add channel and strem extractor for mediaccc

This commit is contained in:
Christian Schabesberger 2018-12-23 19:41:18 +01:00
parent ef576341c8
commit 2148edc7d7
17 changed files with 575 additions and 69 deletions

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@ -38,5 +38,4 @@ public abstract class ChannelExtractor extends ListExtractor<StreamInfoItem> {
public abstract String getFeedUrl() throws ParsingException;
public abstract long getSubscriberCount() throws ParsingException;
public abstract String getDescription() throws ParsingException;
public abstract String[] getDonationLinks() throws ParsingException;
}

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@ -92,11 +92,6 @@ public class ChannelInfo extends ListInfo<StreamInfoItem> {
} catch (Exception e) {
info.addError(e);
}
try {
info.setDonationLinks(extractor.getDonationLinks());
} catch (Exception e) {
info.addError(e);
}
return info;
}

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@ -8,8 +8,12 @@ import org.schabi.newpipe.extractor.kiosk.KioskList;
import org.schabi.newpipe.extractor.linkhandler.*;
import org.schabi.newpipe.extractor.playlist.PlaylistExtractor;
import org.schabi.newpipe.extractor.search.SearchExtractor;
import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCConferenceExtractor;
import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCSearchExtractor;
import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCStreamExtractor;
import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCConferenceLinkHandlerFactory;
import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCSearchQueryHandlerFactory;
import org.schabi.newpipe.extractor.services.media_ccc.linkHandler.MediaCCCStreamLinkHandlerFactory;
import org.schabi.newpipe.extractor.stream.StreamExtractor;
import org.schabi.newpipe.extractor.subscription.SubscriptionExtractor;
import org.schabi.newpipe.extractor.utils.Localization;
@ -29,12 +33,12 @@ public class MediaCCCService extends StreamingService {
@Override
public LinkHandlerFactory getStreamLHFactory() {
return null;
return new MediaCCCStreamLinkHandlerFactory();
}
@Override
public ListLinkHandlerFactory getChannelLHFactory() {
return null;
return new MediaCCCConferenceLinkHandlerFactory();
}
@Override
@ -49,12 +53,12 @@ public class MediaCCCService extends StreamingService {
@Override
public StreamExtractor getStreamExtractor(LinkHandler linkHandler, Localization localization) {
return null;
return new MediaCCCStreamExtractor(this, linkHandler, localization);
}
@Override
public ChannelExtractor getChannelExtractor(ListLinkHandler linkHandler, Localization localization) {
return null;
return new MediaCCCConferenceExtractor(this, linkHandler, localization);
}
@Override

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@ -0,0 +1,94 @@
package org.schabi.newpipe.extractor.services.media_ccc.extractors;
import com.grack.nanojson.JsonArray;
import com.grack.nanojson.JsonObject;
import com.grack.nanojson.JsonParser;
import com.grack.nanojson.JsonParserException;
import org.schabi.newpipe.extractor.Downloader;
import org.schabi.newpipe.extractor.StreamingService;
import org.schabi.newpipe.extractor.channel.ChannelExtractor;
import org.schabi.newpipe.extractor.exceptions.ExtractionException;
import org.schabi.newpipe.extractor.exceptions.ParsingException;
import org.schabi.newpipe.extractor.linkhandler.ListLinkHandler;
import org.schabi.newpipe.extractor.services.media_ccc.extractors.infoItems.MediaCCCStreamInfoItemExtractor;
import org.schabi.newpipe.extractor.stream.StreamInfoItem;
import org.schabi.newpipe.extractor.stream.StreamInfoItemsCollector;
import org.schabi.newpipe.extractor.utils.Localization;
import javax.annotation.Nonnull;
import java.io.IOException;
public class MediaCCCConferenceExtractor extends ChannelExtractor {
private JsonObject conferenceData;
public MediaCCCConferenceExtractor(StreamingService service, ListLinkHandler linkHandler, Localization localization) {
super(service, linkHandler, localization);
}
@Override
public String getAvatarUrl() throws ParsingException {
return conferenceData.getString("logo_url");
}
@Override
public String getBannerUrl() throws ParsingException {
return conferenceData.getString("logo_url");
}
@Override
public String getFeedUrl() throws ParsingException {
return null;
}
@Override
public long getSubscriberCount() throws ParsingException {
return -1;
}
@Override
public String getDescription() throws ParsingException {
return null;
}
@Nonnull
@Override
public InfoItemsPage<StreamInfoItem> getInitialPage() throws IOException, ExtractionException {
StreamInfoItemsCollector collector = new StreamInfoItemsCollector(getServiceId());
JsonArray events = conferenceData.getArray("events");
for(int i = 0; i < events.size(); i++) {
collector.commit(new MediaCCCStreamInfoItemExtractor(events.getObject(i)));
}
return new InfoItemsPage<>(collector, null);
}
@Override
public String getNextPageUrl() throws IOException, ExtractionException {
return null;
}
@Override
public InfoItemsPage<StreamInfoItem> getPage(String pageUrl) throws IOException, ExtractionException {
return null;
}
@Override
public void onFetchPage(@Nonnull Downloader downloader) throws IOException, ExtractionException {
try {
conferenceData = JsonParser.object().from(downloader.download(getUrl()));
} catch (JsonParserException jpe) {
throw new ExtractionException("Could not parse json returnd by url: " + getUrl());
}
}
@Nonnull
@Override
public String getName() throws ParsingException {
return conferenceData.getString("title");
}
@Override
public String getOriginalUrl() throws ParsingException {
return "https://media.ccc.de/c/" + conferenceData.getString("acronym");
}
}

