Move test from samples internal repository

DEVSIX-3737

Author: AlexanderRasolko

kernel/src/test/java/com/itextpdf/kernel/pdf/PdfReaderTest.java

@@ -48,7 +48,6 @@ This file is part of the iText (R) project.
 import com.itextpdf.io.util.FileUtil;
 import com.itextpdf.io.util.MessageFormatUtil;
 import com.itextpdf.kernel.PdfException;
-import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
 import com.itextpdf.kernel.utils.CompareTool;
 import com.itextpdf.test.ExtendedITextTest;
 import com.itextpdf.test.annotations.LogMessage;
@@ -62,7 +61,6 @@ This file is part of the iText (R) project.
 import org.junit.experimental.categories.Category;
 import org.junit.rules.ExpectedException;
 
-import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.IOException;
 import java.io.OutputStream;
@@ -2020,6 +2018,12 @@ protected void readPdf() throws IOException {
         readingNotCompletedTest(isEncryptedReader);
     }
 
+    @Test
+    public void pdf11VersionValidTest() throws IOException {
+        String fileName = sourceFolder + "pdf11Version.pdf";
+        new PdfDocument(new PdfReader(fileName));
+    }
+
     private PdfReader pdfDocumentNotReadTestInit() throws IOException {
         String filename = sourceFolder + "XrefWithNullOffsets.pdf";