Merge pull request #2192 from lonvia/database-versioning

[nominatim.git] / test / python / test_db_connection.py

diff --git a/test/python/test_db_connection.py b/test/python/test_db_connection.py
index 846ef864db853f102d3c02667ba28272eb5e2dc7..5de686182fc2d3d90c67c68a165ed634f6e40920 100644 (file)
--- a/test/python/test_db_connection.py
+++ b/test/python/test_db_connection.py
@@ -2,8 +2,9 @@
 Tests for specialised conenction and cursor classes.
 """
 import pytest
 Tests for specialised conenction and cursor classes.
 """
 import pytest

+import psycopg2

 
 

-from nominatim.db.connection import connect
+from nominatim.db.connection import connect, get_pg_env

 
 @pytest.fixture
 def db(temp_db):
 
 @pytest.fixture
 def db(temp_db):


@@ -11,10 +12,10 @@ def db(temp_db):
         yield conn
 
 
         yield conn
 
 

-def test_connection_table_exists(db, temp_db_cursor):
+def test_connection_table_exists(db, table_factory):

     assert db.table_exists('foobar') == False
 
     assert db.table_exists('foobar') == False
 

-    temp_db_cursor.execute('CREATE TABLE foobar (id INT)')
+    table_factory('foobar')

 
     assert db.table_exists('foobar') == True
 
 
     assert db.table_exists('foobar') == True
 


@@ -30,6 +31,22 @@ def test_connection_index_exists(db, temp_db_cursor):
     assert db.index_exists('some_index', table='bar') == False
 
 
     assert db.index_exists('some_index', table='bar') == False
 
 

+def test_drop_table_existing(db, table_factory):
+    table_factory('dummy')
+    assert db.table_exists('dummy')
+
+    db.drop_table('dummy')
+    assert not db.table_exists('dummy')
+
+
+def test_drop_table_non_existsing(db):
+    db.drop_table('dfkjgjriogjigjgjrdghehtre')
+
+
+def test_drop_table_non_existing_force(db):
+    with pytest.raises(psycopg2.ProgrammingError, match='.*does not exist.*'):
+        db.drop_table('dfkjgjriogjigjgjrdghehtre', if_exists=False)
+

 def test_connection_server_version_tuple(db):
     ver = db.server_version_tuple()
 
 def test_connection_server_version_tuple(db):
     ver = db.server_version_tuple()
 


@@ -37,8 +54,19 @@ def test_connection_server_version_tuple(db):
     assert len(ver) == 2
     assert ver[0] > 8
 
     assert len(ver) == 2
     assert ver[0] > 8
 

-def test_cursor_scalar(db, temp_db_cursor):
-    temp_db_cursor.execute('CREATE TABLE dummy (id INT)')
+
+def test_connection_postgis_version_tuple(db, temp_db_cursor):
+    temp_db_cursor.execute('CREATE EXTENSION postgis')
+
+    ver = db.postgis_version_tuple()
+
+    assert isinstance(ver, tuple)
+    assert len(ver) == 2
+    assert ver[0] >= 2
+
+
+def test_cursor_scalar(db, table_factory):
+    table_factory('dummy')

 
     with db.cursor() as cur:
         assert cur.scalar('SELECT count(*) FROM dummy') == 0
 
     with db.cursor() as cur:
         assert cur.scalar('SELECT count(*) FROM dummy') == 0


@@ -48,3 +76,32 @@ def test_cursor_scalar_many_rows(db):
     with db.cursor() as cur:
         with pytest.raises(RuntimeError):
             cur.scalar('SELECT * FROM pg_tables')
     with db.cursor() as cur:
         with pytest.raises(RuntimeError):
             cur.scalar('SELECT * FROM pg_tables')

+
+
+def test_cursor_scalar_no_rows(db, table_factory):
+    table_factory('dummy')
+
+    with db.cursor() as cur:
+        with pytest.raises(RuntimeError):
+            cur.scalar('SELECT id FROM dummy')
+
+
+def test_get_pg_env_add_variable(monkeypatch):
+    monkeypatch.delenv('PGPASSWORD', raising=False)
+    env = get_pg_env('user=fooF')
+
+    assert env['PGUSER'] == 'fooF'
+    assert 'PGPASSWORD' not in env
+
+
+def test_get_pg_env_overwrite_variable(monkeypatch):
+    monkeypatch.setenv('PGUSER', 'some default')
+    env = get_pg_env('user=overwriter')
+
+    assert env['PGUSER'] == 'overwriter'
+
+
+def test_get_pg_env_ignore_unknown():
+    env = get_pg_env('tty=stuff', base_env={})
+
+    assert env == {}