assertEquals(0L, item.getId());
        assertNotNull(item.getNewInputs());
        assertEquals("result", item.getNewOutput());
        // NewInputs should be same as inputs for id=0
        assertSame(inputs, item.getNewInputs());
        assertEquals("result", item.getNewOutput());
    }

    public void test_constructor_withNewlineInOutput() {
        // Test newline replacement in output

        final VaMessenger<FessMessages> retrievedCode2 = exception.getMessageCode();

        assertNotNull(retrievedCode1);
        assertNotNull(retrievedCode2);
        assertSame(retrievedCode1, retrievedCode2);
        assertEquals(messageCode, retrievedCode1);
    }

    public void test_constructorParameterOrder() {
        // Setup - verify parameter order is correct

    for (MediaType constant : getConstants()) {
      assertSame(constant, MediaType.parse(constant.toString()));
    }
  }

  @J2ktIncompatible
  @GwtIncompatible // reflection
  public void testCreate_useConstants() throws Exception {
    for (MediaType constant : getConstants()) {
      assertSame(
          constant,
          MediaType.create(constant.type(), constant.subtype())

    assertNotNull(result);

    // A Writer should not be wrapped
    Appendable secretlyAWriter = new StringWriter();
    result = CharStreams.asWriter(secretlyAWriter);
    assertSame(secretlyAWriter, result);
  }

  // CharStreams.copy has type specific optimizations for Readers,StringBuilders and Writers

  public void testCopy() throws IOException {

    assertNotNull(result);

    // A Writer should not be wrapped
    Appendable secretlyAWriter = new StringWriter();
    result = CharStreams.asWriter(secretlyAWriter);
    assertSame(secretlyAWriter, result);
  }

  // CharStreams.copy has type specific optimizations for Readers,StringBuilders and Writers

  public void testCopy() throws IOException {

@NullMarked
public class FunctionsTest extends TestCase {

  public void testIdentity_same() {
    Function<@Nullable String, @Nullable String> identity = Functions.identity();
    assertNull(identity.apply(null));
    assertSame("foo", identity.apply("foo"));
  }

  public void testIdentity_notSame() {
    Function<Long, Long> identity = Functions.identity();
    assertNotSame(new Long(135135L), identity.apply(new Long(135135L)));
  }

import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.isNull;

        User user = createTestUser("testuser", "Test User");

        chain.update(user);

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

    // Test update with null user
    public void test_update_nullUser() {
        TestAuthenticationChain chain = new TestAuthenticationChain();

    Iterator<String> mod = Lists.newArrayList("a", "b", "c").iterator();
    UnmodifiableIterator<String> unmod = Iterators.unmodifiableIterator(mod);
    assertNotSame(mod, unmod);
    assertSame(unmod, Iterators.unmodifiableIterator(unmod));
    assertSame(unmod, Iterators.unmodifiableIterator((Iterator<String>) unmod));
  }

  @SuppressWarnings({"deprecation", "InlineMeInliner"}) // test of a deprecated method

    /**
     * @throws Exception
     */
    public void testToBigDecimal() throws Exception {
        assertNull(BigDecimalConversionUtil.toBigDecimal(null));
        assertSame(ZERO, BigDecimalConversionUtil.toBigDecimal(ZERO));
        assertEquals(new BigDecimal("1"), BigDecimalConversionUtil.toBigDecimal(Byte.valueOf((byte) 1)));