diff --git a/tests/unit_test.py b/tests/unit_test.py
index 2decade20..bb14d2b20 100644
--- a/tests/unit_test.py
+++ b/tests/unit_test.py
@@ -67,6 +67,7 @@
 from tests.unit_test_support import (
     createClusterWithConfig,
     createClusterConfig,
+    createClusterWrongType,
 )
 
 import codeflare_sdk.utils.kube_api_helpers
@@ -268,6 +269,11 @@ def test_config_creation():
     assert config.appwrapper == True
 
 
+def test_config_creation_wrong_type():
+    with pytest.raises(TypeError):
+        config = createClusterWrongType()
+
+
 def test_cluster_creation(mocker):
     # Create AppWrapper containing a Ray Cluster with no local queue specified
     mocker.patch("kubernetes.client.ApisApi.get_api_versions")
diff --git a/tests/unit_test_support.py b/tests/unit_test_support.py
index 36c7d8710..25e206c52 100644
--- a/tests/unit_test_support.py
+++ b/tests/unit_test_support.py
@@ -31,3 +31,23 @@ def createClusterWithConfig(mocker):
     )
     cluster = Cluster(createClusterConfig())
     return cluster
+
+
+def createClusterWrongType():
+    config = ClusterConfiguration(
+        name="unit-test-cluster",
+        namespace="ns",
+        num_workers=2,
+        worker_cpu_requests=[],
+        worker_cpu_limits=4,
+        worker_memory_requests=5,
+        worker_memory_limits=6,
+        worker_extended_resource_requests={"nvidia.com/gpu": 7},
+        appwrapper=True,
+        machine_types=[True, False],
+        image_pull_secrets=["unit-test-pull-secret"],
+        image="quay.io/rhoai/ray:2.23.0-py39-cu121",
+        write_to_file=True,
+        labels={1: 1},
+    )
+    return config