Java example source code file (InternetDomainNameTest.java)

This example Java source code file (InternetDomainNameTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

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Java - Java tags/keywords

almost_too_long, almost_too_many_levels, delta, immutableset, internetdomainname, invalid_ip_addrs, invalid_name, no_ps, non_ps, nullpointertester, somewhere_under_ps, string, under_private_domain, valid_name

The InternetDomainNameTest.java Java example source code

/*
 * 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.annotations.GwtCompatible;
import com.google.common.annotations.GwtIncompatible;
import com.google.common.base.Ascii;
import com.google.common.base.Strings;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.common.testing.EqualsTester;
import com.google.common.testing.NullPointerTester;

import junit.framework.TestCase;

/**
 * {@link TestCase} for {@link InternetDomainName}.
 *
 * @author Craig Berry
 */
@GwtCompatible(emulated = true)
public final class InternetDomainNameTest extends TestCase {
  private static final InternetDomainName UNICODE_EXAMPLE =
      InternetDomainName.from("j\u00f8rpeland.no");
  private static final InternetDomainName PUNYCODE_EXAMPLE =
      InternetDomainName.from("xn--jrpeland-54a.no");

  /**
   * The Greek letter delta, used in unicode testing.
   */
  private static final String DELTA = "\u0394";

  /**
   * A domain part which is valid under lenient validation, but invalid under
   * strict validation.
   */
  static final String LOTS_OF_DELTAS = Strings.repeat(DELTA, 62);

  private static final String ALMOST_TOO_MANY_LEVELS =
      Strings.repeat("a.", 127);

  private static final String ALMOST_TOO_LONG =
      Strings.repeat("aaaaa.", 40) + "1234567890.c";

  private static final ImmutableSet<String> VALID_NAME = ImmutableSet.of(
      "foo.com",
      "f-_-o.cOM",
      "f--1.com",
      "f11-1.com",
      "www",
      "abc.a23",
      "biz.com.ua",
      "x",
      "fOo",
      "f--o",
      "f_a",
      "foo.net.us\uFF61ocm",
      "woo.com.",
      "a" + DELTA + "b.com",
      ALMOST_TOO_MANY_LEVELS,
      ALMOST_TOO_LONG);

  private static final ImmutableSet<String> INVALID_NAME = ImmutableSet.of(
      "",
      " ",
      "127.0.0.1",
      "::1", "13",
      "abc.12c",
      "foo-.com",
      "_bar.quux",
      "foo+bar.com",
      "foo!bar.com",
      ".foo.com",
      "..bar.com",
      "baz..com",
      "..quiffle.com",
      "fleeb.com..",
      ".",
      "..",
      "...",
      "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.com",
      "a" + DELTA + " .com",
      ALMOST_TOO_MANY_LEVELS + "com",
      ALMOST_TOO_LONG + ".c");

  private static final ImmutableSet<String> PS = ImmutableSet.of(
      "com",
      "co.uk",
      "foo.bd",
      "xxxxxx.bd",
      "org.mK",
      "us",
      "uk\uFF61com.",  // Alternate dot character
      "\u7f51\u7edc.Cn",  // "网络.Cn"
      "j\u00f8rpeland.no",  // "jorpeland.no" (first o slashed)
      "xn--jrpeland-54a.no"  // IDNA (punycode) encoding of above
  );

  private static final ImmutableSet<String> NO_PS = ImmutableSet.of(
      "www", "foo.ihopethiswillneverbeapublicsuffix", "x.y.z");

  private static final ImmutableSet<String> NON_PS = ImmutableSet.of(
      "foo.bar.com", "foo.ca", "foo.bar.ca",
      "foo.bar.co.il", "state.CA.us", "www.state.pa.us", "pvt.k12.ca.us",
      "www.google.com", "www4.yahoo.co.uk", "home.netscape.com",
      "web.MIT.edu", "foo.eDu.au", "utenti.blah.IT", "dominio.com.co");

  private static final ImmutableSet<String> TOP_PRIVATE_DOMAIN =
      ImmutableSet.of("google.com", "foo.Co.uk", "foo.ca.us.");

  private static final ImmutableSet<String> UNDER_PRIVATE_DOMAIN =
      ImmutableSet.of("foo.bar.google.com", "a.b.co.uk", "x.y.ca.us");

  private static final ImmutableSet<String> VALID_IP_ADDRS = ImmutableSet.of(
      "1.2.3.4", "127.0.0.1", "::1", "2001:db8::1");

  private static final ImmutableSet<String> INVALID_IP_ADDRS = ImmutableSet.of(
      "", "1", "1.2.3", "...", "1.2.3.4.5", "400.500.600.700",
      ":", ":::1", "2001:db8:");

