### Question:
SvgConvertUtils { public static String replicateHexNotation(CharSequence hexColor) { StringBuilder stringBuilder = new StringBuilder(); stringBuilder.append(hexColor.charAt(0)); stringBuilder.append(hexColor.charAt(0)); stringBuilder.append(hexColor.charAt(1)); stringBuilder.append(hexColor.charAt(1)); stringBuilder.append(hexColor.charAt(2)); stringBuilder.append(hexColor.charAt(2)); return stringBuilder.toString(); }  static SvgGroup getSvgGroup(Element element); static SvgImage getSvgImage(Element element); static SvgPath getSvgPath(Element element); static Vector2f[] pathDataToVector2fList(String d); static Color fillColorFromStyle(String style); static Color fillColorFromStyle(Color color, String style); static String getFillFromStyle(String style); static String getFillOpacityFromStyle(String style); static String replicateHexNotation(CharSequence hexColor); static Color colorValue(String colorValue); static Color colorValue(Color color, String colorValue); static float opacityValue(String opacityValue); static SvgElementConverter<SvgGroup> groupConverter(); static SvgElementConverter<SvgImage> imageConverter(); static SvgElementConverter<SvgPath> pathConverter();  }### Answer:
@Test public void testReplicateHexNotation() { String replicateHexNotation = SvgConvertUtils.replicateHexNotation("FFF"); assertEquals("FFFFFF", replicateHexNotation); }