diff --git a/tests/test_latlon.py b/tests/test_latlon.py
index b5147505..b47b6794 100644
--- a/tests/test_latlon.py
+++ b/tests/test_latlon.py
@@ -22,7 +22,7 @@ def fix_dim(self):
         return 2
 
 
-class TestCondition(unittest.TestCase):
+class TestLatLon(unittest.TestCase):
     def setUp(self):
         self.cmod = gs.Gaussian(
             latlon=True, var=2, len_scale=777, rescale=gs.EARTH_RADIUS
diff --git a/tests/test_normalize.py b/tests/test_normalizer.py
similarity index 100%
rename from tests/test_normalize.py
rename to tests/test_normalizer.py
diff --git a/tests/test_transform.py b/tests/test_transform.py
index eb3cf13e..ca196f66 100644
--- a/tests/test_transform.py
+++ b/tests/test_transform.py
@@ -7,7 +7,7 @@
 import gstools as gs
 
 
-class TestSRF(unittest.TestCase):
+class TestTransform(unittest.TestCase):
     def setUp(self):
         self.cov_model = gs.Gaussian(dim=2, var=1.5, len_scale=4.0)
         self.mean = 0.3
diff --git a/tests/test_variogram_structured.py b/tests/test_variogram_structured.py
index 7aa18122..e1ad1908 100644
--- a/tests/test_variogram_structured.py
+++ b/tests/test_variogram_structured.py
@@ -10,7 +10,7 @@
 import gstools as gs
 
 
-class TestVariogramstructured(unittest.TestCase):
+class TestVariogramStructured(unittest.TestCase):
     def setUp(self):
         pass