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django/tests/backends/sqlite/test_operations.py

95 lines
3.1 KiB
Python

import unittest
from django.core.management.color import no_style
from django.db import connection
from django.test import TestCase
from ..models import Person, Tag
@unittest.skipUnless(connection.vendor == 'sqlite', 'SQLite tests.')
class SQLiteOperationsTests(TestCase):
def test_sql_flush(self):
self.assertEqual(
connection.ops.sql_flush(
no_style(),
[Person._meta.db_table, Tag._meta.db_table],
[],
),
[
'DELETE FROM "backends_person";',
'DELETE FROM "backends_tag";',
],
)
def test_sql_flush_allow_cascade(self):
statements = connection.ops.sql_flush(
no_style(),
[Person._meta.db_table, Tag._meta.db_table],
[],
allow_cascade=True,
)
self.assertEqual(
# The tables are processed in an unordered set.
sorted(statements),
[
'DELETE FROM "backends_person";',
'DELETE FROM "backends_tag";',
'DELETE FROM "backends_verylongmodelnamezzzzzzzzzzzzzzzzzzzzzz'
'zzzzzzzzzzzzzzzzzzzz_m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzz'
'zzzzzzzzzzzzzzzzzzzzzzz";',
],
)
def test_sql_flush_sequences(self):
# sequences doesn't change statements on SQLite.
self.assertEqual(
connection.ops.sql_flush(
no_style(),
[Person._meta.db_table, Tag._meta.db_table],
[
{
'table': Person._meta.db_table,
'column': Person._meta.pk.db_column,
},
{
'table': Tag._meta.db_table,
'column': Tag._meta.pk.db_column,
},
],
),
[
'DELETE FROM "backends_person";',
'DELETE FROM "backends_tag";',
],
)
def test_sql_flush_sequences_allow_cascade(self):
# sequences doesn't change statements on SQLite.
statements = connection.ops.sql_flush(
no_style(),
[Person._meta.db_table, Tag._meta.db_table],
[
{
'table': Person._meta.db_table,
'column': Person._meta.pk.db_column,
},
{
'table': Tag._meta.db_table,
'column': Tag._meta.pk.db_column,
},
],
allow_cascade=True,
)
self.assertEqual(
# The tables are processed in an unordered set.
sorted(statements),
[
'DELETE FROM "backends_person";',
'DELETE FROM "backends_tag";',
'DELETE FROM "backends_verylongmodelnamezzzzzzzzzzzzzzzzzzzzzz'
'zzzzzzzzzzzzzzzzzzzz_m2m_also_quite_long_zzzzzzzzzzzzzzzzzzzz'
'zzzzzzzzzzzzzzzzzzzzzzz";',
],
)