Package org.hamcrest.number
Class IsCloseTo
- All Implemented Interfaces:
Matcher<Double>
,SelfDescribing
Is the value a number equal to a value within some range of
acceptable error?
-
Field Summary
Fields -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprivate double
actualDelta
(Double item) closeTo
(double operand, double error) Creates a matcher ofDouble
s that matches when an examined double is equal to the specifiedoperand
, within a range of +/-error
.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.Methods inherited from class org.hamcrest.TypeSafeMatcher
describeMismatch, matches
Methods inherited from class org.hamcrest.BaseMatcher
_dont_implement_Matcher___instead_extend_BaseMatcher_, isNotNull, toString
-
Field Details
-
delta
private final double delta -
value
private final double value
-
-
Constructor Details
-
IsCloseTo
public IsCloseTo(double value, double error)
-
-
Method Details
-
matchesSafely
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 classTypeSafeMatcher<Double>
-
describeMismatchSafely
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 classTypeSafeMatcher<Double>
-
describeTo
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.
-
actualDelta
-
closeTo
Creates a matcher ofDouble
s that matches when an examined double is equal to the specifiedoperand
, within a range of +/-error
. For example:assertThat(1.03, is(closeTo(1.0, 0.03)))
- Parameters:
operand
- the expected value of matching doubleserror
- the delta (+/-) within which matches will be allowed
-