[DOXIA-535] reworked multiple extensions support after constructors change in r1726537

git-svn-id: https://svn.apache.org/repos/asf/maven/doxia/doxia/trunk@1726538 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/doxia-modules/doxia-module-markdown/src/main/java/org/apache/maven/doxia/module/markdown/MarkdownParserModule.java b/doxia-modules/doxia-module-markdown/src/main/java/org/apache/maven/doxia/module/markdown/MarkdownParserModule.java
index 6993634..0e1e9a1 100644
--- a/doxia-modules/doxia-module-markdown/src/main/java/org/apache/maven/doxia/module/markdown/MarkdownParserModule.java
+++ b/doxia-modules/doxia-module-markdown/src/main/java/org/apache/maven/doxia/module/markdown/MarkdownParserModule.java
@@ -43,10 +43,10 @@
     public static final String ALTERNATE_FILE_EXTENSION = "markdown";
 
     /**
-     * Build a new instance of {@link MarkdownSiteModule}.
+     * Build a new instance of {@link MarkdownParserModule}.
      */
     public MarkdownParserModule()
     {
-        super( MarkdownParser.ROLE_HINT, FILE_EXTENSION, ALTERNATE_FILE_EXTENSION );
+        super( MarkdownParser.ROLE_HINT, MarkdownParser.ROLE_HINT, FILE_EXTENSION, ALTERNATE_FILE_EXTENSION );
     }
 }
diff --git a/doxia-modules/doxia-module-markdown/src/test/java/org/apache/maven/doxia/module/markdown/MarkdownParserModuleTest.java b/doxia-modules/doxia-module-markdown/src/test/java/org/apache/maven/doxia/module/markdown/MarkdownParserModuleTest.java
new file mode 100644
index 0000000..4895969
--- /dev/null
+++ b/doxia-modules/doxia-module-markdown/src/test/java/org/apache/maven/doxia/module/markdown/MarkdownParserModuleTest.java
@@ -0,0 +1,51 @@
+package org.apache.maven.doxia.module.markdown;
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import org.apache.maven.doxia.parser.module.ParserModule;
+import org.codehaus.plexus.PlexusTestCase;
+
+/**
+ * Test MarkdownParserModule.
+ */
+public class MarkdownParserModuleTest
+    extends PlexusTestCase
+{
+    /**
+     * The {@link MarkdownParser} used for the tests.
+     */
+    protected MarkdownParserModule parserModule;
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    protected void setUp()
+        throws Exception
+    {
+        super.setUp();
+        parserModule = (MarkdownParserModule) lookup( ParserModule.class, MarkdownParser.ROLE_HINT );
+    }
+
+    public void testExtensions()
+    {
+        assertEquals( 2, parserModule.getExtensions().length );
+    }
+}