diff --git a/gps_sync/tests/data/wifi_sample.json b/gps_sync/tests/data/wifi_sample.json
new file mode 100644
index 0000000..b147962
--- /dev/null
+++ b/gps_sync/tests/data/wifi_sample.json
@@ -0,0 +1,22 @@
+[
+  {
+    "timestamp": "2024-06-01T12:00:00Z",
+    "signal_strength": -45.0
+  },
+  {
+    "timestamp": "2024-06-01T12:00:01Z",
+    "signal_strength": -50.5
+  },
+  {
+    "timestamp": "2024-06-01T12:00:02Z",
+    "signal_strength": -47.2
+  },
+  {
+    "timestamp": "2024-06-01T12:00:03Z",
+    "signal_strength": -49.8
+  },
+  {
+    "timestamp": "2024-06-01T12:00:04Z",
+    "signal_strength": -52.1
+  }
+]
\ No newline at end of file