Fix up the tests and add tox configuration to run them

The alfajor HTTP test wrapper is not working properly.  All the tests
are failing with:

  AttributeError: '_APIClientResponse' object has no attribute '_status_code'

It doesn't look like alfajor is being maintained any more [1, 2], so
remove the dependency on it and run the tests directly through the
werkzeug client instead.

The test_json_get_styles test still failed because the content and
ordering of the styles returned from the API is dependent on the
platform on which the tests run.  Instead of testing against a fixed
expected result, which could be different on another platform,
generate the expected results dynamically.

Update the tox configuration and test-requirements.txt to be able to
run the tests via tox.

[1] https://github.com/idealist/Alfajor
[2] https://github.com/idealistdev/alfajor

Change-Id: I4db6783b9d725ce096575035ea27d28be8e6fed5

test-requirements.txt

@@ -1,2 +1,2 @@
 flake8
-
+nose

tests/__init__.py

@@ -1,4 +1,21 @@
-from alfajor import APIClient
+from werkzeug.test import Client
+from werkzeug.wrappers import BaseResponse
+from lodgeit.application import make_app
+from json import loads
 
-client = APIClient()
-client.configure_in_scope('default')
+client = Client(make_app('sqlite://', 'NONE', False, True), BaseResponse)
+
+
+def is_json(response):
+    """True if the response is JSON and the HTTP status was 200."""
+    return (response.status_code == 200 and
+            response.headers.get('Content-Type', '') == 'application/json')
+
+
+def json(response):
+    """The response parsed as JSON.
+
+    No attempt is made to ensure the response is valid or even looks
+    like JSON before parsing.
+    """
+    return loads(response.data)

tests/alfajor.ini

@@ -1,9 +0,0 @@
-[default-targets]
-default+apiclient=wsgi
-
-[default]
-wsgi=wsgi
-
-[default+apiclient.wsgi]
-server-entry-point = tests.utilities.runner:foo
-base_url = http://www.localhost:5001

tests/unittest/test_api.py

@@ -1,5 +1,6 @@
-from tests import client
+from tests import client, is_json, json
 from tests.utilities.runner import testcase
+from lodgeit.lib.highlighting import STYLES
 
 
 def post_json(method, data=None):
@@ -12,12 +13,12 @@ def test_json_post_and_get():
     data = '{"language": "text", "code": "hello world"}'
     resp = post_json('pastes.newPaste', data)
 
-    assert resp.is_json
+    assert is_json(resp)
     resp = post_json('pastes.getPaste',
-                     '{"paste_id": "%d"}' % int(resp.json['data']))
-    assert resp.is_json
-    assert resp.json['data']['code'] == "hello world"
-    assert resp.json['data']['language'] == "text"
+                     '{"paste_id": "%d"}' % int(json(resp)['data']))
+    assert is_json(resp)
+    assert json(resp)['data']['code'] == "hello world"
+    assert json(resp)['data']['language'] == "text"
 
 
 @testcase()
@@ -25,28 +26,28 @@ def test_json_post_private_and_get():
     data = '{"language": "text", "code": "hello world", "private": "true"}'
     resp = post_json('pastes.newPaste', data)
 
-    assert resp.is_json
+    assert is_json(resp)
     resp = post_json('pastes.getPaste',
-                     '{"paste_id": "%s"}' % resp.json['data'])
-    assert resp.is_json
-    assert resp.json['data']['code'] == "hello world"
-    assert resp.json['data']['language'] == "text"
+                     '{"paste_id": "%s"}' % json(resp)['data'])
+    assert is_json(resp)
+    assert json(resp)['data']['code'] == "hello world"
+    assert json(resp)['data']['language'] == "text"
 
 
 @testcase()
 def test_json_get_last():
     data = '{"language": "text", "code": "hello world"}'
     resp = post_json('pastes.newPaste', data)
-    assert resp.is_json
+    assert is_json(resp)
 
     data = '{"language": "text", "code": "hello world again"}'
     resp = post_json('pastes.newPaste', data)
-    assert resp.is_json
+    assert is_json(resp)
 
     resp = post_json('pastes.getLast')
-    assert resp.is_json
-    assert resp.json['data']['code'] == "hello world again"
-    assert resp.json['data']['language'] == "text"
+    assert is_json(resp)
+    assert json(resp)['data']['code'] == "hello world again"
+    assert json(resp)['data']['language'] == "text"
 
 
 @testcase()
@@ -54,43 +55,24 @@ def test_json_get_recent():
     def run(inc):
         data = '{"language": "text", "code": "hello world %s"}' % inc
         resp = post_json('pastes.newPaste', data)
-        assert resp.is_json
+        assert is_json(resp)
         return resp
 
     paste_ids = []
     for x in xrange(10):
         resp = run(x)
-        paste_ids.append(int(resp.json['data']))
+        paste_ids.append(int(json(resp)['data']))
 
     resp = post_json('pastes.getRecent', '{"amount": 7}')
-    assert resp.is_json
-    assert len(resp.json['data']) == 7
-    ids = [x['paste_id'] for x in resp.json['data']]
+    assert is_json(resp)
+    assert len(json(resp)['data']) == 7
+    ids = [x['paste_id'] for x in json(resp)['data']]
     assert ids[::-1] == paste_ids[3:]
 
 
 @testcase()
 def test_json_get_styles():
-    styles = [
-        ['monokai', 'Monokai'],
-        ['manni', 'Manni'],
-        ['perldoc', 'Perldoc'],
-        ['borland', 'Borland'],
-        ['colorful', 'Colorful'],
-        ['default', 'Default'],
-        ['murphy', 'Murphy'],
-        ['trac', 'Trac'],
-        ['tango', 'Tango'],
-        ['vim', 'Vim'],
-        ['autumn', 'Autumn'],
-        ['vs', 'Vs'],
-        ['emacs', 'Emacs'],
-        ['friendly', 'Friendly'],
-        ['bw', 'Bw'],
-        ['pastie', 'Pastie'],
-        ['fruity', 'Fruity'],
-        ['native', 'Native'],
-        ]
     resp = post_json('styles.getStyles')
-    assert resp.is_json
-    assert resp.json['data'] == styles
+    assert is_json(resp)
+    expected = [[u'%s' % x, u'%s' % STYLES[x]] for x in STYLES]
+    assert json(resp)['data'] == expected

tox.ini

@@ -1,11 +1,13 @@
 [tox]
 minversion = 1.6
-envlist = pep8
+envlist = pep8, py27
 skipsdist = True
 
 [testenv]
 setenv = VIRTUAL_ENV={envdir}
-deps = -r{toxinidir}/test-requirements.txt
+deps = -r{toxinidir}/requirements.txt
+       -r{toxinidir}/test-requirements.txt
+commands = nosetests
 
 [testenv:pep8]
 commands = flake8