Improve tests

- Always default to 'python' if PYTHON env. var. unset.
- Enable SQLAlchemy warnings in daemon tests.
- Commit changes in schema initialisation script.

test/daemon_test.py

@@ -23,15 +23,19 @@ import subprocess
 import os
 import time
 import unittest
+from typing import Dict
 
 
-def _spawn(cmd):
+def _spawn(cmd, *, env_add: Dict = None):
     env_dict = {
         "PATH": os.getenv("PATH"),
         "PYTHONPATH": os.getcwd(),
         "LANG": 'en_US.UTF-8',
         "LACRE_CONFIG": "test/lacre-daemon.conf"
         }
+    if env_add:
+        env_dict.update(env_add)
+
     logging.debug(f"Spawning command: {cmd} with environment: {env_dict!r}")
     return subprocess.Popen(cmd,
                             stdin=None,
@@ -45,7 +49,8 @@ def _interrupt(proc):
 
 def _send(host, port, mail_from, mail_to, message):
     logging.debug(f"Sending message to {host}:{port}")
-    p = _spawn([os.getenv("PYTHON") or "python",
+    python = os.getenv("PYTHON") or "python"
+    p = _spawn([python,
         "test/utils/sendmail.py",
         "-f", mail_from,
         "-t", mail_to,
@@ -83,7 +88,7 @@ class AdvancedMailFilterE2ETest(unittest.TestCase):
         python = os.getenv("PYTHON", "python")
 
         logging.info('Starting the server...')
-        cls.server = _spawn([python, '-m', 'lacre.daemon'])
+        cls.server = _spawn([python, '-m', 'lacre.daemon'], env_add={'SQLALCHEMY_WARN_20': '1'})
 
     @classmethod
     def tearDownClass(cls):

test/e2e_test.py

@@ -101,7 +101,7 @@ class SimpleMailFilterE2ETest(unittest.TestCase):
         cls._e2e_config_path = os.path.join(os.getcwd(), CONFIG_FILE)
 
         # This environment variable is set in Makefile.
-        cls._python_path = os.getenv('PYTHON', 'python3')
+        cls._python_path = os.getenv('PYTHON', 'python')
 
         _write_test_config(cls._e2e_config_path,
                            port				= cls._e2e_config.get("relay", "port"),

test/utils/schema.py

@@ -1,6 +1,5 @@
 import sys
 import sqlalchemy
-from sqlalchemy.sql import insert
 
 def define_db_schema():
     meta = sqlalchemy.MetaData()
@@ -25,17 +24,16 @@ if len(sys.argv) != 2:
 
 (meta, lacre_keys, identities) = define_db_schema()
 
-dbname = sys.argv[1]
-test_db = sqlalchemy.create_engine(f"sqlite:///{dbname}")
+test_db = sqlalchemy.create_engine(sqlalchemy.URL.create('sqlite', database=sys.argv[1]))
 
 # Initialise the schema
 meta.create_all(test_db)
 
-conn = test_db.connect()
+with test_db.connect() as conn:
 
-# Populate the database with dummy data
-conn.execute(lacre_keys.insert(), [
-    {"id": 1, "email": "alice@disposlab", "publickey": "-----BEGIN PGP PUBLIC KEY BLOCK-----\n\
+    # Populate the database with dummy data
+    conn.execute(lacre_keys.insert(), [
+        {"id": 1, "email": "alice@disposlab", "publickey": "-----BEGIN PGP PUBLIC KEY BLOCK-----\n\
 \n\
 mQGNBGDYY5oBDAC+HAVjA05jsIpHfQ2KQ9m2olo1Qnlk+dkjD+Gagxj1ACezyiGL\n\
 cfZfoE/MJYLCH9yPcX1fUIAPwdAyfJKlvkVcz+MhEpgl3aP3NM2L2unSx3v9ZFwT\n\
@@ -77,7 +75,7 @@ pw==\n\
 =Tbwz\n\
 -----END PGP PUBLIC KEY BLOCK-----\
 ", "status": 0, "confirm": "", "time": None},
-    {"id": 2, "email": "bob@disposlab",   "publickey": "-----BEGIN PGP PUBLIC KEY BLOCK-----\n\
+        {"id": 2, "email": "bob@disposlab",   "publickey": "-----BEGIN PGP PUBLIC KEY BLOCK-----\n\
 \n\
 mDMEYdTFkRYJKwYBBAHaRw8BAQdA2tgdP1pMt3cv3XAW7ov5AFn74mMZvyTksp9Q\n\
 eO1PkpK0GkJvYiBGb29iYXIgPGJvYkBkaXNwb3NsYWI+iJYEExYIAD4WIQQZz0tH\n\
@@ -91,11 +89,13 @@ OjjB6xRD0Q2FN+alsNGCtdutAs18AZ5l33RMzws=\n\
 =wWoq\n\
 -----END PGP PUBLIC KEY BLOCK-----\
 ", "status": 1, "confirm": "", "time": None},
-    {"id": 3, "email": "cecil@lacre.io", "publickey": "RUBBISH", "status": 2, "confirm": "", "time": None}
+        {"id": 3, "email": "cecil@lacre.io", "publickey": "RUBBISH", "status": 2, "confirm": "", "time": None}
     ])
 
-conn.execute(identities.insert(), [
-    {'fingerprint': '1CD245308F0963D038E88357973CF4D9387C44D7', 'email': 'alice@disposlab'},
-    {'fingerprint': '19CF4B47ECC9C47AFA84D4BD96F39FDA0E31BB67', 'email': 'bob@disposlab'},
-    {'fingerprint': '530B1BB2D0CC7971648198BBA4774E507D3AF5BC', 'email': 'evan@disposlab'}
-   ])
+    conn.execute(identities.insert(), [
+        {'fingerprint': '1CD245308F0963D038E88357973CF4D9387C44D7', 'email': 'alice@disposlab'},
+        {'fingerprint': '19CF4B47ECC9C47AFA84D4BD96F39FDA0E31BB67', 'email': 'bob@disposlab'},
+        {'fingerprint': '530B1BB2D0CC7971648198BBA4774E507D3AF5BC', 'email': 'evan@disposlab'}
+    ])
+
+    conn.commit()