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39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
from datetime import datetime
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from django.test import TestCase
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from .models import Article, Reporter, Writer
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class M2MIntermediaryTests(TestCase):
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def test_intermediary(self):
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r1 = Reporter.objects.create(first_name="John", last_name="Smith")
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r2 = Reporter.objects.create(first_name="Jane", last_name="Doe")
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a = Article.objects.create(
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headline="This is a test", pub_date=datetime(2005, 7, 27)
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)
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w1 = Writer.objects.create(reporter=r1, article=a, position="Main writer")
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w2 = Writer.objects.create(reporter=r2, article=a, position="Contributor")
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self.assertQuerySetEqual(
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a.writer_set.select_related().order_by("-position"),
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[
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("John Smith", "Main writer"),
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("Jane Doe", "Contributor"),
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],
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lambda w: (str(w.reporter), w.position),
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)
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self.assertEqual(w1.reporter, r1)
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self.assertEqual(w2.reporter, r2)
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self.assertEqual(w1.article, a)
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self.assertEqual(w2.article, a)
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self.assertQuerySetEqual(
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r1.writer_set.all(),
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[("John Smith", "Main writer")],
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lambda w: (str(w.reporter), w.position),
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)
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