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120 lines
4.0 KiB
Python
120 lines
4.0 KiB
Python
import os
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import signal
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import subprocess
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from unittest import mock
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from django.db.backends.postgresql.client import DatabaseClient
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from django.test import SimpleTestCase
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class PostgreSqlDbshellCommandTestCase(SimpleTestCase):
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def _run_it(self, dbinfo):
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"""
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That function invokes the runshell command, while mocking
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subprocess.run(). It returns a 2-tuple with:
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- The command line list
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- The dictionary of PG* environment variables, or {}.
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"""
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def _mock_subprocess_run(*args, env=os.environ, **kwargs):
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self.subprocess_args = list(*args)
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# PostgreSQL environment variables.
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self.pg_env = {key: env[key] for key in env if key.startswith('PG')}
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return subprocess.CompletedProcess(self.subprocess_args, 0)
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with mock.patch('subprocess.run', new=_mock_subprocess_run):
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DatabaseClient.runshell_db(dbinfo)
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return self.subprocess_args, self.pg_env
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def test_basic(self):
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self.assertEqual(
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self._run_it({
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'database': 'dbname',
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'user': 'someuser',
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'password': 'somepassword',
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'host': 'somehost',
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'port': '444',
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}), (
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['psql', '-U', 'someuser', '-h', 'somehost', '-p', '444', 'dbname'],
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{'PGPASSWORD': 'somepassword'},
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)
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)
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def test_nopass(self):
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self.assertEqual(
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self._run_it({
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'database': 'dbname',
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'user': 'someuser',
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'host': 'somehost',
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'port': '444',
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}), (
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['psql', '-U', 'someuser', '-h', 'somehost', '-p', '444', 'dbname'],
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{},
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)
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)
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def test_ssl_certificate(self):
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self.assertEqual(
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self._run_it({
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'database': 'dbname',
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'user': 'someuser',
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'host': 'somehost',
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'port': '444',
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'sslmode': 'verify-ca',
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'sslrootcert': 'root.crt',
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'sslcert': 'client.crt',
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'sslkey': 'client.key',
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}), (
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['psql', '-U', 'someuser', '-h', 'somehost', '-p', '444', 'dbname'],
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{
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'PGSSLCERT': 'client.crt',
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'PGSSLKEY': 'client.key',
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'PGSSLMODE': 'verify-ca',
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'PGSSLROOTCERT': 'root.crt',
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},
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)
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)
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def test_column(self):
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self.assertEqual(
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self._run_it({
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'database': 'dbname',
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'user': 'some:user',
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'password': 'some:password',
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'host': '::1',
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'port': '444',
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}), (
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['psql', '-U', 'some:user', '-h', '::1', '-p', '444', 'dbname'],
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{'PGPASSWORD': 'some:password'},
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)
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)
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def test_accent(self):
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username = 'rôle'
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password = 'sésame'
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self.assertEqual(
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self._run_it({
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'database': 'dbname',
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'user': username,
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'password': password,
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'host': 'somehost',
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'port': '444',
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}), (
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['psql', '-U', username, '-h', 'somehost', '-p', '444', 'dbname'],
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{'PGPASSWORD': password},
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)
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)
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def test_sigint_handler(self):
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"""SIGINT is ignored in Python and passed to psql to abort queries."""
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def _mock_subprocess_run(*args, **kwargs):
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handler = signal.getsignal(signal.SIGINT)
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self.assertEqual(handler, signal.SIG_IGN)
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sigint_handler = signal.getsignal(signal.SIGINT)
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# The default handler isn't SIG_IGN.
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self.assertNotEqual(sigint_handler, signal.SIG_IGN)
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with mock.patch('subprocess.run', new=_mock_subprocess_run):
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DatabaseClient.runshell_db({})
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# dbshell restores the original handler.
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self.assertEqual(sigint_handler, signal.getsignal(signal.SIGINT))
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