Adding test for redirect that we'll need on bouncer.

README.md

@@ -1,4 +1,10 @@
 bouncer-tests
 =============
 
-Tests for Mozilla's Bouncer
+Tests for Mozilla's Bouncer
+
+To run these tests, use:
+
+py.test  tests/test_redirects.py --baseurl="http://your.url.com"
+
+Use -k to run a specific test.

tests/test_redirects.py

@@ -126,3 +126,18 @@ def test_redirect_for_firefox_aliases(self, testsetup, product_alias):
             ):
                 Assert.contains('/%s/' % 'win32', parsed_url.path,
                                 '\n %s' % self.response_info(response))
+
+    def test_redirect_for_windows_200_to_2001(self, testsetup):
+
+        url = testsetup.base_url
+        param = {
+            'product' : 'firefox-20.0',
+            'os': 'win',
+            'lang' : 'en-US',
+        }
+
+        response = self._head_request(url, params=param)
+
+        parsed_url = urlparse(response.url)
+
+        Assert.true('20.0.1' in parsed_url.query, 'Redirect failed using params of %s' % (parsed_url.query))