[tests] Add Python3 test run

Add testrun to also verify Python3 functionality.

+ Immediately fix a Python3 incompatibility.

see #23

bumblebee/config.py

@@ -8,7 +8,7 @@ class Config(object):
         self._args = parser.parse_args(args)
 
     def modules(self):
-        return map(lambda x: { "name": x, "module": x }, self._args.modules)
+        return list(map(lambda x: { "name": x, "module": x }, self._args.modules))
 
     def _create_parser(self):
         parser = argparse.ArgumentParser(description="display system data in the i3bar")

runtests.sh

@@ -1,3 +1,5 @@
 #!/bin/sh
 
-nosetests --rednose -v tests/
+test=$(which nosetests)
+python2 $test --rednose -v tests/
+python3 $test --rednose -v tests/

tests/test_config.py

@@ -13,6 +13,6 @@ class TestConfig(unittest.TestCase):
     def test_load_simple_modules(self):
         cfg = Config([ "-m" ] + self.someSimpleModules)
         self.assertEquals(cfg.modules(), 
-            map(lambda x: { "name": x, "module": x }, self.someSimpleModules))
+            list(map(lambda x: { "name": x, "module": x }, self.someSimpleModules)))
 
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