@Test
public void testIsParametersProvided() {
TesterBeanB beanB = new TesterBeanB();
beanB.setName("Tomcat");
ValueExpression var = factory.createValueExpression(beanB, TesterBeanB.class);
context.getVariableMapper().setVariable("beanB", var);
MethodExpression me1 =
factory.createMethodExpression(
context, "${beanB.getName}", String.class, new Class<?>[] {});
MethodExpression me2 =
factory.createMethodExpression(
context, "${beanB.sayHello('JUnit')}", String.class, new Class<?>[] {String.class});
assertFalse(me1.isParmetersProvided());
assertTrue(me2.isParmetersProvided());
}
public MethodExpression createMethodExpression(
ELContext context, String expression, Class expectedReturnType, Class[] expectedParamTypes) {
ExpressionBuilder builder = new ExpressionBuilder(expression, context);
MethodExpression me = builder.createMethodExpression(expectedReturnType, expectedParamTypes);
if (expectedParamTypes == null && !me.isParmetersProvided()) {
throw new NullPointerException(MessageFactory.get("error.method.nullParms"));
}
return me;
}
