expectfailure report the original build exception chained when failing

git-svn-id: https://svn.apache.org/repos/asf/ant/antlibs/antunit/trunk@718551 13f79535-47bb-0310-9956-ffa450edef68

changes.xml

@@ -37,6 +37,12 @@
     <title>Apache AntUnit</title>
   </properties>
 
+  <release version="1.2" date="not-released">
+    <action type="update">
+      expectfailure report the original build exception chained when failing
+    </action>
+  </release>
+  
   <release version="1.1" date="2008-09-26">
     <action type="fix" issue="42745">
       assertFileExists example wrong, should use @file instead of @name

src/main/org/apache/ant/antunit/AssertionFailedException.java

@@ -38,4 +38,8 @@ public class AssertionFailedException extends BuildException {
     public AssertionFailedException(String message, Location loc) {
         super(message, loc);
     }
+
+    public AssertionFailedException(String message, BuildException e) {
+        super(message , e);
+    }
 }

src/main/org/apache/ant/antunit/ExpectFailureTask.java

@@ -66,9 +66,9 @@ public class ExpectFailureTask extends Sequential {
                                     + "with message '"
                                     + expectedMessage
                                     + "' but was '"
-                                    + caughtMessage + "'");
+                                    + caughtMessage + "'" , e);
                 } else {
-                    throw new AssertionFailedException(message);
+                    throw new AssertionFailedException(message, e);
                 }
             }
         }