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      1 /*
      2  * Copyright (C) 2009 The Guava Authors
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.google.common.net;
     18 
     19 import com.google.common.collect.ImmutableList;
     20 import com.google.common.testing.EqualsTester;
     21 import com.google.common.testing.NullPointerTester;
     22 
     23 import junit.framework.TestCase;
     24 
     25 import java.text.ParseException;
     26 import java.util.List;
     27 
     28 /**
     29  * {@link TestCase} for {@link HostSpecifier}.  This is a relatively
     30  * cursory test, as HostSpecifier is a thin wrapper around
     31  * {@link InetAddresses} and {@link InternetDomainName}; the unit tests for
     32  * those classes explore numerous corner cases.  The intent here is to
     33  * confirm that everything is wired up properly.
     34  *
     35  * @author Craig Berry
     36  */
     37 public final class HostSpecifierTest extends TestCase {
     38 
     39   private static final List<String> GOOD_IPS = ImmutableList.of(
     40       "1.2.3.4", "2001:db8::1", "[2001:db8::1]");
     41 
     42   private static final List<String> BAD_IPS = ImmutableList.of(
     43       "1.2.3", "2001:db8::1::::::0", "[2001:db8::1", "[::]:80");
     44 
     45   private static final List<String> GOOD_DOMAINS = ImmutableList.of(
     46       "com", "google.com", "foo.co.uk");
     47 
     48   private static final List<String> BAD_DOMAINS = ImmutableList.of(
     49       "foo.blah", "", "[google.com]");
     50 
     51   public void testGoodIpAddresses() throws ParseException {
     52     for (String spec : GOOD_IPS) {
     53       assertGood(spec);
     54     }
     55   }
     56 
     57   public void testBadIpAddresses() {
     58     for (String spec : BAD_IPS) {
     59       assertBad(spec);
     60     }
     61   }
     62 
     63   public void testGoodDomains() throws ParseException {
     64     for (String spec : GOOD_DOMAINS) {
     65       assertGood(spec);
     66     }
     67   }
     68 
     69   public void testBadDomains() {
     70     for (String spec : BAD_DOMAINS) {
     71       assertBad(spec);
     72     }
     73   }
     74 
     75   public void testEquality() {
     76     new EqualsTester()
     77         .addEqualityGroup(spec("1.2.3.4"), spec("1.2.3.4"))
     78         .addEqualityGroup(
     79             spec("2001:db8::1"), spec("2001:db8::1"), spec("[2001:db8::1]"))
     80         .addEqualityGroup(spec("2001:db8::2"))
     81         .addEqualityGroup(spec("google.com"), spec("google.com"))
     82         .addEqualityGroup(spec("www.google.com"))
     83         .testEquals();
     84   }
     85 
     86   private static HostSpecifier spec(String specifier) {
     87     return HostSpecifier.fromValid(specifier);
     88   }
     89 
     90   public void testNulls() throws Exception {
     91     final NullPointerTester tester = new NullPointerTester();
     92 
     93     tester.testAllPublicStaticMethods(HostSpecifier.class);
     94     tester.testAllPublicInstanceMethods(HostSpecifier.fromValid("google.com"));
     95   }
     96 
     97   private void assertGood(String spec) throws ParseException {
     98     HostSpecifier.fromValid(spec);  // Throws exception if not working correctly
     99     HostSpecifier.from(spec);
    100     assertTrue(HostSpecifier.isValid(spec));
    101   }
    102 
    103   private void assertBad(String spec) {
    104     try {
    105       HostSpecifier.fromValid(spec);
    106       fail("Should have thrown IllegalArgumentException: " + spec);
    107     } catch (IllegalArgumentException expected) {
    108       // Expected outcome
    109     }
    110 
    111     try {
    112       HostSpecifier.from(spec);
    113       fail("Should have thrown ParseException: " + spec);
    114     } catch (ParseException expected) {
    115       assertTrue(expected.getCause() instanceof IllegalArgumentException);
    116     }
    117 
    118     assertFalse(HostSpecifier.isValid(spec));
    119   }
    120 
    121 }
    122