emfplus: corrections for UnitTest in vcl

The CppunitTest_vcl_filters_test was not working due
to a wmf file now being loadable. This leaded to better
check errors on stream and react on it in test code.
Hrad to find since that test - for whatever reason - is
not executed on win. Also need to check result of
EmfReader. Added emfio to test's module list

Change-Id: Iea2b835408e919a8456e8f178cbfc782885ffebb

1 files changed, 24 insertions, 1 deletions

diff --git a/vcl/qa/cppunit/graphicfilter/filters-test.cxx b/vcl/qa/cppunit/graphicfilter/filters-test.cxx
index 0b28c706fd84..d6a32f2875d5 100644
--- a/vcl/qa/cppunit/graphicfilter/filters-test.cxx
+++ b/vcl/qa/cppunit/graphicfilter/filters-test.cxx
@@ -57,7 +57,30 @@ bool VclFiltersTest::load(const OUString &,
 {
     SvFileStream aFileStream(rURL, StreamMode::READ);
     Graphic aGraphic;
-    return mGraphicFilter.ImportGraphic(aGraphic, rURL, aFileStream) == ERRCODE_NONE;
+    bool bRetval(ERRCODE_NONE == mGraphicFilter.ImportGraphic(aGraphic, rURL, aFileStream));
+
+    if (!bRetval)
+    {
+        // if error occurred, we are done
+        return bRetval;
+    }
+
+    // if not and we have an embedded Vector Graphic Data, trigger it's interpretation
+    // to check for error. Graphic with VectorGraphicData (Svg/Emf/Wmf) load without error
+    // as long as one of the three types gets detected. Thus, cycles like load/save in
+    // other format will work (what may be wanted). For the test framework it was indirectly
+    // intended to trigger an error when load in the sense of deep data interpretation fails,
+    // so we need to trigger this here
+    if (aGraphic.getVectorGraphicData().get())
+    {
+        if (aGraphic.getVectorGraphicData()->getRange().isEmpty())
+        {
+            // invalid file or file with no content
+            return false;
+        }
+    }
+
+    return true;
 }
 
 void VclFiltersTest::testScaling()