Migrated string_lookup doctests. Thanks to Stephan Jaekel.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13895 bcc190cf-cafb-0310-a4f2-bffc1f526a37

tests/regressiontests/string_lookup/tests.py

@@ -0,0 +1,78 @@
+# -*- coding: utf-8 -*-
+from django.test import TestCase
+from regressiontests.string_lookup.models import Foo, Whiz, Bar, Article, Base, Child
+
+class StringLookupTests(TestCase):
+
+    def test_string_form_referencing(self):
+        """
+        Regression test for #1661 and #1662
+
+        Check that string form referencing of
+        models works, both as pre and post reference, on all RelatedField types.
+        """
+
+        f1 = Foo(name="Foo1")
+        f1.save()
+        f2 = Foo(name="Foo2")
+        f2.save()
+
+        w1 = Whiz(name="Whiz1")
+        w1.save()
+
+        b1 = Bar(name="Bar1", normal=f1, fwd=w1, back=f2)
+        b1.save()
+
+        self.assertEquals(b1.normal, f1)
+
+        self.assertEquals(b1.fwd, w1)
+
+        self.assertEquals(b1.back, f2)
+
+        base1 = Base(name="Base1")
+        base1.save()
+
+        child1 = Child(name="Child1", parent=base1)
+        child1.save()
+
+        self.assertEquals(child1.parent, base1)
+
+    def test_unicode_chars_in_queries(self):
+        """
+        Regression tests for #3937
+
+        make sure we can use unicode characters in queries.
+        If these tests fail on MySQL, it's a problem with the test setup.
+        A properly configured UTF-8 database can handle this.
+        """
+
+        fx = Foo(name='Bjorn', friend=u'François')
+        fx.save()
+        self.assertEquals(Foo.objects.get(friend__contains=u'\xe7'), fx)
+
+        # We can also do the above query using UTF-8 strings.
+        self.assertEquals(Foo.objects.get(friend__contains='\xc3\xa7'), fx)
+
+    def test_queries_on_textfields(self):
+        """
+        Regression tests for #5087
+
+        make sure we can perform queries on TextFields.
+        """
+
+        a = Article(name='Test', text='The quick brown fox jumps over the lazy dog.')
+        a.save()
+        self.assertEquals(Article.objects.get(text__exact='The quick brown fox jumps over the lazy dog.'), a)
+
+        self.assertEquals(Article.objects.get(text__contains='quick brown fox'), a)
+
+    def test_ipaddress_on_postgresql(self):
+        """
+        Regression test for #708
+
+        "like" queries on IP address fields require casting to text (on PostgreSQL).
+        """
+        a = Article(name='IP test', text='The body', submitted_from='192.0.2.100')
+        a.save()
+        self.assertEquals(repr(Article.objects.filter(submitted_from__contains='192.0.2')),
+            repr([a]))