1 files changed, 26 insertions, 0 deletions
diff --git a/config/mozunit/mozunit/pytest_plugin.py b/config/mozunit/mozunit/pytest_plugin.py
new file mode 100644
index 0000000000..e05fc579e4
--- /dev/null
+++ b/config/mozunit/mozunit/pytest_plugin.py
@@ -0,0 +1,26 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+import pytest
+
+
+def pytest_addoption(parser):
+    group = parser.getgroup("mozunit")
+    group.addoption(
+        "--run-slow", action="store_true", default=False, help="run slow tests"
+    )
+
+
+def pytest_configure(config):
+    config.addinivalue_line("markers", "slow: mark test as slow to run")
+
+
+def pytest_collection_modifyitems(config, items):
+    if config.getoption("--run-slow"):
+        # --run-slow given in cli: do not skip slow tests
+        return
+    skip_slow = pytest.mark.skip(reason="need --run-slow option to run")
+    for item in items:
+        if "slow" in item.keywords:
+            item.add_marker(skip_slow)