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import OpenGL.GL as gl
import OpenGL.images as images
def test_createTargetArray():
size = (640,480)
array1 = images.createTargetArray( gl.GL_BGRA, size, gl.GL_UNSIGNED_INT_8_8_8_8_REV)
array2 = images.createTargetArray( gl.GL_RGBA, size, gl.GL_UNSIGNED_BYTE)
array3 = images.createTargetArray( gl.GL_RGBA, size, gl.GL_UNSIGNED_INT_8_8_8_8_REV)
assert array1.nbytes == array3.nbytes
assert array1.nbytes == array2.nbytes
try:
images.createTargetArray( gl.GL_RGBA, size, gl.GL_UNSIGNED_BYTE_3_3_2 )
except ValueError as err:
pass
else:
raise RuntimeError( """Should have failed with insufficient components in the type to hold the format""" )
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