diff --git a/data_analysis/tests/data/sample_run.csv b/data_analysis/tests/data/sample_run.csv
new file mode 100644
index 0000000..3b1ccab
--- /dev/null
+++ b/data_analysis/tests/data/sample_run.csv
@@ -0,0 +1,7 @@
+context,pinned_status,delta_t,warn
+near_expiry,unpinned,-0.05,True
+near_expiry,unpinned,0.01,False
+near_expiry,pinned,-0.02,False
+fresh,unpinned,-0.01,True
+fresh,unpinned,0.03,False
+fresh,pinned,0.02,False
\ No newline at end of file