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@ -0,0 +1,222 @@
package org.schabi.newpipe.extractor.services.media_ccc.extractors;
import com.grack.nanojson.JsonArray;
import com.grack.nanojson.JsonObject;
import com.grack.nanojson.JsonParser;
import com.grack.nanojson.JsonParserException;
import org.schabi.newpipe.extractor.Downloader;
import org.schabi.newpipe.extractor.MediaFormat;
import org.schabi.newpipe.extractor.StreamingService;
import org.schabi.newpipe.extractor.exceptions.ExtractionException;
import org.schabi.newpipe.extractor.exceptions.ParsingException;
import org.schabi.newpipe.extractor.linkhandler.LinkHandler;
import org.schabi.newpipe.extractor.stream.*;
import org.schabi.newpipe.extractor.utils.Localization;
import org.schabi.newpipe.extractor.utils.Parser;
import javax.annotation.Nonnull;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class MediaCCCStreamExtractor extends StreamExtractor {
private JsonObject data;
private JsonObject conferenceData;
public MediaCCCStreamExtractor(StreamingService service, LinkHandler linkHandler, Localization localization) {
super(service, linkHandler, localization);
}
@Nonnull
@Override
public String getUploadDate() throws ParsingException {
return data.getString("release_date");
}
@Nonnull
@Override
public String getThumbnailUrl() throws ParsingException {
return data.getString("thumb_url");
}
@Nonnull
@Override
public String getDescription() throws ParsingException {
return data.getString("description");
}
@Override
public int getAgeLimit() throws ParsingException {
return 0;
}
@Override
public long getLength() throws ParsingException {
return data.getInt("length");
}
@Override
public long getTimeStamp() throws ParsingException {
return 0;
}
@Override
public long getViewCount() throws ParsingException {
return data.getInt("view_count");
}
@Override
public long getLikeCount() throws ParsingException {
return -1;
}
@Override
public long getDislikeCount() throws ParsingException {
return -1;
}
@Nonnull
@Override
public String getUploaderUrl() throws ParsingException {
return data.getString("conference_url");
}
@Nonnull
@Override
public String getUploaderName() throws ParsingException {
return data.getString("conference_url")
.replace("https://api.media.ccc.de/public/conferences/", "");
}
@Nonnull
@Override
public String getUploaderAvatarUrl() throws ParsingException {
return conferenceData.getString("logo_url");
}
@Nonnull
@Override
public String getDashMpdUrl() throws ParsingException {
return null;
}
@Nonnull
@Override
public String getHlsUrl() throws ParsingException {
return null;
}
@Override
public List<AudioStream> getAudioStreams() throws IOException, ExtractionException {
final JsonArray recordings = data.getArray("recordings");
final List<AudioStream> audioStreams = new ArrayList<>();
for(int i = 0; i < recordings.size(); i++) {
final JsonObject recording = recordings.getObject(i);
final String mimeType = recording.getString("mime_type");
if(mimeType.startsWith("audio")) {
//first we need to resolve the actual video data from CDN
final MediaFormat mediaFormat;
if(mimeType.endsWith("opus")) {
mediaFormat = MediaFormat.OPUS;
} else if(mimeType.endsWith("mpeg")) {
mediaFormat = MediaFormat.MP3;
} else {
throw new ExtractionException("Unknown media format: " + mimeType);
}
audioStreams.add(new AudioStream(recording.getString("recording_url"), mediaFormat, -1));
}
}
return audioStreams;
}
@Override
public List<VideoStream> getVideoStreams() throws IOException, ExtractionException {
final JsonArray recordings = data.getArray("recordings");
final List<VideoStream> videoStreams = new ArrayList<>();
for(int i = 0; i < recordings.size(); i++) {
final JsonObject recording = recordings.getObject(i);
final String mimeType = recording.getString("mime_type");
if(mimeType.startsWith("video")) {
//first we need to resolve the actual video data from CDN
final MediaFormat mediaFormat;
if(mimeType.endsWith("webm")) {
mediaFormat = MediaFormat.WEBM;
} else if(mimeType.endsWith("mp4")) {
mediaFormat = MediaFormat.MPEG_4;
} else {
throw new ExtractionException("Unknown media format: " + mimeType);
}
videoStreams.add(new VideoStream(recording.getString("recording_url"),
mediaFormat,
Integer.toString(recording.getInt("height"))));
}
}
return videoStreams;
}
@Override
public List<VideoStream> getVideoOnlyStreams() throws IOException, ExtractionException {
return null;
}
@Nonnull
@Override
public List<SubtitlesStream> getSubtitlesDefault() throws IOException, ExtractionException {
return null;
}
@Nonnull
@Override
public List<SubtitlesStream> getSubtitles(MediaFormat format) throws IOException, ExtractionException {
return null;
}
@Override
public StreamType getStreamType() throws ParsingException {
return StreamType.VIDEO_STREAM;
}
@Override
public StreamInfoItem getNextStream() throws IOException, ExtractionException {
return null;
}
@Override
public StreamInfoItemsCollector getRelatedStreams() throws IOException, ExtractionException {
return null;
}
@Override
public String getErrorMessage() {
return null;
}
@Override
public void onFetchPage(@Nonnull Downloader downloader) throws IOException, ExtractionException {
try {
data = JsonParser.object().from(
downloader.download(getLinkHandler().getUrl()));
conferenceData = JsonParser.object()
.from(downloader.download(getUploaderUrl()));
} catch (JsonParserException jpe) {
throw new ExtractionException("Could not parse json returned by url: " + getLinkHandler().getUrl(), jpe);
}
}
@Nonnull
@Override
public String getName() throws ParsingException {
return data.getString("title");
}
@Override
public String getOriginalUrl() throws ParsingException {
return data.getString("frontend_link");
}
}

