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Java example source code file (TestScheme.java)

This example source code file (TestScheme.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

httphost, illegalargumentexception, illegalstateexception, list, scheme, schemeregistry, string, testcase, testscheme, util

The TestScheme.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
 * "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.
 * ====================================================================
 *
 * 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.conn;

import java.util.List;

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

import org.apache.http.HttpHost;
//import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.mockup.SecureSocketFactoryMockup;


/**
 * Unit tests for {@link Scheme} and {@link SchemeRegistry}.
 *
 */
public class TestScheme extends TestCase {

    public TestScheme(String testName) {
        super(testName);
    }

    public static void main(String args[]) {
        String[] testCaseName = { TestScheme.class.getName() };
        junit.textui.TestRunner.main(testCaseName);
    }

    public static Test suite() {
        return new TestSuite(TestScheme.class);
    }

    public void testConstructor() {
        Scheme http = new Scheme
            ("http", PlainSocketFactory.getSocketFactory(), 80);
        assertEquals("http", http.getName()); 
        assertEquals(80, http.getDefaultPort()); 
        assertSame(PlainSocketFactory.getSocketFactory(),
                   http.getSocketFactory()); 
        assertFalse(http.isLayered()); 
        Scheme https = new Scheme
            ("https", SecureSocketFactoryMockup.INSTANCE, 443);
        //  ("https", SSLSocketFactory.getSocketFactory(), 443);
        assertEquals("https", https.getName()); 
        assertEquals(443, https.getDefaultPort()); 
        assertSame(//SSLSocketFactory.getSocketFactory()
                   SecureSocketFactoryMockup.INSTANCE,
                   https.getSocketFactory()); 
        assertTrue(https.isLayered());

        Scheme hTtP = new Scheme
            ("hTtP", PlainSocketFactory.getSocketFactory(), 80);
        assertEquals("http", hTtP.getName());
        // the rest is no different from above

        try {
            new Scheme(null, PlainSocketFactory.getSocketFactory(), 80);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            new Scheme("http", null, 80);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            new Scheme("http", PlainSocketFactory.getSocketFactory(), -1);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            new Scheme("http", PlainSocketFactory.getSocketFactory(), 70000);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }

    public void testRegisterUnregister() {
        SchemeRegistry schmreg = new SchemeRegistry();

        Scheme http = new Scheme
            ("http", PlainSocketFactory.getSocketFactory(), 80);
        Scheme https = new Scheme
            ("https", SecureSocketFactoryMockup.INSTANCE, 443);
        //  ("https", SSLSocketFactory.getSocketFactory(), 443);
        Scheme myhttp = new Scheme
            ("http", PlainSocketFactory.getSocketFactory(), 80);

        HttpHost host  = new HttpHost("www.test.invalid", -1, "http");
        HttpHost hosts = new HttpHost("www.test.invalid", -1, "https");

        assertNull(schmreg.register(myhttp));
        assertNull(schmreg.register(https));
        assertSame(myhttp, schmreg.register(http));
        assertSame(http, schmreg.getScheme("http"));
        assertSame(http, schmreg.getScheme(host));
        assertSame(https, schmreg.getScheme("https"));
        assertSame(https, schmreg.getScheme(hosts));

        schmreg.unregister("http");
        schmreg.unregister("https");

        assertNull(schmreg.get("http")); // get() does not throw exception
        try {
            schmreg.getScheme("http"); // getScheme() does throw exception
            fail("IllegalStateException should have been thrown");
        } catch (IllegalStateException ex) {
            // expected
        }
    }


    public void testIterator() {
        SchemeRegistry schmreg = new SchemeRegistry();

        List<String> names = schmreg.getSchemeNames();
        assertNotNull(names);
        assertTrue(names.isEmpty());

        Scheme http = new Scheme
            ("http", PlainSocketFactory.getSocketFactory(), 80);
        Scheme https = new Scheme
            ("https", SecureSocketFactoryMockup.INSTANCE, 443);
        //  ("https", SSLSocketFactory.getSocketFactory(), 443);

        schmreg.register(http);
        schmreg.register(https);

        names = schmreg.getSchemeNames();
        assertNotNull(names);
        assertFalse(names.isEmpty());

        boolean flaghttp  = false;
        boolean flaghttps = false;
        String name = names.get(0);

        if ("http".equals(name))
            flaghttp = true;
        else if ("https".equals(name))
            flaghttps = true;
        else
            fail("unexpected name in iterator: " + name);

        assertNotNull(schmreg.get(name));
        schmreg.unregister(name);
        assertNull(schmreg.get(name));

        name = names.get(1);

        if ("http".equals(name)) {
            if (flaghttp) fail("name 'http' found twice");
        } else if ("https".equals(name)) {
            if (flaghttps) fail("name 'https' found twice");
        } else {
            fail("unexpected name in iterator: " + name);
        }

        assertNotNull(schmreg.get(name));
    }

    public void testIllegalRegisterUnregister() {
        SchemeRegistry schmreg = new SchemeRegistry();
        try {
            schmreg.register(null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            schmreg.unregister(null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            schmreg.get(null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            schmreg.getScheme((String)null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
        try {
            schmreg.getScheme((HttpHost)null);
            fail("IllegalArgumentException should have been thrown");
        } catch (IllegalArgumentException ex) {
            // expected
        }
    }
    
    public void testResolvePort() {
        Scheme http = new Scheme
            ("http", PlainSocketFactory.getSocketFactory(), 80);

        assertEquals(8080, http.resolvePort(8080));
        assertEquals(80, http.resolvePort(-1));
    }
    
    public void testHashCode() {
        Scheme http = new Scheme
            ("http", PlainSocketFactory.getSocketFactory(), 80);
        Scheme myhttp = new Scheme
            ("http", PlainSocketFactory.getSocketFactory(), 80);
        Scheme https = new Scheme
            ("https", SecureSocketFactoryMockup.INSTANCE, 443);
        //  ("https", SSLSocketFactory.getSocketFactory(), 443);

        assertTrue(http.hashCode() != https.hashCode()); // not guaranteed
        assertTrue(http.hashCode() == myhttp.hashCode());
    }
    
    public void testEquals() {
        Scheme http = new Scheme
            ("http", PlainSocketFactory.getSocketFactory(), 80);
        Scheme myhttp = new Scheme
            ("http", PlainSocketFactory.getSocketFactory(), 80);
        Scheme https = new Scheme
            ("https", SecureSocketFactoryMockup.INSTANCE, 443);
        //  ("https", SSLSocketFactory.getSocketFactory(), 443);

        assertFalse(http.equals(https));
        assertFalse(http.equals(null));
        assertFalse(http.equals("http"));
        assertTrue(http.equals(http));
        assertTrue(http.equals(myhttp));
        assertFalse(http.equals(https));
    }

    public void testToString() {
        Scheme http = new Scheme
            ("http", PlainSocketFactory.getSocketFactory(), 80);
        // test it twice, the result is cached
        assertEquals("http:80", http.toString());
        assertEquals("http:80", http.toString());
    }
    
}

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