diff --git a/pymatchseries/config_tools.py b/pymatchseries/config_tools.py
index 9a0b3f0..896bab3 100644
--- a/pymatchseries/config_tools.py
+++ b/pymatchseries/config_tools.py
@@ -180,5 +180,5 @@ def create_config_file(filename, *args, **kwargs):
     saveNamedDeformedDMXTemplatesAsDMX : bool, optional
     saveRefAndTempl : bool, optional
     """
-    get_configuration(*args, **kwargs)
+    config_dict = get_configuration(*args, **kwargs)
     config_dict.save(filename)
diff --git a/pymatchseries/tests/test_config_tools.py b/pymatchseries/tests/test_config_tools.py
new file mode 100644
index 0000000..832d9e8
--- /dev/null
+++ b/pymatchseries/tests/test_config_tools.py
@@ -0,0 +1,48 @@
+from pymatchseries import config_tools as ctools
+import os
+import pytest
+
+
+def test_load_config():
+    ctools.load_config()
+
+
+def test_write_config():
+    dummy = ctools.load_config()
+    ctools.write_config(dummy, "test_config.par")
+    assert os.path.isfile("test_config.par")
+    os.remove("test_config.par")
+
+
+def test_get_configuration():
+    c = ctools.get_configuration("test", "test", 2,
+                             1, [1, 2, 3], 
+                             preSmoothSigma=1)
+    assert isinstance(c, ctools.config_dict)
+
+
+def test_create_config_file():
+    ctools.create_config_file("test.par", "test", "test", 2,
+                             1, [1, 2, 3], 
+                             preSmoothSigma=1)
+    assert os.path.isfile("test.par")
+    os.remove("test.par")
+
+
+class TestConfigDict():
+
+    def test_init(self):
+        testdict = {"foo": "bar", "batman": 1}
+        c = ctools.config_dict(testdict)
+        assert isinstance(c, ctools.config_dict)
+
+    def test_get(self):
+        testdict = {"foo": "bar", "batman": 1}
+        c = ctools.config_dict(testdict)
+        assert c.foo == "bar"
+
+    def test_set(self):
+        testdict = {"foo": "bar", "batman": 1}
+        c = ctools.config_dict(testdict)
+        c.foo == "foo"
+        assert c.foo == "bar"