Index: IdeaModuleMojo.java
===================================================================
--- IdeaModuleMojo.java	(revision 599652)
+++ IdeaModuleMojo.java	(working copy)
@@ -948,15 +948,34 @@
             return null;
         }
 
+        String type = artifact.getType();
+        boolean testSources = "test-jar".equals(type) && "sources".equals(classifier);
+        if (testSources)
+        {
+            // test-jar sources are really a combined classifier: test-sources accordining to wagon
+            type = "jar";
+            classifier = "test-sources";
+        }
+
         List remoteRepos = executedProject.getRemoteArtifactRepositories();
         try
         {
             Artifact classifiedArtifact = artifactFactory.createArtifactWithClassifier( artifact.getGroupId(),
                                                                                         artifact.getArtifactId(),
                                                                                         artifact.getVersion(),
-                                                                                        artifact.getType(),
+                                                                                        type,
                                                                                         classifier );
-            String dstFilename = basePath.substring( 0, delIndex ) + '-' + classifier + ".jar";
+            String dstFilename;
+            if (testSources)
+            {
+                // since the classifier and type have changed, remove -tests from the destination file name
+                // so we can append -test-sources
+                dstFilename = basePath.substring( 0, delIndex - 6 ) + '-' + classifier + ".jar";
+            }
+            else
+            {
+                dstFilename = basePath.substring( 0, delIndex ) + '-' + classifier + ".jar";
+            }
             File dstFile = new File( dstFilename );
             classifiedArtifact.setFile( dstFile );
             //this check is here because wagonManager does not seem to check if the remote file is newer