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@ -0,0 +1,21 @@
package org.schabi.newpipe.extractor.services.media_ccc.extractors;
import org.schabi.newpipe.extractor.SuggestionExtractor;
import org.schabi.newpipe.extractor.exceptions.ExtractionException;
import org.schabi.newpipe.extractor.utils.Localization;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
public class MediaCCCSuggestionExtractor extends SuggestionExtractor {
public MediaCCCSuggestionExtractor(int serviceId, Localization localization) {
super(serviceId, localization);
}
@Override
public List<String> suggestionList(String query) throws IOException, ExtractionException {
return new ArrayList<>(0);
}
}

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@ -62,6 +62,6 @@ public class MediaCCCStreamInfoItemExtractor implements StreamInfoItemExtractor
@Override
public String getThumbnailUrl() throws ParsingException {
return event.getString("thumbnails_url");
return event.getString("thumb_url");
}
}

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@ -0,0 +1,32 @@
package org.schabi.newpipe.extractor.services.media_ccc.linkHandler;
import org.schabi.newpipe.extractor.exceptions.ParsingException;
import org.schabi.newpipe.extractor.linkhandler.ListLinkHandlerFactory;
import org.schabi.newpipe.extractor.utils.Parser;
import java.util.List;
public class MediaCCCConferenceLinkHandlerFactory extends ListLinkHandlerFactory {
@Override
public String getUrl(String id, List<String> contentFilter, String sortFilter) throws ParsingException {
return "https://api.media.ccc.de/public/conferences/" + id;
}
@Override
public String getId(String url) throws ParsingException {
if(url.startsWith("https://api.media.ccc.de/public/conferences/")) {
return url.replace("https://api.media.ccc.de/public/conferences/", "");
} else if(url.startsWith("https://media.ccc.de/c/")) {
return Parser.matchGroup1("https://media.ccc.de/c/([^?#]*)", url);
} else {
throw new ParsingException("Could not get id from url: " + url);
}
}
@Override
public boolean onAcceptUrl(String url) throws ParsingException {
return url.startsWith("https://api.media.ccc.de/public/conferences/")
|| url.startsWith("https://media.ccc.de/c/");
}
}

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@ -11,12 +11,12 @@ public class MediaCCCSearchQueryHandlerFactory extends SearchQueryHandlerFactory
@Override
public String[] getAvailableContentFilter() {
return null;
return new String[0];
}
@Override
public String[] getAvailableSortFilter() {
return null;
return new String[0];
}
@Override

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@ -0,0 +1,27 @@
package org.schabi.newpipe.extractor.services.media_ccc.linkHandler;
import org.schabi.newpipe.extractor.exceptions.ParsingException;
import org.schabi.newpipe.extractor.linkhandler.LinkHandlerFactory;
public class MediaCCCStreamLinkHandlerFactory extends LinkHandlerFactory {
@Override
public String getId(String url) throws ParsingException {
if(url.startsWith("https://api.media.ccc.de/public/events/") &&
!url.contains("?q=")) {
return url.replace("https://api.media.ccc.de/public/events/", "");
}
throw new ParsingException("Could not get id from url: " + url);
}
@Override
public String getUrl(String id) throws ParsingException {
return "https://api.media.ccc.de/public/events/" + id;
}
@Override
public boolean onAcceptUrl(String url) throws ParsingException {
return url.startsWith("https://api.media.ccc.de/public/events/") &&
!url.contains("?q=");
}
}

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@ -127,9 +127,4 @@ public class SoundcloudChannelExtractor extends ChannelExtractor {
return new InfoItemsPage<>(collector, nextPageUrl);
}
@Override
public String[] getDonationLinks() {
return new String[0];
}
}

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@ -189,29 +189,6 @@ public class YoutubeChannelExtractor extends ChannelExtractor {
return new InfoItemsPage<>(collector, getNextPageUrlFromAjaxPage(ajaxJson, pageUrl));
}
@Override
public String[] getDonationLinks() throws ParsingException {
try {
ArrayList<String> links = new ArrayList<>();
Element linkHolder = doc.select("div[id=\"header-links\"]").first();
if(linkHolder == null) {
// this occures if no links are embeded into the channel
return new String[0];
}
for(Element a : linkHolder.select("a")) {
String link = a.attr("abs:href");
if(DonationLinkHelper.getDonatoinServiceByLink(link) != DonationLinkHelper.DonationService.NO_DONATION) {
links.add(link);
}
}
String[] retLinks = new String[links.size()];
retLinks = links.toArray(retLinks);
return retLinks;
} catch (Exception e) {
throw new ParsingException("Could not get donation links", e);
}
}
private String getNextPageUrlFromAjaxPage(final JsonObject ajaxJson, final String pageUrl)
throws ParsingException {
String loadMoreHtmlDataRaw = ajaxJson.getString("load_more_widget_html");

