assertThrows(UncheckedTimeoutException.class, () -> proxy.sleepThenReturnInput("x"));

    assertThat(stopwatch.elapsed(MILLISECONDS)).isIn(Range.closed(NOT_ENOUGH_MS, DELAY_MS * 2));
    // Is it still computing away anyway?
    assertThat(target.finished).isFalse();
    MILLISECONDS.sleep(ENOUGH_MS);
    assertThat(target.finished).isFalse();
  }

        byte[] data = "Hello, World!".getBytes();
        ContentCache cache = new ContentCache(data);

        // Memory-based cache close should not throw exception
        cache.close();

        // Should still be able to get input stream after close for memory cache
        try (InputStream stream = cache.getInputStream()) {
            assertNotNull(stream);
        }
    }

    @Test

        // Test init method with null values
        AccessResultImpl<Long> result = new AccessResultImpl<>();

        result.init(null, null);

        // CreateTime should still be set
        assertNotNull(result.getCreateTime());

        // AccessResultData should be created
        assertNotNull(result.getAccessResultData());
    }

    public void test_toString() {

        DirectoryCacheEntry entry = directoryCache.get(directoryPath);

        // Check if cache entry is valid
        if (entry != null && entry.needsRefresh()) {
            // Check if lease is still valid
            LeaseManager.LeaseEntry leaseEntry = baseLeaseManager.getLease(entry.getLeaseKey());
            if (leaseEntry == null || !leaseEntry.hasReadCache()) {
                // Lease lost, remove cache entry

    // notifications for all of them.
    for (int i = 0; i < nSeededEntries; i++) {
      assertThat(removalNotifications.get("b" + i)).isEqualTo("b" + i);
    }

    // Each of the values added to the map should either still be there, or have seen a removal
    // notification.
    assertThat(Sets.union(cache.asMap().keySet(), removalNotifications.keySet()))
        .isEqualTo(expectedKeys);

       * timeoutFuture can be set (and delegate cancelled) only once. (And "set only once" is
       * important for other reasons: run() can still be invoked concurrently in different threads,
       * even with the above null checks.)
       */
      timeoutFutureRef = null;
      if (delegate.isDone()) {
        timeoutFuture.setFuture(delegate);

          // For convenience, testing only with big endianness, to match DataOutputStream.
          // I regard highly unlikely that both the little endianness tests above and this one
          // passes, and there is still a little endianness bug lurking around.
        }
      }

      Control control = new Control();
      Hasher controlSink = control.newHasher(1024);

      Iterable<Hasher> sinksAndControl =

        @CsvSource({ "0, 0, 1024", "1024, 2048, 4096", "9223372036854775807, 9223372036854775807, 2147483647", // Max long values
                "-1, -1, -1", // Negative values (should still create instance)
                "0, 9223372036854775807, 0" // Edge cases
        })
        void testConstructorWithVariousValues(long sourceOffset, long targetOffset, int length) {
            // When

        boolean secondInit = client.isInit.compareAndSet(false, true);
        assertFalse("Second initialization should not occur", secondInit);
        assertTrue("Client should still be initialized", client.isInit.get());
    }

            // Collect keys in iteration order
            List<String> keys = new ArrayList<>();
            modelProps.keySet().forEach(k -> keys.add(k.toString()));

            // Verify order is preserved (first should still be first since it was modified, not re-added)
            assertEquals(3, keys.size());
            assertEquals("first", keys.get(0));
            assertEquals("second", keys.get(1));