src/test/java/net/pterodactylus/sone/template/ImageLinkFilterTest.java

   1 package net.pterodactylus.sone.template;
   2
   3 import static org.hamcrest.MatcherAssert.assertThat;
   4 import static org.hamcrest.Matchers.containsString;
   5 import static org.hamcrest.Matchers.is;
   6 import static org.hamcrest.Matchers.nullValue;
   7 import static org.mockito.Mockito.mock;
   8 import static org.mockito.Mockito.when;
   9
  10 import net.pterodactylus.sone.core.Core;
  11 import net.pterodactylus.sone.data.Image;
  12 import net.pterodactylus.util.template.HtmlFilter;
  13 import net.pterodactylus.util.template.TemplateContext;
  14 import net.pterodactylus.util.template.TemplateContextFactory;
  15
  16 import com.google.common.collect.ImmutableMap;
  17 import org.hamcrest.Matchers;
  18 import org.jsoup.Jsoup;
  19 import org.jsoup.nodes.Document;
  20 import org.jsoup.nodes.Element;
  21 import org.junit.Before;
  22 import org.junit.Test;
  23
  24 /**
  25  * Unit test for {@link ImageLinkFilterTest}.
  26  *
  27  * @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
  28  */
  29 public class ImageLinkFilterTest {
  30
  31         private final Core core = mock(Core.class);
  32         private final TemplateContextFactory templateContextFactory = new TemplateContextFactory();
  33         private final ImageLinkFilter imageLinkFilter = new ImageLinkFilter(core, templateContextFactory);
  34         private final TemplateContext templateContext = null;
  35         private final Image image = mock(Image.class);
  36
  37         @Before
  38         public void setupTemplateContextFactory() {
  39                 templateContextFactory.addFilter("html", new HtmlFilter());
  40         }
  41
  42         @Before
  43         public void setupCore() {
  44                 when(core.getImage("image-id", false)).thenReturn(image);
  45         }
  46
  47         @Before
  48         public void setupImage() {
  49                 when(image.getId()).thenReturn("image-id");
  50                 when(image.getKey()).thenReturn("image-key");
  51                 when(image.isInserted()).thenReturn(true);
  52                 when(image.getWidth()).thenReturn(640);
  53                 when(image.getHeight()).thenReturn(270);
  54                 when(image.getTitle()).thenReturn("image title");
  55                 when(image.getDescription()).thenReturn("image description");
  56         }
  57
  58         @Test
  59         public void imageLinkIsGeneratedCorrectlyForNotInsertedImages() {
  60                 when(image.isInserted()).thenReturn(false);
  61                 String result = String.valueOf(imageLinkFilter.format(templateContext, image, ImmutableMap.<String, Object>of()));
  62                 Element imageElement = getSingleElement(result);
  63                 assertThat(imageElement.attr("class"), is(""));
  64                 assertThat(imageElement.attr("src"), is("getImage.html?image=image-id"));
  65                 assertThat(imageElement.attr("title"), is("image title"));
  66                 assertThat(imageElement.attr("alt"), is("image description"));
  67                 assertThat(imageElement.attr("width"), is("640"));
  68                 assertThat(imageElement.attr("height"), is("270"));
  69         }
  70
  71         @Test
  72         public void imageLinkIsGeneratedCorrectlyForInsertedImages() {
  73                 String result = String.valueOf(imageLinkFilter.format(templateContext, image, ImmutableMap.<String, Object>of()));
  74                 Element imageElement = getSingleElement(result);
  75                 assertThat(imageElement.attr("class"), is(""));
  76                 assertThat(imageElement.attr("src"), is("/image-key"));
  77                 assertThat(imageElement.attr("title"), is("image title"));
  78                 assertThat(imageElement.attr("alt"), is("image description"));
  79                 assertThat(imageElement.attr("width"), is("640"));
  80                 assertThat(imageElement.attr("height"), is("270"));
  81         }
  82
  83         @Test
  84         public void imageTitleAndDescriptionAreOverriddenCorrectly() {
  85                 String result = String.valueOf(imageLinkFilter.format(templateContext, image, ImmutableMap.<String, Object>of("title", "Test Title")));
