### Question:
ValueUtil { public static boolean displayHasValidDisplayLimits(Display display) { if (display.getLowerDisplayLimit() == null || display.getLowerDisplayLimit().isNaN()) { return false; } if (display.getUpperDisplayLimit() == null || display.getUpperDisplayLimit().isNaN()) { return false; } return true; } private  ValueUtil(); static Class<?> typeOf(Object obj); static Alarm alarmOf(Object obj); static Alarm alarmOf(Object value, boolean connected); static Alarm highestSeverityOf(final List<Object> args, final boolean considerNull); static Time latestTimeOf(final List<Object> args); static Time latestValidTimeOrNowOf(final List<Object> args); static Time timeOf(Object obj); static Display displayOf(Object obj); static boolean displayHasValidDisplayLimits(Display display); static Double normalizedNumericValueOf(Object obj); static Double normalize(Number value, Display display); static Double normalize(Number value, Number lowValue, Number highValue); static Double numericValueOf(Object obj); static BufferedImage toImage(VImage vImage); static VImage toVImage(BufferedImage image); static boolean displayEquals(Display d1, Display d2); static void setAlarmSeverityColorMap(Map<AlarmSeverity, Integer> map); static int colorFor(AlarmSeverity severity); static DateTimeFormatter getDefaultTimestampFormat(); static void setDefaultTimestampFormat(DateTimeFormatter defaultTimestampFormat); static NumberFormat getDefaultNumberFormat(); static void setDefaultNumberFormat(NumberFormat defaultNumberFormat); static ValueFormat getDefaultValueFormat(); static void setDefaultValueFormat(ValueFormat defaultValueFormat); static ListNumber numericColumnOf(VTable table, String columnName); static List<String> stringColumnOf(VTable table, String columnName); static List<ArrayDimensionDisplay> defaultArrayDisplay(VNumberArray array); static List<ArrayDimensionDisplay> defaultArrayDisplay(ListInt sizes); static VNumberArray subArray(VNumberArray array, int index);  }### Answer:
@Test public void displayHasValidDisplayLimits1() { assertThat(displayHasValidDisplayLimits(displayNone()), equalTo(false)); }
@Test public void displayHasValidDisplayLimits2() { Display display1 = newDisplay(0.0, 1.0, 2.0, "", NumberFormats.toStringFormat(), 8.0, 9.0, 10.0, 0.0, 10.0); assertThat(displayHasValidDisplayLimits(display1), equalTo(true)); }