diff --git a/generate_report/tests/data/sample_latency_results.json b/generate_report/tests/data/sample_latency_results.json
new file mode 100644
index 0000000..595096e
--- /dev/null
+++ b/generate_report/tests/data/sample_latency_results.json
@@ -0,0 +1,56 @@
+[
+  {
+    "batch_id": "batch_001",
+    "metric": "p50",
+    "value_ms": 123.4,
+    "timestamp": "2024-05-01T10:15:30Z"
+  },
+  {
+    "batch_id": "batch_001",
+    "metric": "p95",
+    "value_ms": 198.6,
+    "timestamp": "2024-05-01T10:15:31Z"
+  },
+  {
+    "batch_id": "batch_001",
+    "metric": "p99",
+    "value_ms": 243.9,
+    "timestamp": "2024-05-01T10:15:32Z"
+  },
+  {
+    "batch_id": "batch_002",
+    "metric": "p50",
+    "value_ms": 112.7,
+    "timestamp": "2024-05-02T08:47:15Z"
+  },
+  {
+    "batch_id": "batch_002",
+    "metric": "p95",
+    "value_ms": 176.2,
+    "timestamp": "2024-05-02T08:47:16Z"
+  },
+  {
+    "batch_id": "batch_002",
+    "metric": "p99",
+    "value_ms": 201.4,
+    "timestamp": "2024-05-02T08:47:17Z"
+  },
+  {
+    "batch_id": "batch_003",
+    "metric": "p50",
+    "value_ms": 130.1,
+    "timestamp": "2024-05-03T12:03:45Z"
+  },
+  {
+    "batch_id": "batch_003",
+    "metric": "p95",
+    "value_ms": 209.8,
+    "timestamp": "2024-05-03T12:03:46Z"
+  },
+  {
+    "batch_id": "batch_003",
+    "metric": "p99",
+    "value_ms": 267.5,
+    "timestamp": "2024-05-03T12:03:47Z"
+  }
+]
\ No newline at end of file