fdo#74566:DOCX: Preservation <w:br> tag for Break to Next Page

Issue :
'Break to Next Page' gets converted to 'Page Break Before'
in RT.

XML diffrenece :
- LO exports <w:br> as <w:pageBreakBefore /> in document.xml
- The page break is written into wrong paragraph.

Implementation :
1] Removed implementation to export <w:pageBreakBefore />.
2] Added a check to write <w:br> in correct paragraph.
3] Modified code to handle SectionBreak() even if Text node
has no string.
It is required when DOCX contains a PageBreak with footer.
4] Written Export Unit Test case.

Conflicts:
sw/qa/extras/ooxmlexport/ooxmlexport.cxx
Reviewed on:
https://gerrit.libreoffice.org/7891

Change-Id: I237b9c5fdd3083b441f6e81cd8442f458eccf1a0

2 files changed, 20 insertions, 0 deletions

diff --git a/sw/qa/extras/ooxmlexport/data/fdo74566.docx b/sw/qa/extras/ooxmlexport/data/fdo74566.docx
new file mode 100644
index 000000000000..b197b946a4a8
--- /dev/null
+++ b/sw/qa/extras/ooxmlexport/data/fdo74566.docx
diff --git a/sw/qa/extras/ooxmlexport/ooxmlexport.cxx b/sw/qa/extras/ooxmlexport/ooxmlexport.cxx
index 194b7c6d582b..73d3393d8f2d 100644
--- a/sw/qa/extras/ooxmlexport/ooxmlexport.cxx
+++ b/sw/qa/extras/ooxmlexport/ooxmlexport.cxx
@@ -3641,6 +3641,26 @@ DECLARE_OOXMLEXPORT_TEST(testFooterContainHyperlink,"footer-contain-hyperlink.do
     // Check the value of Target which is http://www.google.com/.
     assertXPath(pXmlRels,"/rels:Relationships/rels:Relationship","Target","http://www.google.com/");
 }
+
+DECLARE_OOXMLEXPORT_TEST(testPageBreak,"fdo74566.docx")
+{
+    /*  Break to next page was written into wrong paragraph as <w:pageBreakBefore />.
+     *  LO was not preserving Page Break as <w:br w:type="page" />.
+     *  Now after fix , LO writes Page Break as the new paragraph and also
+     *  preserves the xml tag <w:br>.
+     */
+    xmlDocPtr pXmlDoc = parseExport("word/document.xml");
+    if (!pXmlDoc)
+        return;
+
+    uno::Reference<text::XTextRange> xParagraph2 = getParagraph(2);
+    uno::Reference<text::XTextRange> xParagraph4 = getParagraph(4);
+
+    getRun(xParagraph2, 1, "First Page Second Line");
+    assertXPath(pXmlDoc, "/w:document/w:body/w:p[3]/w:r[2]/w:br","type","page");
+    getRun(xParagraph4, 1, "Second Page First line after Page Break");
+}
+
 #endif
 
 CPPUNIT_PLUGIN_IMPLEMENT();