diff --git a/artifact_1_bandwidth_analysis/tests/data/sample_affinity_off.json b/artifact_1_bandwidth_analysis/tests/data/sample_affinity_off.json
new file mode 100644
index 0000000..592d0c5
--- /dev/null
+++ b/artifact_1_bandwidth_analysis/tests/data/sample_affinity_off.json
@@ -0,0 +1,12 @@
+[
+  {"worker_id": "worker_A", "timestamp": 0.3},
+  {"worker_id": "worker_B", "timestamp": 1.1},
+  {"worker_id": "worker_C", "timestamp": 2.4},
+  {"worker_id": "worker_D", "timestamp": 2.9},
+  {"worker_id": "worker_E", "timestamp": 4.0},
+  {"worker_id": "worker_F", "timestamp": 4.6},
+  {"worker_id": "worker_G", "timestamp": 5.2},
+  {"worker_id": "worker_H", "timestamp": 6.1},
+  {"worker_id": "worker_I", "timestamp": 7.5},
+  {"worker_id": "worker_J", "timestamp": 8.0}
+]
\ No newline at end of file