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92 lines
3.6 KiB
Python
92 lines
3.6 KiB
Python
import unittest
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from decimal import Decimal
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from django.db import connection
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from django.db.backends.signals import connection_created
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from django.db.migrations.writer import MigrationWriter
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from django.test import TestCase
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from django.test.utils import CaptureQueriesContext, modify_settings, override_settings
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try:
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from django.contrib.postgres.fields import (
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DateRangeField,
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DateTimeRangeField,
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DecimalRangeField,
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IntegerRangeField,
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)
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from django.contrib.postgres.signals import get_hstore_oids
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from django.db.backends.postgresql.psycopg_any import (
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DateRange,
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DateTimeRange,
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DateTimeTZRange,
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NumericRange,
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is_psycopg3,
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)
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except ImportError:
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pass
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@unittest.skipUnless(connection.vendor == "postgresql", "PostgreSQL specific tests")
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class PostgresConfigTests(TestCase):
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def test_install_app_no_warning(self):
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# Clear cache to force queries when (re)initializing the
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# "django.contrib.postgres" app.
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get_hstore_oids.cache_clear()
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with CaptureQueriesContext(connection) as captured_queries:
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with override_settings(INSTALLED_APPS=["django.contrib.postgres"]):
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pass
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self.assertGreaterEqual(len(captured_queries), 1)
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def test_register_type_handlers_connection(self):
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from django.contrib.postgres.signals import register_type_handlers
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self.assertNotIn(
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register_type_handlers, connection_created._live_receivers(None)[0]
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)
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with modify_settings(INSTALLED_APPS={"append": "django.contrib.postgres"}):
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self.assertIn(
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register_type_handlers, connection_created._live_receivers(None)[0]
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)
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self.assertNotIn(
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register_type_handlers, connection_created._live_receivers(None)[0]
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)
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def test_register_serializer_for_migrations(self):
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tests = (
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(DateRange(empty=True), DateRangeField),
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(DateTimeRange(empty=True), DateRangeField),
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(DateTimeTZRange(None, None, "[]"), DateTimeRangeField),
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(NumericRange(Decimal("1.0"), Decimal("5.0"), "()"), DecimalRangeField),
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(NumericRange(1, 10), IntegerRangeField),
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)
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def assertNotSerializable():
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for default, test_field in tests:
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with self.subTest(default=default):
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field = test_field(default=default)
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with self.assertRaisesMessage(
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ValueError, "Cannot serialize: %s" % default.__class__.__name__
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):
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MigrationWriter.serialize(field)
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assertNotSerializable()
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import_name = "psycopg.types.range" if is_psycopg3 else "psycopg2.extras"
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with self.modify_settings(INSTALLED_APPS={"append": "django.contrib.postgres"}):
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for default, test_field in tests:
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with self.subTest(default=default):
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field = test_field(default=default)
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serialized_field, imports = MigrationWriter.serialize(field)
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self.assertEqual(
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imports,
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{
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"import django.contrib.postgres.fields.ranges",
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f"import {import_name}",
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},
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)
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self.assertIn(
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f"{field.__module__}.{field.__class__.__name__}"
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f"(default={import_name}.{default!r})",
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serialized_field,
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)
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assertNotSerializable()
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