Switch to pytest

This is just a basic switch. No actual test code has been modified.
Besides avoiding the now-dead nose project, the major benefit of this
is the TestServer class not being reported as a test for each test
module.

Author: matthias-bach-by

.travis.yml

@@ -7,4 +7,4 @@ install:
   - "pip install -r requirements.txt"
   - "pip freeze"
 script: 
-  - nosetests
+  - pytest

README.md

@@ -11,7 +11,7 @@ How to run the tests
 
 Run the tests
 
-    nosetests
+    pytest
 
 Travis runs the tests without LDAP support. If you want to enable them (as we do
 internally to check against our own LDAP server), replace the configuration in

requirements_dev.txt

@@ -1,4 +1,4 @@
 pip>7.0
 pip-tools>=1.6
-nose
+pytest
 sphinx

setup.py

@@ -16,13 +16,9 @@
         'devpi-plumber',
         'devpi-ldap'
     ],
-    setup_requires=[
-        'nose'
-    ],
     tests_require=[
-        'nose'
+        'pytest'
     ],
-    test_suite='nose.collector',
     classifiers=[
         'Development Status :: 4 - Beta',
         'Environment :: Console',