Add test stub for trim_downsample_WFChan

tests/test_model/test_handling_data.py

@@ -37,6 +37,7 @@ from sohstationviewer.model.handling_data import (
     trim_downsample_SOHChan
 )
 from sohstationviewer.model.reftek.from_rt2ms.core import Reftek130
+from sohstationviewer.conf import constants as consts
 
 TEST_DATA_DIR = Path(__file__).parent.parent.joinpath('test_data')
 
@@ -971,3 +972,11 @@ class TestTrimDownsampleSohChan(TestCase):
     def test_reftek(self):
         self.fail()
 
+
+class TestTrimDownsampleWfChan(TestCase):
+    def setUp(self) -> None:
+        pass
+
+    @expectedFailure
+    def test(self):
+        raise NotImplementedError(type(self))