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from StringIO import StringIO
from django.core.management import call_command
from django.test import TestCase, skipUnlessDBFeature
class InspectDBTestCase(TestCase):
@skipUnlessDBFeature('can_introspect_foreign_keys')
def test_attribute_name_not_python_keyword(self):
out = StringIO()
call_command('inspectdb', stdout=out)
error_message = "inspectdb generated an attribute name which is a python keyword"
self.assertNotIn("from = models.ForeignKey(InspectdbPeople)", out.getvalue(), msg=error_message)
self.assertIn("from_field = models.ForeignKey(InspectdbPeople)", out.getvalue())
self.assertIn("people_pk = models.ForeignKey(InspectdbPeople, primary_key=True)",
out.getvalue())
self.assertIn("people_unique = models.ForeignKey(InspectdbPeople, unique=True)",
out.getvalue())
out.close()
def test_digits_column_name_introspection(self):
"""Introspection of column names consist/start with digits (#16536/#17676)"""
out = StringIO()
call_command('inspectdb', stdout=out)
error_message = "inspectdb generated a model field name which is a number"
self.assertNotIn(" 123 = models.CharField", out.getvalue(), msg=error_message)
self.assertIn("number_123 = models.CharField", out.getvalue())
error_message = "inspectdb generated a model field name which starts with a digit"
self.assertNotIn(" 4extra = models.CharField", out.getvalue(), msg=error_message)
self.assertIn("number_4extra = models.CharField", out.getvalue())
self.assertNotIn(" 45extra = models.CharField", out.getvalue(), msg=error_message)
self.assertIn("number_45extra = models.CharField", out.getvalue())
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