Package org.hamcrest.core

Class IsInstanceOf

    • Constructor Detail

      • IsInstanceOf

        public IsInstanceOf​(Class<?> expectedClass)
        Creates a new instance of IsInstanceOf
        Parameters:
        expectedClass - The predicate evaluates to true for instances of this class or one of its subclasses.

    • Method Detail

      • 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.

      • instanceOf

        public static <T> Matcher<T> instanceOf​(Class<?> type)
        Creates a matcher that matches when the examined object is an instance of the specified type, as determined by calling the Class.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));

      • any

        public static <T> Matcher<T> any​(Class<T> type)
        Creates a matcher that matches when the examined object is an instance of the specified type, as determined by calling the Class.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 with(any(Thing.class))

        For example: 

        assertThat(new Canoe(), instanceOf(Canoe.class));