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@ -0,0 +1,51 @@
package org.schabi.newpipe.extractor.services.media_ccc;
import org.junit.BeforeClass;
import org.junit.Test;
import org.schabi.newpipe.Downloader;
import org.schabi.newpipe.extractor.NewPipe;
import org.schabi.newpipe.extractor.channel.ChannelExtractor;
import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCConferenceExtractor;
import org.schabi.newpipe.extractor.utils.Localization;
import static junit.framework.TestCase.assertEquals;
import static org.schabi.newpipe.extractor.ServiceList.MediaCCC;
/**
* Test {@link MediaCCCConferenceExtractor}
*/
public class MediaCCCConferenceExtractorTest {
private static ChannelExtractor extractor;
@BeforeClass
public static void setUpClass() throws Exception {
NewPipe.init(Downloader.getInstance(), new Localization("en", "en_GB"));
extractor = MediaCCC.getChannelExtractor("https://api.media.ccc.de/public/conferences/froscon2017");
extractor.fetchPage();
}
@Test
public void testName() throws Exception {
assertEquals("FrOSCon 2017", extractor.getName());
}
@Test
public void testGetUrl() throws Exception {
assertEquals("https://api.media.ccc.de/public/conferences/froscon2017", extractor.getUrl());
}
@Test
public void testGetOriginalUrl() throws Exception {
assertEquals("https://media.ccc.de/c/froscon2017", extractor.getOriginalUrl());
}
@Test
public void testGetThumbnailUrl() throws Exception {
assertEquals("https://static.media.ccc.de/media/events/froscon/2017/logo.png", extractor.getAvatarUrl());
}
@Test
public void testGetInitalPage() throws Exception {
assertEquals(97,extractor.getInitialPage().getItems().size());
}
}

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@ -10,7 +10,9 @@ import org.schabi.newpipe.extractor.search.SearchExtractor;
import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCSearchExtractor;
import org.schabi.newpipe.extractor.utils.Localization;
import static junit.framework.TestCase.assertEquals;
import static junit.framework.TestCase.assertTrue;
import static org.junit.Assert.assertFalse;
import static org.schabi.newpipe.extractor.ServiceList.MediaCCC;
/**
@ -33,4 +35,27 @@ public class MediaCCCSearchExtractorTest {
assertTrue(Integer.toString(itemsPage.getItems().size()),
itemsPage.getItems().size() >= 25);
}
@Test
public void testServiceId() throws Exception {
assertEquals(2, extractor.getServiceId());
}
@Test
public void testName() throws Exception {
assertFalse(itemsPage.getItems().get(0).getName(), itemsPage.getItems().get(0).getName().isEmpty());
}
@Test
public void testUrl() throws Exception {
assertTrue("Url should start with: https://api.media.ccc.de/public/events/",
itemsPage.getItems().get(0).getUrl().startsWith("https://api.media.ccc.de/public/events/"));
