Update testing configuration:

(1) Add py35 job to Travis.
(2) To address issue #57: run tests that connect to Mojang's auth server exactly once, during the py35 job.
(3) Measure coverage exactly once, during the py35 job; always submit the result to coveralls.
(4) Fix miscellaneous errors in generate_travis_yml.py.

.travis.yml

@@ -1,11 +1,11 @@
 language: python
-python: 2.7
+python: 3.5
 env:
   - TOX_ENV=py27
   - TOX_ENV=py33
   - TOX_ENV=py34
+  - TOX_ENV=py35
   - TOX_ENV=pypy
-  - TOX_ENV=cover
   - TOX_ENV=flake8
   - TOX_ENV=pylint-errors
   - TOX_ENV=pylint-full
@@ -15,7 +15,7 @@ install:
   - pip install python-coveralls
 script:
   - tox -e $TOX_ENV
-after_success:
-  - if [ "$TOX_ENV" = "py27" ]; then tox -e coveralls; fi
+after_script:
+  - if [ "$TOX_ENV" = "py35" ]; then tox -e coveralls; fi
 notifications:
   email: false

bin/generate_travis_yml.py

@@ -1,12 +1,16 @@
+#!/usr/bin/env python
 # flake8: noqa
 
+import sys
 import os
-os.chdir("..")
+import os.path
+from tox.config import parseconfig
 
-from tox._config import parseconfig
+# This file is in pyCraft/bin/; it needs to execute in pyCraft/.
+os.chdir(os.path.join(os.path.dirname(__file__), ".."))
 
 print("language: python")
-print("python: 2.7")
+print("python: 3.5")
 print("env:")
 for env in parseconfig(None, 'tox').envlist:
     print("  - TOX_ENV=%s" % env)
@@ -15,7 +19,7 @@ print("  - pip install tox")
 print("  - pip install python-coveralls")
 print("script:")
 print("  - tox -e $TOX_ENV")
-print("after_success:")
-print('  - if [ "$TOX_ENV" = "py27 ]; then tox -e coveralls; fi')
+print("after_script:")
+print('  - if [ "$TOX_ENV" = "py35" ]; then tox -e coveralls; fi')
 print("notifications:")
 print("  email: false")

tests/test_authentication.py

@@ -7,6 +7,7 @@ from minecraft.exceptions import YggdrasilError
 import requests
 import json
 import unittest
+import os
 from .compat import mock
 
 FAKE_DATA = {
@@ -56,6 +57,14 @@ def should_skip_cred_test():
     return False
 
 
+def should_run_internet_tests():
+    """
+    Returns `True` if tests involving access to Internet resources
+    should *not* be skipped. Otherwise returns `False`.
+    """
+    return os.environ.get('PYCRAFT_RUN_INTERNET_TESTS')
+
+
 class InitProfile(unittest.TestCase):
     def test_init_no_values(self):
         p = Profile()
@@ -194,6 +203,8 @@ class AuthenticateAuthenticationToken(unittest.TestCase):
         self.assertTrue(resp)
 
 
+@unittest.skipUnless(should_run_internet_tests(),
+                     "Tests involving Internet access are disabled.")
 class MakeRequest(unittest.TestCase):
     def test_make_request_http_method(self):
         res = _make_request(AUTHSERVER, "authenticate", {"Billy": "Bob"})

tox.ini

@@ -4,7 +4,7 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27, py33, py34, py35, py36, pypy, cover, flake8, pylint-errors, pylint-full, verify-manifest
+envlist = py27, py33, py34, py35, pypy, flake8, pylint-errors, pylint-full, verify-manifest
 
 [testenv]
 commands = nosetests
@@ -15,20 +15,7 @@ deps =
     cryptography
     future
 
-[testenv:py27]
-deps =
-    {[testenv]deps}
-    mock
-
-[testenv:pypy]
-deps =
-    {[testenv]deps}
-    mock
-    
 [testenv:cover]
-basepython = python3.5
-commands =
-    nosetests --with-xunit --with-xcoverage --cover-package=minecraft --nocapture --cover-erase --cover-inclusive --cover-tests --cover-branches --cover-min-percentage=60
 deps =
     {[testenv]deps}
     coverage
@@ -36,14 +23,29 @@ deps =
 
 [testenv:coveralls]
 passenv = TRAVIS TRAVIS_JOB_ID TRAVIS_BRANCH
-basepython = {[testenv:cover]basepython}
 commands =
-    {[testenv:cover]commands}
     coveralls
 deps =
-    {[testenv:cover]deps}
     coveralls
 
+[testenv:py27]
+deps =
+    {[testenv]deps}
+    mock
+
+[testenv:py35]
+setenv =
+    PYCRAFT_RUN_INTERNET_TESTS=1
+commands =
+    nosetests --with-xunit --with-xcoverage --cover-package=minecraft --cover-erase --cover-inclusive --cover-tests --cover-branches --cover-min-percentage=60
+deps =
+    {[testenv:cover]deps}
+
+[testenv:pypy]
+deps =
+    {[testenv]deps}
+    mock
+    
 [testenv:flake8]
 basepython = python3.5
 commands =
@@ -82,4 +84,4 @@ deps =
     check-manifest
 commands =
     check-manifest
-    
+