1 files changed, 66 insertions, 0 deletions
diff --git a/spec/frontend/groups/members/index_spec.js b/spec/frontend/groups/members/index_spec.js
new file mode 100644
index 00000000000..70fce0d60fb
--- /dev/null
+++ b/spec/frontend/groups/members/index_spec.js
@@ -0,0 +1,66 @@
+import { createWrapper } from '@vue/test-utils';
+import initGroupMembersApp from '~/groups/members';
+import GroupMembersApp from '~/groups/members/components/app.vue';
+import { membersJsonString, membersParsed } from './mock_data';
+
+describe('initGroupMembersApp', () => {
+  let el;
+  let vm;
+  let wrapper;
+
+  const setup = () => {
+    vm = initGroupMembersApp(el);
+    wrapper = createWrapper(vm);
+  };
+
+  beforeEach(() => {
+    el = document.createElement('div');
+    el.setAttribute('data-members', membersJsonString);
+    el.setAttribute('data-group-id', '234');
+
+    window.gon = { current_user_id: 123 };
+
+    document.body.appendChild(el);
+  });
+
+  afterEach(() => {
+    document.body.innerHTML = '';
+    el = null;
+
+    wrapper.destroy();
+    wrapper = null;
+  });
+
+  it('renders `GroupMembersApp`', () => {
+    setup();
+
+    expect(wrapper.find(GroupMembersApp).exists()).toBe(true);
+  });
+
+  it('sets `currentUserId` in Vuex store', () => {
+    setup();
+
+    expect(vm.$store.state.currentUserId).toBe(123);
+  });
+
+  describe('when `gon.current_user_id` is not set (user is not logged in)', () => {
+    it('sets `currentUserId` as `null` in Vuex store', () => {
+      window.gon = {};
+      setup();
+
+      expect(vm.$store.state.currentUserId).toBeNull();
+    });
+  });
+
+  it('parses and sets `data-group-id` as `sourceId` in Vuex store', () => {
+    setup();
+
+    expect(vm.$store.state.sourceId).toBe(234);
+  });
+
+  it('parses and sets `members` in Vuex store', () => {
+    setup();
+
+    expect(vm.$store.state.members).toEqual(membersParsed);
+  });
+});