Method testCancelLoading

test/IECoreScene/PrimitiveTest.py:178–210

( self )

	@unittest.skipIf( ( IECore.TestUtil.inMacCI() or IECore.TestUtil.inWindowsCI() ), "Mac and Windows CI are too slow for reliable timing" )
	def testCancelLoading( self ) :

		strip = IECoreScene.MeshPrimitive.createPlane( imath.Box2f( imath.V2f( 0 ), imath.V2f( 100000, 1 ) ), imath.V2i( 1000000, 1 ) )
		testData = IECore.FloatVectorData( [0] * ( len( strip["P"].data ) ) )
		for i in range( 10 ):
			q = IECore.FloatVectorData( testData )
			q[0]  = i
			strip["var%i" % i] = IECoreScene.PrimitiveVariable( IECoreScene.PrimitiveVariable.Interpolation.Vertex, q )

		saveIO = IECore.MemoryIndexedIO( IECore.CharVectorData(), IECore.IndexedIO.OpenMode.Write )
		strip.save( saveIO, "test" )
		loadIO = IECore.MemoryIndexedIO( saveIO.buffer(), IECore.IndexedIO.OpenMode.Read )

		canceller = IECore.Canceller()
		cancelled = [False]

		def backgroundRun():
			try:
				IECore.Object.load( loadIO, "test", canceller )
			except IECore.Cancelled:
				cancelled[0] = True

		thread = threading.Thread(target=backgroundRun, args=())

		startTime = time.time()
		thread.start()

		time.sleep( 0.01 )
		canceller.cancel()
		thread.join()

		self.assertLess( time.time() - startTime, 0.1 )
		self.assertTrue( cancelled[0] )

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