1 files changed, 15 insertions, 0 deletions
diff --git a/conftest.py b/conftest.py
new file mode 100644
index 0000000..e48a5f0
--- /dev/null
+++ b/conftest.py
@@ -0,0 +1,15 @@
+import pytest
+def pytest_addoption(parser):
+    parser.addoption("-E", action="store", metavar="NAME",
+        help="only run tests matching the environment NAME.")
+
+def pytest_configure(config):
+    # register an additional marker
+    config.addinivalue_line("markers",
+        "env(name): mark test to run only on named environment")
+
+def pytest_runtest_setup(item):
+    envnames = [mark.args[0] for mark in item.iter_markers(name='env')]
+    if envnames:
+        if item.config.getoption("-E") not in envnames:
+            pytest.skip("test requires env in %r" % envnames)