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Refactored RecursiveM2MTests into smaller pieces, refs #18586.
This commit is contained in:
Chris Bailey
Tim Graham
parent
c5395eef76
commit
0d98422b13
@ -8,22 +8,23 @@ from .models import Person
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class RecursiveM2MTests(TestCase):
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def test_recursive_m2m(self):
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a, b, c, d = [
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def setUp(self):
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self.a, self.b, self.c, self.d = [
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Person.objects.create(name=name)
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for name in ["Anne", "Bill", "Chuck", "David"]
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]
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# Add some friends in the direction of field definition
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# Anne is friends with Bill and Chuck
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a.friends.add(b, c)
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self.a.friends.add(self.b, self.c)
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# David is friends with Anne and Chuck - add in reverse direction
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d.friends.add(a, c)
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self.d.friends.add(self.a, self.c)
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def test_recursive_m2m_all(self):
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""" Test that m2m relations are reported correctly """
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# Who is friends with Anne?
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self.assertQuerysetEqual(
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a.friends.all(), [
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self.a.friends.all(), [
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"Bill",
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"Chuck",
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"David"
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@ -33,14 +34,14 @@ class RecursiveM2MTests(TestCase):
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)
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# Who is friends with Bill?
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self.assertQuerysetEqual(
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b.friends.all(), [
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self.b.friends.all(), [
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"Anne",
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],
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attrgetter("name")
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)
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# Who is friends with Chuck?
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self.assertQuerysetEqual(
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c.friends.all(), [
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self.c.friends.all(), [
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"Anne",
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"David"
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],
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@ -49,20 +50,24 @@ class RecursiveM2MTests(TestCase):
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)
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# Who is friends with David?
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self.assertQuerysetEqual(
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d.friends.all(), [
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self.d.friends.all(), [
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"Anne",
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"Chuck",
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],
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attrgetter("name"),
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ordered=False
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)
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def test_recursive_m2m_reverse_add(self):
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""" Test reverse m2m relation is consistent """
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# Bill is already friends with Anne - add Anne again, but in the
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# reverse direction
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b.friends.add(a)
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self.b.friends.add(self.a)
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# Who is friends with Anne?
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self.assertQuerysetEqual(
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a.friends.all(), [
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self.a.friends.all(), [
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"Bill",
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"Chuck",
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"David",
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@ -72,16 +77,21 @@ class RecursiveM2MTests(TestCase):
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)
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# Who is friends with Bill?
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self.assertQuerysetEqual(
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b.friends.all(), [
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self.b.friends.all(), [
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"Anne",
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],
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attrgetter("name")
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)
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def test_recursive_m2m_remove(self):
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""" Test that we can remove items from an m2m relationship """
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# Remove Anne from Bill's friends
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b.friends.remove(a)
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self.b.friends.remove(self.a)
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# Who is friends with Anne?
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self.assertQuerysetEqual(
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a.friends.all(), [
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self.a.friends.all(), [
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"Chuck",
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"David",
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],
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@ -90,44 +100,46 @@ class RecursiveM2MTests(TestCase):
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)
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# Who is friends with Bill?
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self.assertQuerysetEqual(
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b.friends.all(), []
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self.b.friends.all(), []
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)
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def test_recursive_m2m_clear(self):
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""" Tests the clear method works as expected on m2m fields """
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# Clear Anne's group of friends
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a.friends.clear()
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self.a.friends.clear()
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# Who is friends with Anne?
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self.assertQuerysetEqual(
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a.friends.all(), []
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self.a.friends.all(), []
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)
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# Reverse relationships should also be gone
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# Who is friends with Chuck?
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self.assertQuerysetEqual(
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c.friends.all(), [
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self.c.friends.all(), [
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"David",
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],
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attrgetter("name")
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)
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# Who is friends with David?
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self.assertQuerysetEqual(
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d.friends.all(), [
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self.d.friends.all(), [
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"Chuck",
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],
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attrgetter("name")
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)
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# Add some idols in the direction of field definition
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# Anne idolizes Bill and Chuck
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a.idols.add(b, c)
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# Bill idolizes Anne right back
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b.idols.add(a)
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def test_recursive_m2m_add_via_related_name(self):
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""" Tests that we can add m2m relations via the related_name attribute """
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# David is idolized by Anne and Chuck - add in reverse direction
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d.stalkers.add(a, c)
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self.d.stalkers.add(self.a)
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# Who are Anne's idols?
