diff --git a/.gitignore b/.gitignore
index 955d066..448c6c3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,4 @@ Cargo.lock
 src/python/qubed/_version.py
 *.ipynb
 cmake_build/
+tests/data/
diff --git a/tests/example_qubes/extremes_dt.json b/tests/example_qubes/extremes_dt.json
new file mode 100644
index 0000000..d2f22c4
--- /dev/null
+++ b/tests/example_qubes/extremes_dt.json
@@ -0,0 +1 @@
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