str += " otn1,[h1, h3];\n";
NodeTestResult result = executeTest( str );
Map<String, Object> map = result.context;
InternalWorkingMemory wm = (InternalWorkingMemory) map.get( "WorkingMemory" );
JoinNode join1 = (JoinNode) map.get( "join1" );
BetaMemory memory = (BetaMemory) wm.getNodeMemory( join1 );
assertEquals( 2,
memory.getRightTupleMemory().size() );
assertEquals( 2,
memory.getLeftTupleMemory().size() );