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self.assertQuerysetEqual(
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a.idols.all(), [
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"Bill",
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"Chuck",
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self.a.idols.all(), [
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"David",
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],
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attrgetter("name"),
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@ -135,130 +147,49 @@ class RecursiveM2MTests(TestCase):
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)
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# Who is stalking Anne?
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self.assertQuerysetEqual(
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a.stalkers.all(), [
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"Bill",
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],
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self.a.stalkers.all(), [],
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attrgetter("name")
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)
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# Who are Bill's idols?
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self.assertQuerysetEqual(
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b.idols.all(), [
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"Anne",
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],
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attrgetter("name")
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)
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# Who is stalking Bill?
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self.assertQuerysetEqual(
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b.stalkers.all(), [
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"Anne",
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],
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attrgetter("name")
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)
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# Who are Chuck's idols?
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self.assertQuerysetEqual(
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c.idols.all(), [
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"David",
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],
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attrgetter("name"),
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)
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# Who is stalking Chuck?
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self.assertQuerysetEqual(
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c.stalkers.all(), [
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"Anne",
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],
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attrgetter("name")
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)
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# Who are David's idols?
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self.assertQuerysetEqual(
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d.idols.all(), []
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)
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# Who is stalking David
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self.assertQuerysetEqual(
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d.stalkers.all(), [
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"Anne",
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"Chuck",
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],
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attrgetter("name"),
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ordered=False
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)
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# Bill is already being stalked by Anne - add Anne again, but in the
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# reverse direction
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b.stalkers.add(a)
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def test_recursive_m2m_add_in_both_directions(self):
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""" Check that adding the same relation twice results in a single relation """
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# Ann idolizes David
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self.a.idols.add(self.d)
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# David is idolized by Anne
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self.d.stalkers.add(self.a)
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# Who are Anne's idols?
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self.assertQuerysetEqual(
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a.idols.all(), [
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"Bill",
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"Chuck",
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self.a.idols.all(), [
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"David",
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],
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attrgetter("name"),
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ordered=False
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)
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# Who is stalking Anne?
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self.assertQuerysetEqual(
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a.stalkers.all(), [
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"Bill",
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],
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attrgetter("name")
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)
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# Who are Bill's idols
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self.assertQuerysetEqual(
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b.idols.all(), [
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"Anne",
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],
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attrgetter("name")
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)
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# Who is stalking Bill?
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self.assertQuerysetEqual(
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b.stalkers.all(), [
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"Anne",
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],
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attrgetter("name"),
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)
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# Remove Anne from Bill's list of stalkers
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b.stalkers.remove(a)
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# As the assertQuerysetEqual uses a set for comparrison,
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# check we've only got David listed once
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self.assertEqual(self.a.idols.all().count(), 1)
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def test_recursive_m2m_related_to_self(self):
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""" Check the expected behaviour when an instance is related to itself """
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# Ann idolizes herself
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self.a.idols.add(self.a)
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# Who are Anne's idols?
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self.assertQuerysetEqual(
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a.idols.all(), [
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"Chuck",
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"David",
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self.a.idols.all(), [
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"Anne",
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],
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attrgetter("name"),
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ordered=False
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)
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# Who is stalking Anne?
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self.assertQuerysetEqual(
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a.stalkers.all(), [
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"Bill",
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],
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attrgetter("name")
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)
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# Who are Bill's idols?
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self.assertQuerysetEqual(
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b.idols.all(), [
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self.a.stalkers.all(), [
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"Anne",
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],
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attrgetter("name")
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)
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# Who is stalking Bill?
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self.assertQuerysetEqual(
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b.stalkers.all(), []
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)
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# Clear Anne's group of idols
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a.idols.clear()
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# Who are Anne's idols
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self.assertQuerysetEqual(
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a.idols.all(), []
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)
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# Reverse relationships should also be gone
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# Who is stalking Chuck?
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self.assertQuerysetEqual(
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c.stalkers.all(), []
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)
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# Who is friends with David?
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self.assertQuerysetEqual(
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d.stalkers.all(), [
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"Chuck",
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],
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attrgetter("name")
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)
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