Agrendalath/bb 2599 low priority tests (#214)

* [TNL-7269] WIP low priority tests

* [TNL-7269] Add low priority tests

* [TNL-7269] Fix failing EnrollmentAlert tests

* [TNL-7269] Address review comments

* Fixing test errors on rebase with master.

Co-authored-by: Agrendalath <piotr@surowiec.it>

src/courseware/course/sequence/content-lock/ContentLock.test.jsx

@@ -0,0 +1,43 @@
+import React from 'react';
+import { history } from '@edx/frontend-platform';
+import {
+  render, screen, fireEvent, initializeMockApp,
+} from '../../../../setupTest';
+import ContentLock from './ContentLock';
+
+describe('Content Lock', () => {
+  const mockData = {
+    courseId: 'test-course-id',
+    prereqSectionName: 'test-prerequisite-section-name',
+    prereqId: 'test-prerequisite-id',
+    sequenceTitle: 'test-sequence-title',
+  };
+
+  beforeAll(async () => {
+    // We need to mock AuthService to implicitly use `getAuthenticatedUser` within `AppContext.Provider`.
+    await initializeMockApp();
+  });
+
+  it('displays sequence title along with lock icon', () => {
+    const { container } = render(<ContentLock {...mockData} />);
+
+    const lockIcon = container.querySelector('svg');
+    expect(lockIcon).toHaveClass('fa-lock');
+    expect(lockIcon.parentElement).toHaveTextContent(mockData.sequenceTitle);
+  });
+
+  it('displays prerequisite name', () => {
+    const prereqText = `You must complete the prerequisite: '${mockData.prereqSectionName}' to access this content.`;
+    render(<ContentLock {...mockData} />);
+
+    expect(screen.getByText(prereqText)).toBeInTheDocument();
+  });
+
+  it('handles click', () => {
+    history.push = jest.fn();
+    render(<ContentLock {...mockData} />);
+    fireEvent.click(screen.getByRole('button'));
+
+    expect(history.push).toHaveBeenCalledWith(`/course/${mockData.courseId}/${mockData.prereqId}`);
+  });
+});