/*
* 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.util.Optional;
import org.junit.Assert;
import org.junit.Test;
public class TestOptionalELResolver {
@Test(expected = PropertyNotFoundException.class)
public void testIssue176WithoutOptionalResolverOptionalEmpty() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
TesterBeanA beanA = new TesterBeanA();
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt.name}", String.class);
ve.getValue(context);
}
@Test(expected = PropertyNotFoundException.class)
public void testIssue176WithoutOptionalResolverOptionalPresent() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
TesterBeanA beanA = new TesterBeanA();
TesterBeanB beanB = new TesterBeanB("test");
beanA.setBeanB(beanB);
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt.name}", String.class);
ve.getValue(context);
}
@Test
public void testIssue176WithOptionalResolverOptionalEmptyWithProperty() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
context.addELResolver(new OptionalELResolver());
TesterBeanA beanA = new TesterBeanA();
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt.name}", String.class);
Object result = ve.getValue(context);
Assert.assertEquals("", result);
}
@Test
public void testIssue176WithOptionalResolverOptionalPresentWithProperty() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
context.addELResolver(new OptionalELResolver());
TesterBeanA beanA = new TesterBeanA();
TesterBeanB beanB = new TesterBeanB("test");
beanA.setBeanB(beanB);
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt.name}", String.class);
Object result = ve.getValue(context);
Assert.assertEquals("test", result);
}
@Test
public void testIssue176WithOptionalResolverOptionalEmptyWithoutProperty() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
context.addELResolver(new OptionalELResolver());
TesterBeanA beanA = new TesterBeanA();
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt}", TesterBeanB.class);
Object result = ve.getValue(context);
Assert.assertNull(result);
}
@Test
public void testIssue176WithOptionalResolverOptionalPresentWithoutProperty() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
context.addELResolver(new OptionalELResolver());
TesterBeanA beanA = new TesterBeanA();
TesterBeanB beanB = new TesterBeanB("test");
beanA.setBeanB(beanB);
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt}", TesterBeanB.class);
Object result = ve.getValue(context);
Assert.assertEquals(beanB, result);
}
@Test
public void testIssue176WithoutOptionalResolverOptionalEmptyWithMap() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
TesterBeanA beanA = new TesterBeanA();
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve =
factory.createValueExpression(context, "${beanA.beanBOpt.map(b -> b.name)}", Optional.class);
Object result = ve.getValue(context);
Assert.assertNotNull(result);
Assert.assertEquals(Optional.class, result.getClass());
Assert.assertTrue(((Optional<?>) result).isEmpty());
}
@Test
public void testIssue176WithoutOptionalResolverOptionalPresentWithMap() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
TesterBeanA beanA = new TesterBeanA();
TesterBeanB beanB = new TesterBeanB("test");
beanA.setBeanB(beanB);
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve =
factory.createValueExpression(context, "${beanA.beanBOpt.map(b -> b.name)}", Optional.class);
Object result = ve.getValue(context);
Assert.assertNotNull(result);
Assert.assertEquals(Optional.class, result.getClass());
Assert.assertEquals("test", ((Optional<?>) result).get());
}
@Test
public void testIssue176WithOptionalResolverOptionalEmptyWithMap() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
context.addELResolver(new OptionalELResolver());
TesterBeanA beanA = new TesterBeanA();
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt.map(b -> b.name)}", String.class);
Object result = ve.getValue(context);
Assert.assertEquals("", result);
}
@Test(expected = MethodNotFoundException.class)
public void testIssue176WithOptionalResolverOptionalPresentWithMap() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
context.addELResolver(new OptionalELResolver());
TesterBeanA beanA = new TesterBeanA();
TesterBeanB beanB = new TesterBeanB("test");
beanA.setBeanB(beanB);
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt.map(b -> b.name)}", String.class);
ve.getValue(context);
}
@Test(expected = MethodNotFoundException.class)
public void testWithoutOptionalResolverInvokeOnEmpty() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
TesterBeanA beanA = new TesterBeanA();
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt.doSomething()}", String.class);
ve.getValue(context);
}
@Test
public void testWithOptionalResolverInvokeOnEmpty() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
context.addELResolver(new OptionalELResolver());
TesterBeanA beanA = new TesterBeanA();
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt.doSomething()}", String.class);
Object result = ve.getValue(context);
Assert.assertEquals("", result);
}
@Test(expected = MethodNotFoundException.class)
public void testWithoutOptionalResolverInvokeOnPresent() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
TesterBeanA beanA = new TesterBeanA();
TesterBeanB beanB = new TesterBeanB("test");
beanA.setBeanB(beanB);
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt.doSomething()}", String.class);
ve.getValue(context);
}
@Test
public void testWithOptionalResolverInvokeOnPresent() {
ExpressionFactory factory = ExpressionFactory.newInstance();
StandardELContext context = new StandardELContext(factory);
context.addELResolver(new OptionalELResolver());
TesterBeanA beanA = new TesterBeanA();
TesterBeanB beanB = new TesterBeanB("test");
beanA.setBeanB(beanB);
ValueExpression varBeanA = factory.createValueExpression(beanA, TesterBeanA.class);
context.getVariableMapper().setVariable("beanA", varBeanA);
ValueExpression ve = factory.createValueExpression(context, "${beanA.beanBOpt.doSomething()}", String.class);
Object result = ve.getValue(context);
Assert.assertEquals(beanB.doSomething(), result);
}
}