feat: Add campaign (#2177)

app/javascript/dashboard/store/modules/specs/campaigns/mutations.spec.js

@@ -0,0 +1,21 @@
+import types from '../../../mutation-types';
+import { mutations } from '../../campaigns';
+import campaigns from './fixtures';
+
+describe('#mutations', () => {
+  describe('#SET_CAMPAIGNS', () => {
+    it('set campaigns records', () => {
+      const state = { records: [] };
+      mutations[types.SET_CAMPAIGNS](state, campaigns);
+      expect(state.records).toEqual(campaigns);
+    });
+  });
+
+  describe('#ADD_CAMPAIGN', () => {
+    it('push newly created campaigns to the store', () => {
+      const state = { records: [campaigns[0]] };
+      mutations[types.ADD_CAMPAIGN](state, campaigns[1]);
+      expect(state.records).toEqual([campaigns[0], campaigns[1]]);
+    });
+  });
+});