@MapFeature.Require(SUPPORTS_REMOVE)
  public void testClear() {
    getMap().clear();
    assertTrue("After clear(), a map should be empty.", getMap().isEmpty());
    assertEquals(0, getMap().size());
    assertFalse(getMap().entrySet().iterator().hasNext());
  }

  @MapFeature.Require({FAILS_FAST_ON_CONCURRENT_MODIFICATION, SUPPORTS_REMOVE})
  @CollectionSize.Require(SEVERAL)

              }));
    }
    threadPool.shutdown();
    assertTrue(threadPool.awaitTermination(300, SECONDS));
    long sum = 0;
    for (Future<Long> f : futures) {
      sum += f.get();
    }
    assertEquals(sum, map.get(key));
  }

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package jcifs.util;

import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;

        // Test that initialization completes without exception
    }

    @Test
    public void test_classStructure() {
        // Test that the class exists and has the expected structure
        assertEquals("CustomSizeValidator should be in correct package", "org.codelibs.fess.validation.CustomSizeValidator",
                CustomSizeValidator.class.getName());

        // Test that it implements ConstraintValidator

 */
package okhttp3.internal.publicsuffix

import assertk.assertThat
import assertk.assertions.isEqualTo
import assertk.assertions.isNull
import assertk.assertions.isTrue
import kotlin.test.assertEquals
import kotlin.test.assertFailsWith
import okhttp3.internal.publicsuffix.ResourcePublicSuffixList.Companion.PUBLIC_SUFFIX_RESOURCE
import okhttp3.internal.toCanonicalHost
import okhttp3.okHttpRoot
import okio.Buffer

   * not include the value of the object.
   *
   * @since 33.4.0
   */
  public static void assertNull(String message, Object object) {
    assertEquals(message, null, object);
  }

   * not include the value of the object.
   *
   * @since 33.4.0
   */
  public static void assertNull(String message, Object object) {
    assertEquals(message, null, object);
  }

            // but method should be callable
            assertNotNull(e, "Exception should not be null if thrown");
        }
    }

    @Test
    public void test_package_structure() {
        assertEquals("Should be in timer package", "org.codelibs.fess.timer", HotThreadMonitorTarget.class.getPackage().getName());
    }

    @Test
    public void test_class_is_public() {

        assertNotNull(key);
        
        LeaseEntry entry = manager.getLease(key);
        assertNotNull(entry);
        assertEquals(requestedState, entry.getLeaseState());
        
        // Test lease break
        manager.handleLeaseBreak(key, Smb2LeaseState.SMB2_LEASE_READ_CACHING);
        assertEquals(Smb2LeaseState.SMB2_LEASE_READ_CACHING, entry.getLeaseState());
    }
}
```

### 8.2 Integration Tests
```java

        String googleChatResult = notificationHelper.toGoogleChatMessage(discloser);

        // Both methods should produce identical output
        assertEquals(slackResult, googleChatResult);
    }

    @Test
    public void test_toSlackMessage_withLongContent() {
        MockSMailPostingDiscloser discloser = new MockSMailPostingDiscloser();