Add test for OOXML part of tdf#99256

Change-Id: If5e56109f0bf9281be74c17965b047a50f8b55d3

sc/qa/unit/subsequent_filters-test.cxx

@@ -204,6 +204,7 @@ public:
     void testEmbeddedImageXLS();
     void testEditEngStrikeThroughXLSX();
     void testRefStringXLSX();
+    void testRefStringConfigXLSX();
 
     CPPUNIT_TEST_SUITE(ScFiltersTest);
     CPPUNIT_TEST(testBooleanFormatXLSX);
@@ -299,6 +300,7 @@ public:
     CPPUNIT_TEST(testErrorOnExternalReferences);
     CPPUNIT_TEST(testEditEngStrikeThroughXLSX);
     CPPUNIT_TEST(testRefStringXLSX);
+    CPPUNIT_TEST(testRefStringConfigXLSX);
     CPPUNIT_TEST_SUITE_END();
 
 private:
@@ -3108,6 +3110,22 @@ void ScFiltersTest::testRefStringXLSX()
     xDocSh->DoClose();
 }
 
+void ScFiltersTest::testRefStringConfigXLSX()
+{
+    ScDocShellRef xDocSh = loadDoc("empty.", XLSX);
+    CPPUNIT_ASSERT_MESSAGE("Failed to open doc", xDocSh.Is());
+
+    xDocSh = saveAndReload( &(*xDocSh), XLSX);
+    CPPUNIT_ASSERT_MESSAGE("Failed to reload doc", xDocSh.Is());
+
+    ScDocument& rDoc = xDocSh->GetDocument();
+    ScCalcConfig aConfig = rDoc.GetCalcConfig();
+    CPPUNIT_ASSERT_EQUAL_MESSAGE("String ref syntax doesn't match", formula::FormulaGrammar::CONV_OOO,
+                            aConfig.meStringRefAddressSyntax);
+
+    xDocSh->DoClose();
+}
+
 ScFiltersTest::ScFiltersTest()
       : ScBootstrapFixture( "sc/qa/unit/data" )
 {