magic-removal: Moved model unit tests from 'testapp' package into 'modeltests' package, with each model test getting its own app

git-svn-id: http://code.djangoproject.com/svn/django/branches/magic-removal@1606 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/modeltests/repr/models.py

@@ -0,0 +1,31 @@
+"""
+2. Adding __repr__() to models
+
+Although it's not a strict requirement, each model should have a ``__repr__()``
+method to return a "human-readable" representation of the object. Do this not
+only for your own sanity when dealing with the interactive prompt, but also
+because objects' representations are used throughout Django's
+automatically-generated admin.
+"""
+
+from django.core import meta
+
+class Article(meta.Model):
+    headline = meta.CharField(maxlength=100)
+    pub_date = meta.DateTimeField()
+
+    def __repr__(self):
+        return self.headline
+
+API_TESTS = """
+# Create an Article.
+>>> from datetime import datetime
+>>> a = Article(headline='Area man programs in Python', pub_date=datetime(2005, 7, 28))
+>>> a.save()
+
+>>> repr(a)
+'Area man programs in Python'
+
+>>> a
+Area man programs in Python
+"""