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a35ab95ed4
Refs #27458, #27843. Thanks Tim and Mariusz for the review. Backport of ee85ef8315db839e5723dea19d8b971420a2ebb4 from master
34 lines
1.7 KiB
Python
34 lines
1.7 KiB
Python
from django.core.exceptions import ImproperlyConfigured
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from django.db.backends.utils import split_identifier, truncate_name
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from django.db.utils import load_backend
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from django.test import SimpleTestCase
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from django.utils import six
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class TestLoadBackend(SimpleTestCase):
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def test_load_backend_invalid_name(self):
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msg = (
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"'foo' isn't an available database backend.\n"
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"Try using 'django.db.backends.XXX', where XXX is one of:\n"
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" 'mysql', 'oracle', 'postgresql', 'sqlite3'\n"
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"Error was: No module named %s"
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) % "foo.base" if six.PY2 else "'foo'"
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with self.assertRaisesMessage(ImproperlyConfigured, msg):
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load_backend('foo')
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def test_truncate_name(self):
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self.assertEqual(truncate_name('some_table', 10), 'some_table')
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self.assertEqual(truncate_name('some_long_table', 10), 'some_la38a')
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self.assertEqual(truncate_name('some_long_table', 10, 3), 'some_loa38')
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self.assertEqual(truncate_name('some_long_table'), 'some_long_table')
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# "user"."table" syntax
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self.assertEqual(truncate_name('username"."some_table', 10), 'username"."some_table')
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self.assertEqual(truncate_name('username"."some_long_table', 10), 'username"."some_la38a')
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self.assertEqual(truncate_name('username"."some_long_table', 10, 3), 'username"."some_loa38')
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def test_split_identifier(self):
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self.assertEqual(split_identifier('some_table'), ('', 'some_table'))
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self.assertEqual(split_identifier('"some_table"'), ('', 'some_table'))
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self.assertEqual(split_identifier('namespace"."some_table'), ('namespace', 'some_table'))
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self.assertEqual(split_identifier('"namespace"."some_table"'), ('namespace', 'some_table'))
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