Added tests with use estimated metadata

Author: elpaso

tests/src/python/test_provider_postgres.py

@@ -53,7 +53,7 @@ def enableCompiler(self):
     def disableCompiler(self):
         QSettings().setValue(u'/qgis/compileExpressions', False)
 
-# HERE GO THE PROVIDER SPECIFIC TESTS
+    # HERE GO THE PROVIDER SPECIFIC TESTS
     def testDefaultValue(self):
         assert self.provider.defaultValue(0) == u'nextval(\'qgis_test."someData_pk_seq"\'::regclass)'
         assert self.provider.defaultValue(1) == NULL
@@ -94,18 +94,36 @@ def test_table(dbconn, table_name, wkt):
         test_table(self.dbconn, 'mls3d', 'MultiLineStringZ ((0 0 0, 1 1 1),(2 2 2, 3 3 3))')
 
     def testGetFeaturesUniqueId(self):
-        def test_unique(dbconn, table_name, num_features):
-            vl = QgsVectorLayer('%s srid=4326 table="qgis_test".%s (geom) sql=' % (dbconn, table_name), "testgeom", "postgres")
-            assert(vl.isValid())
-            features = [f for f in vl.getFeatures()]
+        """
+        Test tables with inheritance for unique ids
+        """
+        def test_unique(features, num_features):
             featureids = []
             for f in features:
                 self.assertFalse(f.id() in featureids)
                 featureids.append(f.id())
             self.assertEqual(len(features), num_features)
 
-        test_unique(self.dbconn, 'someData', 5)
-        test_unique(self.dbconn, 'base_table', 4)
+        vl = QgsVectorLayer('%s srid=4326 table="qgis_test".%s (geom) sql=' % (self.dbconn, 'someData'), "testgeom", "postgres")
+        self.assertTrue(vl.isValid())
+        # Test someData
+        test_unique([f for f in vl.getFeatures()], 5)
+
+        # Test base_table_bad: layer is invalid
+        vl = QgsVectorLayer('%s srid=4326 table="qgis_test".%s (geom) sql=' % (self.dbconn, 'base_table_bad'), "testgeom", "postgres")
+        self.assertFalse(vl.isValid())
+        # Test base_table_bad with use estimated metadata: layer is valid because the unique test is skipped
+        vl = QgsVectorLayer('%s srid=4326 estimatedmetadata="true" table="qgis_test".%s (geom) sql=' % (self.dbconn, 'base_table_bad'), "testgeom", "postgres")
+        self.assertTrue(vl.isValid())
+
+        # Test base_table_good: layer is valid
+        vl = QgsVectorLayer('%s srid=4326 table="qgis_test".%s (geom) sql=' % (self.dbconn, 'base_table_good'), "testgeom", "postgres")
+        self.assertTrue(vl.isValid())
+        test_unique([f for f in vl.getFeatures()], 4)
+        # Test base_table_bad with use estimated metadata: layer is valid
+        vl = QgsVectorLayer('%s srid=4326 estimatedmetadata="true" table="qgis_test".%s (geom) sql=' % (self.dbconn, 'base_table_good'), "testgeom", "postgres")
+        self.assertTrue(vl.isValid())
+        test_unique([f for f in vl.getFeatures()], 4)
 
 
 if __name__ == '__main__':

tests/testdata/provider/testdata.sql

@@ -190,45 +190,102 @@ CREATE TABLE qgis_test.mls3d(
 INSERT INTO qgis_test.mls3d values (1, 'srid=4326;MultiLineString((0 0 0, 1 1 1),(2 2 2, 3 3 3))'::geometry);
 
 
-CREATE TABLE qgis_test.base_table
+-----------------------------------------
+-- Test tables with INHERITS
+--
+-- This is bad design: the common fields
+-- are replicated in child tables and
+-- leads to duplicated ids in the parent
+-- table
+--
+
+
+CREATE TABLE qgis_test.base_table_bad
 (
   gid serial NOT NULL,
   geom geometry(Point,4326),
   code character varying,
-  CONSTRAINT base_pkey PRIMARY KEY (gid)
+  CONSTRAINT base_bad_pkey PRIMARY KEY (gid)
 )
 WITH (
   OIDS=FALSE
 );
 
