From a87c505380ee9f4ce0247a8636a78881cc622a58 Mon Sep 17 00:00:00 2001 From: Herbert Reiter <46045854+damoasda@users.noreply.github.com> Date: Sat, 23 Jan 2021 23:12:01 +0100 Subject: [PATCH] Run DbReaderTest etc. with Robolectric --- .../core/storage/DbCleanupTests.java | 97 +++++++++------- .../storage/DbQueueCleanupAlgorithmTest.java | 21 ++-- .../antennapod/core/storage/DbReaderTest.java | 105 ++++++++++-------- .../antennapod/core/storage/DbTestUtils.java | 6 +- 4 files changed, 128 insertions(+), 101 deletions(-) rename app/src/androidTest/java/de/test/antennapod/storage/DBCleanupTests.java => core/src/test/java/de/danoeh/antennapod/core/storage/DbCleanupTests.java (71%) rename app/src/androidTest/java/de/test/antennapod/storage/DBQueueCleanupAlgorithmTest.java => core/src/test/java/de/danoeh/antennapod/core/storage/DbQueueCleanupAlgorithmTest.java (70%) rename app/src/androidTest/java/de/test/antennapod/storage/DBReaderTest.java => core/src/test/java/de/danoeh/antennapod/core/storage/DbReaderTest.java (83%) rename app/src/androidTest/java/de/test/antennapod/storage/DBTestUtils.java => core/src/test/java/de/danoeh/antennapod/core/storage/DbTestUtils.java (95%) diff --git a/app/src/androidTest/java/de/test/antennapod/storage/DBCleanupTests.java b/core/src/test/java/de/danoeh/antennapod/core/storage/DbCleanupTests.java similarity index 71% rename from app/src/androidTest/java/de/test/antennapod/storage/DBCleanupTests.java rename to core/src/test/java/de/danoeh/antennapod/core/storage/DbCleanupTests.java index 339d3cea9..13d24adc1 100644 --- a/app/src/androidTest/java/de/test/antennapod/storage/DBCleanupTests.java +++ b/core/src/test/java/de/danoeh/antennapod/core/storage/DbCleanupTests.java @@ -1,5 +1,6 @@ -package de.test.antennapod.storage; +package de.danoeh.antennapod.core.storage; +import android.app.Application; import android.content.Context; import android.content.SharedPreferences; import androidx.preference.PreferenceManager; @@ -11,27 +12,34 @@ import java.util.Date; import java.util.List; import androidx.test.platform.app.InstrumentationRegistry; -import androidx.test.filters.SmallTest; + +import de.danoeh.antennapod.core.ApplicationCallbacks; +import de.danoeh.antennapod.core.ClientConfig; import de.danoeh.antennapod.core.feed.Feed; import de.danoeh.antennapod.core.feed.FeedItem; import de.danoeh.antennapod.core.feed.FeedMedia; +import de.danoeh.antennapod.core.preferences.PlaybackPreferences; import de.danoeh.antennapod.core.preferences.UserPreferences; -import de.danoeh.antennapod.core.storage.DBTasks; -import de.danoeh.antennapod.core.storage.PodDBAdapter; + import org.junit.After; import org.junit.Before; import org.junit.Test; +import org.junit.runner.RunWith; +import org.robolectric.RobolectricTestRunner; -import static de.test.antennapod.storage.DBTestUtils.saveFeedlist; +import static de.danoeh.antennapod.core.storage.DbTestUtils.saveFeedlist; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertNotNull; import static org.junit.Assert.assertTrue; +import static org.mockito.Mockito.mock; +import static org.mockito.Mockito.when; /** - * Test class for DBTasks + * Test class for DBTasks. */ -@SmallTest -public class DBCleanupTests { +@RunWith(RobolectricTestRunner.class) +public class DbCleanupTests { + static final int EPISODE_CACHE_SIZE = 5; private int cleanupAlgorithm; @@ -39,7 +47,7 @@ public class DBCleanupTests { private File destFolder; - public DBCleanupTests() { + public DbCleanupTests() { setCleanupAlgorithm(UserPreferences.EPISODE_CLEANUP_DEFAULT); } @@ -47,24 +55,11 @@ public class DBCleanupTests { this.cleanupAlgorithm = cleanupAlgorithm; } - @After - public void tearDown() throws