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Java example source code file (TestURLEncodedUtils.java)

This example source code file (TestURLEncodedUtils.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 tags/keywords

basicnamevaluepair, d0, d1, exception, list, name1, name1=value1, name2, name4, name4=value+4, name7, namevaluepair, net, network, string, stringentity, util

The TestURLEncodedUtils.java example source code

 * ====================================================================
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * ====================================================================
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.

package org.apache.http.client.utils;

import java.net.URI;
import java.util.ArrayList;
import java.util.List;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.apache.http.NameValuePair;
import org.apache.http.entity.StringEntity;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;

public class TestURLEncodedUtils extends TestCase {
    public TestURLEncodedUtils(final String testName) {

    public static void main(String args[]) {
        String[] testCaseName = { TestURLEncodedUtils.class.getName() };

    public static Test suite() {
        return new TestSuite(TestURLEncodedUtils.class);
    public void testParseURI () throws Exception {
        List <NameValuePair> result;

        result = parse("", null);

        result = parse("Name1=Value1", null);
        assertEquals(1, result.size());
        assertNameValuePair(result.get(0), "Name1", "Value1");

        result = parse("Name2=", null);
        assertEquals(1, result.size());
        assertNameValuePair(result.get(0), "Name2", null);

        result = parse("Name3", null);
        assertEquals(1, result.size());
        assertNameValuePair(result.get(0), "Name3", null);

        result = parse("Name4=Value+4%21", null);
        assertEquals(1, result.size());
        assertNameValuePair(result.get(0), "Name4", "Value 4!");

        result = parse("Name4=Value%2B4%21", null);
        assertEquals(1, result.size());
        assertNameValuePair(result.get(0), "Name4", "Value+4!");

        result = parse("Name4=Value+4%21+%214", null);
        assertEquals(1, result.size());
        assertNameValuePair(result.get(0), "Name4", "Value 4! !4");

        result = parse("Name5=aaa&Name6=bbb", null);
        assertEquals(2, result.size());
        assertNameValuePair(result.get(0), "Name5", "aaa");
        assertNameValuePair(result.get(1), "Name6", "bbb");

        result = parse("Name7=aaa&Name7=b%2Cb&Name7=ccc", null);
        assertEquals(3, result.size());
        assertNameValuePair(result.get(0), "Name7", "aaa");
        assertNameValuePair(result.get(1), "Name7", "b,b");
        assertNameValuePair(result.get(2), "Name7", "ccc");

        result = parse("Name8=xx%2C++yy++%2Czz", null);
        assertEquals(1, result.size());
        assertNameValuePair(result.get(0), "Name8", "xx,  yy  ,zz");

    public void testParseEntity () throws Exception {
        final StringEntity entity = new StringEntity("Name1=Value1", null);

        final List <NameValuePair> result = URLEncodedUtils.parse(entity);
        assertEquals(1, result.size());
        assertNameValuePair(result.get(0), "Name1", "Value1");


    static final int SWISS_GERMAN_HELLO [] = {
        0x47, 0x72, 0xFC, 0x65, 0x7A, 0x69, 0x5F, 0x7A, 0xE4, 0x6D, 0xE4
    static final int RUSSIAN_HELLO [] = {
        0x412, 0x441, 0x435, 0x43C, 0x5F, 0x43F, 0x440, 0x438, 
        0x432, 0x435, 0x442 
    private static String constructString(int [] unicodeChars) {
        StringBuffer buffer = new StringBuffer();
        if (unicodeChars != null) {
            for (int i = 0; i < unicodeChars.length; i++) {
        return buffer.toString();

    public void testParseUTF8Entity () throws Exception {
        String ru_hello = constructString(RUSSIAN_HELLO);
        String ch_hello = constructString(SWISS_GERMAN_HELLO);
        List <NameValuePair> parameters = new ArrayList();
        parameters.add(new BasicNameValuePair("russian", ru_hello));
        parameters.add(new BasicNameValuePair("swiss", ch_hello));
        String s = URLEncodedUtils.format(parameters, HTTP.UTF_8);
        assertEquals("russian=%D0%92%D1%81%D0%B5%D0%BC_%D0%BF%D1%80%D0%B8%D0%B2%D0%B5%D1%82" +
        		"&swiss=Gr%C3%BCezi_z%C3%A4m%C3%A4", s);
        StringEntity entity = new StringEntity(s, HTTP.UTF_8);
        entity.setContentType(URLEncodedUtils.CONTENT_TYPE + HTTP.CHARSET_PARAM + HTTP.UTF_8);
        List <NameValuePair> result = URLEncodedUtils.parse(entity);
        assertEquals(2, result.size());
        assertNameValuePair(result.get(0), "russian", ru_hello);
        assertNameValuePair(result.get(1), "swiss", ch_hello);

    public void testIsEncoded () throws Exception {
        final StringEntity entity = new StringEntity("...", null);


        entity.setContentType(URLEncodedUtils.CONTENT_TYPE + "; charset=US-ASCII");


    public void testFormat () throws Exception {
        final List <NameValuePair> params = new ArrayList ();
        assertEquals(0, URLEncodedUtils.format(params, null).length());

        params.add(new BasicNameValuePair("Name1", "Value1"));
        assertEquals("Name1=Value1", URLEncodedUtils.format(params, null));

        params.add(new BasicNameValuePair("Name2", null));
        assertEquals("Name2=", URLEncodedUtils.format(params, null));

        params.add(new BasicNameValuePair("Name4", "Value 4!"));
        assertEquals("Name4=Value+4%21", URLEncodedUtils.format(params, null));

        params.add(new BasicNameValuePair("Name4", "Value+4!"));
        assertEquals("Name4=Value%2B4%21", URLEncodedUtils.format(params, null));

        params.add(new BasicNameValuePair("Name4", "Value 4! !4"));
        assertEquals("Name4=Value+4%21+%214", URLEncodedUtils.format(params, null));

        params.add(new BasicNameValuePair("Name5", "aaa"));
        params.add(new BasicNameValuePair("Name6", "bbb"));
        assertEquals("Name5=aaa&Name6=bbb", URLEncodedUtils.format(params, null));

        params.add(new BasicNameValuePair("Name7", "aaa"));
        params.add(new BasicNameValuePair("Name7", "b,b"));
        params.add(new BasicNameValuePair("Name7", "ccc"));
        assertEquals("Name7=aaa&Name7=b%2Cb&Name7=ccc", URLEncodedUtils.format(params, null));

        params.add(new BasicNameValuePair("Name8", "xx,  yy  ,zz"));
        assertEquals("Name8=xx%2C++yy++%2Czz", URLEncodedUtils.format(params, null));

    private List <NameValuePair> parse (final String params, final String encoding) {
        return URLEncodedUtils.parse(URI.create("http://hc.apache.org/params?" + params), encoding);

    private static void assertNameValuePair (
            final NameValuePair parameter, 
            final String expectedName, 
            final String expectedValue) {
        assertEquals(parameter.getName(), expectedName);
        assertEquals(parameter.getValue(), expectedValue);

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