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import IECore

import Gaffer
import GafferScene
import GafferSceneTest

class AttributeCacheTest( GafferSceneTest.SceneTestCase ) :

	def testConstructWithInputs( self ) :

		m = GafferScene.SceneReader()
		a = GafferScene.AttributeCache()
		a["in"]["bound"].setInput( m["out"]["bound"] )
		a["in"]["transform"].setInput( m["out"]["transform"] )
		a["in"]["object"].setInput( m["out"]["object"] )
		a["in"]["childNames"].setInput( m["out"]["childNames"] )

	def testSerialisationOfMasterConnection( self ) :

		s = Gaffer.ScriptNode()
		s["m"] = GafferScene.SceneReader()
		s["a"] = GafferScene.AttributeCache()

		s["a"]["in"].setInput( s["m"]["out"] )
		self.failUnless( s["a"]["in"].getInput().isSame( s["m"]["out"] ) )

		ss = s.serialise()

		s = Gaffer.ScriptNode()
		s.execute( ss )

		self.failUnless( s["a"]["in"].getInput().isSame( s["m"]["out"] ) )

	def testSerialisationOfMasterConnectionWhenInputNotSerialised( self ) :

		s = Gaffer.ScriptNode()
		s["m"] = GafferScene.SceneReader()
		s["a"] = GafferScene.AttributeCache()

		s["a"]["in"].setInput( s["m"]["out"] )
		self.failUnless( s["a"]["in"].getInput().isSame( s["m"]["out"] ) )

		ss = s.serialise( filter = Gaffer.StandardSet( [ s["a"] ] ) )

		s = Gaffer.ScriptNode()
		s.execute( ss )

		self.assertEqual( s["a"]["in"].getInput(), None )

	def testProcessNonPrimitiveObject( self ) :

		c = GafferScene.Camera()

		a = GafferScene.AttributeCache()
		a["in"].setInput( c["out"] )

		self.assertSceneValid( a["out"] )
		self.failUnless( isinstance( a["out"].object( "/camera" ), IECore.Camera ) )

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