Exception { - assertTrue(PodDBAdapter.deleteDatabase()); - - cleanupDestFolder(destFolder); - assertTrue(destFolder.delete()); - } - - private void cleanupDestFolder(File destFolder) { - for (File f : destFolder.listFiles()) { - assertTrue(f.delete()); - } - } - @Before - public void setUp() throws Exception { + public void setUp() { context = InstrumentationRegistry.getInstrumentation().getTargetContext(); - destFolder = new File(context.getCacheDir(), "DDCleanupTests"); + destFolder = new File(context.getCacheDir(), "DbCleanupTests"); + //noinspection ResultOfMethodCallIgnored destFolder.mkdir(); cleanupDestFolder(destFolder); assertNotNull(destFolder); @@ -78,24 +73,46 @@ public class DBCleanupTests { adapter.open(); adapter.close(); - SharedPreferences.Editor prefEdit = PreferenceManager.getDefaultSharedPreferences(context.getApplicationContext()).edit(); + SharedPreferences.Editor prefEdit = PreferenceManager + .getDefaultSharedPreferences(context.getApplicationContext()).edit(); prefEdit.putString(UserPreferences.PREF_EPISODE_CACHE_SIZE, Integer.toString(EPISODE_CACHE_SIZE)); prefEdit.putString(UserPreferences.PREF_EPISODE_CLEANUP, Integer.toString(cleanupAlgorithm)); prefEdit.putBoolean(UserPreferences.PREF_ENABLE_AUTODL, true); prefEdit.commit(); UserPreferences.init(context); + PlaybackPreferences.init(context); + + Application app = (Application) context; + ClientConfig.applicationCallbacks = mock(ApplicationCallbacks.class); + when(ClientConfig.applicationCallbacks.getApplicationInstance()).thenReturn(app); + } + + @After + public void tearDown() { + cleanupDestFolder(destFolder); + assertTrue(destFolder.delete()); + + DBWriter.tearDownTests(); + PodDBAdapter.tearDownTests(); + } + + private void cleanupDestFolder(File destFolder) { + //noinspection ConstantConditions + for (File f : destFolder.listFiles()) { + assertTrue(f.delete()); + } } @Test public void testPerformAutoCleanupShouldDelete() throws IOException { - final int NUM_ITEMS = EPISODE_CACHE_SIZE * 2; + final int numItems = EPISODE_CACHE_SIZE * 2; Feed feed = new Feed("url", null, "title"); List items = new ArrayList<>(); feed.setItems(items); List files = new ArrayList<>(); - populateItems(NUM_ITEMS, feed, items, files, FeedItem.PLAYED, false, false); + populateItems(numItems, feed, items, files, FeedItem.PLAYED, false, false); DBTasks.performAutoCleanup(context); for (int i = 0; i < files.size(); i++) { @@ -107,6 +124,7 @@ public class DBCleanupTests { } } + @SuppressWarnings("SameParameterValue") void populateItems(final int numItems, Feed feed, List items, List files, int itemState, boolean addToQueue, boolean addToFavorites) throws IOException { @@ -121,7 +139,8 @@ public class DBCleanupTests { File f = new File(destFolder, "file " + i); assertTrue(f.createNewFile()); files.add(f); - item.setMedia(new FeedMedia(0, item, 1, 0, 1L, "m", f.getAbsolutePath(), "url", true, playbackCompletionDate, 0, 0)); + item.setMedia(new FeedMedia(0, item, 1, 0, 1L, "m", + f.getAbsolutePath(), "url", true, playbackCompletionDate, 0, 0)); items.add(item); } @@ -139,19 +158,20 @@ public class DBCleanupTests { assertTrue(feed.getId() != 0); for (FeedItem item : items) { assertTrue(item.getId() != 0); + //noinspection ConstantConditions assertTrue(item.getMedia().getId() != 0); } } @Test public void testPerformAutoCleanupHandleUnplayed() throws IOException { - final int NUM_ITEMS = EPISODE_CACHE_SIZE * 2; + final int numItems = EPISODE_CACHE_SIZE * 2; Feed feed = new Feed("url", null, "title"); List items = new ArrayList<>(); feed.setItems(items); List files = new