  86                 Element imageElement = getSingleElement(result);
  87                 assertThat(imageElement.attr("title"), is("Test Title"));
  88                 assertThat(imageElement.attr("alt"), is("Test Title"));
  89         }
  90
  91         @Test
  92         public void imageIsScaledByWidthCorrectly() {
  93                 String result = String.valueOf(imageLinkFilter.format(templateContext, image, ImmutableMap.<String, Object>of("max-width", "320")));
  94                 Element imageElement = getSingleElement(result);
  95                 assertThat(imageElement.attr("width"), is("320"));
  96                 assertThat(imageElement.attr("height"), is("135"));
  97         }
  98
  99         @Test
 100         public void imageIsScaledByHeightCorrectly() {
 101                 String result = String.valueOf(imageLinkFilter.format(templateContext, image, ImmutableMap.<String, Object>of("max-height", "135")));
 102                 Element imageElement = getSingleElement(result);
 103                 assertThat(imageElement.attr("width"), is("320"));
 104                 assertThat(imageElement.attr("height"), is("135"));
 105         }
 106
 107         @Test
 108         public void wideImageIsEnlargedCorrectly() {
 109                 String result = String.valueOf(imageLinkFilter.format(templateContext, image,
 110                                 ImmutableMap.<String, Object>of("mode", "enlarge", "max-width", "100", "max-height", "100")));
 111                 Element imageElement = getSingleElement(result);
 112                 assertThat(imageElement.attr("width"), is("237"));
 113                 assertThat(imageElement.attr("height"), is("100"));
 114                 assertThat(imageElement.attr("style"), containsString("left: -68px"));
 115                 assertThat(imageElement.attr("style"), containsString("top: 0px"));
 116         }
 117
 118         @Test
 119         public void highImageIsEnlargedCorrectly() {
 120                 when(image.getWidth()).thenReturn(270);
 121                 when(image.getHeight()).thenReturn(640);
 122                 String result = String.valueOf(imageLinkFilter.format(templateContext, image,
 123                                 ImmutableMap.<String, Object>of("mode", "enlarge", "max-width", "100", "max-height", "100")));
 124                 Element imageElement = getSingleElement(result);
 125                 assertThat(imageElement.attr("width"), is("100"));
 126                 assertThat(imageElement.attr("height"), is("237"));
 127                 assertThat(imageElement.attr("style"), containsString("left: 0px"));
 128                 assertThat(imageElement.attr("style"), containsString("top: -68px"));
 129         }
 130
 131         @Test
 132         public void nullImageIsReturnedAsNull() {
 133                 assertThat(imageLinkFilter.format(templateContext, null, null), nullValue());
 134         }
 135
 136         @Test
 137         public void stringIsUsedToLoadImageFromCore() {
 138                 String result = String.valueOf(imageLinkFilter.format(templateContext, "image-id", ImmutableMap.<String, Object>of()));
 139                 Element imageElement = getSingleElement(result);
 140                 assertThat(imageElement.attr("class"), is(""));
 141                 assertThat(imageElement.attr("src"), is("/image-key"));
 142                 assertThat(imageElement.attr("title"), is("image title"));
 143                 assertThat(imageElement.attr("alt"), is("image description"));
 144                 assertThat(imageElement.attr("width"), is("640"));
 145                 assertThat(imageElement.attr("height"), is("270"));
 146         }
 147
 148         private Element getSingleElement(String result) {
 149                 Document document = Jsoup.parseBodyFragment(result);
 150                 assertThatBodyHasASingleElement(document);
 151                 return getSingleElement(document);
 152         }
 153
 154         private void assertThatBodyHasASingleElement(Document document) {
 155                 assertThat(document.body().select("> *"), Matchers.hasSize(1));
 156         }
 157
 158         private Element getSingleElement(Document document) {
 159                 return document.body().select("> *").get(0);
 160         }
 161
 162 }