[Junit-trackers] [ junit-Feature Requests-2149557 ] assertThat generics enhancement

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Feature Requests item #2149557, was opened at 2008-10-06 14:59
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Dominic Mitchell (dom2)
Assigned to: Nobody/Anonymous (nobody)
Summary: assertThat generics enhancement

Initial Comment:
It would be really nice if assertThat() allowed a subclass to match.  i.e.

  public static <T> void assertThat(T actual, Matcher<? extends T> matcher) {  }

Why does this matter?  At the moment, I'm testing things that are coming out of a ServletContext.  And ServletContext.getAttribute() returns an Object.  And I'd like to be able to say:

  assertThat(context.getAttribute("foo"), is("bar"));

But eclipse complains with "The method assertThat(T, Matcher<T>) in the type Assert is no applicable for the arguments  (Object, Matcher<String>).


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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=365278&aid=2149557&group_id=15278