fix #94 by using pytest-cov instead of plain coverage

1 files changed, 2 insertions, 3 deletions

diff --git a/tox.ini b/tox.ini
index 33d665a..e480942 100644
--- a/tox.ini
+++ b/tox.ini
@@ -8,9 +8,8 @@ envlist =
 passenv = LANG
 deps =
     pytest>=3
-    coverage
-commands = coverage run -p -m pytest {posargs}
-
+    pytest-cov
+commands = pytest --cov=markupsafe {posargs}
 [testenv:docs-html]
 deps =
     sphinx