StefanRRichter commented on a change in pull request #7273: [FLINK-11122][core]
Change signature of WrappingProxyUtil#stripProxy(T)
URL: https://github.com/apache/flink/pull/7273#discussion_r240955517
##########
File path:
flink-core/src/test/java/org/apache/flink/core/fs/AbstractCloseableRegistryTest.java
##########
@@ -225,4 +209,55 @@ public synchronized void close() throws IOException {
refCount.decrementAndGet();
}
}
+
+ /**
+ * A noop {@link Closeable} implementation that blocks inside {@link
#close()}.
+ */
+ private static class BlockingTestCloseable implements Closeable {
+
+ private final CountDownLatch closeCalledLatch = new
CountDownLatch(1);
+
+ private final CountDownLatch blockCloseLatch = new
CountDownLatch(1);
+
+ @Override
+ public void close() throws IOException {
+ closeCalledLatch.countDown();
+ try {
+ blockCloseLatch.await();
+ } catch (InterruptedException e) {
+ Thread.currentThread().interrupt();
+ }
+ }
+
+ /**
+ * Unblocks {@link #close()}.
+ */
+ public void unblockClose() {
+ blockCloseLatch.countDown();
+ }
+
+ /**
+ * Causes the current thread to wait until {@link #close()} is
called.
+ */
+ public void awaitClose(final long timeout, final TimeUnit
timeUnit) throws InterruptedException {
+ closeCalledLatch.await(timeout, timeUnit);
+ }
+ }
+
+ /**
+ * A noop {@link Closeable} implementation that tracks whether it was
closed.
+ */
+ private static class TestCloseable implements Closeable {
+
+ private final AtomicBoolean closed = new AtomicBoolean();
+
+ @Override
+ public void close() throws IOException {
+ closed.set(true);
Review comment:
We could make the test a bit stricter by ensuring compareAndSet(false, true)
to check that close should also be called only once. A small improvent that
would be cheap to do.
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