tests: tests cleaned up, name duplicate in obs_test corrected

tests/benchmark_test.py

@@ -1,7 +1,6 @@
 import numpy as np
 import pyerrors as pe
 import pytest
-import time
 
 np.random.seed(0)
 

tests/obs_test.py

@@ -1,7 +1,5 @@
 import autograd.numpy as np
 import os
-import random
-import string
 import copy
 import pyerrors as pe
 import pytest
@@ -142,7 +140,7 @@ def test_overloading_vectorization():
     assert [o.value for o in b / a] == [o.value for o in [b / p for p in a]]
 
 
-def test_gamma_method():
+def test_gamma_method_standard_data():
     for data in [np.tile([1, -1], 1000),
                  np.random.rand(100001),
                  np.zeros(1195),
@@ -285,7 +283,7 @@ def test_covariance_symmetry():
     assert np.abs(cov_ab) < test_obs1.dvalue * test_obs2.dvalue * (1 + 10 * np.finfo(np.float64).eps)
 
 
-def test_gamma_method():
+def test_gamma_method_uncorrelated():
     # Construct pseudo Obs with random shape
     value = np.random.normal(5, 10)
     dvalue = np.abs(np.random.normal(0, 1))

tests/sfcf_in_test.py

@@ -1,14 +1,14 @@
-import os,sys,inspect
+import os
+import sys
+import inspect
+import pyerrors as pe
+import pyerrors.input.sfcf as sfin
+import shutil
+
 current_dir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
 parent_dir = os.path.dirname(current_dir)
 sys.path.insert(0, parent_dir)
 
-import pyerrors as pe
-import pyerrors.input.openQCD as qcdin
-import pyerrors.input.sfcf as sfin
-import shutil
-
-from time import sleep
 
 def build_test_environment(env_type, cfgs, reps):
     if env_type == "o":
@@ -26,7 +26,6 @@ def build_test_environment(env_type, cfgs, reps):
 
 
 
-
 def clean_test_environment(env_type, cfgs, reps):
     if env_type == "o":
         for i in range(1,reps):