diff --git a/plugin/plugin.jelly b/plugin/plugin.jelly
index b8573e55..18093259 100644
--- a/plugin/plugin.jelly
+++ b/plugin/plugin.jelly
@@ -5,6 +5,7 @@
   xmlns:j="jelly:core"
   xmlns:maven="jelly:maven"
   xmlns:u="jelly:util"
+  xmlns:define="jelly:define"
   xmlns:x="jelly:xml">
   
   <goal name="plugin"
@@ -231,7 +232,13 @@
       </delete>
     </j:if>
   </goal>
-  
+
+  <!--
+     ========================================================================
+       Goals and tags used for testing Maven plugins.
+     ========================================================================
+  -->
+    
   <!-- test a plugin -->
   <goal name="plugin:test">
     <u:available file="${basedir}/src/plugin-test/project.xml">
@@ -241,4 +248,15 @@
         ignoreFailures="false" />
     </u:available>
   </goal>
+
+  <define:taglib uri="assert">
+    <define:tag name="assertFileExists">
+      <!-- @file : Full file path -->
+      <u:file var="fileAsFile" name="${file}"/>
+      <j:if test="${!(fileAsFile.exists())}">
+        <ant:fail>${file} does not exist</ant:fail>
+      </j:if>      
+    </define:tag>
+  </define:taglib>
+
 </project>
diff --git a/plugin/xdocs/changes.xml b/plugin/xdocs/changes.xml
index 75348409..882aca6d 100644
--- a/plugin/xdocs/changes.xml
+++ b/plugin/xdocs/changes.xml
@@ -7,7 +7,13 @@
 
   <body>
     <release version="1.2" date="in CVS">
-      <action dev="dion" type="add">Add plugin:test goal</action>
+      <action dev="vmassol" type="add">
+        Added assert:assertFileExists tag to verify if a file exists while
+        testing a plugin.
+      </action>
+      <action dev="dion" type="add">
+        Add plugin:test goal
+      </action>
     </release>
     
 	<release version="1.1" date="2003-09-29">
