Groovy example source code file (NodePrinterTest.java)

This example Groovy source code file (NodePrinterTest.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

array_declarator, array_declarator, exception, exception, foo, modifiers, nodeprintertest, slist, string, string, testcase, traversaltesthelper, traversaltesthelper, variable_def

The Groovy NodePrinterTest.java source code

package org.codehaus.groovy.antlr.treewalker;

import junit.framework.TestCase;
import org.custommonkey.xmlunit.XMLUnit;

/**
 * Testcases for the antlr AST visitor that prints groovy source code nodes as Pseudo XML.
 */
public class NodePrinterTest extends TestCase {

    protected void setUp() throws Exception {
        XMLUnit.setIgnoreWhitespace(true);
    }

    public void testAbstract() throws Exception {
        assertPseudoXmlEquals("<MODIFIERS><\"public\"><\"abstract\">",
                nodify("public abstract class Foo{}"));
    }

    public void testArrayDeclarator() throws Exception {
        assertPseudoXmlEquals(
                "<VARIABLE_DEF><\"int\"><'='><\"new\"><\"int\">",
                nodify("int[] primes = new int[5]"));
    }

    public void testRegexMatch() throws Exception {
        assertPseudoXmlEquals(
                "<\"if\"><'==~'>",
                nodify("if (foo==~\"bar\"){}"));
    }

    private void assertPseudoXmlEquals(String expected, String actual) throws Exception {
        assertEquals(expected, actual);
    }

    private String nodify(String input) throws Exception {
        TraversalTestHelper traverser = new TraversalTestHelper();
        return traverser.traverse(input, NodePrinter.class);
    }

}