lookForGridInfo(): make it work properly when passed the old PROJ name

Fixes https://github.com/qgis/QGIS/issues/45470

That is, if the file for the old PROJ name is not found, but the file
for the new PROJ name is found, then use the later for fullFilename and
gridAvailable.

1 files changed, 41 insertions, 0 deletions

diff --git a/test/unit/test_factory.cpp b/test/unit/test_factory.cpp
index 9abade09..63931a5d 100644
--- a/test/unit/test_factory.cpp
+++ b/test/unit/test_factory.cpp
@@ -2763,6 +2763,47 @@ TEST_F(FactoryWithTmpDatabase, lookForGridInfo) {
 
 // ---------------------------------------------------------------------------
 
+TEST_F(FactoryWithTmpDatabase,
+       lookForGridInfo_from_old_name_with_new_grid_available) {
+    createStructure();
+
+    ASSERT_TRUE(execute("INSERT INTO grid_alternatives(original_grid_name,"
+                        "proj_grid_name, "
+                        "old_proj_grid_name, "
+                        "proj_grid_format, "
+                        "proj_method, "
+                        "inverse_direction, "
+                        "package_name, "
+                        "url, direct_download, open_license, directory) "
+                        "VALUES ("
+                        "'NOT-YET-IN-GRID-TRANSFORMATION-original_grid_name', "
+                        "'tests/egm96_15_uncompressed_truncated.tif', "
+                        "'old_name.gtx', "
+                        "'NTv2', "
+                        "'hgridshift', "
+                        "0, "
+                        "NULL, "
+                        "'url', 1, 1, NULL);"))
+        << last_error();
+
+    std::string fullFilename;
+    std::string packageName;
+    std::string url;
+    bool directDownload = false;
+    bool openLicense = false;
+    bool gridAvailable = false;
+    EXPECT_TRUE(DatabaseContext::create(m_ctxt)->lookForGridInfo(
+        "old_name.gtx", false, fullFilename, packageName, url, directDownload,
+        openLicense, gridAvailable));
+    EXPECT_TRUE(
+        fullFilename.find("tests/egm96_15_uncompressed_truncated.tif") !=
+        std::string::npos)
+        << fullFilename;
+    EXPECT_EQ(gridAvailable, true);
+}
+
+// ---------------------------------------------------------------------------
+
 TEST_F(FactoryWithTmpDatabase, custom_geodetic_crs) {
     createStructure();
     populateWithFakeEPSG();