Remove the unittest requirement to avoid the mess on py2.6 and below.

This will hopefully get 2.5-3.3 working on travis-ci, as nose should be able to
discover everything just fine.

pyrasite/tests/test_code_injection.py

@@ -22,10 +22,10 @@ import subprocess
 import pyrasite
 
 from pyrasite.tests.utils import generate_program, run_program, stop_program, \
-                                 interpreters, unittest
+                                 interpreters
 
 
-class TestCodeInjection(unittest.TestCase):
+class TestCodeInjection(object):
 
     def assert_output_contains(self, stdout, stderr, text):
         assert text in str(stdout), \
@@ -81,5 +81,3 @@ class TestCodeInjection(unittest.TestCase):
         finally:
             os.unlink(program)
 
-if __name__ == '__main__':
-    unittest.main()

pyrasite/tests/test_ipc.py

@@ -19,10 +19,10 @@ import os
 import sys
 
 import pyrasite
-from pyrasite.tests.utils import run_program, generate_program, stop_program, unittest
+from pyrasite.tests.utils import run_program, generate_program, stop_program
 
 
-class TestIPCContextManager(unittest.TestCase):
+class TestIPCContextManager(object):
 
     def setUp(self):
         self.prog = generate_program()
@@ -46,7 +46,7 @@ class TestIPCContextManager(unittest.TestCase):
         pyrasite.tests.context_manager_case.context_manager_business(self)
 
 
-class TestIPC(unittest.TestCase):
+class TestIPC(object):
 
     def setUp(self):
         self.prog = generate_program()
@@ -92,5 +92,3 @@ class TestIPC(unittest.TestCase):
         assert repr(self.ipc)
 
 
-if __name__ == '__main__':
-    unittest.main()

pyrasite/tests/utils.py

@@ -22,11 +22,6 @@ import time
 import textwrap
 import tempfile
 import subprocess
-import unittest
-
-if sys.version_info[0] == 2:
-    if sys.version_info[1] < 7:
-        import unittest2 as unittest
 
 
 def generate_program(threads=1):

setup.py

@@ -26,9 +26,6 @@ elif sys.version_info[0] == 2:
         requirements.append('argparse')
 
 tests_require = ['nose']
-if sys.version_info[0] == 2:
-    if sys.version_info[1] < 7:
-        tests_require.append('unittest2')
 
 class build_py(_build_py):
   def run(self):