Add a test to make sure we import docs with empty rows correctly.

The previous XSLT-based filter failed to import this correctly.

Change-Id: I6218bd2b3e5c5ac1514f84b959be27df23a0c3f8
Reviewed-on: https://gerrit.libreoffice.org/49907Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Kohei Yoshida <libreoffice@kohei.us>

sc/qa/unit/data/xml/empty-rows.xml

+<?xml version="1.0"?>
+<?mso-application progid="Excel.Sheet"?>
+<Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet"
+ xmlns:o="urn:schemas-microsoft-com:office:office"
+ xmlns:x="urn:schemas-microsoft-com:office:excel"
+ xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet"
+ xmlns:html="http://www.w3.org/TR/REC-html40">
+ <DocumentProperties xmlns="urn:schemas-microsoft-com:office:office">
+  <Author>Kohei Yoshida</Author>
+  <LastAuthor>Kohei Yoshida</LastAuthor>
+  <Created>2016-12-14T01:54:30Z</Created>
+  <LastSaved>2016-12-14T01:58:30Z</LastSaved>
+  <Version>15.00</Version>
+ </DocumentProperties>
+ <OfficeDocumentSettings xmlns="urn:schemas-microsoft-com:office:office">
+  <AllowPNG/>
+ </OfficeDocumentSettings>
+ <ExcelWorkbook xmlns="urn:schemas-microsoft-com:office:excel">
+  <WindowHeight>14385</WindowHeight>
+  <WindowWidth>24000</WindowWidth>
+  <WindowTopX>0</WindowTopX>
+  <WindowTopY>0</WindowTopY>
+  <ProtectStructure>False</ProtectStructure>
+  <ProtectWindows>False</ProtectWindows>
+ </ExcelWorkbook>
+ <Styles>
+  <Style ss:ID="Default" ss:Name="Normal">
+   <Alignment ss:Vertical="Bottom"/>
+   <Borders/>
+   <Font ss:FontName="Calibri" x:Family="Swiss" ss:Size="11" ss:Color="#000000"/>
+   <Interior/>
+   <NumberFormat/>
+   <Protection/>
+  </Style>
+ </Styles>
+ <Worksheet ss:Name="Sheet1">
+  <Table ss:ExpandedColumnCount="2" ss:ExpandedRowCount="9" x:FullColumns="1"
+   x:FullRows="1" ss:DefaultRowHeight="15">
+   <Row>
+    <Cell><Data ss:Type="String">Top row, followed by 2 empty rows.</Data></Cell>
+   </Row>
+   <Row ss:Index="4">
+    <Cell ss:Index="2"><Data ss:Type="Number">1</Data></Cell>
+   </Row>
+   <Row>
+    <Cell ss:Index="2"><Data ss:Type="Number">2</Data></Cell>
+   </Row>
+   <Row>
+    <Cell ss:Index="2"><Data ss:Type="Number">3</Data></Cell>
+   </Row>
+   <Row>
+    <Cell ss:Index="2"><Data ss:Type="Number">4</Data></Cell>
+   </Row>
+   <Row>
+    <Cell ss:Index="2"><Data ss:Type="Number">5</Data></Cell>
+   </Row>
+   <Row>
+    <Cell ss:Index="2" ss:Formula="=SUM(R[-5]C:R[-1]C)"><Data ss:Type="Number">15</Data></Cell>
+   </Row>
+  </Table>
+  <WorksheetOptions xmlns="urn:schemas-microsoft-com:office:excel">
+   <PageSetup>
+    <Header x:Margin="0.3"/>
+    <Footer x:Margin="0.3"/>
+    <PageMargins x:Bottom="0.75" x:Left="0.7" x:Right="0.7" x:Top="0.75"/>
+   </PageSetup>
+   <Selected/>
+   <Panes>
+    <Pane>
+     <Number>3</Number>
+     <ActiveRow>9</ActiveRow>
+     <ActiveCol>1</ActiveCol>
+    </Pane>
+   </Panes>
+   <ProtectObjects>False</ProtectObjects>
+   <ProtectScenarios>False</ProtectScenarios>
+  </WorksheetOptions>
+ </Worksheet>
+</Workbook>

sc/qa/unit/subsequent_filters-test.cxx

@@ -238,6 +238,7 @@ public:
     void testMergedCellsXLSXML();
     void testBackgroundColorStandardXLSXML();
     void testNamedExpressionsXLSXML();
+    void testEmptyRowsXLSXML();
 
     CPPUNIT_TEST_SUITE(ScFiltersTest);
     CPPUNIT_TEST(testBooleanFormatXLSX);
@@ -363,6 +364,7 @@ public:
     CPPUNIT_TEST(testMergedCellsXLSXML);
     CPPUNIT_TEST(testBackgroundColorStandardXLSXML);
     CPPUNIT_TEST(testNamedExpressionsXLSXML);
+    CPPUNIT_TEST(testEmptyRowsXLSXML);
 
     CPPUNIT_TEST_SUITE_END();
 
@@ -3643,6 +3645,39 @@ void ScFiltersTest::testNamedExpressionsXLSXML()
     }
 }
 
+void ScFiltersTest::testEmptyRowsXLSXML()
+{
+    ScDocShellRef xDocSh = loadDoc("empty-rows.", FORMAT_XLS_XML);
+    CPPUNIT_ASSERT_MESSAGE("Failed to load empty-rows.xml", xDocSh.is());
+    ScDocument& rDoc = xDocSh->GetDocument();
+
+    {
+        // Expected output table content.  0 = empty cell
+        std::vector<std::vector<const char*>> aOutputCheck = {
+            { "Top row, followed by 2 empty rows.", nullptr },
+            { nullptr, nullptr },
+            { nullptr, nullptr },
+            { nullptr,     "1" },
+            { nullptr,     "2" },
+            { nullptr,     "3" },
+            { nullptr,     "4" },
+            { nullptr,     "5" },
+            { nullptr,    "15" },
+        };
+
+        ScRange aDataRange;
+        aDataRange.Parse("A1:B9");
+        bool bSuccess = checkOutput(&rDoc, aDataRange, aOutputCheck, "Expected output");
+        CPPUNIT_ASSERT_MESSAGE("Table output check failed", bSuccess);
+    }
+
+    ScAddress aPos;
+    aPos.Parse("B9");
+    ASSERT_FORMULA_EQUAL(rDoc, aPos, "SUM(B4:B8)", nullptr);
+
+    xDocSh->DoClose();
+}
+
 void ScFiltersTest::testCondFormatXLSB()
 {
     ScDocShellRef xDocSh = loadDoc("cond_format.", FORMAT_XLSB);