  private static final ImmutableSet<String> SOMEWHERE_UNDER_PS =
      ImmutableSet.of(
          "foo.bar.google.com",
          "a.b.c.1.2.3.ca.us",
          "site.jp",
          "uomi-online.kir.jp",
          "jprs.co.jp",
          "site.quick.jp",
          "site.tenki.jp",
          "site.or.jp",
          "site.gr.jp",
          "site.ne.jp",
          "site.ac.jp",
          "site.ad.jp",
          "site.ed.jp",
          "site.geo.jp",
          "site.go.jp",
          "site.lg.jp",
          "1.fm",
          "site.cc",
          "site.ee",
          "site.fi",
          "site.fm",
          "site.gr",
          "www.leguide.ma",
          "site.ma",
          "some.org.mk",
          "site.mk",
          "site.tv",
          "site.us",
          "www.odev.us",
          "www.GOOGLE.com",
          "www.com",
          "google.com",
          "www7.google.co.uk",
          "google.Co.uK",
          "jobs.kt.com.",
          "home.netscape.com",
          "web.stanford.edu",
          "stanford.edu",
          "state.ca.us",
          "www.state.ca.us",
          "state.ca.us",
          "pvt.k12.ca.us",
          "www.rave.ca.",
          "cnn.ca",
          "ledger-enquirer.com",
          "it-trace.ch",
          "cool.dk",
          "cool.co.uk",
          "cool.de",
          "cool.es",
          "cool\uFF61fr", // Alternate dot character
          "cool.nl",
          "members.blah.nl.",
          "cool.se",
          "utenti.blah.it",
          "kt.co",
          "a\u7f51\u7edcA.\u7f51\u7edc.Cn"  // "a网络A.网络.Cn"
      );

  public void testValid() {
    for (String name : VALID_NAME) {
      InternetDomainName.from(name);
    }
  }

  public void testInvalid() {
    for (String name : INVALID_NAME) {
      try {
        InternetDomainName.from(name);
        fail("Should have been invalid: '" + name + "'");
      } catch (IllegalArgumentException expected) {
        // Expected case
      }
    }
  }

  public void testPublicSuffix() {
    for (String name : PS) {
      final InternetDomainName domain = InternetDomainName.from(name);
      assertTrue(name, domain.isPublicSuffix());
      assertTrue(name, domain.hasPublicSuffix());
      assertFalse(name, domain.isUnderPublicSuffix());
      assertFalse(name, domain.isTopPrivateDomain());
      assertEquals(domain, domain.publicSuffix());
    }

    for (String name : NO_PS) {
      final InternetDomainName domain = InternetDomainName.from(name);
      assertFalse(name, domain.isPublicSuffix());
      assertFalse(name, domain.hasPublicSuffix());
      assertFalse(name, domain.isUnderPublicSuffix());
      assertFalse(name, domain.isTopPrivateDomain());
      assertNull(domain.publicSuffix());
    }

    for (String name : NON_PS) {
      final InternetDomainName domain = InternetDomainName.from(name);
      assertFalse(name, domain.isPublicSuffix());
      assertTrue(name, domain.hasPublicSuffix());
      assertTrue(name, domain.isUnderPublicSuffix());
    }
  }

  public void testUnderPublicSuffix() {
    for (String name : SOMEWHERE_UNDER_PS) {
      final InternetDomainName domain = InternetDomainName.from(name);
      assertFalse(name, domain.isPublicSuffix());
      assertTrue(name, domain.hasPublicSuffix());
      assertTrue(name, domain.isUnderPublicSuffix());
    }
  }

  public void testTopPrivateDomain() {
    for (String name : TOP_PRIVATE_DOMAIN) {
      final InternetDomainName domain = InternetDomainName.from(name);
      assertFalse(name, domain.isPublicSuffix());
      assertTrue(name, domain.hasPublicSuffix());
      assertTrue(name, domain.isUnderPublicSuffix());
      assertTrue(name, domain.isTopPrivateDomain());
      assertEquals(domain.parent(), domain.publicSuffix());
    }
  }

  public void testUnderPrivateDomain() {
    for (String name : UNDER_PRIVATE_DOMAIN) {
      final InternetDomainName domain = InternetDomainName.from(name);
      assertFalse(name, domain.isPublicSuffix());
      assertTrue(name, domain.hasPublicSuffix());
      assertTrue(name, domain.isUnderPublicSuffix());
      assertFalse(name, domain.isTopPrivateDomain());
    }
  }

