test: course url when public path is set

The commit add two tests for the following componenets:

  1. BackToInstructor
  2. BulkEmailPendingTasksAlert

  Which tests course url when public path is set to something
  other than '/' and also when it is '/'.

src/components/bulk-email-tool/bulk-email-task-manager/test/BulkEmailPendingTasksAlert.test.jsx

@@ -0,0 +1,33 @@
+import React from 'react';
+
+import BulkEmailPendingTasksAlert from '../BulkEmailPendingTasksAlert';
+import {
+  initializeMockApp, render, screen,
+} from '../../../../setupTest';
+
+describe('Testing BulkEmailPendingTasksAlert Component', () => {
+  beforeAll(async () => {
+    await initializeMockApp();
+  });
+
+  test('Render without Public path', async () => {
+    render(<BulkEmailPendingTasksAlert courseId="test-course-id" />);
+
+    const linkEl = await screen.findByText('Course Info');
+    expect(linkEl.href).toEqual('http://localhost:18000/courses/test-course-id/instructor#view-course-info');
+  });
+
+  test('Render with Public path', async () => {
+    Object.defineProperty(window, 'location', {
+      get() {
+        return { pathname: '/communications/courses/test-course-id/bulk-email' };
+      },
+    });
+
+    render(<BulkEmailPendingTasksAlert courseId="test-course-id" />);
+
+    const linkEl = await screen.findByText('Course Info');
+    expect(linkEl.href).toEqual('http://localhost:18000/courses/test-course-id/instructor#view-course-info');
+    expect(window.location.pathname).toEqual('/communications/courses/test-course-id/bulk-email');
+  });
+});

src/components/navigation-tabs/BackToInstructor.test.jsx

@@ -0,0 +1,33 @@
+import React from 'react';
+
+import BackToInstructor from './BackToInstructor';
+import {
+  initializeMockApp, render, screen,
+} from '../../setupTest';
+
+describe('Testing BackToInstructor Component', () => {
+  beforeAll(async () => {
+    await initializeMockApp();
+  });
+
+  test('Render without Public path', async () => {
+    render(<BackToInstructor courseId="test-course-id" />);
+
+    const linkEl = await screen.findByText('Back to Instructor Dashboard');
+    expect(linkEl.href).toEqual('http://localhost:18000/courses/test-course-id/instructor#view-course-info');
+  });
+
+  test('Render with Public path', async () => {
+    Object.defineProperty(window, 'location', {
+      get() {
+        return { pathname: '/communications/courses/test-course-id/bulk-email' };
+      },
+    });
+
+    render(<BackToInstructor courseId="test-course-id" />);
+
+    const linkEl = await screen.findByText('Back to Instructor Dashboard');
+    expect(linkEl.href).toEqual('http://localhost:18000/courses/test-course-id/instructor#view-course-info');
+    expect(window.location.pathname).toEqual('/communications/courses/test-course-id/bulk-email');
+  });
+});