diff --git a/data_analysis/tests/data/sample_reference.json b/data_analysis/tests/data/sample_reference.json
new file mode 100644
index 0000000..1c730e5
--- /dev/null
+++ b/data_analysis/tests/data/sample_reference.json
@@ -0,0 +1,7 @@
+[
+  {"intensity": 0.05, "background_noise": 0.05},
+  {"intensity": 0.06, "background_noise": 0.05},
+  {"intensity": 0.05, "background_noise": 0.05},
+  {"intensity": 0.055, "background_noise": 0.05},
+  {"intensity": 0.045, "background_noise": 0.05}
+]
\ No newline at end of file