### Question:
Formats { public static String rightStr(String str, int length) { return str.substring(Math.max(0, str.length() - length)); }  static void disableAnsi(); static void setCleanClearTerminal(); static void setTextClearTerminal(); static String toMBWithColor(long bytes, LongWarning warning); static String toColor(long value, LongWarning warning); static String red(String value); static String yellow(String value); static String toMB(long bytes); static String toSizeUnitWithColor(Long size, LongWarning warning); static String toSizeUnit(Long size); static String toFixLengthSizeUnit(Long size); static String toTimeUnit(long millis); static String formatUsage(Usage usage); static String formatUsageWithColor(Usage usage, LongWarning warning); static String[] colorAnsi(long value, LongWarning warning); static String[] colorAnsi(double value, DoubleWarning warning); static String rightStr(String str, int length); static String leftStr(String str, int length); static String shortName(String str, int length, int rightLength); static String join(List<String> list, String delim); static long parseFromSize(String str); static void clearTerminal(); static final long MB_SIZE; static boolean isWindows; }### Answer:
@Test public void rightStrInputNotNullNegativeOutputStringIndexOutOfBoundsException() { final String str = "!!!!!!!!"; final int length = -1_048_568; thrown.expect(StringIndexOutOfBoundsException.class); Formats.rightStr(str, length); }
@Test public void rightStrInputNotNullPositiveOutputNotNull() { final String str = "!!!!!!!!"; final int length = 2_147_221_512; final String retval = Formats.rightStr(str, length); Assert.assertEquals("!!!!!!!!", retval); }