/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package jakarta.el;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Map;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class TestBeanELResolverVarargsInvocation {
public static class Foo {
public String joinDelimited(String delim, String... strings) {
StringBuilder result = new StringBuilder();
if (strings != null) {
for (String s : strings) {
if (delim != null && result.length() > 0) {
result.append(delim);
}
result.append(s);
}
}
return result.toString();
}
public String join(String... strings) {
return joinDelimited(null, strings);
}
}
private Foo foo;
private ELContext elContext;
private BeanELResolver beanELResolver;
@Before
public void setup() {
foo = new Foo();
beanELResolver = new BeanELResolver();
elContext = new ELContext() {
private VariableMapper variableMapper = new VariableMapper() {
private Map<String,ValueExpression> vars = new HashMap<>();
@Override
public ValueExpression setVariable(String arg0, ValueExpression arg1) {
if (arg1 == null) {
return vars.remove(arg0);
} else {
return vars.put(arg0, arg1);
}
}
@Override
public ValueExpression resolveVariable(String arg0) {
return vars.get(arg0);
}
};
private FunctionMapper functionMapper = new FunctionMapper() {
@Override
public Method resolveFunction(String arg0, String arg1) {
return null;
}
};
@Override
public VariableMapper getVariableMapper() {
return variableMapper;
}
@Override
public FunctionMapper getFunctionMapper() {
return functionMapper;
}
@Override
public ELResolver getELResolver() {
return beanELResolver;
}
};
}
/**
* Tests varargs that come after an opening argument.
*/
@Test
public void testJoinDelimited() {
Assert.assertEquals(foo.joinDelimited("-", "foo", "bar", "baz"), beanELResolver.invoke(elContext, foo,
"joinDelimited", null, new Object[] { "-", "foo", "bar", "baz" }));
}
/**
* Tests varargs that constitute a method's only parameters, as well as bogus results due to improper matching of
* ANY vararg method, and depending on the order in which reflected methods are encountered.
*/
@Test
public void testJoin() {
Assert.assertEquals(foo.join("foo", "bar", "baz"),
beanELResolver.invoke(elContext, foo, "join", null, new Object[] { "foo", "bar", "baz" }));
}
}