from __future__ import unicode_literals from django.core.management import call_command from django.test import TestCase, skipUnlessDBFeature from django.utils.six import StringIO class InspectDBTestCase(TestCase): def test_stealth_table_name_filter_option(self): out = StringIO() # Lets limit the introspection to tables created for models of this # application call_command('inspectdb', table_name_filter=lambda tn:tn.startswith('inspectdb_'), stdout=out) error_message = "inspectdb has examined a table that should have been filtered out." # contrib.contenttypes is one of the apps always installed when running # the Django test suite, check that one of its tables hasn't been # inspected self.assertNotIn("class DjangoContentType(models.Model):", out.getvalue(), msg=error_message) @skipUnlessDBFeature('can_introspect_foreign_keys') def test_attribute_name_not_python_keyword(self): out = StringIO() # Lets limit the introspection to tables created for models of this # application call_command('inspectdb', table_name_filter=lambda tn:tn.startswith('inspectdb_'), stdout=out) output = out.getvalue() error_message = "inspectdb generated an attribute name which is a python keyword" self.assertNotIn("from = models.ForeignKey(InspectdbPeople)", output, msg=error_message) # As InspectdbPeople model is defined after InspectdbMessage, it should be quoted self.assertIn("from_field = models.ForeignKey('InspectdbPeople', db_column='from_id')", output) self.assertIn("people_pk = models.ForeignKey(InspectdbPeople, primary_key=True)", output) self.assertIn("people_unique = models.ForeignKey(InspectdbPeople, unique=True)", output) def test_digits_column_name_introspection(self): """Introspection of column names consist/start with digits (#16536/#17676)""" out = StringIO() # Lets limit the introspection to tables created for models of this # application call_command('inspectdb', table_name_filter=lambda tn:tn.startswith('inspectdb_'), stdout=out) output = out.getvalue() error_message = "inspectdb generated a model field name which is a number" self.assertNotIn(" 123 = models.CharField", output, msg=error_message) self.assertIn("number_123 = models.CharField", output) error_message = "inspectdb generated a model field name which starts with a digit" self.assertNotIn(" 4extra = models.CharField", output, msg=error_message) self.assertIn("number_4extra = models.CharField", output) self.assertNotIn(" 45extra = models.CharField", output, msg=error_message) self.assertIn("number_45extra = models.CharField", output) def test_special_column_name_introspection(self): """Introspection of column names containing special characters, unsuitable for Python identifiers """ out = StringIO() call_command('inspectdb', stdout=out) output = out.getvalue() self.assertIn("field = models.IntegerField()", output) self.assertIn("field_field = models.IntegerField(db_column='Field_')", output) self.assertIn("field_field_0 = models.IntegerField(db_column='Field__')", output) self.assertIn("field_field_1 = models.IntegerField(db_column='__field')", output) self.assertIn("prc_x = models.IntegerField(db_column='prc(%) x')", output)