Groovy example source code file (ParameterAnnotationTest.groovy)

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Java - Groovy tags/keywords

groovyclassloader, groovycodesource, groovycodesource, groovytestcase, methodannotation, methodannotation, myinterface, myinterface, myinterfaceimpl, myinterfaceimpl, parameterannotation, parameterannotationtest

The Groovy ParameterAnnotationTest.groovy source code

/*
* Copyright 2003-2011 the original author or authors.
*
* 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.
*/

import org.codehaus.groovy.control.*

class ParameterAnnotationTest extends GroovyTestCase {
    void testParameterAnnotation() {

        def gcl = new GroovyClassLoader()

        gcl.parseClass """
            import java.lang.annotation.*

            @Target(ElementType.METHOD)
            @Retention(RetentionPolicy.RUNTIME)
            @interface MethodAnnotation {}

            @Target(ElementType.PARAMETER)
            @Retention(RetentionPolicy.RUNTIME)
            @interface ParameterAnnotation {}

            interface MyInterface {
                @MethodAnnotation
                def method(@ParameterAnnotation def param)
            }
        """

        GroovyCodeSource codeSource = new GroovyCodeSource("""
            class MyInterfaceImpl implements MyInterface {
                def method(def param) {}
            }
        """, "script" + System.currentTimeMillis() + ".groovy", "/groovy/script")

        def cu = new CompilationUnit(CompilerConfiguration.DEFAULT, codeSource.codeSource, gcl)
        cu.addSource(codeSource.getName(), codeSource.scriptText);
        cu.compile(CompilePhase.FINALIZATION.phaseNumber)

        def classNode = cu.getClassNode("MyInterfaceImpl")
        def interfaceClassNode = classNode.getInterfaces().find { it.nameWithoutPackage == 'MyInterface' }

        def methodNode = interfaceClassNode.getDeclaredMethods("method")[0]

        // check if the AnnotationNode for 'MethodAnnotation' has been created
        assert methodNode.getAnnotations().any { an -> an.classNode.nameWithoutPackage == 'MethodAnnotation' }

        // check if the AnnotationNode for 'ParameterAnnotation' has been created
        assert methodNode.getParameters()[0].getAnnotations().any { an -> an.classNode.nameWithoutPackage == 'ParameterAnnotation' }
    }
}