ArrayList<>(); - populateItems(NUM_ITEMS, feed, items, files, FeedItem.UNPLAYED, false, false); + populateItems(numItems, feed, items, files, FeedItem.UNPLAYED, false, false); DBTasks.performAutoCleanup(context); for (File file : files) { @@ -161,13 +181,13 @@ public class DBCleanupTests { @Test public void testPerformAutoCleanupShouldNotDeleteBecauseInQueue() throws IOException { - final int NUM_ITEMS = EPISODE_CACHE_SIZE * 2; + final int numItems = EPISODE_CACHE_SIZE * 2; Feed feed = new Feed("url", null, "title"); List items = new ArrayList<>(); feed.setItems(items); List files = new ArrayList<>(); - populateItems(NUM_ITEMS, feed, items, files, FeedItem.PLAYED, true, false); + populateItems(numItems, feed, items, files, FeedItem.PLAYED, true, false); DBTasks.performAutoCleanup(context); for (File file : files) { @@ -176,9 +196,9 @@ public class DBCleanupTests { } /** - * Reproduces a bug where DBTasks.performAutoCleanup(android.content.Context) would use the ID of the FeedItem in the - * call to DBWriter.deleteFeedMediaOfItem instead of the ID of the FeedMedia. This would cause the wrong item to be deleted. - * @throws IOException + * Reproduces a bug where DBTasks.performAutoCleanup(android.content.Context) would use the ID + * of the FeedItem in the call to DBWriter.deleteFeedMediaOfItem instead of the ID of the FeedMedia. + * This would cause the wrong item to be deleted. */ @Test public void testPerformAutoCleanupShouldNotDeleteBecauseInQueue_withFeedsWithNoMedia() throws IOException { @@ -188,6 +208,7 @@ public class DBCleanupTests { // add candidate for performAutoCleanup List feeds = saveFeedlist(1, 1, true); FeedMedia m = feeds.get(0).getItems().get(0).getMedia(); + //noinspection ConstantConditions m.setDownloaded(true); m.setFile_url("file"); PodDBAdapter adapter = PodDBAdapter.getInstance(); @@ -200,13 +221,13 @@ public class DBCleanupTests { @Test public void testPerformAutoCleanupShouldNotDeleteBecauseFavorite() throws IOException { - final int NUM_ITEMS = EPISODE_CACHE_SIZE * 2; + final int numItems = EPISODE_CACHE_SIZE * 2; Feed feed = new Feed("url", null, "title"); List items = new ArrayList<>(); feed.setItems(items); List files = new ArrayList<>(); - populateItems(NUM_ITEMS, feed, items, files, FeedItem.PLAYED, false, true); + populateItems(numItems, feed, items, files, FeedItem.PLAYED, false, true); DBTasks.performAutoCleanup(context); for (File file : files) { diff --git a/app/src/androidTest/java/de/test/antennapod/storage/DBQueueCleanupAlgorithmTest.java b/core/src/test/java/de/danoeh/antennapod/core/storage/DbQueueCleanupAlgorithmTest.java similarity index 70% rename from app/src/androidTest/java/de/test/antennapod/storage/DBQueueCleanupAlgorithmTest.java rename to core/src/test/java/de/danoeh/antennapod/core/storage/DbQueueCleanupAlgorithmTest.java index de810c701..6e53bd20e 100644 --- a/app/src/androidTest/java/de/test/antennapod/storage/DBQueueCleanupAlgorithmTest.java +++ b/core/src/test/java/de/danoeh/antennapod/core/storage/DbQueueCleanupAlgorithmTest.java @@ -1,16 +1,17 @@ -package de.test.antennapod.storage; +package de.danoeh.antennapod.core.storage; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.List; -import androidx.test.filters.SmallTest; import de.danoeh.antennapod.core.feed.Feed; import de.danoeh.antennapod.core.feed.FeedItem; import de.danoeh.antennapod.core.preferences.UserPreferences; -import de.danoeh.antennapod.core.storage.DBTasks; + import org.junit.Test; +import org.junit.runner.RunWith; +import org.robolectric.RobolectricTestRunner; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertTrue; @@ -18,28 +19,26 @@ import static org.junit.Assert.assertTrue; /** * Tests that the APQueueCleanupAlgorithm is working correctly. */ -@SmallTest -public