1 files changed, 3 insertions, 1 deletions

diff --git a/setup.cfg b/setup.cfg
index f3dd4b61..c88d0160 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,7 @@
 [tool:pytest]
-addopts = -q -n3
+addopts = -q -n3 --strict
+markers =
+    expensive: too slow to run during "make smoke"
 
 [pep8]
 # E265 block comment should start with '# '