diff --git a/autotests/extractorcollectiontest.cpp b/autotests/extractorcollectiontest.cpp
index f177468..b9184c0 100644
--- a/autotests/extractorcollectiontest.cpp
+++ b/autotests/extractorcollectiontest.cpp
@@ -1,59 +1,75 @@
 /*
  * This file is part of the KDE KFileMetaData project
  * Copyright (C) 2014  Vishesh Handa <me@vhanda.in>
  *               2017  Igor Poboiko <igor.poboiko@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */
 
 #include <QObject>
 #include <QtTest>
 #include <QDebug>
 
 #include "extractorcollection.h"
-#include "extractors/plaintextextractor.h"
 
 using namespace KFileMetaData;
 
 class ExtractorCollectionTest : public QObject
 {
     Q_OBJECT
 private Q_SLOTS:
     void testFetchExtractors()
     {
         QCoreApplication::setLibraryPaths({QCoreApplication::applicationDirPath()});
         ExtractorCollection collection;
         QVERIFY(collection.fetchExtractors("unknown/mimetype").isEmpty());
         QVERIFY(!collection.fetchExtractors("text/plain").isEmpty());
     }
 
     void testMultipleExtractorCollections()
     {
         QCoreApplication::setLibraryPaths({QCoreApplication::applicationDirPath()});
         ExtractorCollection collection;
         QVERIFY(collection.fetchExtractors("unknown/mimetype").isEmpty());
         QVERIFY(!collection.fetchExtractors("text/plain").isEmpty());
         ExtractorCollection collection2;
         QVERIFY(collection.fetchExtractors("unknown/mimetype").isEmpty());
         QVERIFY(!collection.fetchExtractors("text/plain").isEmpty());
         QVERIFY(collection2.fetchExtractors("unknown/mimetype").isEmpty());
         QVERIFY(!collection2.fetchExtractors("text/plain").isEmpty());
     }
+
+    void testMimeInheritance()
+    {
+        QCoreApplication::setLibraryPaths({QCoreApplication::applicationDirPath()});
+        ExtractorCollection collection;
+
+        auto textExtractors = collection.fetchExtractors("text/plain");
+        QVERIFY(!textExtractors.isEmpty());
+
+        auto xmlExtractors = collection.fetchExtractors("application/xml");
+        QVERIFY(!xmlExtractors.isEmpty());
+
+        // Verify the generic "text/plain" extractor is not used for "application/xml"
+        for (auto extractor : textExtractors) {
+            QVERIFY(!xmlExtractors.contains(extractor));
+        }
+    }
 };
 
 QTEST_GUILESS_MAIN(ExtractorCollectionTest)
 
 #include "extractorcollectiontest.moc"