[Test] Add stream dash mpd url test

Author: Stypox

extractor/src/test/java/org/schabi/newpipe/extractor/services/BaseStreamExtractorTest.java

@@ -23,6 +23,7 @@ public interface BaseStreamExtractorTest extends BaseExtractorTest {
     void testAudioStreams() throws Exception;
     void testVideoStreams() throws Exception;
     void testSubtitles() throws Exception;
+    void testGetDashMpdUrl() throws Exception;
     void testFrames() throws Exception;
     void testHost() throws Exception;
     void testPrivacy() throws Exception;

extractor/src/test/java/org/schabi/newpipe/extractor/services/DefaultStreamExtractorTest.java

@@ -22,11 +22,11 @@
 import javax.annotation.Nullable;
 
 import static org.hamcrest.CoreMatchers.containsString;
+import static org.hamcrest.MatcherAssert.assertThat;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertThat;
 import static org.junit.Assert.assertTrue;
 import static org.schabi.newpipe.extractor.ExtractorAsserts.assertAtLeast;
 import static org.schabi.newpipe.extractor.ExtractorAsserts.assertEqualsOrderIndependent;
@@ -59,6 +59,7 @@ public abstract class DefaultStreamExtractorTest extends DefaultExtractorTest<St
     public boolean expectedHasVideoStreams() { return true; } // default: there are video streams
     public boolean expectedHasAudioStreams() { return true; } // default: there are audio streams
     public boolean expectedHasSubtitles() { return true; } // default: there are subtitles streams
+    @Nullable public String expectedDashMpdUrlContains() { return null; } // default: no dash mpd
     public boolean expectedHasFrames() { return true; } // default: there are frames
     public String expectedHost() { return ""; } // default: no host for centralized platforms
     public String expectedPrivacy() { return ""; } // default: no privacy policy available
@@ -306,6 +307,18 @@ public void testSubtitles() throws Exception {
         }
     }
 
+    @Override
+    public void testGetDashMpdUrl() throws Exception {
+        final String dashMpdUrl = extractor().getDashMpdUrl();
+        if (expectedDashMpdUrlContains() == null) {
+            assertNotNull(dashMpdUrl);
+            assertTrue(dashMpdUrl.isEmpty());
+        } else {
+            assertIsSecureUrl(dashMpdUrl);
+            assertThat(extractor().getDashMpdUrl(), containsString(expectedDashMpdUrlContains()));
+        }
+    }
+
     @Test
     @Override
     public void testFrames() throws Exception {

extractor/src/test/java/org/schabi/newpipe/extractor/services/youtube/stream/YoutubeStreamExtractorLivestreamTest.java

@@ -50,5 +50,6 @@ public static void setUp() throws Exception {
     @Override public long expectedLikeCountAtLeast() { return 825000; }
     @Override public long expectedDislikeCountAtLeast() { return 15600; }
     @Override public boolean expectedHasSubtitles() { return false; }
+    @Nullable @Override public String expectedDashMpdUrlContains() { return "https://manifest.googlevideo.com/api/manifest/dash/"; }
     @Override public boolean expectedHasFrames() { return false; }
 }