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69 lines
1.9 KiB
Python
69 lines
1.9 KiB
Python
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# -*- encoding: utf-8 -*-
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from __future__ import unicode_literals
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from types import MethodType
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from django.core.checks import Error
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from django.db import connection, models
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from .base import IsolatedModelsTestCase
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class BackendSpecificChecksTests(IsolatedModelsTestCase):
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def test_check_field(self):
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""" Test if backend specific checks are performed. """
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error = Error('an error', hint=None)
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def mock(self, field, **kwargs):
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return [error]
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class Model(models.Model):
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field = models.IntegerField()
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field = Model._meta.get_field('field')
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# Mock connection.validation.check_field method.
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v = connection.validation
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old_check_field = v.check_field
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v.check_field = MethodType(mock, v)
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try:
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errors = field.check()
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finally:
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# Unmock connection.validation.check_field method.
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v.check_field = old_check_field
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self.assertEqual(errors, [error])
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def test_validate_field(self):
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""" Errors raised by deprecated `validate_field` method should be
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collected. """
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def mock(self, errors, opts, field):
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errors.add(opts, "An error!")
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class Model(models.Model):
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field = models.IntegerField()
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field = Model._meta.get_field('field')
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expected = [
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Error(
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"An error!",
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hint=None,
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obj=field,
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)
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]
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# Mock connection.validation.validate_field method.
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v = connection.validation
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old_validate_field = v.validate_field
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v.validate_field = MethodType(mock, v)
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try:
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errors = field.check()
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finally:
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# Unmock connection.validation.validate_field method.
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v.validate_field = old_validate_field
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self.assertEqual(errors, expected)
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