IsNaN

java.lang.Object

org.hamcrest.BaseMatcher<Double>

org.hamcrest.TypeSafeMatcher<Double>

org.hamcrest.number.IsNaN

All Implemented Interfaces:: Matcher<Double>, SelfDescribing

public final class IsNaN extends TypeSafeMatcher<Double>

Is the value a number actually not a number (NaN)?

Constructor Summary

Constructors

Modifier

Constructor

Description

private

IsNaN()
Method Summary

Modifier and Type

Method

Description

void

describeMismatchSafely(Double item, Description mismatchDescription)

Subclasses should override this.

void

describeTo(Description description)

Generates a description of the object.

boolean

matchesSafely(Double item)

Subclasses should implement this.

static Matcher<Double>

notANumber()

Creates a matcher of Doubles that matches when an examined double is not a number.

Methods inherited from class org.hamcrest.TypeSafeMatcher
describeMismatch, matches

Methods inherited from class org.hamcrest.BaseMatcher
_dont_implement_Matcher___instead_extend_BaseMatcher_, isNotNull, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details
- IsNaN
  
  private IsNaN()
Method Details
- matchesSafely
  
  public boolean matchesSafely(Double item)
  
  Description copied from class: TypeSafeMatcher
  
  Subclasses should implement this. The item will already have been checked for the specific type and will never be null.
  
  Specified by:
  
  matchesSafely in class TypeSafeMatcher<Double>
- describeMismatchSafely
  
  public void describeMismatchSafely(Double item, Description mismatchDescription)
  
  Description copied from class: TypeSafeMatcher
  
  Subclasses should override this. The item will already have been checked for the specific type and will never be null.
  
  Overrides:
  
  describeMismatchSafely in class TypeSafeMatcher<Double>
- describeTo
  
  public void describeTo(Description description)
  
  Description copied from interface: SelfDescribing
  
  Generates a description of the object. The description may be part of a a description of a larger object of which this is just a component, so it should be worded appropriately.
  
  Parameters:
  
  description - The description to be built or appended to.
- notANumber
  
  public static Matcher<Double> notANumber()
  Creates a matcher of Doubles that matches when an examined double is not a number. For example:
  assertThat(Double.NaN, is(notANumber()))