[tests] readme instructions and configured in setup.py (splintered-re…

…ality#67)

setup.py

@@ -55,7 +55,7 @@
         "visualisation, logging and various tutorials."
     ),
     license='BSD',
-    # test_suite = 'nose.collector',
+    test_suite='tests',
     # tests_require=['nose', 'pytest', 'flake8', 'yanc', 'nose-htmloutput']
     # tests_require=['pytest'],
     entry_points={

tests/README.md

@@ -1,21 +1,15 @@
 # Tests
 
-Make sure you source the virutal environment in all cases to run
-tests in this way (if you are using a colcon environment, the
-same commands will eventually hold once ros2's rosdep becomes
-functional).
+Make sure you source the environment to run tests.
 
 ## Executing Tests
 
-Always run tests from the root directory, since that is where
-it will pick up the nosetests configuration in `setup.cfg`.
-
 ```
-# All Tests via SetupTools (indirectly)
-$ python3 setup.py nosetests
-# All Tests via Nosetest (directly)
-$ nosetests ./tests
-# A single test
-$ nosetests tests/test_oneshot.py
+# run all tests will full stdout
+$ python3 -m unittest discover
+# run a single test
+$ cd tests && python3 ./test_exchange.py
+# step back and run from setup.py (what colcon does)
+$ python3 setup.py test
 ```