class DBQueueCleanupAlgorithmTest extends DBCleanupTests { +@RunWith(RobolectricTestRunner.class) +public class DbQueueCleanupAlgorithmTest extends DbCleanupTests { - private static final String TAG = "DBQueueCleanupAlgorithmTest"; - - public DBQueueCleanupAlgorithmTest() { + public DbQueueCleanupAlgorithmTest() { setCleanupAlgorithm(UserPreferences.EPISODE_CLEANUP_QUEUE); } /** * For APQueueCleanupAlgorithm we expect even unplayed episodes to be deleted if needed - * if they aren't in the queue + * if they aren't in the queue. */ @Test public void testPerformAutoCleanupHandleUnplayed() throws IOException { - final int NUM_ITEMS = EPISODE_CACHE_SIZE * 2; + final int numItems = EPISODE_CACHE_SIZE * 2; Feed feed = new Feed("url", null, "title"); List items = new ArrayList<>(); feed.setItems(items); List files = new ArrayList<>(); - populateItems(NUM_ITEMS, feed, items, files, FeedItem.UNPLAYED, false, false); + populateItems(numItems, feed, items, files, FeedItem.UNPLAYED, false, false); DBTasks.performAutoCleanup(context); for (int i = 0; i < files.size(); i++) { diff --git a/app/src/androidTest/java/de/test/antennapod/storage/DBReaderTest.java b/core/src/test/java/de/danoeh/antennapod/core/storage/DbReaderTest.java similarity index 83% rename from app/src/androidTest/java/de/test/antennapod/storage/DBReaderTest.java rename to core/src/test/java/de/danoeh/antennapod/core/storage/DbReaderTest.java index 8811d9b31..212b94743 100644 --- a/app/src/androidTest/java/de/test/antennapod/storage/DBReaderTest.java +++ b/core/src/test/java/de/danoeh/antennapod/core/storage/DbReaderTest.java @@ -1,4 +1,6 @@ -package de.test.antennapod.storage; +package de.danoeh.antennapod.core.storage; + +import android.content.Context; import java.util.ArrayList; import java.util.Date; @@ -6,18 +8,18 @@ import java.util.List; import java.util.Random; import androidx.test.platform.app.InstrumentationRegistry; -import androidx.test.filters.SmallTest; import de.danoeh.antennapod.core.feed.Feed; import de.danoeh.antennapod.core.feed.FeedItem; import de.danoeh.antennapod.core.feed.FeedMedia; -import de.danoeh.antennapod.core.storage.DBReader; -import de.danoeh.antennapod.core.storage.PodDBAdapter; +import de.danoeh.antennapod.core.preferences.UserPreferences; import de.danoeh.antennapod.core.util.LongList; import org.junit.After; import org.junit.Before; import org.junit.Test; +import org.junit.runner.RunWith; +import org.robolectric.RobolectricTestRunner; -import static de.test.antennapod.storage.DBTestUtils.saveFeedlist; +import static de.danoeh.antennapod.core.storage.DbTestUtils.saveFeedlist; import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertNotNull; @@ -25,26 +27,30 @@ import static org.junit.Assert.assertNull; import static org.junit.Assert.assertTrue; /** - * Test class for DBReader + * Test class for DBReader. */ -@SmallTest -public class DBReaderTest { - - @After - public void tearDown() throws Exception { - assertTrue(PodDBAdapter.deleteDatabase()); - } +@SuppressWarnings("ConstantConditions") +@RunWith(RobolectricTestRunner.class) +public class DbReaderTest { @Before - public void setUp() throws Exception { - // create new database - PodDBAdapter.init(InstrumentationRegistry.getInstrumentation().getTargetContext()); + public void setUp() { + Context context = InstrumentationRegistry.getInstrumentation().getContext(); + UserPreferences.init(context); + + PodDBAdapter.init(context); PodDBAdapter.deleteDatabase(); PodDBAdapter adapter = PodDBAdapter.getInstance(); adapter.open(); adapter.close(); } + @After + public void tearDown() { + PodDBAdapter.tearDownTests(); + DBWriter.tearDownTests(); + } + @Test public void