InvertibleCryptographer first = securityResourceProvider.providePrimaryInvertibleCryptographer();
        InvertibleCryptographer second = securityResourceProvider.providePrimaryInvertibleCryptographer();

        assertNotNull(first);
        assertNotNull(second);
        assertSame(first, second);
        assertSame(invertibleCryptographer, first);
    }

    public void test_providePrimaryInvertibleCryptographer_consistency() {

 * the License.
 */

package com.google.common.util.concurrent.testing;

import static com.google.common.util.concurrent.MoreExecutors.directExecutor;
import static java.util.concurrent.TimeUnit.SECONDS;

import com.google.common.annotations.GwtIncompatible;
import com.google.common.util.concurrent.ListenableFuture;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutionException;

    assertTrue(latch.await(5, SECONDS));
    assertTrue(future.isDone());
    assertFalse(future.isCancelled());

    assertEquals(expectedValue, future.get());
  }

  public void testCancelledFuture() throws InterruptedException, ExecutionException {
    assertTrue(future.isDone());
    assertTrue(future.isCancelled());

    assertTrue(latch.await(5, SECONDS));
    assertTrue(future.isDone());

  public void testParse_writeExpirationSeconds() {
    CacheBuilderSpec spec = parse("expireAfterWrite=10s");
    assertEquals(SECONDS, spec.writeExpirationTimeUnit);
    assertEquals(10L, spec.writeExpirationDuration);
    assertCacheBuilderEquivalence(
        CacheBuilder.newBuilder().expireAfterWrite(10L, SECONDS), CacheBuilder.from(spec));
  }

  public void testParse_writeExpirationRepeated() {
    assertThrows(

        Instant first = MonotonicClock.now();
        Thread.sleep(10); // Small delay
        Instant second = MonotonicClock.now();
        Thread.sleep(10); // Small delay
        Instant third = MonotonicClock.now();

        assertTrue(first.isBefore(second), "Time should progress forward between measurements");
        assertTrue(second.isBefore(third), "Time should progress forward between measurements");
    }

    @Test

    }

    /**
     * Sets the minimum number of seconds that a response will continue to be fresh for. If the
     * response will be stale when [minFresh] have elapsed, the cached response will not be used and
     * a network request will be made.
     *
     * @param minFresh a non-negative integer. This is stored and transmitted with
     *     [TimeUnit.SECONDS] precision; finer precision will be lost.
     */

        ChannelInfo second = loadBalancer.selectChannel(mockMessage);

        assertNotNull(first);
        assertNotNull(second);
        // Due to round-robin, should get different channels or same order
        assertTrue(Arrays.asList(channel1, channel2).contains(first));
        assertTrue(Arrays.asList(channel1, channel2).contains(second));
    }

    @Test

   * as a false predicate is found.
   *
   * <p><b>Discouraged:</b> Prefer using {@code first.and(second)}.
   */
  public static <T extends @Nullable Object> Predicate<T> and(
      Predicate<? super T> first, Predicate<? super T> second) {
    return new AndPredicate<>(Predicates.<T>asList(checkNotNull(first), checkNotNull(second)));
  }

  /**

```Python
old_dict = {
    "old key": "old value",
    "second old key": "second old value",
}
new_dict = {**old_dict, "new key": "new value"}
```

📥, `new_dict` 🔜 🔌 🌐 🔑-💲 👫 ⚪️➡️ `old_dict` ➕ 🆕 🔑-💲 👫:

```Python
{
    "old key": "old value",
    "second old key": "second old value",
    "new key": "new value",
}
```

        assertTrue(addresses.length > 0, "Should return at least one address");
    }

    @Test
    @DisplayName("Should handle NetBIOS name resolution with timeout")
    @Timeout(value = 2, unit = TimeUnit.SECONDS) // Force test timeout
    void testGetNbtByName() {
        // When/Then - Should throw UnknownHostException quickly due to short timeouts
        UnknownHostException exception = assertThrows(UnknownHostException.class, () -> {