59 lines
2.1 KiB
Python
59 lines
2.1 KiB
Python
from __future__ import with_statement, absolute_import
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from operator import attrgetter
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from django.test import TestCase, skipUnlessDBFeature
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from .models import Country, Restaurant, Pizzeria, State
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class BulkCreateTests(TestCase):
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def setUp(self):
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self.data = [
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Country(name="United States of America", iso_two_letter="US"),
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Country(name="The Netherlands", iso_two_letter="NL"),
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Country(name="Germany", iso_two_letter="DE"),
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Country(name="Czech Republic", iso_two_letter="CZ")
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]
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def test_simple(self):
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created = Country.objects.bulk_create(self.data)
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self.assertEqual(len(created), 4)
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self.assertQuerysetEqual(Country.objects.order_by("-name"), [
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"United States of America", "The Netherlands", "Germany", "Czech Republic"
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], attrgetter("name"))
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created = Country.objects.bulk_create([])
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self.assertEqual(created, [])
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self.assertEqual(Country.objects.count(), 4)
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@skipUnlessDBFeature("has_bulk_insert")
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def test_efficiency(self):
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with self.assertNumQueries(1):
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Country.objects.bulk_create(self.data)
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def test_inheritance(self):
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Restaurant.objects.bulk_create([
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Restaurant(name="Nicholas's")
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])
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self.assertQuerysetEqual(Restaurant.objects.all(), [
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"Nicholas's",
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], attrgetter("name"))
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with self.assertRaises(ValueError):
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Pizzeria.objects.bulk_create([
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Pizzeria(name="The Art of Pizza")
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])
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self.assertQuerysetEqual(Pizzeria.objects.all(), [])
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self.assertQuerysetEqual(Restaurant.objects.all(), [
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"Nicholas's",
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], attrgetter("name"))
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def test_non_auto_increment_pk(self):
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with self.assertNumQueries(1):
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State.objects.bulk_create([
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State(two_letter_code=s)
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for s in ["IL", "NY", "CA", "ME"]
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])
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self.assertQuerysetEqual(State.objects.order_by("two_letter_code"), [
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"CA", "IL", "ME", "NY",
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], attrgetter("two_letter_code")) |