1 files changed, 16 insertions, 0 deletions
diff --git a/spec/frontend/clusters/services/application_state_machine_spec.js b/spec/frontend/clusters/services/application_state_machine_spec.js
index 8632c5c4e26..b27cd2c80fd 100644
--- a/spec/frontend/clusters/services/application_state_machine_spec.js
+++ b/spec/frontend/clusters/services/application_state_machine_spec.js
@@ -161,4 +161,20 @@ describe('applicationStateMachine', () => {
       });
     });
   });
+
+  describe('current state is undefined', () => {
+    it('returns the current state without having any effects', () => {
+      const currentAppState = {};
+      expect(transitionApplicationState(currentAppState, INSTALLABLE)).toEqual(currentAppState);
+    });
+  });
+
+  describe('with event is undefined', () => {
+    it('returns the current state without having any effects', () => {
+      const currentAppState = {
+        status: NO_STATUS,
+      };
+      expect(transitionApplicationState(currentAppState, undefined)).toEqual(currentAppState);
+    });
+  });
 });