I am trying to get the simplest paste/nose test running by following
http://webpy.org/cookbook/testing_with_paste_and_nose and it's failing
for me in both Mac OS X and Ubuntu environments.

First, my error message:

$ WEBPY_ENV=test nosetests
F
======================================================================
FAIL: tests.test_code.TestCode.test_index
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.7/nose/case.py", line 186, in runTest
    self.test(*self.arg)
  File "/home/pete/python/sample/tests/test_code.py", line 9, in test_index
    r = testApp.get('/')
  File "/usr/lib/pymodules/python2.7/paste/fixture.py", line 208, in get
    return self.do_request(req, status=status)
  File "/usr/lib/pymodules/python2.7/paste/fixture.py", line 389, in do_request
    **req.environ)
  File "/usr/lib/pymodules/python2.7/paste/wsgilib.py", line 343, in
raw_interactive
    app_iter = application(basic_environ, start_response)
  File "/usr/lib/pymodules/python2.7/paste/lint.py", line 170, in lint_app
    iterator = application(environ, start_response_wrapper)
  File "/usr/lib/pymodules/python2.7/web/application.py", line 293, in wsgi
    start_resp(status, headers)
  File "/usr/lib/pymodules/python2.7/paste/lint.py", line 161, in
start_response_wrapper
    check_content_type(status, headers)
  File "/usr/lib/pymodules/python2.7/paste/lint.py", line 414, in
check_content_type
    assert 0, "No Content-Type header found in headers (%s)" % headers
AssertionError: No Content-Type header found in headers ([])

----------------------------------------------------------------------
Ran 1 test in 0.070s

FAILED (failures=1)

I've got the following installed (this is under Ubuntu 11.04):

ii  python                         2.7.1-0ubuntu5
interactive high-level object-oriented language (default version)
ii  python-nose                    0.11.4-0ubuntu1                test
discovery and running for Python's unittest
ii  python-paste                   1.7.5.1-1ubuntu1
tools for using a Web Server Gateway Interface stack
ii  python-webpy                   1:0.34-2                       Web
framework for Python applications

Here is my code file structure (empty __init__.py):

./code.py
./test
./test/test_code.py
./test/__init__.py

#### code.py ####

import web
import os

urls = ("/.*", "hello")
app = web.application(urls, globals())

class hello:
   def GET(self):
       return 'Hello, world!'

def is_test():
   if 'WEBPY_ENV' in os.environ:
       return os.environ['WEBPY_ENV'] == 'test'

if (not is_test()) and __name__ == "__main__":
app.run()

#### test_code.py ####

from paste.fixture import TestApp
from nose.tools import *
from code import app

class TestCode():
   def test_index(self):
       middleware = []
       testApp = TestApp(app.wsgifunc(*middleware))
       r = testApp.get('/')
       assert_equal(r.status, 200)
       r.mustcontain('Hello, world!')

Thanks in advance for all help,
Pete

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