diff --git a/unknowns_analysis/tests/data/test_unknowns_metrics.csv b/unknowns_analysis/tests/data/test_unknowns_metrics.csv
new file mode 100644
index 0000000..3f74883
--- /dev/null
+++ b/unknowns_analysis/tests/data/test_unknowns_metrics.csv
@@ -0,0 +1,11 @@
+window_id,total_unknowns,warn_increases,warn_stable
+1,5,1,0
+2,3,0,1
+3,0,0,1
+4,8,2,0
+5,2,0,1
+6,7,2,0
+7,1,0,1
+8,4,1,0
+9,0,0,1
+10,6,2,0
\ No newline at end of file