1 files changed, 14 insertions, 0 deletions
diff --git a/tests/test_extensions/test_ext_duration.py b/tests/test_extensions/test_ext_duration.py
new file mode 100644
index 0000000..4fa4dfc
--- /dev/null
+++ b/tests/test_extensions/test_ext_duration.py
@@ -0,0 +1,14 @@
+"""Test sphinx.ext.duration extension."""
+
+import re
+
+import pytest
+
+
+@pytest.mark.sphinx('dummy', testroot='basic',
+                    confoverrides={'extensions': ['sphinx.ext.duration']})
+def test_githubpages(app, status, warning):
+    app.build()
+
+    assert 'slowest reading durations' in status.getvalue()
+    assert re.search('\\d+\\.\\d{3} index\n', status.getvalue())