de.weltraumschaf.commons.testing.hamcrest

Class IntegerIsCloseTo

java.lang.Object

org.hamcrest.BaseMatcher<T>

org.hamcrest.TypeSafeMatcher<T>

de.weltraumschaf.commons.testing.hamcrest.BaseIsCloseTo<Integer>

de.weltraumschaf.commons.testing.hamcrest.IntegerIsCloseTo

All Implemented Interfaces:

Matcher<Integer>, SelfDescribing

final class IntegerIsCloseTo
extends BaseIsCloseTo<Integer>

Is the value a number equal to a value within some range of acceptable error?

Useful to match time values where you want to accept some delta.

Adapted from org.hamcrest.number.IsCloseTo for use with int values.

Since:

2.1.0

Author:

Sven Strittmatter <weltraumschaf@googlemail.com>

Constructor Summary

Constructors

Modifier	Constructor and Description
private	IntegerIsCloseTo(int value, int error) Dedicated constructor.

Method Summary

Modifier and Type	Method and Description
(package private) long	actualDelta(Integer item) Calculates the actual delta.
static Matcher<Integer>	closeTo(int operand, int error) Creates a matcher of Integers that matches when an examined intFF is equal to the specified operand, within a range of +/- error.

Methods inherited from class de.weltraumschaf.commons.testing.hamcrest.BaseIsCloseTo

describeMismatchSafely, describeTo, error, matched, matchesSafely

Methods inherited from class org.hamcrest.TypeSafeMatcher

describeMismatch, matches

Methods inherited from class org.hamcrest.BaseMatcher

_dont_implement_Matcher___instead_extend_BaseMatcher_, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

IntegerIsCloseTo

private IntegerIsCloseTo(int value,
                         int error)

Dedicated constructor.

Use closeTo(int, int) to create new instances.

Parameters:

value - matched value

error - accepted delta

Method Detail

actualDelta

long actualDelta(Integer item)

Description copied from class: BaseIsCloseTo

Calculates the actual delta.

Specified by:

actualDelta in class BaseIsCloseTo<Integer>

Parameters:

item - any long

Returns:

any long

closeTo

public static Matcher<Integer> closeTo(int operand,
                                       int error)

Creates a matcher of Integers that matches when an examined intFF is equal to the specified operand, within a range of +/- error.

For example:

 
 assertThat(103, is(closeTo(100, 3)))
 

Parameters:

operand - the expected value of matching doubles

error - the delta (+/-) within which matches will be allowed

Returns:

never null