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Code Issues 32 Releases Wiki Activity

Add tests for the migrate command and fix a bug they exposed

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This commit is contained in:
Andrew Godwin
2013-07-25 13:52:35 +01:00
parent 162f7b938f
commit 00276e0414
6 changed files with 84 additions and 37 deletions
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35
tests/migrations/test_operations.py
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@@ -1,48 +1,17 @@
from django.test import TestCase
from django.db import connection, models, migrations
from django.db.transaction import atomic
from django.db.utils import IntegrityError
from django.db.migrations.state import ProjectState
from .test_base import MigrationTestBase
class OperationTests(TestCase):
class OperationTests(MigrationTestBase):
"""
Tests running the operations and making sure they do what they say they do.
Each test looks at their state changing, and then their database operation -
both forwards and backwards.
"""
def assertTableExists(self, table):
self.assertIn(table, connection.introspection.get_table_list(connection.cursor()))
def assertTableNotExists(self, table):
self.assertNotIn(table, connection.introspection.get_table_list(connection.cursor()))
def assertColumnExists(self, table, column):
self.assertIn(column, [c.name for c in connection.introspection.get_table_description(connection.cursor(), table)])
def assertColumnNotExists(self, table, column):
self.assertNotIn(column, [c.name for c in connection.introspection.get_table_description(connection.cursor(), table)])
def assertColumnNull(self, table, column):
self.assertEqual([c.null_ok for c in connection.introspection.get_table_description(connection.cursor(), table) if c.name == column][0], True)
def assertColumnNotNull(self, table, column):
self.assertEqual([c.null_ok for c in connection.introspection.get_table_description(connection.cursor(), table) if c.name == column][0], False)
def assertIndexExists(self, table, columns, value=True):
self.assertEqual(
value,
any(
c["index"]
for c in connection.introspection.get_constraints(connection.cursor(), table).values()
if c['columns'] == list(columns)
),
)
def assertIndexNotExists(self, table, columns):
return self.assertIndexExists(table, columns, False)
def set_up_test_model(self, app_label):
"""
Creates a test model state and database table.