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package de.test.antennapod.storage;
import android.content.Context;
import android.content.SharedPreferences;
import android.preference.PreferenceManager;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import androidx.test.platform.app.InstrumentationRegistry;
import androidx.test.filters.LargeTest;
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.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 static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
/**
* Tests that the APNullCleanupAlgorithm is working correctly.
*/
@SmallTest
public class DBNullCleanupAlgorithmTest {
private static final String TAG = "DBNullCleanupAlgorithmTest";
private static final int EPISODE_CACHE_SIZE = 5;
private Context context;
private File destFolder;
@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 {
context = InstrumentationRegistry.getInstrumentation().getTargetContext();
destFolder = context.getExternalCacheDir();
cleanupDestFolder(destFolder);
assertNotNull(destFolder);
assertTrue(destFolder.exists());
assertTrue(destFolder.canWrite());
// create new database
PodDBAdapter.init(context);
PodDBAdapter.deleteDatabase();
PodDBAdapter adapter = PodDBAdapter.getInstance();
adapter.open();
adapter.close();
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(UserPreferences.EPISODE_CLEANUP_NULL));
prefEdit.commit();
UserPreferences.init(context);
}
/**
* A test with no items in the queue, but multiple items downloaded.
* The null algorithm should never delete any items, even if they're played and not in the queue.
* @throws IOException
*/
@Test
public void testPerformAutoCleanupShouldNotDelete() throws IOException {
final int NUM_ITEMS = EPISODE_CACHE_SIZE * 2;
Feed feed = new Feed("url", null, "title");
List<FeedItem> items = new ArrayList<>();
feed.setItems(items);
List<File> files = new ArrayList<>();
for (int i = 0; i < NUM_ITEMS; i++) {
FeedItem item = new FeedItem(0, "title", "id", "link", new Date(), FeedItem.PLAYED, feed);
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,
new Date(NUM_ITEMS - i), 0, 0));
items.add(item);
}
PodDBAdapter adapter = PodDBAdapter.getInstance();
adapter.open();
adapter.setCompleteFeed(feed);
adapter.close();
assertTrue(feed.getId() != 0);
for (FeedItem item : items) {
assertTrue(item.getId() != 0);
assertTrue(item.getMedia().getId() != 0);
}
DBTasks.performAutoCleanup(context);
for (int i = 0; i < files.size(); i++) {
assertTrue(files.get(i).exists());
}
}
}
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