gdalmdimtranslate: add error message when output format cannot be gue…

…ssed Fixes #11847
OSGeo · Feb 19, 2025 · 1b2ec24 · 1b2ec24
1 parent fec933e
commit 1b2ec24
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Showing 2 changed files with 19 additions and 0 deletions.
diff --git a/apps/gdalmdimtranslate_lib.cpp b/apps/gdalmdimtranslate_lib.cpp
@@ -1800,6 +1800,9 @@ GDALMultiDimTranslate(const char *pszDest, GDALDatasetH hDstDS, int nSrcCount,
                 osFormat = GetOutputDriverForRaster(pszDest);
             if (osFormat.empty())
             {
+                CPLError(CE_Failure, CPLE_AppDefined,
+                         "Cannot determine output driver for dataset name '%s'",
+                         pszDest);
                 return nullptr;
             }
         }

diff --git a/autotest/utilities/test_gdalmdimtranslate_lib.py b/autotest/utilities/test_gdalmdimtranslate_lib.py
@@ -58,6 +58,22 @@ def test_gdalmdimtranslate_multidim_to_mem():
 ###############################################################################
 
 
+@pytest.mark.skipif(
+    not gdaltest.vrt_has_open_support(),
+    reason="VRT driver open missing",
+)
+def test_gdalmdimtranslate_multidim_to_unknown_format():
+
+    with pytest.raises(
+        Exception,
+        match="Cannot determine output driver for dataset name 'unknown.unknown'",
+    ):
+        gdal.MultiDimTranslate("unknown.unknown", "data/mdim.vrt")
+
+
+###############################################################################
+
+
 @pytest.mark.skipif(
     not gdaltest.vrt_has_open_support(),
     reason="VRT driver open missing",