setup.cfg: Make all xfail strictbschubert/strict-xfail

This means that a test that was said as failing that pass will trigger
an error in the test suite.

This ensures we keep our xfail markers up to date.

1 files changed, 2 insertions, 0 deletions

diff --git a/setup.cfg b/setup.cfg
index a8919fdca..08e19a763 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -14,6 +14,8 @@ test=pytest
 addopts = --verbose --basetemp ./tmp --durations=20
 norecursedirs = tests/integration/project integration-cache tmp __pycache__ .eggs
 python_files = tests/*/*.py
+xfail_strict = True
+
 env =
     D:BST_TEST_SUITE=True