Migrated m2m_intermediary doctests. Thanks to Alex Gaynor.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13787 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/m2m_intermediary/tests.py

@@ -0,0 +1,38 @@
+from datetime import datetime
+
+from django.test import TestCase
+
+from models import Reporter, Article, Writer
+
+
+class M2MIntermediaryTests(TestCase):
+    def test_intermeiary(self):
+        r1 = Reporter.objects.create(first_name="John", last_name="Smith")
+        r2 = Reporter.objects.create(first_name="Jane", last_name="Doe")
+
+        a = Article.objects.create(
+            headline="This is a test", pub_date=datetime(2005, 7, 27)
+        )
+
+        w1 = Writer.objects.create(reporter=r1, article=a, position="Main writer")
+        w2 = Writer.objects.create(reporter=r2, article=a, position="Contributor")
+
+        self.assertQuerysetEqual(
+            a.writer_set.select_related().order_by("-position"), [
+                ("John Smith", "Main writer"),
+                ("Jane Doe", "Contributor"),
+            ],
+            lambda w: (unicode(w.reporter), w.position)
+        )
+        self.assertEqual(w1.reporter, r1)
+        self.assertEqual(w2.reporter, r2)
+
+        self.assertEqual(w1.article, a)
+        self.assertEqual(w2.article, a)
+
+        self.assertQuerysetEqual(
+            r1.writer_set.all(), [
+                ("John Smith", "Main writer")
+            ],
+            lambda w: (unicode(w.reporter), w.position)
+        )