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package com.android.launcher3.util;
import androidx.test.uiautomator.UiObject2;
import com.android.launcher3.MainThreadExecutor;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
public interface Condition {
boolean isTrue() throws Throwable;
/**
* Converts the condition to be run on UI thread.
*/
static Condition runOnUiThread(final Condition condition) {
final MainThreadExecutor executor = new MainThreadExecutor();
return () -> {
final AtomicBoolean value = new AtomicBoolean(false);
final Throwable[] exceptions = new Throwable[1];
final CountDownLatch latch = new CountDownLatch(1);
executor.execute(() -> {
try {
value.set(condition.isTrue());
} catch (Throwable e) {
exceptions[0] = e;
}
});
latch.await(1, TimeUnit.SECONDS);
if (exceptions[0] != null) {
throw exceptions[0];
}
return value.get();
};
}
static Condition minChildCount(final UiObject2 obj, final int childCount) {
return () -> obj.getChildCount() >= childCount;
}
}
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