Merge branch '8-muliple-named-configs' into 'master'

Resolve "verschiedene Konfigurationen innerhalb einer Anwednung ermöglichen"

Closes #8

See merge request !4

config_provider.py

 class ConfigProvider:
 
   _instance = None
+  _configs = {}
 
   @classmethod
-  def getInstance(cls):
-    return ConfigProvider._instance
+  def getInstance(cls, name = None):
+    if name is None:
+      return ConfigProvider._instance
+    else:
+      return ConfigProvider._configs.get(name)
 
-  def __init__(self, load_function):
+  def __init__(self, load_function, name = None):
     self._conf_dict = load_function['function'](
-      *load_function.get('args'), **load_function.get('kwargs'))
+      *load_function.get('args', []), **load_function.get('kwargs',{}))
     self._load_function = load_function
-    ConfigProvider._instance = self
+    if name is None:
+      ConfigProvider._instance = self
+    else:
+      ConfigProvider._configs[name] = self
 
   @property
   def dict(self):

test/test_config_provider.py

@@ -47,4 +47,14 @@ class TestConfigProvider(unittest.TestCase):
         old_dict, self.config.dict, 'old_dict musst not equal self.config.dict')
 
   def test_get_instance(self):
+    self.assertEqual(config_provider.ConfigProvider.getInstance(), self.config)
+
+  def test_multiple_instances(self):
+    def get_constant_dict():
+      return {'foo': 'bar'}
+    config_provider.ConfigProvider(
+      load_function = {'function': get_constant_dict}, name = 'constant')
+    self.assertNotEqual(
+      config_provider.ConfigProvider.getInstance(),
+      config_provider.ConfigProvider.getInstance(name = 'constant'))
     self.assertEqual(config_provider.ConfigProvider.getInstance(), self.config)
\ No newline at end of file

version.py

-__version__ = '1.0.0'
+__version__ = '1.1.0'
\ No newline at end of file