1 files changed, 15 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index fb24e02..63fe6f8 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist=py3,mypy
+envlist=py3,mypy,black,black-run
 
 [testenv]
 deps =
@@ -19,3 +19,17 @@ commands=
 deps =
   mypy >= 0.761
 commands = mypy --ignore-missing-imports logilab
+
+[testenv:black]
+basepython = python3
+skip_install = true
+deps =
+  black >= 19.10b0
+commands = black --check .
+
+[testenv:black-run]
+basepython = python3
+skip_install = true
+deps =
+  black >= 19.10b0
+commands = black .