Tests `v24_features.py` and `v26_features.py` fail on Ubuntu 16.04

[LeonidVas]

I tried to run the tests v24_features.py and v26_features.py, but my attempt failed.

└──╼ ./test/v24_features.py 
[+] Post/Put body
[+] Post body - error
[+] Body sould not pass
[+] Headers out
[+] Unescape issue
Traceback (most recent call last):
  File "/home/leonid/work/mail/nginx_upstream_module/test/http_utils.py", line 223, in get
    res = urllib2.urlopen(req)
  File "/usr/lib/python2.7/urllib2.py", line 154, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python2.7/urllib2.py", line 429, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 447, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 1235, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib/python2.7/urllib2.py", line 1202, in do_open
    h.request(req.get_method(), req.get_selector(), req.data, headers)
  File "/usr/lib/python2.7/httplib.py", line 1103, in request
    self._send_request(method, url, body, headers)
  File "/usr/lib/python2.7/httplib.py", line 1137, in _send_request
    self.putrequest(method, url, **skips)
  File "/usr/lib/python2.7/httplib.py", line 968, in putrequest
    % (url, match.group()))
InvalidURL: URL can't contain control characters. '/unescape?a=some string with spaces' (found at least ' ')

Traceback (most recent call last):
  File "./test/v24_features.py", line 46, in <module>
    result = get_success(preset_method_location, None, {})
  File "/home/leonid/work/mail/nginx_upstream_module/test/http_utils.py", line 259, in get_success
    assert(code == 200), 'expected 200'
AssertionError: expected 200

  ┌─[✗]─[leonid@vasya-L460]─[~/work/mail/nginx_upstream_module]
└──╼ ./test/v26_features.py 
[+] basic insert
Traceback (most recent call last):
  File "/home/leonid/work/mail/nginx_upstream_module/test/http_utils.py", line 223, in get
    res = urllib2.urlopen(req)
  File "/usr/lib/python2.7/urllib2.py", line 154, in urlopen
    return opener.open(url, data, timeout)
  File "/usr/lib/python2.7/urllib2.py", line 429, in open
    response = self._open(req, data)
  File "/usr/lib/python2.7/urllib2.py", line 447, in _open
    '_open', req)
  File "/usr/lib/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 1235, in http_open
    return self.do_open(httplib.HTTPConnection, req)
  File "/usr/lib/python2.7/urllib2.py", line 1202, in do_open
    h.request(req.get_method(), req.get_selector(), req.data, headers)
  File "/usr/lib/python2.7/httplib.py", line 1103, in request
    self._send_request(method, url, body, headers)
  File "/usr/lib/python2.7/httplib.py", line 1137, in _send_request
    self.putrequest(method, url, **skips)
  File "/usr/lib/python2.7/httplib.py", line 968, in putrequest
    % (url, match.group()))
InvalidURL: URL can't contain control characters. '/insert?index=1&string=some big string&float=2.1&double=3.1&bool=True&int=-1000&' (found at least ' ')

Traceback (most recent call last):
  File "./test/v26_features.py", line 34, in <module>
    result = get_success(BASE_URL + '/insert', insert_1, None)
  File "/home/leonid/work/mail/nginx_upstream_module/test/http_utils.py", line 259, in get_success
    assert(code == 200), 'expected 200'
AssertionError: expected 200

[Totktonada]

I guess that URL encoding was missed for those test cases either from scratch or after some change in the testing utilites.

I guess we can just fix it without attempts to deeply investigate where it becomes broken and why (that would be hard due to the messy git history; excuse me, Vasiliy). Whitespaces obviously should be URL encoded.

However I would try to revert changes that were introduced together with the failing test cases and so verify whether they test the relevant bugfixes / features after the fix of the testing problem.

The patch that works for me (to be verified as described above and to be splitted to atomic commits):

diff --git a/test/http_utils.py b/test/http_utils.py
index 64f71c0..fce3f8e 100644
--- a/test/http_utils.py
+++ b/test/http_utils.py
@@ -202,7 +202,7 @@ def patch(url, data):
 def arr_of_dicts_to_string(arr_of_dicts):
     res = ""
     for k in arr_of_dicts:
-        res = res + k.keys()[0] + "=" + str(k.values()[0]) + "&"
+        res = res + urllib.urlencode(k) + '&'
     return res

diff --git a/test/v24_features.py b/test/v24_features.py
index 4e9355b..597d3e5 100755
--- a/test/v24_features.py
+++ b/test/v24_features.py
@@ -41,10 +41,10 @@ post_success(preset_method_location, {"body": True}, {})
 # ============
 #
 print('[+] Unescape issue')
-arg_a = 'some string with spaces'
-preset_method_location = BASE_URL + '/unescape?a=' + arg_a
-result = get_success(preset_method_location, None, {})
-assert(result[0]['args']['a'] == arg_a), 'does not expected (args.a)'
+args = {'a': 'some string with spaces'}
+preset_method_location = BASE_URL + '/unescape'
+result = get_success(preset_method_location, args, {})
+assert(result[0]['args']['a'] == args['a']), 'does not expected (args["a"])'

 # ============
 #
diff --git a/test/v26_features.py b/test/v26_features.py
index cb07ea6..5be3531 100755
--- a/test/v26_features.py
+++ b/test/v26_features.py
@@ -325,7 +325,7 @@ update = [
     {'float': '-,3,2.1'},
     {'double': '=,4,4.1'},
     {'bool': '=,5,false'},
-    {'int': '%2B,6,1001'}
+    {'int': '+,6,1001'}
 ]

 expected = [