Ignore coverage on some unreachable lines in tests

Author: dwhswenson

paths_cli/tests/test_utils.py

@@ -10,7 +10,7 @@ def test_len(self):
     def test_empty(self):
         ordered = OrderedSet()
         assert len(ordered) == 0
-        for _ in ordered:
+        for _ in ordered:  # -no-cov-
             raise RuntimeError("This should not happen")
 
     def test_order(self):

paths_cli/tests/wizard/test_volumes.py

@@ -54,7 +54,7 @@ def test_volume_intro(as_state, has_state):
         assert "You'll need to define" in intro
     elif not as_state:
         assert intro == _VOL_DESC
-    else:
+    else:  # -no-cov-
         raise RuntimeError("WTF?")
 
 def _binary_volume_test(volume_setup, func):