Add another type of bad magic to test

ceball · ceball · commit 6d6c2e9e42d1 · 2020-06-11T14:31:31.000+01:00
diff --git a/tests/test_magics.py b/tests/test_magics.py
@@ -11,6 +11,7 @@
 
 @pytest.mark.parametrize("magic, expected_passes", [
     (r"%dirs", [True]),
+    (r"%precision bad", [False]),
     (r"%this_magic_does_not_exist", [False])
 ])
 def test_magics(testdir, magic, expected_passes):
