diff --git a/tests/test_eks.py b/tests/test_eks.py
index 5f7b1450..3abb7c21 100644
--- a/tests/test_eks.py
+++ b/tests/test_eks.py
@@ -31,9 +31,10 @@ def test_list_clusters(eks_patch, monkeypatch):
     assert all_clusters == {'region1': ['hastags']}
 
 
-class MockedEKSClient():
+class MockedEKSClient:
     def __init__(self):
         self.clusters_list = []
+        self.deleted_clusters = []
 
     def list_clusters(self):
         return self.clusters_list
@@ -49,6 +50,15 @@ def describe_cluster(self, name=None):
             return {'cluster': {'tags': {'pcw_ignore': '1'}}}
         return None
 
+    def delete_cluster(self, *args, **kwargs):
+        self.deleted_clusters.append(kwargs['name'])
+
+    def list_nodegroups(self, *args, **kwargs):
+        return {'nodegroups': []}
+
+    def list_services(self, *args, **kwargs):
+        return {'services': []}
+
 
 @pytest.fixture
 def eks_patch(monkeypatch):
@@ -96,6 +106,15 @@ def test_create_credentials_file(eks_patch, monkeypatch):
         eks_patch.create_credentials_file()
 
 
+def test_delete_all_clusters(eks_patch, monkeypatch):
+    mocked_eks = MockedEKSClient()
+    mocked_eks.clusters_list = {'clusters': ['cluster1']}
+    monkeypatch.setattr(EKS, 'eks_client', lambda self, region: mocked_eks)
+
+    eks_patch.delete_all_clusters()
+    assert mocked_eks.deleted_clusters == ['cluster1']
+
+
 def test_cleanup_k8s_jobs(eks_patch, monkeypatch):
     mocked_eks = MockedEKSClient()
     mocked_eks.clusters_list = {'clusters': ['cluster1']}