AnnotationInstanceProviderTest.java

/*
 * JBoss, Home of Professional Open Source
 * Copyright 2011, Red Hat, Inc. and/or its affiliates, and individual
 * contributors by the @authors tag. See the copyright.txt in the
 * distribution for a full listing of individual contributors.
 *
 * Licensed 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 org.jboss.solder.test.util;

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.jboss.solder.reflection.AnnotationInstanceProvider;
import org.jboss.solder.reflection.NullMemberException;
import org.junit.Test;

/**
 * Test of dynamic annotation creation
 *
 * @author Stuart Douglas
 */
public class AnnotationInstanceProviderTest {

    /**
     * basic test to make sure the annotation creator can create an annotation
     */
    @Test
    public void testSimpleAnnotationCreation() {
        AnnotationInstanceProvider provider = new AnnotationInstanceProvider();
        SimpleAnnotation an = provider.get(SimpleAnnotation.class, Collections.<String, Object>emptyMap());
        assert an != null : "Annotation was null";
        assert an.annotationType() == SimpleAnnotation.class : "Annotation returned wrong result for annotationType()";
        SimpleAnnotation realAn = AnnotatedClass.class.getAnnotation(SimpleAnnotation.class);
        assert an.equals(realAn) : "Equality between declared annotation failed";
    }

    /**
     * Test with int members
     */
    @Test
    public void testIntMemberAnnotationCreation() {
        AnnotationInstanceProvider provider = new AnnotationInstanceProvider();
        Map<String, Object> values = new HashMap<String, Object>();
        values.put("value", Long.valueOf(1));
        values.put("someMember", Integer.valueOf(0));
        IntMemberAnnotation an = provider.get(IntMemberAnnotation.class, values);
        assert an != null : "Annotation was null";
        assert an.annotationType() == IntMemberAnnotation.class : "Annotation returned wrong result for annotationType()";
        IntMemberAnnotation realAn = AnnotatedClass.class.getAnnotation(IntMemberAnnotation.class);
        assert an.equals(realAn) : "Equality between declared annotation failed";
    }

    /**
     * Test with int members
     */
    @Test
    public void testNotEqualIntMemberAnnotationCreation() {
        AnnotationInstanceProvider provider = new AnnotationInstanceProvider();
        Map<String, Object> values = new HashMap<String, Object>();
        values.put("value", Long.valueOf(6));
        values.put("someMember", Integer.valueOf(0));
        IntMemberAnnotation an = provider.get(IntMemberAnnotation.class, values);
        assert an != null : "Annotation was null";
        assert an.annotationType() == IntMemberAnnotation.class : "Annotation returned wrong result for annotationType()";
        IntMemberAnnotation realAn = AnnotatedClass.class.getAnnotation(IntMemberAnnotation.class);
        assert !an.equals(realAn) : "Equality between declared annotation failed, annotations were not equal but equals returned true";
    }

    /**
     * Test with multiple members
     */
    @Test
    public void testMultipleMemberAnnotationCreation() {
        AnnotationInstanceProvider provider = new AnnotationInstanceProvider();
        Map<String, Object> values = new HashMap<String, Object>();
        values.put("intMember", 1);
        values.put("longMember", 1);
        values.put("shortMember", 1);
        values.put("floatMember", 0);
        values.put("doubleMember", 0);
        values.put("byteMember", ((byte) 1));
        values.put("charMember", 'c');
        values.put("booleanMember", true);
        values.put("intArrayMember", new int[]{0, 1});
        MultipleMembers an = provider.get(MultipleMembers.class, values);
        assert an != null : "Annotation was null";
        assert an.annotationType() == MultipleMembers.class : "Annotation returned wrong result for annotationType()";
        MultipleMembers realAn = AnnotatedClass.class.getAnnotation(MultipleMembers.class);
        assert an.equals(realAn) : "Equality between declared annotation failed";
    }

    /**
     * Test that an exception is thrown when a member is null
     */
    @Test(expected = NullMemberException.class)
    public void testNullMemberException() {
        AnnotationInstanceProvider provider = new AnnotationInstanceProvider();
        Map<String, Object> values = new HashMap<String, Object>();
        values.put("value", Long.valueOf(1));
        values.put("someMember", null);
        IntMemberAnnotation an = provider.get(IntMemberAnnotation.class, values);

    }

    /**
     * Test that an Annotation will use the default values if a member with
     * default values is null
     */
    @Test
    public void testDefaultValue() {
        AnnotationInstanceProvider provider = new AnnotationInstanceProvider();
        Map<String, Object> values = new HashMap<String, Object>();
        values.put("someMember", Integer.valueOf(0));
        IntMemberAnnotation an = provider.get(IntMemberAnnotation.class, values);
        assert an != null : "Annotation was null";
        assert an.value() == 1 : "Annotation member was not equal to default value";
    }

}