-CREATE TABLE qgis_test.child_table
+CREATE TABLE qgis_test.child_table_bad
 (
   gid serial NOT NULL,
   geom geometry(Point,4326),
   code character varying,
-  CONSTRAINT child_pkey PRIMARY KEY (gid)
+  CONSTRAINT child_bad_pkey PRIMARY KEY (gid)
 )
-INHERITS ( qgis_test.base_table)
+INHERITS ( qgis_test.base_table_bad)
 WITH (
   OIDS=FALSE
 );
 
 
-CREATE TABLE qgis_test.child_table2
+CREATE TABLE qgis_test.child_table2_bad
 (
   gid serial NOT NULL,
   geom geometry(Point,4326),
   code character varying,
-  CONSTRAINT child2_pkey PRIMARY KEY (gid)
+  CONSTRAINT child2_bad_pkey PRIMARY KEY (gid)
+)
+INHERITS ( qgis_test.base_table_bad)
+WITH (
+  OIDS=FALSE
+);
+
+INSERT INTO qgis_test.child_table_bad (geom, code) VALUES ('srid=4326;Point(0 0)'::geometry, 'child 1');
+INSERT INTO qgis_test.child_table_bad (geom, code) VALUES ('srid=4326;Point(1 1)'::geometry, 'child 2');
+
+
+INSERT INTO qgis_test.child_table2_bad (geom, code) VALUES ('srid=4326;Point(-1 -1)'::geometry, 'child2 1');
+INSERT INTO qgis_test.child_table2_bad (geom, code) VALUES ('srid=4326;Point(-1 1)'::geometry, 'child2 2');
+
+
+
+-----------------------------------------
+-- Test tables with INHERITS
+--
+-- This is good design: the common fields
+-- and the pk are only in the parent table
+-- no pk duplication
+
+
+CREATE TABLE qgis_test.base_table_good
+(
+  gid serial NOT NULL,
+  geom geometry(Point,4326),
+  CONSTRAINT base_good_pkey PRIMARY KEY (gid)
+)
+WITH (
+  OIDS=FALSE
+);
+
+CREATE TABLE qgis_test.child_table_good
+(
+  code1 character varying
 )
-INHERITS ( qgis_test.base_table)
+INHERITS ( qgis_test.base_table_good)
 WITH (
   OIDS=FALSE
 );
 
-INSERT INTO qgis_test.child_table (gid, geom, code) VALUES (1, 'srid=4326;Point(0 0)'::geometry, 'child 1');
-INSERT INTO qgis_test.child_table (gid, geom, code) VALUES (2, 'srid=4326;Point(1 1)'::geometry, 'child 2');
 
+CREATE TABLE qgis_test.child_table2_good
+(
+  code2 character varying
+)
+INHERITS ( qgis_test.base_table_good)
+WITH (
+  OIDS=FALSE
+);
+
+INSERT INTO qgis_test.child_table_good (geom, code1) VALUES ('srid=4326;Point(0 0)'::geometry, 'child 1');
+INSERT INTO qgis_test.child_table_good (geom, code1) VALUES ('srid=4326;Point(1 1)'::geometry, 'child 2');
+
+
+INSERT INTO qgis_test.child_table2_good (geom, code2) VALUES ('srid=4326;Point(-1 -1)'::geometry, 'child2 1');
+INSERT INTO qgis_test.child_table2_good (geom, code2) VALUES ('srid=4326;Point(-1 1)'::geometry, 'child2 2');
 
-INSERT INTO qgis_test.child_table2 (gid, geom, code) VALUES (1, 'srid=4326;Point(-1 -1)::geometry', 'child2 1');
-INSERT INTO qgis_test.child_table2 (gid, geom, code) VALUES (2, 'srid=4326;Point(-1 1)::geometry', 'child2 2');