Package org.hamcrest.core
Class IsInstanceOf
- java.lang.Object
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- org.hamcrest.BaseMatcher<T>
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- org.hamcrest.DiagnosingMatcher<java.lang.Object>
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- org.hamcrest.core.IsInstanceOf
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- All Implemented Interfaces:
Matcher<java.lang.Object>
,SelfDescribing
public class IsInstanceOf extends DiagnosingMatcher<java.lang.Object>
Tests whether the value is an instance of a class. Classes of basic types will be converted to the relevant "Object" classes
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Constructor Summary
Constructors Constructor Description IsInstanceOf(java.lang.Class<?> expectedClass)
Creates a new instance of IsInstanceOf
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static <T> Matcher<T>
any(java.lang.Class<T> type)
Creates a matcher that matches when the examined object is an instance of the specifiedtype
, as determined by calling theClass.isInstance(Object)
method on that type, passing the the examined object.void
describeTo(Description description)
Generates a description of the object.static <T> Matcher<T>
instanceOf(java.lang.Class<?> type)
Creates a matcher that matches when the examined object is an instance of the specifiedtype
, as determined by calling theClass.isInstance(Object)
method on that type, passing the the examined object.protected boolean
matches(java.lang.Object item, Description mismatch)
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Methods inherited from class org.hamcrest.DiagnosingMatcher
describeMismatch, matches
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Methods inherited from class org.hamcrest.BaseMatcher
_dont_implement_Matcher___instead_extend_BaseMatcher_, toString
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Method Detail
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matches
protected boolean matches(java.lang.Object item, Description mismatch)
- Specified by:
matches
in classDiagnosingMatcher<java.lang.Object>
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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.
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instanceOf
public static <T> Matcher<T> instanceOf(java.lang.Class<?> type)
Creates a matcher that matches when the examined object is an instance of the specifiedtype
, as determined by calling theClass.isInstance(Object)
method on that type, passing the the examined object.The created matcher assumes no relationship between specified type and the examined object.
For example:assertThat(new Canoe(), instanceOf(Paddlable.class));
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any
public static <T> Matcher<T> any(java.lang.Class<T> type)
Creates a matcher that matches when the examined object is an instance of the specifiedtype
, as determined by calling theClass.isInstance(Object)
method on that type, passing the the examined object.The created matcher forces a relationship between specified type and the examined object, and should be used when it is necessary to make generics conform, for example in the JMock clause
For example:with(any(Thing.class))
assertThat(new Canoe(), instanceOf(Canoe.class));
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