diff --git a/sanity_check_tool/tests/data/example_run_data.json b/sanity_check_tool/tests/data/example_run_data.json
new file mode 100644
index 0000000..0ee4226
--- /dev/null
+++ b/sanity_check_tool/tests/data/example_run_data.json
@@ -0,0 +1,48 @@
+{
+  "runs": [
+    {
+      "id": 1,
+      "corr_id": "abc123",
+      "event": "write_pre",
+      "timestamp": 1000,
+      "clocksource": "tsc",
+      "metadata": {
+        "value": 42
+      }
+    },
+    {
+      "id": 2,
+      "corr_id": "abc123",
+      "event": "write_post",
+      "timestamp": 1010,
+      "clocksource": "tsc",
+      "metadata": {
+        "value": 42
+      }
+    },
+    {
+      "id": 3,
+      "corr_id": "xyz456",
+      "event": "write_pre",
+      "timestamp": 2000,
+      "clocksource": "tsc",
+      "metadata": {
+        "value": null
+      }
+    },
+    {
+      "id": 4,
+      "corr_id": "", 
+      "event": "write_post",
+      "timestamp": 2010,
+      "clocksource": "switch",
+      "metadata": {}
+    }
+  ],
+  "sanity_checks": [
+    "missing_pairs",
+    "broken_ids",
+    "empty_fields",
+    "clock_switch_count"
+  ]
+}
\ No newline at end of file