diff --git a/temperature_logger/tests/data/sample_temperature_log.json b/temperature_logger/tests/data/sample_temperature_log.json
new file mode 100644
index 0000000..ab757f7
--- /dev/null
+++ b/temperature_logger/tests/data/sample_temperature_log.json
@@ -0,0 +1,57 @@
+[
+  {
+    "timestamp": "2024-06-10T10:00:00Z",
+    "temperature": 24.5,
+    "location": "Lab-1"
+  },
+  {
+    "timestamp": "2024-06-10T10:00:01Z",
+    "temperature": 24.6,
+    "location": "Lab-1"
+  },
+  {
+    "timestamp": "2024-06-10T10:00:02Z",
+    "temperature": 24.6,
+    "location": "Lab-1"
+  },
+  {
+    "timestamp": "2024-06-10T10:00:03Z",
+    "temperature": 24.7,
+    "location": "Lab-1"
+  },
+  {
+    "timestamp": "2024-06-10T10:00:04Z",
+    "temperature": 24.8,
+    "location": "Lab-1"
+  },
+  {
+    "timestamp": "2024-06-10T10:00:05Z",
+    "temperature": 24.8,
+    "location": "Lab-2"
+  },
+  {
+    "timestamp": "2024-06-10T10:00:06Z",
+    "temperature": 24.9,
+    "location": "Lab-2"
+  },
+  {
+    "timestamp": "2024-06-10T10:00:07Z",
+    "temperature": 25.0,
+    "location": "Lab-2"
+  },
+  {
+    "timestamp": "2024-06-10T10:00:08Z",
+    "temperature": 25.0,
+    "location": "Outdoor-Station"
+  },
+  {
+    "timestamp": "2024-06-10T10:00:09Z",
+    "temperature": 25.1,
+    "location": "Outdoor-Station"
+  },
+  {
+    "timestamp": "2024-06-10T10:00:10Z",
+    "temperature": null,
+    "location": "Sensor-Error"
+  }
+]
\ No newline at end of file