private File createDistSuggestedSitesFile(int n) {
FileOutputStream fos = null;
try {
File distFile = File.createTempFile("distrosites", ".json", context.getCacheDir());
fos = new FileOutputStream(distFile);
fos.write(generateSites(n, DIST_PREFIX).getBytes());
return distFile;
} catch (IOException e) {
fail("Failed to create temp suggested sites file");
} finally {
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
// Ignore.
}
}
}
return null;
}
public void testDistribution() {
final int DIST_COUNT = 2;
final int DEFAULT_COUNT = 3;
File sitesFile =
new File(context.getCacheDir(), "suggestedsites-" + SystemClock.uptimeMillis() + ".json");
tempFiles.add(sitesFile);
assertFalse(sitesFile.exists());
File distFile = createDistSuggestedSitesFile(DIST_COUNT);
tempFiles.add(distFile);
assertTrue(distFile.exists());
// Init distribution with the mock file.
TestDistribution distribution = new TestDistribution(context);
distribution.setFileForLocale(Locale.getDefault(), distFile);
distribution.start();
// Init suggested sites with default values.
resources.setSuggestedSitesResource(generateSites(DEFAULT_COUNT));
SuggestedSites suggestedSites = new SuggestedSites(context, distribution, sitesFile);
Object changeLock = new Object();
// Watch for change notifications on suggested sites.
ContentResolver cr = context.getContentResolver();
ContentObserver observer = new TestObserver(changeLock);
cr.registerContentObserver(BrowserContract.SuggestedSites.CONTENT_URI, false, observer);
// The initial query will not contain the distribution sites
// yet. This will happen asynchronously once the distribution
// is installed.
Cursor c1 = null;
try {
c1 = suggestedSites.get(DEFAULT_LIMIT);
assertEquals(DEFAULT_COUNT, c1.getCount());
} finally {
if (c1 != null) {
c1.close();
}
}
synchronized (changeLock) {
try {
changeLock.wait(5000);
} catch (InterruptedException ie) {
fail("No change notification after fetching distribution file");
}
}
// Target file should exist after distribution is deployed.
assertTrue(sitesFile.exists());
cr.unregisterContentObserver(observer);
Cursor c2 = null;
try {
c2 = suggestedSites.get(DEFAULT_LIMIT);
// The next query should contain the distribution contents.
assertEquals(DIST_COUNT + DEFAULT_COUNT, c2.getCount());
// The first items should be from the distribution
for (int i = 0; i < DIST_COUNT; i++) {
c2.moveToPosition(i);
String url = c2.getString(c2.getColumnIndexOrThrow(BrowserContract.SuggestedSites.URL));
assertEquals(DIST_PREFIX + "url" + i, url);
String title = c2.getString(c2.getColumnIndexOrThrow(BrowserContract.SuggestedSites.TITLE));
assertEquals(DIST_PREFIX + "title" + i, title);
}
// The remaining items should be the default ones
for (int i = 0; i < c2.getCount() - DIST_COUNT; i++) {
c2.moveToPosition(i + DIST_COUNT);
String url = c2.getString(c2.getColumnIndexOrThrow(BrowserContract.SuggestedSites.URL));
assertEquals("url" + i, url);
String title = c2.getString(c2.getColumnIndexOrThrow(BrowserContract.SuggestedSites.TITLE));
assertEquals("title" + i, title);
}
} finally {
if (c2 != null) {
c2.close();
}
}
}