GdalUtils test added

tests/src/python/CMakeLists.txt

@@ -388,6 +388,7 @@ ADD_PYTHON_TEST(PyQgsSelectiveMasking test_selective_masking.py)
 ADD_PYTHON_TEST(PyQgsAttributeEditorAction test_qgsattributeeditoraction.py)
 ADD_PYTHON_TEST(PyQgsVectorTile test_qgsvectortile.py)
 ADD_PYTHON_TEST(PyQgsVtpk test_qgsvtpk.py)
+ADD_PYTHON_TEST(PyQgsProcessingAlgsGdalGdalUtils test_processing_algs_gdal_gdalutils.py)
 
 if (NOT WIN32)
   ADD_PYTHON_TEST(PyQgsLogger test_qgslogger.py)

tests/src/python/test_processing_algs_gdal_gdalutils.py

@@ -0,0 +1,82 @@
+"""QGIS Unit tests for GdalUtils class
+
+.. note:: This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+"""
+__author__ = 'Stefanos Natsis'
+__date__ = '03/07/2024'
+__copyright__ = 'Copyright 2024, The QGIS Project'
+
+
+import unittest
+from qgis.testing import start_app, QgisTestCase
+from qgis.core import QgsApplication, QgsRasterLayer, QgsDataSourceUri, QgsAuthMethodConfig
+from processing.algs.gdal.GdalUtils import (
+    GdalUtils,
+    GdalConnectionDetails
+)
+
+start_app()
+
+
+class TestProcessingAlgsGdalGdalUtils(QgisTestCase):
+
+    def test_gdal_connection_details_from_layer_postgresraster(self):
+        """
+        Test GdalUtils.gdal_connection_details_from_layer
+        """
+
+        rl = QgsRasterLayer(
+            "dbname='mydb' host=localhost port=5432 user='asdf' password='42'"
+            " sslmode=disable table=some_table schema=some_schema column=rast sql=pk = 2",
+            'pg_layer', 'postgresraster')
+
+        self.assertEqual(rl.providerType(), 'postgresraster')
+
+        connection_details = GdalUtils.gdal_connection_details_from_layer(rl)
+        s = connection_details.connection_string
+
+        self.assertTrue(s.lower().startswith('pg:'))
+        self.assertTrue("schema='some_schema'" in s)
+        self.assertTrue("password='42'" in s)
+        self.assertTrue("column='rast'" in s)
+        self.assertTrue("mode=1" in s)
+        self.assertTrue("where='pk = 2'" in s)
+        self.assertEqual(connection_details.format, '"PostGISRaster"')
+
+        # test different uri:
+        # - authcfg is expanded
+        # - column is parsed
+        # - where is skipped
+        authm = QgsApplication.authManager()
+        self.assertTrue(authm.setMasterPassword('masterpassword', True))
+        config = QgsAuthMethodConfig()
+        config.setName('Basic')
+        config.setMethod('Basic')
+        config.setConfig('username', 'asdf')
+        config.setConfig('password', '42')
+        self.assertTrue(authm.storeAuthenticationConfig(config, True))
+
+        rl = QgsRasterLayer(
+            f"dbname='mydb' host=localhost port=5432 authcfg={config.id()}"
+            f" sslmode=disable table=\"some_schema\".\"some_table\" (rast)",
+            'pg_layer', 'postgresraster')
+
+        self.assertEqual(rl.providerType(), 'postgresraster')
+
+        connection_details = GdalUtils.gdal_connection_details_from_layer(rl)
+        s = connection_details.connection_string
+
+        self.assertTrue(s.lower().startswith('pg:'))
+        self.assertTrue("schema='some_schema'" in s)
+        self.assertTrue("user='asdf'" in s)
+        self.assertTrue("password='42'" in s)
+        self.assertTrue("column='rast'" in s)
+        self.assertTrue("mode=1" in s)
+        self.assertFalse("where=" in s)
+
+
+if __name__ == '__main__':
+    unittest.main()