Run parser tests with robolectric

parser/media/build.gradle

@@ -9,4 +9,5 @@ dependencies {
     implementation "commons-io:commons-io:$commonsioVersion"
 
     testImplementation "junit:junit:$junitVersion"
+    testImplementation "org.robolectric:robolectric:$robolectricVersion"
 }

parser/media/src/test/java/de/danoeh/antennapod/parser/media/id3/ChapterReaderTest.java

@@ -5,6 +5,8 @@ import de.danoeh.antennapod.model.feed.EmbeddedChapterImage;
 import de.danoeh.antennapod.parser.media.id3.model.FrameHeader;
 import org.apache.commons.io.input.CountingInputStream;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
 
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
@@ -12,6 +14,7 @@ import java.util.List;
 
 import static org.junit.Assert.assertEquals;
 
+@RunWith(RobolectricTestRunner.class)
 public class ChapterReaderTest {
     private static final byte CHAPTER_WITHOUT_SUBFRAME_START_TIME = 23;
     private static final byte[] CHAPTER_WITHOUT_SUBFRAME = {

parser/media/src/test/java/de/danoeh/antennapod/parser/media/id3/Id3ReaderTest.java

@@ -4,6 +4,8 @@ import de.danoeh.antennapod.parser.media.id3.model.FrameHeader;
 import de.danoeh.antennapod.parser.media.id3.model.TagHeader;
 import org.apache.commons.io.input.CountingInputStream;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
@@ -14,6 +16,7 @@ import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 
+@RunWith(RobolectricTestRunner.class)
 public class Id3ReaderTest {
     @Test
     public void testReadString() throws IOException {

parser/media/src/test/java/de/danoeh/antennapod/parser/media/vorbis/VorbisCommentChapterReaderTest.java

@@ -2,6 +2,8 @@ package de.danoeh.antennapod.parser.media.vorbis;
 
 import de.danoeh.antennapod.model.feed.Chapter;
 import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.robolectric.RobolectricTestRunner;
 
 import java.io.IOException;
 import java.io.InputStream;
@@ -9,6 +11,7 @@ import java.util.List;
 
 import static org.junit.Assert.assertEquals;
 
+@RunWith(RobolectricTestRunner.class)
 public class VorbisCommentChapterReaderTest {
 
     @Test