Refactor config-tests

by just testing the return-value of tsstats.config.load instead of
writing and reading a config-file from disk as there's absolutely no
need to test that as it's just basic ConfigParser-functionality

tsstats/tests/test_config.py

@@ -1,47 +1,20 @@
-try:
-    from configparser import ConfigParser
-except ImportError:
-    from ConfigParser import ConfigParser
-
-from os import remove
-from os.path import abspath, exists
-
 import pytest
 
 from tsstats.config import load
 
-configpath = abspath('tsstats/tests/res/test.cfg')
-
-
-def create_config(values, key='General'):
-    config = ConfigParser()
-    config.add_section('General')
-    for option, value in values.items():
-        config.set('General', option, value)
-    with open(configpath, 'w') as configfile:
-        config.write(configfile)
-
 
 @pytest.fixture
-def config(request):
-    def clean():
-        if exists(configpath):
-            remove(configpath)
-    request.addfinalizer(clean)
+def config():
+    return load()
 
 
 def test_config(config):
-    create_config({
-        'idmap': 'tsstats/tests/res/id_map.json',
-        'log': 'tsstats/tests/res/test.log',
-        'output': 'output.html',
-        'debug': 'true',
-        'onlinedc': 'false'
-    })
-    configuration = load(configpath)
-    assert configuration.get('General', 'idmap') ==\
+    assert not config.getboolean('General', 'debug')
+    assert config.getboolean('General', 'onlinedc')
+    config.set('General', 'idmap', 'tsstats/tests/res/id_map.json')
+    assert config.get('General', 'idmap') ==\
         'tsstats/tests/res/id_map.json'
-    assert configuration.get('General', 'log') == 'tsstats/tests/res/test.log'
-    assert configuration.get('General', 'output') == 'output.html'
-    assert configuration.getboolean('General', 'debug') is True
-    assert configuration.getboolean('General', 'onlinedc') is False
+    config.set('General', 'log', 'tsstats/tests/res/test.log')
+    assert config.get('General', 'log') == 'tsstats/tests/res/test.log'
+    config.set('General', 'output', 'output.html')
+    assert config.get('General', 'output') == 'output.html'