diff --git a/wls-module/src/utils/tests/__init__.py b/wls-module/src/utils/tests/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/wls-module/src/utils/tests/test_files.py b/wls-module/src/utils/tests/test_files.py
new file mode 100644
index 0000000..ad65815
--- /dev/null
+++ b/wls-module/src/utils/tests/test_files.py
@@ -0,0 +1,33 @@
+import json
+import unittest
+import os
+
+from .. import files
+
+
+class TestFiles(unittest.TestCase):
+
+    def test_load_config_file(self):
+        config = files.load_config_file("test_files/test_config.json")
+        self.assertEqual(config["general"]["prng_seed"], 1234)
+        self.assertEqual(config["kurtosis"]["enclave_name"], "test")
+
+    def test_config_file_error(self):
+        with self.assertRaises(FileNotFoundError):
+            files.load_config_file("test_files/test_config_error.json")
+
+    def test_load_topology(self):
+        test_topology = files.load_topology("test_files/test_topology.json")
+        self.assertEqual(test_topology["containers"]["containers_0"][0], "node_0")
+        self.assertEqual(test_topology["nodes"]["node_0"]["image"], "nim-waku")
+
+    def test_load_topology_error(self):
+        with self.assertRaises(FileNotFoundError):
+            files.load_topology("test_files/test_topology_error.json")
+
+    def test_save_messages_to_json(self):
+        msgs_dict = {"test": "test"}
+        files.save_messages_to_json(msgs_dict)
+        with open("messages.json", "r") as f:
+            self.assertEqual(json.load(f), msgs_dict)
+        os.remove("messages.json")
diff --git a/wls-module/src/utils/tests/test_files/test_config.json b/wls-module/src/utils/tests/test_files/test_config.json
new file mode 100644
index 0000000..e13fe42
--- /dev/null
+++ b/wls-module/src/utils/tests/test_files/test_config.json
@@ -0,0 +1,8 @@
+{
+  "general":{
+    "prng_seed" : 1234
+  },
+  "kurtosis": {
+    "enclave_name": "test"
+  }
+}
diff --git a/wls-module/src/utils/tests/test_files/test_topology.json b/wls-module/src/utils/tests/test_files/test_topology.json
new file mode 100644
index 0000000..54176ab
--- /dev/null
+++ b/wls-module/src/utils/tests/test_files/test_topology.json
@@ -0,0 +1,18 @@
+{
+  "containers": {
+    "containers_0": [
+      "node_0"
+    ]
+  },
+  "nodes": {
+    "node_0": {
+      "static_nodes": [],
+      "subnetwork": "subnetwork_0",
+      "image": "nim-waku",
+      "node_config": "node_0.toml",
+      "node_log": "node_0.log",
+      "port_shift": 0,
+      "container_id": "containers_0"
+    }
+  }
+}
\ No newline at end of file