org.hamcrest.core
Class IsSame<T>

java.lang.Object
  extended by org.hamcrest.BaseMatcher<T>
      extended by org.hamcrest.core.IsSame<T>
All Implemented Interfaces:
Matcher<T>, SelfDescribing

public class IsSame<T>
extends BaseMatcher<T>

Is the value the same object as another value?


Constructor Summary
IsSame(T object)
           
 
Method Summary
 void describeTo(Description description)
          Generates a description of the object.
 boolean matches(Object arg)
          Evaluates the matcher for argument item.
static
<T> Matcher<T>
sameInstance(T target)
          Creates a matcher that matches only when the examined object is the same instance as the specified target object.
static
<T> Matcher<T>
theInstance(T target)
          Creates a matcher that matches only when the examined object is the same instance as the specified target object.
 
Methods inherited from class org.hamcrest.BaseMatcher
_dont_implement_Matcher___instead_extend_BaseMatcher_, describeMismatch, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

IsSame

public IsSame(T object)
Method Detail

matches

public boolean matches(Object arg)
Description copied from interface: Matcher
Evaluates the matcher for argument item.

This method matches against Object, instead of the generic type T. This is because the caller of the Matcher does not know at runtime what the type is (because of type erasure with Java generics). It is down to the implementations to check the correct type.

Parameters:
arg - the object against which the matcher is evaluated.
Returns:
true if item matches, otherwise false.
See Also:
BaseMatcher

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.

sameInstance

public static <T> Matcher<T> sameInstance(T target)
Creates a matcher that matches only when the examined object is the same instance as the specified target object.

Parameters:
target - the target instance against which others should be assessed

theInstance

public static <T> Matcher<T> theInstance(T target)
Creates a matcher that matches only when the examined object is the same instance as the specified target object.

Parameters:
target - the target instance against which others should be assessed


Copyright © 2002–2017 JUnit. All rights reserved.