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Added feature flags for introspection capabilities.

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This commit is contained in:
Aymeric Augustin 2014-05-07 22:14:39 +02:00
parent cff59bedc2
commit 99d9fa329a
7 changed files with 88 additions and 44 deletions
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14
tests/introspection/tests.py
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@ -1,17 +1,10 @@
from __future__ import unicode_literals
import unittest
from django.db import connection
from django.test import TestCase, skipUnlessDBFeature, skipIfDBFeature
from .models import Reporter, Article
if connection.vendor == 'oracle':
expectedFailureOnOracle = unittest.expectedFailure
else:
expectedFailureOnOracle = lambda f: f
class IntrospectionTests(TestCase):
def test_table_names(self):
@ -61,19 +54,16 @@ class IntrospectionTests(TestCase):
def test_get_table_description_types(self):
with connection.cursor() as cursor:
desc = connection.introspection.get_table_description(cursor, Reporter._meta.db_table)
# The MySQL exception is due to the cursor.description returning the same constant for
# text and blob columns. TODO: use information_schema database to retrieve the proper
# field type on MySQL
self.assertEqual(
[datatype(r[1], r) for r in desc],
['AutoField' if connection.features.can_introspect_autofield else 'IntegerField',
'CharField', 'CharField', 'CharField', 'BigIntegerField',
'BinaryField' if connection.vendor != 'mysql' else 'TextField']
'BinaryField' if connection.features.can_introspect_binary_field else 'TextField']
)
# The following test fails on Oracle due to #17202 (can't correctly
# inspect the length of character columns).
@expectedFailureOnOracle
@skipUnlessDBFeature('can_introspect_max_length')
def test_get_table_description_col_lengths(self):
with connection.cursor() as cursor:
desc = connection.introspection.get_table_description(cursor, Reporter._meta.db_table)