), img0.width(), img0.height(), img0.bytesPerLine(), img0.format())
self.assertEqual(img0, img2)
## test scanLine method
data1 = img0.scanLine(0)
data2 = img1.scanLine(0)
self.assertEqual(data1, data2)
self.assertEquals(str(data1), img0.bits()[:img0.bytesPerLine()])
self.assertEquals(str(data2), img0.bits()[:img0.bytesPerLine()])
if __name__ == '__main__':
unittest.main()
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