@CollectionSize.Require(ZERO)
  public void testEmptySetPollFirst() {
    assertNull(navigableSet.pollFirst());
  }

  @CollectionSize.Require(ZERO)
  public void testEmptySetNearby() {
    assertNull(navigableSet.lower(e0()));
    assertNull(navigableSet.floor(e0()));
    assertNull(navigableSet.ceiling(e0()));
    assertNull(navigableSet.higher(e0()));
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)

package jcifs;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.fail;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;

        assertEquals("*", queryContext.getQueryString());
        assertNull(queryContext.getDefaultField());
    }

    // Test constructor with empty query string
    public void test_constructor_emptyQueryString() {
        queryContext = new QueryContext("", false);
        assertEquals("*", queryContext.getQueryString());
        assertNull(queryContext.getDefaultField());
    }

        assertEquals(2, synonymItem.getOutputs().length);
        assertEquals("b", synonymItem.getOutputs()[0]);
        assertEquals("B", synonymItem.getOutputs()[1]);
        assertNull(synonymItem.getNewInputs());
        assertNull(synonymItem.getNewOutputs());
        assertFalse(synonymItem.isUpdated());
        assertFalse(synonymItem.isDeleted());

        synonymItem.setNewInputs(new String[] { "1", "2" });

        assertNull(smbAuthenticationHolder.get(null));
        assertNull(smbAuthenticationHolder.get(""));
        assertNull(smbAuthenticationHolder.get(" "));
        assertNull(smbAuthenticationHolder.get("smb://"));
        assertNull(smbAuthenticationHolder.get("smb://hoge:1000/"));
        assertNull(smbAuthenticationHolder.get("smb://foo/"));
        assertNull(smbAuthenticationHolder.get("smb://foo:10000/"));

    assertTrue(map.remove(one, three));
    assertFalse(map.containsKey(one));
    assertFalse(map.containsValue(one));
    assertNull(map.putIfAbsent(two, three));
    assertSame(three, map.remove(two));
    assertNull(map.put(three, one));
    assertNull(map.put(one, two));

    assertThat(map).containsEntry(three, one);
    assertThat(map).containsEntry(one, two);

        TestAuthenticationChain chain = new TestAuthenticationChain();
        chain.updateThrowsException = false;

        chain.update(null);

        assertEquals(1, chain.updateCalls.size());
        assertNull(chain.updateCalls.get(0));
    }

    // Test update with multiple calls
    public void test_update_multipleCalls() {
        TestAuthenticationChain chain = new TestAuthenticationChain();

        assertEquals(componentName + " is not available.", exception.getMessage());
        assertNull(exception.getCause());
        // Note: This test reveals that componentName field is not set in this constructor
        assertNull(exception.getComponentName());
    }

    public void test_constructor_withComponentNameAndCause() {

        assertEquals(123, item.getId());
        assertEquals("and", item.getInput());
        assertNull(item.getNewInput());
    }

    public void test_getNewInput_setNewInput() {
        // Test getter and setter for newInput
        StopwordsItem item = new StopwordsItem(1, "or");
        assertNull(item.getNewInput());

        item.setNewInput("nor");
        assertEquals("nor", item.getNewInput());

        assertNull(smbAuthenticationHolder.get(null));
        assertNull(smbAuthenticationHolder.get(""));
        assertNull(smbAuthenticationHolder.get(" "));
        assertNull(smbAuthenticationHolder.get("smb1://"));
        assertNull(smbAuthenticationHolder.get("smb1://hoge:1000/"));
        assertNull(smbAuthenticationHolder.get("smb1://foo/"));
        assertNull(smbAuthenticationHolder.get("smb1://foo:10000/"));