PDFBOX-6127: add comment, make sure that the intermediate data contains the test sequence, improve formatting

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1930810 13f79535-47bb-0310-9956-ffa450edef68

Author: THausherr

xmpbox/src/test/java/org/apache/xmpbox/xml/DomXmpParserTest.java

@@ -998,14 +998,17 @@ void testPDFBOX6126() throws XmpParsingException, BadFieldValueException, Transf
     @Test
     void testNonStandardURIinRDF() throws XmpParsingException, TransformerException
     {
-        String s = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n" +
-"<?xpacket begin=\"\" id=\"W5M0MpCehiHzreSzNTczkc9d\"?><x:xmpmeta xmlns:x=\"adobe:ns:meta/\" x:xmptk=\"Adobe XMP Core 4.2.1-c041 52.342996, 2008/05/07-20:48:00        \">\n" +
-"    <rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\">\n" +
-"        <rdf:Description xmlns:pdfx=\"http://ns.adobe.com/pdfx/1.3/\" rdf:about=\"\">\n" +
-"            <pdfx:XPressPrivate>private</pdfx:XPressPrivate>\n" +
-"        </rdf:Description>\n" +
-"    </rdf:RDF>\n" +
-"</x:xmpmeta><?xpacket end=\"w\"?>";
+        // PDFBOX-6127: test that non standard namespaces not recognized if in rdf:RDF,
+        // which happens since the changes in XmpSerializer done in PDFBOX-2378.
+        String s =
+                "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\n" +
+                "<?xpacket begin=\"\" id=\"W5M0MpCehiHzreSzNTczkc9d\"?><x:xmpmeta xmlns:x=\"adobe:ns:meta/\" x:xmptk=\"Adobe XMP Core 4.2.1-c041 52.342996, 2008/05/07-20:48:00        \">\n" +
+                "    <rdf:RDF xmlns:rdf=\"http://www.w3.org/1999/02/22-rdf-syntax-ns#\">\n" +
+                "        <rdf:Description xmlns:pdfx=\"http://ns.adobe.com/pdfx/1.3/\" rdf:about=\"\">\n" +
+                "            <pdfx:XPressPrivate>private</pdfx:XPressPrivate>\n" +
+                "        </rdf:Description>\n" +
+                "    </rdf:RDF>\n" +
+                "</x:xmpmeta><?xpacket end=\"w\"?>";
         final DomXmpParser xmpParser1 = new DomXmpParser();
         XmpParsingException ex = assertThrows(XmpParsingException.class,
                 () -> xmpParser1.parse(s.getBytes(StandardCharsets.UTF_8)));
@@ -1018,6 +1021,8 @@ void testNonStandardURIinRDF() throws XmpParsingException, TransformerException
         XmpSerializer serializer = new XmpSerializer();
         ByteArrayOutputStream baos = new ByteArrayOutputStream();
         serializer.serialize(xmp2, baos, true);
+        // make sure that there is a non standard namespace in rdf:RDF
+        assertTrue(baos.toString(StandardCharsets.UTF_8).contains("<rdf:RDF xmlns:pdfx="));
         final DomXmpParser xmpParser3 = new DomXmpParser();
         ex = assertThrows(XmpParsingException.class, () -> xmpParser3.parse(baos.toByteArray()));
         assertEquals("Cannot find a definition for the namespace http://ns.adobe.com/pdfx/1.3/, property: pdfx:XPressPrivate", ex.getMessage());