add function to set up libpq environment

[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 ef1ae7416cc9d23a3d3c11433d5ea444c3c9262b..fd5da754284be7408c3f1711d1589601adc9b5b8 100644 (file)
--- a/test/python/test_db_connection.py
+++ b/test/python/test_db_connection.py
@@ -3,13 +3,12 @@ Tests for specialised conenction and cursor classes.
 """
 import pytest
 
-from nominatim.db.connection import connect
+from nominatim.db.connection import connect, get_pg_env
 
 @pytest.fixture
 def db(temp_db):
-    conn = connect('dbname=' + temp_db)
-    yield conn
-    conn.close()
+    with connect('dbname=' + temp_db) as conn:
+        yield conn
 
 
 def test_connection_table_exists(db, temp_db_cursor):
@@ -20,13 +19,53 @@ def test_connection_table_exists(db, temp_db_cursor):
     assert db.table_exists('foobar') == True
 
 
+def test_connection_index_exists(db, temp_db_cursor):
+    assert db.index_exists('some_index') == False
+
+    temp_db_cursor.execute('CREATE TABLE foobar (id INT)')
+    temp_db_cursor.execute('CREATE INDEX some_index ON foobar(id)')
+
+    assert db.index_exists('some_index') == True
+    assert db.index_exists('some_index', table='foobar') == True
+    assert db.index_exists('some_index', table='bar') == False
+
+
+def test_connection_server_version_tuple(db):
+    ver = db.server_version_tuple()
+
+    assert isinstance(ver, tuple)
+    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)')
 
     with db.cursor() as cur:
         assert cur.scalar('SELECT count(*) FROM dummy') == 0
 
+
 def test_cursor_scalar_many_rows(db):
     with db.cursor() as cur:
         with pytest.raises(RuntimeError):
             cur.scalar('SELECT * FROM pg_tables')
+
+
+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 == {}