org.hamcrest
Class CustomTypeSafeMatcher<T>

java.lang.Object
  org.hamcrest.BaseMatcher<T>
      org.hamcrest.TypeSafeMatcher<T>
          org.hamcrest.CustomTypeSafeMatcher<T>

Type Parameters:

T - The type of object being matched

All Implemented Interfaces:

Matcher<T>, SelfDescribing

public abstract class CustomTypeSafeMatcher<T>
   

    extends 
    TypeSafeMatcher<T>
   

Utility class for writing one off matchers. For example:

 Matcher<String> aNonEmptyString = new CustomTypeSafeMatcher<String>("a non empty string") {
   public boolean matchesSafely(String string) {
     return !string.isEmpty();
   }
   public void describeMismatchSafely(String string, Description mismatchDescription) {
     mismatchDescription.appendText("was empty");
   }
 };
 

This is a variant of CustomMatcher that first type checks the argument being matched. By the time TypeSafeMatcher.matchesSafely(T) is is called the argument is guaranteed to be non-null and of the correct type.

         

CustomTypeSafeMatcher

public CustomTypeSafeMatcher(String description)

describeTo

public final 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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