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from __future__ import with_statement

import unittest
import IECore
import IECoreRI
import os.path
import os

class MotionTest( IECoreRI.TestCase ) :

	def test( self ) :

		r = IECoreRI.Renderer( "test/IECoreRI/output/motionTest.rib" )
		with IECore.WorldBlock( r ) :
		
			with IECore.MotionBlock( r, [ 1.75, 2.25 ] ) :
			
				r.concatTransform( IECore.M44f.createTranslated( IECore.V3f( 0 ) ) )
				r.concatTransform( IECore.M44f.createTranslated( IECore.V3f( 1 ) ) )

		l = "\n".join( file( "test/IECoreRI/output/motionTest.rib" ).readlines() )
		self.assert_( "MotionBegin [ 1.75 2.25 ]" in l )
		self.assert_( "MotionEnd" in l )

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