Change which backdoor the tests goes through

Yes that's even harder to understand. The old technique doesn't work
any more, so I have to drill a new hole in this class.

Bug: 8303100
Change-Id: I70a41b5094dab2bb56a17eaf55b2a2df853e4bb6
main
Jean Chalard 2013-04-02 18:17:27 +09:00
parent 84bfde0421
commit 5d399ec719
1 changed files with 12 additions and 8 deletions

View File

@ -181,17 +181,21 @@ public class InputTestsBase extends ServiceTestCase<LatinIME> {
// a message that calls it instead of calling it directly.
Looper.loop();
// Once #quit() has been called, the message queue has an "mQuiting" field that prevents
// any subsequent post in this queue. However the queue itself is still fully functional!
// If we have a way of resetting "queue.mQuiting" then we can continue using it as normal,
// coming back to this method to run the messages.
// Once #quit() has been called, the looper is not functional any more (it used to be,
// but now it SIGSEGV's if it's used again).
// It won't accept creating a new looper for this thread and switching to it...
// ...unless we can trick it into throwing out the old looper and believing it hasn't
// been initialized before.
MessageQueue queue = Looper.myQueue();
try {
// However there is no way of doing it externally, and mQuiting is private.
// However there is no way of doing it externally, and the static ThreadLocal
// field into which it's stored is private.
// So... get out the big guns.
java.lang.reflect.Field f = MessageQueue.class.getDeclaredField("mQuiting");
f.setAccessible(true); // What do you mean "private"?
f.setBoolean(queue, false);
java.lang.reflect.Field f = Looper.class.getDeclaredField("sThreadLocal");
f.setAccessible(true); // private lolwut
final ThreadLocal<Looper> a = (ThreadLocal<Looper>) f.get(looper);
a.set(null);
looper.prepare();
} catch (NoSuchFieldException e) {
throw new RuntimeException(e);
} catch (IllegalAccessException e) {