diff --git a/artifact.1/tests/data/sample_metrics.json b/artifact.1/tests/data/sample_metrics.json
new file mode 100644
index 0000000..ef964fa
--- /dev/null
+++ b/artifact.1/tests/data/sample_metrics.json
@@ -0,0 +1,22 @@
+[
+  {
+    "band_width": 120.5,
+    "retry_tail_p99": 3.7,
+    "band_center": 60.2
+  },
+  {
+    "band_width": 118.9,
+    "retry_tail_p99": 4.1,
+    "band_center": 59.8
+  },
+  {
+    "band_width": 121.3,
+    "retry_tail_p99": 3.5,
+    "band_center": 60.4
+  },
+  {
+    "band_width": 123.0,
+    "retry_tail_p99": 3.9,
+    "band_center": 61.0
+  }
+]
\ No newline at end of file