1 files changed, 90 insertions, 0 deletions
diff --git a/spec/frontend/invite_members/components/group_select_spec.js b/spec/frontend/invite_members/components/group_select_spec.js
new file mode 100644
index 00000000000..2a6985de136
--- /dev/null
+++ b/spec/frontend/invite_members/components/group_select_spec.js
@@ -0,0 +1,90 @@
+import { GlDropdown, GlDropdownItem, GlSearchBoxByType } from '@gitlab/ui';
+import { mount } from '@vue/test-utils';
+import waitForPromises from 'helpers/wait_for_promises';
+import Api from '~/api';
+import GroupSelect from '~/invite_members/components/group_select.vue';
+
+const createComponent = () => {
+  return mount(GroupSelect, {});
+};
+
+const group1 = { id: 1, full_name: 'Group One' };
+const group2 = { id: 2, full_name: 'Group Two' };
+const allGroups = [group1, group2];
+
+describe('GroupSelect', () => {
+  let wrapper;
+
+  beforeEach(() => {
+    jest.spyOn(Api, 'groups').mockResolvedValue(allGroups);
+
+    wrapper = createComponent();
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+    wrapper = null;
+  });
+
+  const findSearchBoxByType = () => wrapper.findComponent(GlSearchBoxByType);
+  const findDropdown = () => wrapper.findComponent(GlDropdown);
+  const findDropdownToggle = () => findDropdown().find('button[aria-haspopup="true"]');
+  const findDropdownItemByText = (text) =>
+    wrapper
+      .findAllComponents(GlDropdownItem)
+      .wrappers.find((dropdownItemWrapper) => dropdownItemWrapper.text() === text);
+
+  it('renders GlSearchBoxByType with default attributes', () => {
+    expect(findSearchBoxByType().exists()).toBe(true);
+    expect(findSearchBoxByType().vm.$attrs).toMatchObject({
+      placeholder: 'Search groups',
+    });
+  });
+
+  describe('when user types in the search input', () => {
+    let resolveApiRequest;
+
+    beforeEach(() => {
+      jest.spyOn(Api, 'groups').mockImplementation(
+        () =>
+          new Promise((resolve) => {
+            resolveApiRequest = resolve;
+          }),
+      );
+
+      findSearchBoxByType().vm.$emit('input', group1.name);
+    });
+
+    it('calls the API', () => {
+      resolveApiRequest({ data: allGroups });
+
+      expect(Api.groups).toHaveBeenCalledWith(group1.name, {
+        active: true,
+        exclude_internal: true,
+      });
+    });
+
+    it('displays loading icon while waiting for API call to resolve', async () => {
+      expect(findSearchBoxByType().props('isLoading')).toBe(true);
+
+      resolveApiRequest({ data: allGroups });
+      await waitForPromises();
+
+      expect(findSearchBoxByType().props('isLoading')).toBe(false);
+    });
+  });
+
+  describe('when group is selected from the dropdown', () => {
+    beforeEach(() => {
+      findDropdownItemByText(group1.full_name).vm.$emit('click');
+    });
+
+    it('emits `input` event used by `v-model`', () => {
+      expect(wrapper.emitted('input')[0][0].id).toEqual(group1.id);
+    });
+
+    it('sets dropdown toggle text to selected item', () => {
+      expect(findDropdownToggle().text()).toBe(group1.full_name);
+    });
+  });
+});