only load the testfile once and after that reuse the already loaded file

this is not perfect but better than loading the file several times while
we should only call read-only methods

sc/qa/extras/xcellrangesquery.cxx

@@ -81,7 +81,9 @@ uno::Reference<sheet::XCellRangesQuery> ScXCellRangesQuery::init()
     const rtl::OUString aFileBase(RTL_CONSTASCII_USTRINGPARAM("xcellrangesquery.ods"));
     createFileURL(aFileBase, aFileURL);
     std::cout << rtl::OUStringToOString(aFileURL, RTL_TEXTENCODING_UTF8).getStr() << std::endl;
-    uno::Reference< lang::XComponent > xComponent = loadFromDesktop(aFileURL);
+    static uno::Reference< lang::XComponent > xComponent;
+    if( !xComponent.is())
+        xComponent = loadFromDesktop(aFileURL);
     uno::Reference< sheet::XSpreadsheetDocument> xDoc (xComponent, UNO_QUERY_THROW);
     uno::Reference< container::XIndexAccess > xIndex (xDoc->getSheets(), UNO_QUERY_THROW);
     uno::Reference< sheet::XSpreadsheet > xSheet( xIndex->getByIndex(0), UNO_QUERY_THROW);