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Groovy example source code file (SingletonASTTransformationTest.java)

This example Groovy source code file (SingletonASTTransformationTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

annotatednode, annotationnode, astnode, astnode, bad, bad, constantexpression, constantexpression, contract, emptyexpression, emptyexpression, runtimeexception, singletonasttransformationtest, test

The Groovy SingletonASTTransformationTest.java source code

 * Copyright 2003-2007 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.
package org.codehaus.groovy.transform;

import org.junit.Test;
import org.junit.Assert;
import org.junit.Before;

import org.codehaus.groovy.ast.expr.EmptyExpression; 
import org.codehaus.groovy.ast.expr.ConstantExpression; 
import org.codehaus.groovy.ast.ASTNode; 

 * Unit test for SingletonASTTransformation.
 * @author Hamlet D'Arcy
public class SingletonASTTransformationTest {

    public void testVisit_Contract() {
        try {
            ASTNode[] badInput = new ASTNode[]{
                new ConstantExpression("sample"), 
                new EmptyExpression() 
            new SingletonASTTransformation().visit(badInput, null); 
            Assert.fail("Contract Failure"); 
        } catch (RuntimeException ex) {
            Assert.assertTrue("Bad error msg: " + ex.getMessage(), ex.getMessage().contains("wrong types")); 
            Assert.assertTrue("Bad error msg: " + ex.getMessage(), ex.getMessage().contains("ConstantExpression")); 
            Assert.assertTrue("Bad error msg: " + ex.getMessage(), ex.getMessage().contains("EmptyExpression")); 
            Assert.assertTrue("Bad error msg: " + ex.getMessage(), ex.getMessage().contains("Expected: AnnotationNode / AnnotatedNode")); 


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