/*
    * Copyright (C) 2009 The Guava 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 com.google.common.net;
  
  import com.google.common.collect.ImmutableList;
  import com.google.common.testing.EqualsTester;
  import com.google.common.testing.NullPointerTester;
  
  import junit.framework.TestCase;
  
  import java.text.ParseException;
  import java.util.List;
  
  /**
   * {@link TestCase} for {@link HostSpecifier}.  This is a relatively
   * cursory test, as HostSpecifier is a thin wrapper around
   * {@link InetAddresses} and {@link InternetDomainName}; the unit tests for
   * those classes explore numerous corner cases.  The intent here is to
   * confirm that everything is wired up properly.
   *
   * @author Craig Berry
   */
  public final class HostSpecifierTest extends TestCase {
  
    private static final List<String> GOOD_IPS = ImmutableList.of(
        "1.2.3.4", "2001:db8::1", "[2001:db8::1]");
  
    private static final List<String> BAD_IPS = ImmutableList.of(
        "1.2.3", "2001:db8::1::::::0", "[2001:db8::1", "[::]:80");
  
    private static final List<String> GOOD_DOMAINS = ImmutableList.of(
        "com", "google.com", "foo.co.uk");
  
    private static final List<String> BAD_DOMAINS = ImmutableList.of(
        "foo.blah", "", "[google.com]");
  
    public void testGoodIpAddresses() throws ParseException {
      for (String spec : GOOD_IPS) {
        assertGood(spec);
      }
    }
  
    public void testBadIpAddresses() {
      for (String spec : BAD_IPS) {
        assertBad(spec);
      }
    }
  
    public void testGoodDomains() throws ParseException {
      for (String spec : GOOD_DOMAINS) {
        assertGood(spec);
      }
    }
  
    public void testBadDomains() {
      for (String spec : BAD_DOMAINS) {
        assertBad(spec);
      }
    }
  
    public void testEquality() {
      new EqualsTester()
          .addEqualityGroup(spec("1.2.3.4"), spec("1.2.3.4"))
          .addEqualityGroup(
              spec("2001:db8::1"), spec("2001:db8::1"), spec("[2001:db8::1]"))
          .addEqualityGroup(spec("2001:db8::2"))
          .addEqualityGroup(spec("google.com"), spec("google.com"))
          .addEqualityGroup(spec("www.google.com"))
          .testEquals();
    }
  
    private static HostSpecifier spec(String specifier) {
      return HostSpecifier.fromValid(specifier);
    }
  
    public void testNulls() {
      final NullPointerTester tester = new NullPointerTester();
  
      tester.testAllPublicStaticMethods(HostSpecifier.class);
      tester.testAllPublicInstanceMethods(HostSpecifier.fromValid("google.com"));
    }
  
    private void assertGood(String spec) throws ParseException {
      HostSpecifier.fromValid(spec);  // Throws exception if not working correctly
      HostSpecifier.from(spec);
     assertTrue(HostSpecifier.isValid(spec));
   }
 
   private void assertBad(String spec) {
     try {
       HostSpecifier.fromValid(spec);
       fail("Should have thrown IllegalArgumentException: " + spec);
     } catch (IllegalArgumentException expected) {
       // Expected outcome
     }
 
     try {
       HostSpecifier.from(spec);
       fail("Should have thrown ParseException: " + spec);
     } catch (ParseException expected) {
       assertTrue(expected.getCause() instanceof IllegalArgumentException);
     }
 
     assertFalse(HostSpecifier.isValid(spec));
   }
 
 }