sc: fix CppunitTest_sc_ddelinkobj to copy its test document

XRefreshable::testRefreshListener() fails on read-only filesystem
because the ScDDELinksObj.ods cannot be loaded read-write.

It is loaded read-write since commit
5b2794e27a.

Change-Id: I27b954b216acd3d138ade0d3f1b21fedd2f74fb1
Reviewed-on: https://gerrit.libreoffice.org/67071
Tested-by: Jenkins
Reviewed-by: Michael Stahl <Michael.Stahl@cib.de>

include/test/sheet/xddelink.hxx

@@ -27,7 +27,13 @@ public:
     void testGetTopic();
 
 protected:
+    explicit XDDELink(OUString const& rURL)
+        : m_URL(rURL)
+    {
+    }
     ~XDDELink() {}
+
+    OUString const m_URL;
 };
 } // namespace apitest
 

sc/CppunitTest_sc_ddelinkobj.mk

@@ -23,6 +23,7 @@ $(eval $(call gb_CppunitTest_use_libraries,sc_ddelinkobj, \
 	subsequenttest \
 	test \
 	unotest \
+	utl \
 	vcl \
 ))
 

sc/qa/extras/scddelinkobj.cxx

@@ -12,6 +12,7 @@
 #include <test/sheet/xddelink.hxx>
 #include <test/util/xrefreshable.hxx>
 
+#include <unotools/tempfile.hxx>
 #include <sfx2/app.hxx>
 
 #include <com/sun/star/beans/XPropertySet.hpp>
@@ -33,7 +34,29 @@ using namespace com::sun::star;
 
 namespace sc_apitest
 {
+static utl::TempFile createTempCopy(OUString const& url)
+{
+    utl::TempFile tmp;
+    tmp.EnableKillingFile();
+    auto const e = osl::File::copy(url, tmp.GetURL());
+    CPPUNIT_ASSERT_EQUAL_MESSAGE(
+        (OUStringToOString("<" + url + "> -> <" + tmp.GetURL() + ">", RTL_TEXTENCODING_UTF8)
+             .getStr()),
+        osl::FileBase::E_None, e);
+    return tmp;
+}
+
+struct TempFileBase
+{
+    utl::TempFile m_TempFile;
+    explicit TempFileBase(OUString const& url)
+        : m_TempFile(createTempCopy(url))
+    {
+    }
+};
+
 class ScDDELinkObj : public CalcUnoApiTest,
+                     public TempFileBase,
                      public apitest::XDDELink,
                      public apitest::XNamed,
                      public apitest::XRefreshable
@@ -67,9 +90,9 @@ private:
 
 ScDDELinkObj::ScDDELinkObj()
     : CalcUnoApiTest("/sc/qa/extras/testdocuments")
-    , XNamed("soffice|"
-             + m_directories.getURLFromSrc("/sc/qa/unoapi/testdocuments/ScDDELinksObj.ods")
-             + "!Sheet1.A1")
+    , TempFileBase(m_directories.getURLFromSrc("/sc/qa/unoapi/testdocuments/ScDDELinksObj.ods"))
+    , XDDELink(m_TempFile.GetURL())
+    , XNamed("soffice|" + m_TempFile.GetURL() + "!Sheet1.A1")
 {
 }
 
@@ -81,8 +104,7 @@ uno::Reference<uno::XInterface> ScDDELinkObj::init()
     uno::Reference<container::XIndexAccess> xIA(xSheets, UNO_QUERY_THROW);
     uno::Reference<sheet::XSpreadsheet> xSheet(xIA->getByIndex(0), UNO_QUERY_THROW);
 
-    const OUString testdoc
-        = m_directories.getURLFromSrc("/sc/qa/unoapi/testdocuments/ScDDELinksObj.ods");
+    const OUString testdoc = m_TempFile.GetURL();
 
     xSheet->getCellByPosition(5, 5)->setFormula("=DDE(\"soffice\";\"" + testdoc
                                                 + "\";\"Sheet1.A1\")");

test/source/sheet/xddelink.cxx

@@ -37,8 +37,7 @@ void XDDELink::testGetTopic()
 {
     uno::Reference<sheet::XDDELink> xLink(init(), UNO_QUERY_THROW);
 
-    CPPUNIT_ASSERT_MESSAGE("Unable to execute getTopic()",
-                           xLink->getTopic().endsWith("ScDDELinksObj.ods"));
+    CPPUNIT_ASSERT_EQUAL_MESSAGE("Unable to execute getTopic()", m_URL, xLink->getTopic());
 }
 } // namespace apitest