}
@Test
public void testThumbnailUrl() throws Exception {
assertTrue(itemsPage.getItems().get(0).getThumbnailUrl(),
itemsPage.getItems().get(0).getThumbnailUrl().startsWith("https://static.media.ccc.de/media/")
&& itemsPage.getItems().get(0).getThumbnailUrl().endsWith(".jpg"));
}
}

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@ -0,0 +1,83 @@
package org.schabi.newpipe.extractor.services.media_ccc;
import org.junit.BeforeClass;
import org.junit.Test;
import org.schabi.newpipe.Downloader;
import org.schabi.newpipe.extractor.NewPipe;
import org.schabi.newpipe.extractor.services.BaseExtractorTest;
import org.schabi.newpipe.extractor.stream.StreamExtractor;
import org.schabi.newpipe.extractor.services.media_ccc.extractors.MediaCCCStreamExtractor;
import org.schabi.newpipe.extractor.utils.Localization;
import static junit.framework.TestCase.assertEquals;
import static org.schabi.newpipe.extractor.ServiceList.MediaCCC;
/**
* Test {@link MediaCCCStreamExtractor}
*/
public class MediaCCCStreamExtractorTest implements BaseExtractorTest {
private static StreamExtractor extractor;
@BeforeClass
public static void setUpClass() throws Exception {
NewPipe.init(Downloader.getInstance(), new Localization("GB", "en"));
extractor = MediaCCC.getStreamExtractor("https://api.media.ccc.de/public/events/8afc16c2-d76a-53f6-85e4-90494665835d");
extractor.fetchPage();
}
@Override
public void testServiceId() throws Exception {
assertEquals(2, extractor.getServiceId());
}
@Override
public void testName() throws Exception {
assertEquals("tmux - Warum ein schwarzes Fenster am Bildschirm reicht", extractor.getName());
}
@Override
public void testId() throws Exception {
assertEquals("", extractor.getId());
}
@Override
public void testUrl() throws Exception {
assertEquals("", extractor.getUrl());
}
@Override
public void testOriginalUrl() throws Exception {
assertEquals("", extractor.getOriginalUrl());
}
@Test
public void testThumbnail() throws Exception {
assertEquals("https://static.media.ccc.de/media/events/gpn/gpn18/105-hd.jpg", extractor.getThumbnailUrl());
}
@Test
public void testUploaderName() throws Exception {
assertEquals("gpn18", extractor.getUploaderName());
}
@Test
public void testUploaderUrl() throws Exception {
assertEquals("https://api.media.ccc.de/public/conferences/gpn18", extractor.getUploaderUrl());
}
@Test
public void testUploaderAvatarUrl() throws Exception {
assertEquals("https://static.media.ccc.de/media/events/gpn/gpn18/logo.png", extractor.getUploaderAvatarUrl());
}
@Test
public void testVideoStreams() throws Exception {
assertEquals(4, extractor.getVideoStreams().size());
}
@Test
public void testAudioStreams() throws Exception {
assertEquals(2, extractor.getAudioStreams().size());
}
}

