Tags    []Tag    `xml:"Tag,omitempty" json:"Tag,omitempty"`
}

var errDuplicateTagKey = Errorf("Duplicate Tag Keys are not allowed")

// isEmpty returns true if Tags field is null
func (a And) isEmpty() bool {
	return len(a.Tags) == 0 && a.Prefix == ""
}

// Validate - validates the And field
func (a And) Validate() error {
	if a.ContainsDuplicateTag() {
		return errDuplicateTagKey
	}

  }

  @GwtIncompatible // works but takes 5 minutes to run
  public void testPeekingIteratorAcceptsNullElements() {
    actsLikeIteratorHelper(Lists.<@Nullable String>newArrayList(null, "A", null));
  }

  public void testPeekOnEmptyList() {
    List<?> list = emptyList();
    Iterator<?> iterator = list.iterator();
    PeekingIterator<?> peekingIterator = peekingIterator(iterator);

  }

  /** Returns the hash prefix given the current mask. */
  static int getHashPrefix(int value, int mask) {
    return value & ~mask;
  }

  /** Returns the index, or 0 if the entry is "null". */
  static int getNext(int entry, int mask) {
    return entry & mask;
  }

  /** Returns a new value combining the prefix and suffix using the given mask. */

        int len = smb.writeString(testString, buffer, 1);
        // When dstIndex=1 and headerStart=1, (1-1)%2=0, no alignment padding needed
        // Length is string bytes (15*2) + 2 null terminators = 32
        assertEquals(testString.length() * 2 + 2, len);
        String readString = smb.readString(buffer, 1);
        assertEquals(testString, readString);
    }

    @Test

                        .getSrcDirs()
                        .stream()
                        .filter(f -> f.isDirectory() && f.getName().equals("resources"))
                        .findFirst()
                        .orElse(null)
                );
                task.setSkipHasRestTestCheck(true);
                task.setConfigToFileTree(
                    config -> project.fileTree(

        assertEquals("", key);
    }

    @Test
    public void test_getHostKey_nullVirtualHost() {
        RelatedContent entity = createRelatedContent("term", "content", null);
        String key = relatedContentHelper.getHostKey(entity);
        assertEquals("", key);
    }

    @Test
    public void test_getHostKey_withVirtualHost() {

                }
            }
        }
    }

    private
    fun versionsDates(): Map<Version, String> {
        val versions = mutableMapOf<Version, String>()
        var version: String? = null
        parameters.releasedVersionsFile.get().asFile.forEachLine(Charsets.UTF_8) {
            val line = it.trim()
            if (line.startsWith("\"version\"")) {

            assertEquals(fileName, mockFileNotifyInfo.getFileName());
        }

        @Test
        @DisplayName("Test getFileName with null value")
        void testGetFileNameWithNull() {
            when(mockFileNotifyInfo.getFileName()).thenReturn(null);
            assertNull(mockFileNotifyInfo.getFileName());
        }
    }

    @Nested
    @DisplayName("Implementation Tests")

    static class DummyAndXBlock extends AndXServerMessageBlock {
        int paramWordsWritten = 0;
        int bytesWritten = 0;
        int paramWordsRead = 0;
        int bytesRead = 0;
        Integer customBatchLimit = null;

        DummyAndXBlock() {
            super();
        }

        DummyAndXBlock(ServerMessageBlock andx) {
            super(andx);
        }

        @Override

                else -> it
            }
        }

    private
    fun Parameters.buildReceiptString(): String? = when {
        ignoreIncomingBuildReceipt.get() -> null
        else -> buildReceiptFileContents.orNull
    }