1 files changed, 116 insertions, 0 deletions
diff --git a/spec/frontend/sidebar/reviewer_title_spec.js b/spec/frontend/sidebar/reviewer_title_spec.js
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index 00000000000..eae266688d5
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+++ b/spec/frontend/sidebar/reviewer_title_spec.js
@@ -0,0 +1,116 @@
+import { shallowMount } from '@vue/test-utils';
+import { GlLoadingIcon } from '@gitlab/ui';
+import { mockTracking, triggerEvent } from 'helpers/tracking_helper';
+import Component from '~/sidebar/components/reviewers/reviewer_title.vue';
+
+describe('ReviewerTitle component', () => {
+  let wrapper;
+
+  const createComponent = props => {
+    return shallowMount(Component, {
+      propsData: {
+        numberOfReviewers: 0,
+        editable: false,
+        ...props,
+      },
+    });
+  };
+
+  afterEach(() => {
+    wrapper.destroy();
+    wrapper = null;
+  });
+
+  describe('reviewer title', () => {
+    it('renders reviewer', () => {
+      wrapper = createComponent({
+        numberOfReviewers: 1,
+        editable: false,
+      });
+
+      expect(wrapper.vm.$el.innerText.trim()).toEqual('Reviewer');
+    });
+
+    it('renders 2 reviewers', () => {
+      wrapper = createComponent({
+        numberOfReviewers: 2,
+        editable: false,
+      });
+
+      expect(wrapper.vm.$el.innerText.trim()).toEqual('2 Reviewers');
+    });
+  });
+
+  describe('gutter toggle', () => {
+    it('does not show toggle by default', () => {
+      wrapper = createComponent({
+        numberOfReviewers: 2,
+        editable: false,
+      });
+
+      expect(wrapper.vm.$el.querySelector('.gutter-toggle')).toBeNull();
+    });
+
+    it('shows toggle when showToggle is true', () => {
+      wrapper = createComponent({
+        numberOfReviewers: 2,
+        editable: false,
+        showToggle: true,
+      });
+
+      expect(wrapper.vm.$el.querySelector('.gutter-toggle')).toEqual(expect.any(Object));
+    });
+  });
+
+  it('does not render spinner by default', () => {
+    wrapper = createComponent({
+      numberOfReviewers: 0,
+      editable: false,
+    });
+
+    expect(wrapper.find(GlLoadingIcon).exists()).toBeFalsy();
+  });
+
+  it('renders spinner when loading', () => {
+    wrapper = createComponent({
+      loading: true,
+      numberOfReviewers: 0,
+      editable: false,
+    });
+
+    expect(wrapper.find(GlLoadingIcon).exists()).toBeTruthy();
+  });
+
+  it('does not render edit link when not editable', () => {
+    wrapper = createComponent({
+      numberOfReviewers: 0,
+      editable: false,
+    });
+
+    expect(wrapper.vm.$el.querySelector('.edit-link')).toBeNull();
+  });
+
+  it('renders edit link when editable', () => {
+    wrapper = createComponent({
+      numberOfReviewers: 0,
+      editable: true,
+    });
+
+    expect(wrapper.vm.$el.querySelector('.edit-link')).not.toBeNull();
+  });
+
+  it('tracks the event when edit is clicked', () => {
+    wrapper = createComponent({
+      numberOfReviewers: 0,
+      editable: true,
+    });
+
+    const spy = mockTracking('_category_', wrapper.element, jest.spyOn);
+    triggerEvent('.js-sidebar-dropdown-toggle');
+
+    expect(spy).toHaveBeenCalledWith('_category_', 'click_edit_button', {
+      label: 'right_sidebar',
+      property: 'reviewer',
+    });
+  });
+});