fix channel links in description

extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamExtractor.java

@@ -178,7 +178,8 @@ public class YoutubeStreamExtractor extends StreamExtractor {
                     // They refer to the youtube search. We do not handle them.
                     a.text(link);
 
-                } else if(redirectLink.toString().contains("watch?v=")) {
+                } else if(redirectLink.toString().contains("watch?v=")
+                        || redirectLink.toString().contains("https://www.youtube.com/")) {
                     // Another posibility is that this link is pointing to another video
                     // we need to put the redirectLink in here explicitly in order to add the domain part to the link.
                     a.text(redirectLink.toString());

extractor/src/test/java/org/schabi/newpipe/extractor/services/youtube/YoutubePlaylistExtractorTest.java

@@ -120,7 +120,7 @@ public class YoutubePlaylistExtractorTest {
         }
     }
 
-    public static class ImportantVideos implements BasePlaylistExtractorTest {
+    public static class HugePlaylist implements BasePlaylistExtractorTest {
         private static YoutubePlaylistExtractor extractor;
 
         @BeforeClass

extractor/src/test/java/org/schabi/newpipe/extractor/services/youtube/YoutubeStreamExtractorDASHTest.java

@@ -35,7 +35,7 @@ import static org.schabi.newpipe.extractor.ServiceList.YouTube;
 /**
  * Test for {@link StreamExtractor}
  */
-public class YoutubeStreamExtractorDASHText {
+public class YoutubeStreamExtractorDASHTest {
     private static StreamInfo info;
 
     @BeforeClass