fixed failing test

pycqed/tests/test_linear_filter_distortions.py

@@ -1,13 +1,16 @@
 import unittest
 import numpy as np
 import pycqed.instrument_drivers.meta_instrument.lfilt_kernel_object as lko
-
+import pycqed.instrument_drivers.virtual_instruments.virtual_AWG8 as v8
 
 class Test_LinDistortionKernelObject(unittest.TestCase):
 
     @classmethod
     def setUpClass(self):
         self.k0 = lko.LinDistortionKernel('k0')
+        self.AWG = v8.VirtualAWG8('DummyAWG8')
+        self.k0.instr_AWG(self.AWG.name)
+        self.k0.cfg_awg_channel(1)
 
     def setUp(self):
         self.k0.cfg_sampling_rate(2.4e9)
@@ -16,6 +19,7 @@ def setUp(self):
         self.k0.filter_model_01({'model': 'exponential',
                                  'params': {'amp': 4.2035373039155806, 'tau': 5.9134605614601521e-06}})
 
+
     def test_print_overview(self):
         # only test that it doesn't raise errors
         self.k0.print_overview()
@@ -46,3 +50,6 @@ def test_reset_kernels(self):
     @classmethod
     def tearDownClass(self):
         self.k0.close()
+        self.AWG.close()
+
+