78 lines
2.9 KiB
Python
78 lines
2.9 KiB
Python
from decimal import Decimal
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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.utils import modify_settings
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from . import PostgreSQLTestCase
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try:
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from psycopg2.extras import DateRange, DateTimeRange, DateTimeTZRange, NumericRange
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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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except ImportError:
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pass
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class PostgresConfigTests(PostgreSQLTestCase):
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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)
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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)
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)
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self.assertNotIn(
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register_type_handlers, connection_created._live_receivers(None)
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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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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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"import psycopg2.extras",
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},
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)
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self.assertIn(
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"%s.%s(default=psycopg2.extras.%r)"
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% (
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field.__module__,
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field.__class__.__name__,
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default,
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),
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serialized_field,
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)
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assertNotSerializable()
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