code: /*
   * Copyright 2015 Google Inc. All rights reserved.
   *
   * 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 org.physical_web.collection;
  
  import static org.junit.Assert.*;
  
  import org.json.JSONObject;
  
  import org.junit.Before;
  import org.junit.Test;
  
  import org.skyscreamer.jsonassert.JSONAssert;
  
  /**
   * SimpleUrlDevice unit test class.
   */
  public class UrlDeviceTest {
    private static final String ID1 = "id1";
    private static final String ID2 = "id2";
    private static final String URL1 = "http://example.com";
    private static final String URL2 = "http://physical-web.org";
    private static final double RANK1 = 0.5d;
    private static final double RANK2 = 0.9d;
    private UrlDevice mUrlDevice1;
    private JSONObject jsonObject1;
  
    @Before
    public void setUp() {
      mUrlDevice1 = new UrlDevice.Builder(ID1, URL1)
          .addExtra("key", "value")
          .build();
      jsonObject1 = new JSONObject("{"
          + "    \"id\": \"" + ID1 + "\","
          + "    \"url\": \"" + URL1 + "\","
          + "    \"extra\": {"
          + "        \"key\": \"value\""
          + "    }"
          + "}");
    }
  
    @Test
    public void getIdReturnsId() {
      assertEquals(mUrlDevice1.getId(), ID1);
    }
  
    @Test
    public void getUrlReturnsUrl() {
      assertEquals(mUrlDevice1.getUrl(), URL1);
    }
  
    @Test
    public void jsonSerializeWorks() {
      JSONAssert.assertEquals(mUrlDevice1.jsonSerialize(), jsonObject1, true);
    }
  
    @Test
    public void jsonDeserializeWorks() {
      UrlDevice urlDevice = UrlDevice.jsonDeserialize(jsonObject1);
      assertNotNull(urlDevice);
      assertEquals(urlDevice.getId(), ID1);
      assertEquals(urlDevice.getUrl(), URL1);
    }
  
    @Test
    public void deviceIsEqualToItself() {
      assertEquals(mUrlDevice1, mUrlDevice1);
    }
  
    @Test
    public void alikeDevicesAreEqual() {
      UrlDevice urlDevice = new UrlDevice.Builder(ID1, URL1)
          .addExtra("key", "value")
          .build();
      assertEquals(mUrlDevice1, urlDevice);
    }
  
    @Test
    public void unalikeDevicesAreNotEqual() {
      UrlDevice urlDevice1 = new UrlDevice(ID1, URL1);
      UrlDevice urlDevice2 = new UrlDevice(ID1, URL2); // same id, different url
      UrlDevice urlDevice3 = new UrlDevice(ID2, URL1); // same url, different id
      assertNotEquals(urlDevice1, urlDevice2);
      assertNotEquals(urlDevice1, urlDevice3);
    }
  
    @Test
    public void compareDeviceToItselfReturnsZero() {
      assertEquals(mUrlDevice1.compareTo(mUrlDevice1), 0);
    }
  
    @Test
    public void compareDeviceToUnalikeDeviceReturnsNonZero() {
      UrlDevice urlDevice2 = new UrlDevice(ID2, URL1); // different device ID
      UrlDevice urlDevice3 = new UrlDevice(ID1, URL2); // different URL
      assertTrue(mUrlDevice1.compareTo(urlDevice2) < 0); // "id1" < "id2"
      assertTrue(urlDevice2.compareTo(mUrlDevice1) > 0);
      assertTrue(mUrlDevice1.compareTo(urlDevice3) < 0); // "example.com" < "physical-web.org"
      assertTrue(urlDevice3.compareTo(mUrlDevice1) > 0);
    }
  }
  