### Question:
ColorUtil { public static String wrapWithColorTag(final String str, final Color color) { return prependColorTag(str, color) + CLOSING_COLOR_TAG; }  static String colorTag(Color color); static String prependColorTag(final String str, final Color color); static String wrapWithColorTag(final String str, final Color color); static String toHexColor(final Color color); static Color colorLerp(final Color a, final Color b, final double t); static String colorToHexCode(final Color color); static String colorToAlphaHexCode(final Color color); static boolean isAlphaHex(String hex); static boolean isHex(String hex); static int constrainValue(int value); static Color fromString(String string); static Color fromHex(String hex); static final int MAX_RGB_VALUE; static final int MIN_RGB_VALUE; }### Answer:
@Test public void wrapWithColorTag() { COLOR_HEXSTRING_MAP.forEach((color, hex) -> { assertEquals("<col=" + hex + ">test</col>", ColorUtil.wrapWithColorTag("test", color)); assertEquals("<col=" + hex + "></col>", ColorUtil.wrapWithColorTag("", color)); }); }