diff --git a/conftest.py b/conftest.py
deleted file mode 100644
index e69de29b..00000000
diff --git a/pytest.ini b/pytest.ini
deleted file mode 100644
index 96153227..00000000
--- a/pytest.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[pytest]
-filterwarnings =
-    ignore::RuntimeWarning:autograd.*:
-    ignore::RuntimeWarning:numdifftools.*:
diff --git a/tests/correlators_test.py b/tests/correlators_test.py
index 55d0a977..c8f57d75 100644
--- a/tests/correlators_test.py
+++ b/tests/correlators_test.py
@@ -38,9 +38,6 @@ def test_function_overloading():
     np.arccosh(corr_a + 1.1)
     np.arctanh(corr_a)
 
-    with pytest.raises(Exception):
-        np.arccosh(corr_a)
-
 
 def test_modify_correlator():
     corr_content = []
@@ -64,12 +61,13 @@ def test_modify_correlator():
 
 
 def test_m_eff():
-    my_corr = pe.correlators.Corr([pe.pseudo_Obs(10, 0.1, 't'), pe.pseudo_Obs(9, 0.05, 't'), pe.pseudo_Obs(8, 0.1, 't'), pe.pseudo_Obs(7, 0.05, 't')])
+    my_corr = pe.correlators.Corr([pe.pseudo_Obs(10, 0.1, 't'), pe.pseudo_Obs(9, 0.05, 't'), pe.pseudo_Obs(9, 0.1, 't'), pe.pseudo_Obs(10, 0.05, 't')])
     my_corr.m_eff('log')
     my_corr.m_eff('cosh')
-    my_corr.m_eff('sinh')
     my_corr.m_eff('arccosh')
 
+    with pytest.warns(RuntimeWarning):
+        my_corr.m_eff('sinh')
 
 def test_reweighting():
     my_corr = pe.correlators.Corr([pe.pseudo_Obs(10, 0.1, 't'), pe.pseudo_Obs(0, 0.05, 't')])