diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/test.py b/tests/test_basic.py
similarity index 90%
rename from test.py
rename to tests/test_basic.py
index 10417ec..41b698e 100644
--- a/test.py
+++ b/tests/test_basic.py
@@ -5,7 +5,7 @@ import vcr
 from vcr.cassette import Cassette
 import urllib2
 from urllib import urlencode
-import json
+from utils import assert_httpbin_responses_equal
 
 TEST_CASSETTE_FILE = 'cassettes/test_req.yaml'
 
@@ -17,11 +17,6 @@ class TestHttpRequest(unittest.TestCase):
         except OSError:
             pass
 
-    def strip_origin(self, body):
-        body = json.loads(body)
-        del body['origin']
-        return body
-
     def test_response_code(self):
         code = urllib2.urlopen('http://httpbin.org/').getcode()
         with vcr.use_cassette(TEST_CASSETTE_FILE):
@@ -42,18 +37,16 @@ class TestHttpRequest(unittest.TestCase):
     def test_multiple_requests(self):
         body1 = urllib2.urlopen('http://httpbin.org/').read()
         body2 = urllib2.urlopen('http://httpbin.org/get').read()
-        body2 = self.strip_origin(body2)
         with vcr.use_cassette(TEST_CASSETTE_FILE):
             self.assertEqual(body1, urllib2.urlopen('http://httpbin.org/').read())
             new_body2 = urllib2.urlopen('http://httpbin.org/get').read()
-            new_body2 = self.strip_origin(new_body2)
-            self.assertEqual(body2, new_body2)
+            
+            assert_httpbin_responses_equal(body2, new_body2)
 
             self.assertEqual(body1, urllib2.urlopen('http://httpbin.org/').read())
             new_body2 = urllib2.urlopen('http://httpbin.org/get').read()
-            new_body2 = self.strip_origin(new_body2)
-            self.assertEqual(body2, new_body2)
 
+            assert_httpbin_responses_equal(body2, new_body2)
 
 class TestHttps(unittest.TestCase):
 
@@ -109,10 +102,6 @@ class TestCassette(unittest.TestCase):
         self.assertEqual(c1.requests, c2.requests)
         self.assertEqual(c1.responses, c2.responses)
 
-try:
-    from test_requests import *
-except ImportError:
-    pass
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/test_requests.py b/tests/test_requests.py
similarity index 83%
rename from test_requests.py
rename to tests/test_requests.py
index d458328..db90ed6 100644
--- a/test_requests.py
+++ b/tests/test_requests.py
@@ -2,18 +2,20 @@
 import os
 import unittest
 import vcr
-import requests
+import pytest
+from utils import assert_httpbin_responses_equal
+
+requests = pytest.importorskip("requests")
 
 TEST_CASSETTE_FILE = 'cassettes/test_req.yaml'
 
-
 class TestRequestsGet(unittest.TestCase):
 
     def setUp(self):
-        self.unmolested_response = requests.get('http://httpbin.org/')
+        self.unmolested_response = requests.get('http://httpbin.org/get')
         with vcr.use_cassette(TEST_CASSETTE_FILE):
-            self.initial_response = requests.get('http://httpbin.org/')
-            self.cached_response = requests.get('http://httpbin.org/')
+            self.initial_response = requests.get('http://httpbin.org/get')
+            self.cached_response = requests.get('http://httpbin.org/get')
 
     def tearDown(self):
         try:
@@ -34,10 +36,10 @@ class TestRequestsGet(unittest.TestCase):
         self.assertEqual(self.unmolested_response.headers['content-type'], self.cached_response.headers['content-type'])
 
     def test_initial_response_text(self):
-        self.assertEqual(self.unmolested_response.text, self.initial_response.text)
+        assert_httpbin_responses_equal(self.unmolested_response.text, self.initial_response.text)
 
     def test_cached_response_text(self):
-        self.assertEqual(self.unmolested_response.text, self.cached_response.text)
+        assert_httpbin_responses_equal(self.unmolested_response.text, self.cached_response.text)
 
 
 class TestRequestsAuth(unittest.TestCase):
@@ -64,7 +66,6 @@ class TestRequestsAuth(unittest.TestCase):
         auth_fail_cached = requests.get('https://httpbin.org/basic-auth/user/passwd', auth=('user', 'passwdzzz'))
         self.assertNotEqual(self.unmolested_response.status_code, auth_fail_cached.status_code)
 
-
 class TestRequestsPost(unittest.TestCase):
 
     def setUp(self):
@@ -81,10 +82,10 @@ class TestRequestsPost(unittest.TestCase):
             pass
 
     def test_initial_post_response_text(self):
-        self.assertEqual(self.unmolested_response.text, self.initial_response.text)
+        assert_httpbin_responses_equal(self.unmolested_response.text, self.initial_response.text)
 
     def test_cached_post_response_text(self):
-        self.assertEqual(self.unmolested_response.text, self.cached_response.text)
+        assert_httpbin_responses_equal(self.unmolested_response.text, self.cached_response.text)
 
 
 class TestRequestsHTTPS(unittest.TestCase):
@@ -103,7 +104,7 @@ class TestRequestsHTTPS(unittest.TestCase):
             pass
 
     def test_initial_https_response_text(self):
-        self.assertEqual(self.unmolested_response.text, self.initial_response.text)
+        assert_httpbin_responses_equal(self.unmolested_response.text, self.initial_response.text)
 
     def test_cached_https_response_text(self):
-        self.assertEqual(self.unmolested_response.text, self.cached_response.text)
+        assert_httpbin_responses_equal(self.unmolested_response.text, self.cached_response.text)
diff --git a/tests/utils.py b/tests/utils.py
new file mode 100644
index 0000000..09f5733
--- /dev/null
+++ b/tests/utils.py
@@ -0,0 +1,13 @@
+import json
+
+def assert_httpbin_responses_equal(body1, body2):
+    """
+    httpbin.org returns a different `origin` header 
+    each time, so strip this out since it makes testing
+    difficult.
+    """
+    body1, body2 = json.loads(body1), json.loads(body2)
+    del body1['origin']
+    del body2['origin']
+    assert body1 == body2
+
diff --git a/tox.ini b/tox.ini
index f2f6cce..e3fd915 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,24 +8,28 @@ envlist = py26, py27, pypy, py26requests, py27requests, pypyrequests
 
 [testenv]
 commands =
-    python test.py
+    py.test
 deps =
+    pytest
     PyYAML
 
 [testenv:py26requests]
 basepython = python2.6
 deps =
+    pytest
     PyYAML
     requests
 
 [testenv:py27requests]
 basepython = python2.7
 deps =
+    pytest
     PyYAML
     requests
 
 [testenv:pypyrequests]
 basepython = pypy
 deps =
+    pytest
     PyYAML
     requests