enable test for SignalProcessing

test/test_SignalProcessing.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-# Time-stamp: <2020-11-24 17:52:34 Tao Liu>
+# Time-stamp: <2024-05-14 11:52:44 Tao Liu>
 
 """Module Description: Test functions for Signal.pyx
 
@@ -46,7 +46,7 @@ def setUp(self):
         self.smoothed162 = -2.98155597e-18 # the value is based on python3.7+numpy1.17.4; from smoothing func with np.convolve
 
     # this test uses only numpy functions. we aim to capture strange behavior under specific py+numpy
-    @pytest.mark.skip( reason="it fails under some combinations of py+np with unknown reason." )
+    #@pytest.mark.skip( reason="it fails under some combinations of py+np with unknown reason." )
     def test_implement_smooth_here ( self ):
         signal = self.signal
         window_size = self.windowsize