def test_toNumber(self):
self.assertEqual( 4, WriterDocument.toNumber( '4' ) )
self.assertEqual( 4000, WriterDocument.toNumber( '4,000.00' ) )
self.assertEqual( 4000, WriterDocument.toNumber( '$4,000.00' ) )
self.assertEqual( 4000, WriterDocument.toNumber( '4 000.00 $' ) )
