port replication initialisation to Python

test/python/conftest.py

@@ -1,3 +1,4 @@
+import itertools
 import sys
 from pathlib import Path
 
@@ -11,6 +12,7 @@ SRC_DIR = Path(__file__) / '..' / '..' / '..'
 sys.path.insert(0, str(SRC_DIR.resolve()))
 
 from nominatim.config import Configuration
+from nominatim.db import connection
 
 class _TestingCursor(psycopg2.extras.DictCursor):
     """ Extension to the DictCursor class that provides execution
@@ -40,27 +42,42 @@ def temp_db(monkeypatch):
         exported into NOMINATIM_DATABASE_DSN.
     """
     name = 'test_nominatim_python_unittest'
-    with psycopg2.connect(database='postgres') as conn:
-        conn.set_isolation_level(0)
-        with conn.cursor() as cur:
-            cur.execute('DROP DATABASE IF EXISTS {}'.format(name))
-            cur.execute('CREATE DATABASE {}'.format(name))
+    conn = psycopg2.connect(database='postgres')
+
+    conn.set_isolation_level(0)
+    with conn.cursor() as cur:
+        cur.execute('DROP DATABASE IF EXISTS {}'.format(name))
+        cur.execute('CREATE DATABASE {}'.format(name))
+
+    conn.close()
 
     monkeypatch.setenv('NOMINATIM_DATABASE_DSN' , 'dbname=' + name)
 
     yield name
 
-    with psycopg2.connect(database='postgres') as conn:
-        conn.set_isolation_level(0)
-        with conn.cursor() as cur:
-            cur.execute('DROP DATABASE IF EXISTS {}'.format(name))
+    conn = psycopg2.connect(database='postgres')
 
+    conn.set_isolation_level(0)
+    with conn.cursor() as cur:
+        cur.execute('DROP DATABASE IF EXISTS {}'.format(name))
+
+    conn.close()
+
+@pytest.fixture
+def temp_db_with_extensions(temp_db):
+    conn = psycopg2.connect(database=temp_db)
+    with conn.cursor() as cur:
+        cur.execute('CREATE EXTENSION hstore; CREATE EXTENSION postgis;')
+    conn.commit()
+    conn.close()
+
+    return temp_db
 
 @pytest.fixture
 def temp_db_conn(temp_db):
     """ Connection to the test database.
     """
-    conn = psycopg2.connect(database=temp_db)
+    conn = connection.connect('dbname=' + temp_db)
     yield conn
     conn.close()
 
@@ -80,3 +97,50 @@ def temp_db_cursor(temp_db):
 @pytest.fixture
 def def_config():
     return Configuration(None, SRC_DIR.resolve() / 'settings')
+
+
+@pytest.fixture
+def status_table(temp_db_conn):
+    """ Create an empty version of the status table.
+    """
+    with temp_db_conn.cursor() as cur:
+        cur.execute("""CREATE TABLE import_status (
+                           lastimportdate timestamp with time zone NOT NULL,
+                           sequence_id integer,
+                           indexed boolean
+                       )""")
+    temp_db_conn.commit()
+
+
+@pytest.fixture
+def place_table(temp_db_with_extensions, temp_db_conn):
+    """ Create an empty version of the place table.
+    """
+    with temp_db_conn.cursor() as cur:
+        cur.execute("""CREATE TABLE place (
+                           osm_id int8 NOT NULL,
+                           osm_type char(1) NOT NULL,
+                           class text NOT NULL,
+                           type text NOT NULL,
+                           name hstore,
+                           admin_level smallint,
+                           address hstore,
+                           extratags hstore,
+                           geometry Geometry(Geometry,4326) NOT NULL)""")
+    temp_db_conn.commit()
+
+
+@pytest.fixture
+def place_row(place_table, temp_db_cursor):
+    """ A factory for rows in the place table. The table is created as a
+        prerequisite to the fixture.
+    """
+    idseq = itertools.count(1001)
+    def _insert(osm_type='N', osm_id=None, cls='amenity', typ='cafe', names=None,
+                admin_level=None, address=None, extratags=None, geom=None):
+        temp_db_cursor.execute("INSERT INTO place VALUES (%s, %s, %s, %s, %s, %s, %s, %s, %s)",
+                               (osm_id or next(idseq), osm_type, cls, typ, names,
+                                admin_level, address, extratags,
+                                geom or 'SRID=4326;POINT(0 0 )'))
+
+    return _insert