/**
* This is a hack.
*
* <p>Startup results in us writing prefs -- we fetch the Distribution, which caches its state.
* Our tests try to wipe those prefs, but apparently sometimes race with startup, which leads to
* us not getting one of our expected messages. The test fails.
*
* <p>This hack waits for any existing background tasks -- such as the one that writes prefs -- to
* finish before we begin the test.
*/
private void waitForBackgroundHappiness() {
final Object signal = new Object();
final Runnable done =
new Runnable() {
@Override
public void run() {
synchronized (signal) {
signal.notify();
}
}
};
synchronized (signal) {
ThreadUtils.postToBackgroundThread(done);
try {
signal.wait();
} catch (InterruptedException e) {
mAsserter.ok(false, "InterruptedException waiting on background thread.", e.toString());
}
}
mAsserter.dumpLog("Background task completed. Proceeding.");
}
