From Bug 38289: Yegor's support for pictures embeded in PPT files

git-svn-id: https://svn.apache.org/repos/asf/jakarta/poi/trunk@369541 13f79535-47bb-0310-9956-ffa450edef68

src/scratchpad/testcases/org/apache/poi/hslf/usermodel/TestPictures.java

@@ -0,0 +1,47 @@
+/* ====================================================================
+   Copyright 2002-2004   Apache Software Foundation
+
+   Licensed 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.usermodel;
+
+import org.apache.poi.hslf.*;
+import junit.framework.TestCase;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayInputStream;
+
+/**
+ * Test extracting images from a ppt file
+ *
+ * @author Yegor Kozlov
+ */
+public class TestPictures extends TestCase{
+
+    public void testPictures() throws Exception {
+        String dirname = System.getProperty("HSLF.testdata.path");
+        String filename = dirname + "/ppt_with_png.ppt";
+
+        HSLFSlideShow ppt = new HSLFSlideShow(filename);
+        Picture[] pict = ppt.getPictures();
+        assertNotNull(pict);
+        for (int i = 0; i < pict.length; i++) {
+            byte[] data = pict[i].getData();
+            BufferedImage img = ImageIO.read(new ByteArrayInputStream(data));
+            assertNotNull(img);
+        }
+        ppt.close();
+    }
+}