  public void testParent() {
    assertEquals(
        "com",
        InternetDomainName.from("google.com").parent().toString());
    assertEquals(
        "uk",
        InternetDomainName.from("co.uk").parent().toString());
    assertEquals(
        "google.com",
        InternetDomainName.from("www.google.com").parent().toString());

    try {
      InternetDomainName.from("com").parent();
      fail("'com' should throw ISE on .parent() call");
    } catch (IllegalStateException expected) {
    }
  }

  public void testChild() {
    InternetDomainName domain = InternetDomainName.from("foo.com");

    assertEquals("www.foo.com", domain.child("www").toString());

    try {
      domain.child("www.");
      fail("www..google.com should have been invalid");
    } catch (IllegalArgumentException expected) {
      // Expected outcome
    }
  }

  public void testParentChild() {
    InternetDomainName origin = InternetDomainName.from("foo.com");
    InternetDomainName parent = origin.parent();
    assertEquals("com", parent.toString());

    // These would throw an exception if leniency were not preserved during parent() and child()
    // calls.
    InternetDomainName child = parent.child(LOTS_OF_DELTAS);
    child.child(LOTS_OF_DELTAS);
  }

  public void testValidTopPrivateDomain() {
    InternetDomainName googleDomain = InternetDomainName.from("google.com");

    assertEquals(googleDomain, googleDomain.topPrivateDomain());
    assertEquals(googleDomain, googleDomain.child("mail").topPrivateDomain());
    assertEquals(googleDomain, googleDomain.child("foo.bar").topPrivateDomain());
  }

  public void testInvalidTopPrivateDomain() {
    ImmutableSet<String> badCookieDomains =
        ImmutableSet.of("co.uk", "foo", "com");

    for (String domain : badCookieDomains) {
      try {
        InternetDomainName.from(domain).topPrivateDomain();
        fail(domain);
      } catch (IllegalStateException expected) {
      }
    }
  }

  public void testIsValid() {
    final Iterable<String> validCases = Iterables.concat(
        VALID_NAME, PS, NO_PS, NON_PS);
    final Iterable<String> invalidCases = Iterables.concat(
        INVALID_NAME, VALID_IP_ADDRS, INVALID_IP_ADDRS);

    for (String valid : validCases) {
      assertTrue(valid, InternetDomainName.isValid(valid));
    }

    for (String invalid : invalidCases) {
      assertFalse(invalid, InternetDomainName.isValid(invalid));
    }
  }

  public void testToString() {
    for (String inputName : SOMEWHERE_UNDER_PS) {
      InternetDomainName domain = InternetDomainName.from(inputName);

      /*
       * We would ordinarily use constants for the expected results, but
       * doing it by derivation allows us to reuse the test case definitions
       * used in other tests.
       */

      String expectedName = Ascii.toLowerCase(inputName);
      expectedName = expectedName.replaceAll("[\u3002\uFF0E\uFF61]", ".");

      if (expectedName.endsWith(".")) {
        expectedName = expectedName.substring(0, expectedName.length() - 1);
      }

      assertEquals(expectedName, domain.toString());
    }
  }

  public void testExclusion() {
    InternetDomainName domain = InternetDomainName.from("foo.teledata.mz");
    assertTrue(domain.hasPublicSuffix());
    assertEquals("mz", domain.publicSuffix().toString());

    // Behold the weirdness!
    assertFalse(domain.publicSuffix().isPublicSuffix());
  }

  public void testMultipleUnders() {
    // PSL has both *.uk and *.sch.uk; the latter should win.
    // See http://code.google.com/p/guava-libraries/issues/detail?id=1176

    InternetDomainName domain = InternetDomainName.from("www.essex.sch.uk");
    assertTrue(domain.hasPublicSuffix());
    assertEquals("essex.sch.uk", domain.publicSuffix().toString());
    assertEquals("www.essex.sch.uk", domain.topPrivateDomain().toString());
  }

  public void testEquality() {
    new EqualsTester()
        .addEqualityGroup(
            idn("google.com"), idn("google.com"), idn("GOOGLE.COM"))
        .addEqualityGroup(idn("www.google.com"))
        .addEqualityGroup(UNICODE_EXAMPLE)
        .addEqualityGroup(PUNYCODE_EXAMPLE)
        .testEquals();
  }

  private static InternetDomainName idn(String domain) {
    return InternetDomainName.from(domain);
  }

  @GwtIncompatible // NullPointerTester
  public void testNulls() {
    final NullPointerTester tester = new NullPointerTester();

    tester.testAllPublicStaticMethods(InternetDomainName.class);
    tester.testAllPublicInstanceMethods(InternetDomainName.from("google.com"));
  }
}