org.djunits.value.formatter

Class EngineeringFormatterTest

java.lang.Object

org.djunits.value.formatter.EngineeringFormatterTest

public class EngineeringFormatterTest
extends Object

Test the Engineering formatter

Copyright (c) 2015-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See DJUNITS License.

Version:

$Revision: 324 $, $LastChangedDate: 2019-01-18 00:35:01 +0100 (Fri, 18 Jan 2019) $, by $Author: averbraeck $, initial version 11 sep. 2015

Author:

Peter Knoppers

Constructor Summary

Constructors

Constructor and Description
EngineeringFormatterTest()

Method Summary

Modifier and Type	Method and Description
void	constructorTest() See if we can increase the code coverage to include the private constructor.
static String	convertAndVerify(double val, int room) Call convert and then verify that the result is an accurate representation of the value.
void	doULPTest() Test cleverly chosen values plus and minus one ULP.
void	doWidthTest() Check that values are formatted at optimal precision when the room is varied.
static void	testD(double d, int width) Print result of main value and value plus or minus one ULP.
void	ulpTest() Run ulpTest with both values of the parameter.
static void	verifyResult(double value, String text, int room) Check that a double value is represented by a string as accurately as possible; i.e.
void	widthTest() Run widthTest with both values of the parameter.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EngineeringFormatterTest

public EngineeringFormatterTest()

Method Detail

constructorTest

public final void constructorTest()
                           throws InstantiationException,
                                  IllegalAccessException,
                                  IllegalArgumentException,
                                  InvocationTargetException

See if we can increase the code coverage to include the private constructor.

Throws:

InstantiationException - on reflection error

IllegalAccessException - on reflection error

IllegalArgumentException - on reflection error

InvocationTargetException - on reflection error

ulpTest

public final void ulpTest()

Run ulpTest with both values of the parameter.

doULPTest

public final void doULPTest()

Test cleverly chosen values plus and minus one ULP.

widthTest

public final void widthTest()

Run widthTest with both values of the parameter.

doWidthTest

public final void doWidthTest()

Check that values are formatted at optimal precision when the room is varied.

testD

public static void testD(double d,
                         int width)

Print result of main value and value plus or minus one ULP.

Parameters:

d - double; the value

width - int; width parameter of the converter

convertAndVerify

public static String convertAndVerify(double val,
                                      int room)

Call convert and then verify that the result is an accurate representation of the value.

Parameters:

val - double; value to convert

room - int; width of the output of convert

Returns:

String; the converted value

verifyResult

public static void verifyResult(double value,
                                String text,
                                int room)

Check that a double value is represented by a string as accurately as possible; i.e. the last digit in the mantissa is rounded correctly.

Parameters:

value - double; the value

text - String; the textual representation of value

room - int; the expected length of the text