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diff --git a/spec/frontend/issuable_show/components/issuable_title_spec.js b/spec/frontend/issuable_show/components/issuable_title_spec.js
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+++ b/spec/frontend/issuable_show/components/issuable_title_spec.js
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+import { shallowMount } from '@vue/test-utils';
+import { GlIcon, GlButton, GlIntersectionObserver } from '@gitlab/ui';
+import { createMockDirective, getBinding } from 'helpers/vue_mock_directive';
+
+import IssuableTitle from '~/issuable_show/components/issuable_title.vue';
+
+import { mockIssuableShowProps, mockIssuable } from '../mock_data';
+
+const issuableTitleProps = {
+  issuable: mockIssuable,
+  ...mockIssuableShowProps,
+};
+
+const createComponent = (propsData = issuableTitleProps) =>
+  shallowMount(IssuableTitle, {
+    propsData,
+    stubs: {
+      transition: true,
+    },
+    slots: {
+      'status-badge': 'Open',
+    },
+    directives: {
+      GlTooltip: createMockDirective(),
+    },
+  });
+
+describe('IssuableTitle', () => {
+  let wrapper;
+
+  beforeEach(() => {
+    wrapper = createComponent();
+  });
+
+  afterEach(() => {
+    wrapper.destroy();
+  });
+
+  describe('methods', () => {
+    describe('handleTitleAppear', () => {
+      it('sets value of `stickyTitleVisible` prop to false', () => {
+        wrapper.find(GlIntersectionObserver).vm.$emit('appear');
+
+        expect(wrapper.vm.stickyTitleVisible).toBe(false);
+      });
+    });
+
+    describe('handleTitleDisappear', () => {
+      it('sets value of `stickyTitleVisible` prop to true', () => {
+        wrapper.find(GlIntersectionObserver).vm.$emit('disappear');
+
+        expect(wrapper.vm.stickyTitleVisible).toBe(true);
+      });
+    });
+  });
+
+  describe('template', () => {
+    it('renders issuable title', async () => {
+      const wrapperWithTitle = createComponent({
+        ...mockIssuableShowProps,
+        issuable: {
+          ...mockIssuable,
+          titleHtml: '<b>Sample</b> title',
+        },
+      });
+
+      await wrapperWithTitle.vm.$nextTick();
+      const titleEl = wrapperWithTitle.find('h2');
+
+      expect(titleEl.exists()).toBe(true);
+      expect(titleEl.html()).toBe('<h2 dir="auto" class="title qa-title"><b>Sample</b> title</h2>');
+
+      wrapperWithTitle.destroy();
+    });
+
+    it('renders edit button', () => {
+      const editButtonEl = wrapper.find(GlButton);
+      const tooltip = getBinding(editButtonEl.element, 'gl-tooltip');
+
+      expect(editButtonEl.exists()).toBe(true);
+      expect(editButtonEl.props('icon')).toBe('pencil');
+      expect(editButtonEl.attributes('title')).toBe('Edit title and description');
+      expect(tooltip).toBeDefined();
+    });
+
+    it('renders sticky header when `stickyTitleVisible` prop is true', async () => {
+      wrapper.setData({
+        stickyTitleVisible: true,
+      });
+
+      await wrapper.vm.$nextTick();
+      const stickyHeaderEl = wrapper.find('[data-testid="header"]');
+
+      expect(stickyHeaderEl.exists()).toBe(true);
+      expect(stickyHeaderEl.find(GlIcon).props('name')).toBe(issuableTitleProps.statusIcon);
+      expect(stickyHeaderEl.text()).toContain('Open');
+      expect(stickyHeaderEl.text()).toContain(issuableTitleProps.issuable.title);
+    });
+  });
+});