diff --git a/poi-scratchpad/src/test/java/org/apache/poi/hslf/TestHSLFParser.java b/poi-scratchpad/src/test/java/org/apache/poi/hslf/TestHSLFParser.java
new file mode 100644
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--- /dev/null
+++ b/poi-scratchpad/src/test/java/org/apache/poi/hslf/TestHSLFParser.java
@@ -0,0 +1,50 @@
+/* ====================================================================
+   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.
+==================================================================== */
+
+package org.apache.poi.hslf;
+
+import java.io.InputStream;
+
+import org.apache.poi.hslf.usermodel.HSLFSlideShow;
+import org.apache.poi.poifs.filesystem.OfficeXmlFileException;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertInstanceOf;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertThrows;
+
+public class TestHSLFParser {
+    @Test
+    void testPpt() throws Exception {
+        try (
+                InputStream stream = HSLFTestDataSamples.openSampleFileStream("numbers.ppt");
+                HSLFSlideShow ss = HSLFParser.parse(stream)
+        ) {
+            assertNotNull(ss);
+            assertEquals(2, ss.getSlides().size());
+        }
+    }
+
+    @Test
+    void testFailOnPptx() throws Exception {
+        try (InputStream stream = HSLFTestDataSamples.openSampleFileStream("sample.pptx")) {
+            HSLFReadException hre = assertThrows(HSLFReadException.class, () -> HSLFParser.parse(stream));
+            assertInstanceOf(OfficeXmlFileException.class, hre.getCause());
+        }
+    }
+}