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@ -106,13 +106,6 @@ public class YoutubeChannelExtractorTest {
public void testSubscriberCount() throws Exception {
assertTrue("Wrong subscriber count", extractor.getSubscriberCount() >= 0);
}
@Test
public void testChannelDonation() throws Exception {
// this needs to be ignored since wed have to upgrade channel extractor to the new yt interface
// in order to make this work
assertTrue(extractor.getDonationLinks().length == 0);
}
}
// Youtube RED/Premium ad blocking test
@ -204,12 +197,6 @@ public class YoutubeChannelExtractorTest {
assertTrue("Wrong subscriber count", extractor.getSubscriberCount() >= 0);
}
@Test
public void testChannelDonation() throws Exception {
// this needs to be ignored since wed have to upgrade channel extractor to the new yt interface
// in order to make this work
assertTrue(extractor.getDonationLinks().length == 0);
}
}
public static class Kurzgesagt implements BaseChannelExtractorTest {
@ -312,11 +299,6 @@ public class YoutubeChannelExtractorTest {
public void testSubscriberCount() throws Exception {
assertTrue("Wrong subscriber count", extractor.getSubscriberCount() >= 5e6);
}
@Test
public void testChannelDonation() throws Exception {
assertTrue(extractor.getDonationLinks().length == 1);
}
}
public static class CaptainDisillusion implements BaseChannelExtractorTest {
@ -501,11 +483,6 @@ public class YoutubeChannelExtractorTest {
public void testSubscriberCount() throws Exception {
assertTrue("Wrong subscriber count", extractor.getSubscriberCount() >= 50);
}
@Test
public void testChannelDonation() throws Exception {
assertTrue(extractor.getDonationLinks().length == 0);
}
}
};

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@ -6,6 +6,7 @@ import org.schabi.newpipe.Downloader;
import org.schabi.newpipe.extractor.InfoItem;
import org.schabi.newpipe.extractor.ListExtractor;
import org.schabi.newpipe.extractor.NewPipe;
import org.schabi.newpipe.extractor.channel.ChannelExtractor;
import org.schabi.newpipe.extractor.channel.ChannelInfoItem;
import org.schabi.newpipe.extractor.services.youtube.extractors.YoutubeSearchExtractor;
import org.schabi.newpipe.extractor.stream.StreamInfoItem;
@ -63,13 +64,16 @@ public class YoutubeSearchExtractorDefaultTest extends YoutubeSearchExtractorBas
@Test
public void testResultList_FirstElement() {
InfoItem firstInfoItem = itemsPage.getItems().get(0);
if(! (firstInfoItem instanceof ChannelInfoItem))
firstInfoItem = itemsPage.getItems().get(1);
InfoItem secondInfoItem = itemsPage.getItems().get(1);
InfoItem channelItem = firstInfoItem instanceof ChannelInfoItem ? firstInfoItem
: secondInfoItem;
// The channel should be the first item
assertTrue(firstInfoItem instanceof ChannelInfoItem);
assertEquals("name", "PewDiePie", firstInfoItem.getName());
assertEquals("url","https://www.youtube.com/user/PewDiePie", firstInfoItem.getUrl());
assertTrue((firstInfoItem instanceof ChannelInfoItem)
|| (secondInfoItem instanceof ChannelInfoItem));
assertEquals("name", "PewDiePie", channelItem.getName());
assertEquals("url","https://www.youtube.com/user/PewDiePie", channelItem.getUrl());
}
@Test