diff --git a/binarycpython/tests/test_c_bindings.py b/binarycpython/tests/test_c_bindings.py
index b2d97ee48e53d91fb9a816be4ac094aaa676ed83..1f59f3a70d60799e41660694e2ced19d4cfd8cef 100644
--- a/binarycpython/tests/test_c_bindings.py
+++ b/binarycpython/tests/test_c_bindings.py
@@ -64,6 +64,11 @@ ensemble_filters_off {8} ensemble_filter_{9} 1 probability 0.1"
     return argstring
 
 
+def is_capsule(o):
+    t = type(o)
+    return t.__module__ == 'builtins' and t.__name__ == 'PyCapsule'
+
+
 #######################################################################################################################################################
 ### General run_system test
 #######################################################################################################################################################
@@ -78,6 +83,7 @@ class test_run_system(unittest.TestCase):
         """
         General test if run_system works
         """
+        print(self.id())
 
         m1 = 15.0  # Msun
         m2 = 14.0  # Msun
@@ -109,6 +115,7 @@ class test_run_system(unittest.TestCase):
 ### memaddr test
 #######################################################################################################################################################
 
+# TODO: Make some assertion tests in c 
 
 class test_return_store_memaddr(unittest.TestCase):
     """
@@ -119,15 +126,17 @@ class test_return_store_memaddr(unittest.TestCase):
         """
         Test to see if the memory adress is returned properly
         """
-
+        print(self.id())
         output = _binary_c_bindings.return_store_memaddr()
 
         # print("function: test_return_store")
         # print("store memory adress:")
         # print(textwrap.indent(str(output), "\t"))
 
-        self.assertTrue(isinstance(output, int))
-        self.assertNotEqual(output, -1, "memory adress not created properly")
+        self.assertTrue(is_capsule(output))
+        # self.assertNotEqual(
+        #     output, 0, "memory adress seems not to have a correct value"
+        # )
 
         # TODO: check if we can built in some signal for how successful this was.
         _ = _binary_c_bindings.free_store_memaddr(output)
@@ -153,18 +162,20 @@ class TestEnsemble(unittest.TestCase):
         """
         Test case to check if the memory adress has been created succesfully
         """
+        print(self.id())
 
         output = _binary_c_bindings.return_persistent_data_memaddr()
 
-        self.assertIsInstance(output, int, msg="memory adress has to be an integer")
-        self.assertNotEqual(
-            output, 0, "memory adress seems not to have a correct value"
-        )
+        self.assertTrue(is_capsule(output), msg="Object must be an integer")
+        # self.assertNotEqual(
+        #     output, 0, "memory adress seems not to have a correct value"
+        # )
 
     def test_minimal_ensemble_output(self):
         """
         test_case to check if the ensemble output is correctly output
         """
+        print(self.id())
 
         m1 = 2  # Msun
         m2 = 0.1  # Msun
@@ -190,6 +201,7 @@ class TestEnsemble(unittest.TestCase):
         """
         test_case to check if the ensemble output is correctly output, by using defer command and freeing+outputting
         """
+        print(self.id())
 
         m1 = 2  # Msun
         m2 = 0.1  # Msun
@@ -227,6 +239,7 @@ class TestEnsemble(unittest.TestCase):
         """
         test_case to check if adding the ensemble outputs works. Many things should be caught by tests in the merge_dict test, but still good to test a bit here
         """
+        print(self.id())
 
         m1 = 2  # Msun
         m2 = 0.1  # Msun
@@ -287,6 +300,7 @@ class TestEnsemble(unittest.TestCase):
         """
         test to run 2 systems without deferring, and merging them manually. Then run 2 systems with defer and then output them.
         """
+        print(self.id())
 
         m1 = 2  # Msun
         m2 = 0.1  # Msun
@@ -373,6 +387,7 @@ class TestEnsemble(unittest.TestCase):
         """
         Test for merging with an empty dict
         """
+        print(self.id())
 
         m1 = 2  # Msun
         m2 = 0.1  # Msun
@@ -398,6 +413,7 @@ class TestEnsemble(unittest.TestCase):
         Function to just output the whole ensemble
         TODO: put this one back
         """
+        print(self.id())
 
         m1 = 2  # Msun
         m2 = 0.1  # Msun
diff --git a/binarycpython/tests/test_grid.py b/binarycpython/tests/test_grid.py
index a6503d71c483d6b1a052138f62cc3c9191843fb1..3eed2895cd321de603c20a25d598f182f9aa03ce 100644
--- a/binarycpython/tests/test_grid.py
+++ b/binarycpython/tests/test_grid.py
@@ -465,7 +465,7 @@ class test_grid_evolve(unittest.TestCase):
 
         test_pop_evolve_1_thread = Population()
         test_pop_evolve_1_thread.set(
-            amt_cores=1, verbosity=1, M_2=1, orbital_period=100000
+            amt_cores=1, verbosity=0, M_2=1, orbital_period=100000
         )
 
         resolution = {"M_1": 10}