Add an item to verify that slideshows can be opened

This verifies that the issue in #103 cannot be reproduced

poitest/src/main/java/org/dstadler/poiandroidtest/poitest/MainActivity.java

@@ -280,6 +280,7 @@ private void setupContent() throws IOException {
 			StringBuilder text = new StringBuilder();
 			for (int resource : new int[] {
 					R.raw.simple,
+					R.raw.sample2,
 					R.raw.sample,
 					R.raw.lorem_ipsum,
 			} ) {
@@ -292,6 +293,15 @@ private void setupContent() throws IOException {
 			return "Issue 98 - Had text: " + text;
 		}));
 
+		// reproducer for https://github.com/centic9/poi-on-android/issues/103
+		DummyContent.addItem(new DummyItemWithCode("c" + (idCount++), "Test Issue 103", () -> {
+			try (InputStream inputStream = getResources().openRawResource(R.raw.sample);
+				XMLSlideShow slideShow = new XMLSlideShow(inputStream)) {
+
+				return "Issue 103 - XMLSlideShow constructed successfully: " + slideShow.getSlides().size();
+			}
+		}));
+
 		try (InputStream docFile = getResources().openRawResource(R.raw.lorem_ipsum)) {
 			XWPFDocument doc = new XWPFDocument(docFile);
 			try {