testGetFeedList() { List feeds = saveFeedlist(10, 0, false); @@ -136,6 +142,7 @@ public class DBReaderTest { } } + @SuppressWarnings("SameParameterValue") private List saveQueue(int numItems) { if (numItems <= 0) { throw new IllegalArgumentException("numItems<=0"); @@ -162,7 +169,7 @@ public class DBReaderTest { } @Test - public void testGetQueueIDList() { + public void testGetQueueIdList() { final int numItems = 10; List queue = saveQueue(numItems); LongList ids = DBReader.getQueueIDList(); @@ -187,6 +194,7 @@ public class DBReaderTest { } } + @SuppressWarnings("SameParameterValue") private List saveDownloadedItems(int numItems) { if (numItems <= 0) { throw new IllegalArgumentException("numItems<=0"); @@ -219,16 +227,17 @@ public class DBReaderTest { public void testGetDownloadedItems() { final int numItems = 10; List downloaded = saveDownloadedItems(numItems); - List downloaded_saved = DBReader.getDownloadedItems(); - assertNotNull(downloaded_saved); - assertEquals(downloaded.size(), downloaded_saved.size()); - for (FeedItem item : downloaded_saved) { + List downloadedSaved = DBReader.getDownloadedItems(); + assertNotNull(downloadedSaved); + assertEquals(downloaded.size(), downloadedSaved.size()); + for (FeedItem item : downloadedSaved) { assertNotNull(item.getMedia()); assertTrue(item.getMedia().isDownloaded()); assertNotNull(item.getMedia().getDownload_url()); } } + @SuppressWarnings("SameParameterValue") private List saveNewItems(int numItems) { List feeds = saveFeedlist(numItems, numItems, true); List items = new ArrayList<>(); @@ -285,7 +294,7 @@ public class DBReaderTest { final int numReturnedItems = Math.min(playedItems, DBReader.PLAYBACK_HISTORY_SIZE); final int numFeeds = 1; - Feed feed = DBTestUtils.saveFeedlist(numFeeds, numItems, true).get(0); + Feed feed = DbTestUtils.saveFeedlist(numFeeds, numItems, true).get(0); long[] ids = new long[playedItems]; PodDBAdapter adapter = PodDBAdapter.getInstance(); @@ -310,31 +319,31 @@ public class DBReaderTest { @Test public void testGetNavDrawerDataQueueEmptyNoUnreadItems() { - final int NUM_FEEDS = 10; - final int NUM_ITEMS = 10; - DBTestUtils.saveFeedlist(NUM_FEEDS, NUM_ITEMS, true); + final int numFeeds = 10; + final int numItems = 10; + DbTestUtils.saveFeedlist(numFeeds, numItems, true); DBReader.NavDrawerData navDrawerData = DBReader.getNavDrawerData(); - assertEquals(NUM_FEEDS, navDrawerData.feeds.size()); + assertEquals(numFeeds, navDrawerData.feeds.size()); assertEquals(0, navDrawerData.numNewItems); assertEquals(0, navDrawerData.queueSize); } @Test public void testGetNavDrawerDataQueueNotEmptyWithUnreadItems() { - final int NUM_FEEDS = 10; - final int NUM_ITEMS = 10; - final int NUM_QUEUE = 1; - final int NUM_NEW = 2; - List feeds = DBTestUtils.saveFeedlist(NUM_FEEDS, NUM_ITEMS, true); + final int numFeeds = 10; + final int numItems = 10; + final int numQueue = 1; + final int numNew = 2; + List feeds = DbTestUtils.saveFeedlist(numFeeds, numItems, true); PodDBAdapter adapter = PodDBAdapter.getInstance(); adapter.open(); - for (int i = 0; i < NUM_NEW; i++) { + for (int i = 0; i < numNew; i++) { FeedItem item = feeds.get(0).getItems().get(i); item.setNew(); adapter.setSingleFeedItem(item); } List queue = new ArrayList<>(); - for (int i = 0; i < NUM_QUEUE; i++) { + for (int i = 0; i < numQueue; i++) { FeedItem item = feeds.get(1).getItems().get(i); queue.add(item); } @@ -343,14 +352,14 @@ public class DBReaderTest { adapter.close(); DBReader.NavDrawerData navDrawerData = DBReader.getNavDrawerData(); - assertEquals(NUM_FEEDS, navDrawerData.feeds.size()); - assertEquals(NUM_NEW, navDrawerData.numNewItems); - assertEquals(NUM_QUEUE, navDrawerData.queueSize); + assertEquals(numFeeds, navDrawerData.feeds.size()); + assertEquals(numNew, navDrawerData.numNewItems); + assertEquals(numQueue, navDrawerData.queueSize); } @Test - public void testGetFeedItemlistCheckChaptersFalse() throws Exception { - List feeds = DBTestUtils.saveFeedlist(10, 10, false, false, 0); + public void testGetFeedItemlistCheckChaptersFalse() { + List feeds = DbTestUtils.saveFeedlist(10, 10, false, false, 0); for (Feed feed : feeds) { for (FeedItem item : feed.getItems()) { assertFalse(item.hasChapters()); @@ -359,7 +368,7 @@ public class DBReaderTest { } @Test - public void testGetFeedItemlistCheckChaptersTrue() throws Exception { + public void testGetFeedItemlistCheckChaptersTrue() { List feeds = saveFeedlist(10, 10, false, true, 10); for (Feed feed : feeds) { for (FeedItem item : feed.getItems()) { @@ -369,7 +378,7 @@ public class DBReaderTest { } @Test - public void testLoadChaptersOfFeedItemNoChapters() throws Exception { + public void testLoadChaptersOfFeedItemNoChapters() { List feeds = saveFeedlist(1, 3, false, false, 0); saveFeedlist(1, 3, false, true, 3); for (Feed feed : feeds) { @@ -383,25 +392,25 @@ public class DBReaderTest { } @Test - public void testLoadChaptersOfFeedItemWithChapters() throws Exception { - final int NUM_CHAPTERS = 3; - DBTestUtils.saveFeedlist(1, 3, false, false, 0); - List feeds = saveFeedlist(1, 3, false, true, NUM_CHAPTERS); + public void testLoadChaptersOfFeedItemWithChapters() { + final int numChapters = 3; + DbTestUtils.saveFeedlist(1, 3, false, false, 0); + List feeds = saveFeedlist(1, 3, false, true, numChapters); for (Feed feed : feeds) { for (FeedItem item : feed.getItems()) { assertTrue(item.hasChapters()); item.setChapters(DBReader.loadChaptersOfFeedItem(item)); assertTrue(item.hasChapters()); assertNotNull(item.getChapters()); - assertEquals(NUM_CHAPTERS, item.getChapters().size()); + assertEquals(numChapters, item.getChapters().size()); } } } @Test - public void testGetItemWithChapters() throws Exception { - final int NUM_CHAPTERS = 3; - List feeds = saveFeedlist(1, 1, false, true, NUM_CHAPTERS); + public void testGetItemWithChapters() { + final int numChapters = 3; + List feeds = saveFeedlist(1, 1, false, true, numChapters); FeedItem item1 = feeds.get(0).getItems().get(0); FeedItem item2 = DBReader.getFeedItem(item1.getId()); item2.setChapters(DBReader.loadChaptersOfFeedItem(item2)); diff --git a/app/src/androidTest/java/de/test/antennapod/storage/DBTestUtils.java b/core/src/test/java/de/danoeh/antennapod/core/storage/DbTestUtils.java similarity index 95% rename from app/src/androidTest/java/de/test/antennapod/storage/DBTestUtils.java rename to core/src/test/java/de/danoeh/antennapod/core/storage/DbTestUtils.java index 840a7d01f..400ddda36 100644 --- a/app/src/androidTest/java/de/test/antennapod/storage/DBTestUtils.java +++ b/core/src/test/java/de/danoeh/antennapod/core/storage/DbTestUtils.java @@ -1,4 +1,4 @@ -package de.test.antennapod.storage; +package de.danoeh.antennapod.core.storage; import java.util.ArrayList; import java.util.Collections; @@ -10,7 +10,6 @@ import de.danoeh.antennapod.core.feed.Feed; import de.danoeh.antennapod.core.feed.FeedItem; import de.danoeh.antennapod.core.feed.FeedMedia; import de.danoeh.antennapod.core.feed.SimpleChapter; -import de.danoeh.antennapod.core.storage.PodDBAdapter; import de.danoeh.antennapod.core.util.comparator.FeedItemPubdateComparator; import static org.junit.Assert.assertTrue; @@ -18,9 +17,8 @@ import static org.junit.Assert.assertTrue; /** * Utility methods for DB* tests. */ -class DBTestUtils { +abstract class DbTestUtils { - private DBTestUtils(){} /** * Use this method when tests don't involve chapters. */