change code to not remove quest_chans that not includes in plotting data

sohstationviewer/view/util/functions.py

@@ -359,9 +359,10 @@ def replace_actual_quest_chans(
     for qc in quest_chans:
         actual_quest_chans = [c for c in list(actual_chans)
                               if qc[:-1] == c[:-1]]
-        quest_idx = chan_order.index(qc)
-        chan_order.remove(qc)
-        chan_order[quest_idx:quest_idx] = sorted(actual_quest_chans)
+        if actual_quest_chans:
+            quest_idx = chan_order.index(qc)
+            chan_order.remove(qc)
+            chan_order[quest_idx:quest_idx] = sorted(actual_quest_chans)
     return chan_order
 
 

tests/test_view/test_util_functions.py

@@ -520,10 +520,18 @@ class RemoveNotFoundChansClass(TestCase):
 
 
 class ReplaceActualQuestChans(TestCase):
-    def test_replace_actual_quest_chans(self):
+    def test_quest_chans_in_actual_chans(self):
         chan_order = ['A', 'B', 'C?', 'D']
         actual_chans = ['C1', 'C3', 'C2', 'D', 'E', 'F']
         expected_new_chan_order = ['A', 'B', 'C1', 'C2', 'C3', 'D']
 
         ret = replace_actual_quest_chans(chan_order, actual_chans)
         self.assertListEqual(ret, expected_new_chan_order)
+
+    def test_quest_chans_not_in_actual_chans(self):
+        chan_order = ['A?', 'B', 'C', 'D']
+        actual_chans = ['C', 'D', 'E', 'F']
+        expected_new_chan_order = ['A?', 'B', 'C', 'D']
+
+        ret = replace_actual_quest_chans(chan_order, actual_chans)
+        self.assertListEqual(ret, expected_new_chan_order)