Spring Framework example source code file (TransformerUtilsTests.java)

This example Spring Framework source code file (TransformerUtilsTests.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 - Spring Framework tags/keywords

exception, exception, illegalargumentexception, object, properties, string, string, stubtransformer, stubtransformer, transformer, transformerexception, unsupportedoperationexception, unsupportedoperationexception, uriresolver, util

The Spring Framework TransformerUtilsTests.java source code

/*
 * Copyright 2002-2006 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.
 */

package org.springframework.web.servlet.view.xslt;

import junit.framework.TestCase;
import org.springframework.test.AssertThrows;

import javax.xml.transform.*;
import java.util.Properties;

/**
 * Unit tests for the {@link TransformerUtils} class.
 *
 * @author Rick Evans
 */
public final class TransformerUtilsTests extends TestCase {

	public void testEnableIndentingSunnyDay() throws Exception {
		Transformer transformer = new StubTransformer();
		TransformerUtils.enableIndenting(transformer);
		String indent = transformer.getOutputProperty(OutputKeys.INDENT);
		assertNotNull(indent);
		assertEquals("yes", indent);
		String indentAmount = transformer.getOutputProperty("{http://xml.apache.org/xslt}indent-amount");
		assertNotNull(indentAmount);
		assertEquals(String.valueOf(TransformerUtils.DEFAULT_INDENT_AMOUNT), indentAmount);
	}

	public void testEnableIndentingSunnyDayWithCustomKosherIndentAmount() throws Exception {
		final String indentAmountProperty = "10";
		Transformer transformer = new StubTransformer();
		TransformerUtils.enableIndenting(transformer, Integer.valueOf(indentAmountProperty).intValue());
		String indent = transformer.getOutputProperty(OutputKeys.INDENT);
		assertNotNull(indent);
		assertEquals("yes", indent);
		String indentAmount = transformer.getOutputProperty("{http://xml.apache.org/xslt}indent-amount");
		assertNotNull(indentAmount);
		assertEquals(indentAmountProperty, indentAmount);
	}

	public void testDisableIndentingSunnyDay() throws Exception {
		Transformer transformer = new StubTransformer();
		TransformerUtils.disableIndenting(transformer);
		String indent = transformer.getOutputProperty(OutputKeys.INDENT);
		assertNotNull(indent);
		assertEquals("no", indent);
	}

	public void testEnableIndentingWithNullTransformer() throws Exception {
		new AssertThrows(IllegalArgumentException.class) {
			public void test() throws Exception {
				TransformerUtils.enableIndenting(null);
			}
		}.runTest();
	}

	public void testDisableIndentingWithNullTransformer() throws Exception {
		new AssertThrows(IllegalArgumentException.class) {
			public void test() throws Exception {
				TransformerUtils.disableIndenting(null);
			}
		}.runTest();
	}

	public void testEnableIndentingWithNegativeIndentAmount() throws Exception {
		new AssertThrows(IllegalArgumentException.class) {
			public void test() throws Exception {
				TransformerUtils.enableIndenting(new StubTransformer(), -21938);
			}
		}.runTest();
	}

	public void testEnableIndentingWithZeroIndentAmount() throws Exception {
		TransformerUtils.enableIndenting(new StubTransformer(), 0);
	}


	private static class StubTransformer extends Transformer {

		private Properties outputProperties = new Properties();


		public void transform(Source xmlSource, Result outputTarget) throws TransformerException {
			throw new UnsupportedOperationException();
		}

		public void setParameter(String name, Object value) {
			throw new UnsupportedOperationException();
		}

		public Object getParameter(String name) {
			throw new UnsupportedOperationException();
		}

		public void clearParameters() {
			throw new UnsupportedOperationException();
		}

		public void setURIResolver(URIResolver resolver) {
			throw new UnsupportedOperationException();
		}

		public URIResolver getURIResolver() {
			throw new UnsupportedOperationException();
		}

		public void setOutputProperties(Properties oformat) {
			throw new UnsupportedOperationException();
		}

		public Properties getOutputProperties() {
			return this.outputProperties;
		}

		public void setOutputProperty(String name, String value) throws IllegalArgumentException {
			this.outputProperties.setProperty(name, value);
		}

		public String getOutputProperty(String name) throws IllegalArgumentException {
			return this.outputProperties.getProperty(name);
		}

		public void setErrorListener(ErrorListener listener) throws IllegalArgumentException {
			throw new UnsupportedOperationException();
		}

		public ErrorListener getErrorListener() {
			throw new UnsupportedOperationException();
		}

	}

}