ParserConfiguration pconf = new ParserConfiguration();
ParserContext pctx = new ParserContext(pconf);
pctx.addInput("this", Triangle.class);
pctx.setStrongTyping(true);
ExecutableStatement stmt = (ExecutableStatement) MVEL.compileExpression(str, pctx);
assertEquals(Integer.valueOf(0), (Integer) MVEL.executeExpression(stmt, new Triangle(), new HashMap()));
str = "deliveries.size == 0";
stmt = (ExecutableStatement) MVEL.compileExpression(str, pctx);