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import unittest
from unittests import wtc
import wx
from io import BytesIO as FileLikeObject
import os
pngFile = os.path.join(os.path.dirname(__file__), 'toucan.png')
#---------------------------------------------------------------------------
class stream_Tests(wtc.WidgetTestCase):
def test_inputStreamParam(self):
# This tests being able to pass a Python file-like object to a
# wrapped function expecting a wxInputStream.
# First, load the image data into a StringIO object
with open(pngFile, 'rb') as f:
stream = FileLikeObject(f.read())
# Then use it to create a wx.Image
img = wx.Image(stream)
self.assertTrue(img.IsOk())
def test_outputStreamParam(self):
# This tests being able to pass a Python file-like object to a
# wrapped function expecting a wxOutputStream.
image = wx.Image(pngFile)
stream = FileLikeObject()
image.SaveFile(stream, wx.BITMAP_TYPE_PNG)
del image
stream = FileLikeObject(stream.getvalue())
image = wx.Image(stream)
self.assertTrue(image.IsOk())
#---------------------------------------------------------------------------
if __name__ == '__main__':
unittest.main()
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