src/test/java/org/apache/bcel/AnnotationDefaultAttributeTest.java

/*
 * 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
 *
 *   https://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
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 */

package org.apache.bcel;

import static org.junit.jupiter.api.Assertions.assertEquals;

import org.apache.bcel.classfile.AnnotationDefault;
import org.apache.bcel.classfile.ElementValue;
import org.apache.bcel.classfile.JavaClass;
import org.apache.bcel.classfile.Method;
import org.apache.bcel.classfile.SimpleElementValue;
import org.junit.jupiter.api.Test;

class AnnotationDefaultAttributeTest extends AbstractTest {

    /**
     * For values in an annotation that have default values, we should be able to query the AnnotationDefault attribute
     * against the method to discover the default value that was originally declared.
     */
    @Test
    void testMethodAnnotations() throws ClassNotFoundException {
        final JavaClass clazz = getTestJavaClass(PACKAGE_BASE_NAME + ".data.SimpleAnnotation");
        final Method m = getMethod(clazz, "fruit");
        final AnnotationDefault a = (AnnotationDefault) findAttribute("AnnotationDefault", m.getAttributes());
        final SimpleElementValue val = (SimpleElementValue) a.getDefaultValue();
        assertEquals(ElementValue.STRING, val.getElementValueType(), "Wrong element value type");
        assertEquals("bananas", val.getValueString(), "Wrong default");
    }
}