1 files changed, 16 insertions, 0 deletions
diff --git a/spec/frontend/monitoring/store/embed_group/mutations_spec.js b/spec/frontend/monitoring/store/embed_group/mutations_spec.js
new file mode 100644
index 00000000000..a1d04e23e41
--- /dev/null
+++ b/spec/frontend/monitoring/store/embed_group/mutations_spec.js
@@ -0,0 +1,16 @@
+import state from '~/monitoring/stores/embed_group/state';
+import mutations from '~/monitoring/stores/embed_group/mutations';
+import * as types from '~/monitoring/stores/embed_group/mutation_types';
+import { mockNamespace } from '../../mock_data';
+
+describe('Embed group mutations', () => {
+  describe('ADD_MODULE', () => {
+    it('should add a module', () => {
+      const stateCopy = state();
+
+      mutations[types.ADD_MODULE](stateCopy, mockNamespace);
+
+      expect(stateCopy.modules).toEqual([mockNamespace]);
+    });
+  });
+});