Files
frontend-app-learning/src/courseware/CoursewareContainer.test.jsx

379 lines
15 KiB
JavaScript

import { getConfig, history } from '@edx/frontend-platform';
import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
import { AppProvider } from '@edx/frontend-platform/react';
import { waitForElementToBeRemoved } from '@testing-library/dom';
import '@testing-library/jest-dom/extend-expect';
import { render, screen } from '@testing-library/react';
import React from 'react';
import { Route, Switch } from 'react-router';
import { Factory } from 'rosie';
import MockAdapter from 'axios-mock-adapter';
import { UserMessagesProvider } from '../generic/user-messages';
import tabMessages from '../tab-page/messages';
import initializeMockApp from '../setupTest';
import CoursewareContainer from './CoursewareContainer';
import buildSimpleCourseBlocks from './data/__factories__/courseBlocks.factory';
import initializeStore from '../store';
// NOTE: Because the unit creates an iframe, we choose to mock it out as its rendering isn't
// pertinent to this test. Instead, we render a simple div that displays the properties we expect
// to have been passed into the component. Separate tests can handle unit rendering, but this
// proves that the component is rendered and receives the correct props. We probably COULD render
// Unit.jsx and its iframe in this test, but it's already complex enough.
function MockUnit({ courseId, id }) { // eslint-disable-line react/prop-types
return (
<div className="fake-unit">Unit Contents {courseId} {id}</div>
);
}
jest.mock(
'./course/sequence/Unit',
() => MockUnit,
);
initializeMockApp();
describe('CoursewareContainer', () => {
let store;
let component;
let axiosMock;
beforeEach(() => {
axiosMock = new MockAdapter(getAuthenticatedHttpClient());
store = initializeStore();
component = (
<AppProvider store={store}>
<UserMessagesProvider>
<Switch>
<Route
path={[
'/course/:courseId/:sequenceId/:unitId',
'/course/:courseId/:sequenceId',
'/course/:courseId',
]}
component={CoursewareContainer}
/>
</Switch>
</UserMessagesProvider>
</AppProvider>
);
});
it('should initialize to show a spinner', () => {
history.push('/course/abc123');
render(component);
const spinner = screen.getByRole('status');
expect(spinner.firstChild).toContainHTML(
`<span class="sr-only">${tabMessages.loading.defaultMessage}</span>`,
);
});
describe('when receiving successful course data', () => {
let courseId;
let courseMetadata;
let courseBlocks;
let sequenceMetadata;
let sequenceBlock;
let unitBlocks;
function assertLoadedHeader(container) {
const courseHeader = container.querySelector('.course-header');
// Ensure the course number and org appear - this proves we loaded course metadata properly.
expect(courseHeader).toHaveTextContent(courseMetadata.number);
expect(courseHeader).toHaveTextContent(courseMetadata.org);
// Ensure the course title is showing up in the header. This means we loaded course blocks properly.
expect(courseHeader.querySelector('.course-title')).toHaveTextContent(courseMetadata.name);
}
function assertSequenceNavigation(container) {
// Ensure we had appropriate sequence navigation buttons. We should only have one unit.
const sequenceNavButtons = container.querySelectorAll('nav.sequence-navigation button');
expect(sequenceNavButtons).toHaveLength(5);
expect(sequenceNavButtons[0]).toHaveTextContent('Previous');
// Prove this button is rendering an SVG tasks icon, meaning it's a unit/vertical.
expect(sequenceNavButtons[1].querySelector('svg')).toHaveClass('fa-tasks');
expect(sequenceNavButtons[4]).toHaveTextContent('Next');
}
function setupMockRequests() {
axiosMock.onGet(`${getConfig().LMS_BASE_URL}/api/courseware/course/${courseId}`).reply(200, courseMetadata);
axiosMock.onGet(new RegExp(`${getConfig().LMS_BASE_URL}/api/courses/v2/blocks/*`)).reply(200, courseBlocks);
axiosMock.onGet(`${getConfig().LMS_BASE_URL}/api/courseware/sequence/${sequenceBlock.id}`).reply(200, sequenceMetadata);
}
beforeEach(async () => {
// On page load, SequenceContext attempts to scroll to the top of the page.
global.scrollTo = jest.fn();
courseMetadata = Factory.build('courseMetadata');
courseId = courseMetadata.id;
const customUnitBlocks = [
Factory.build(
'block',
{ type: 'vertical' },
{ courseId },
),
Factory.build(
'block',
{ type: 'vertical' },
{ courseId },
),
Factory.build(
'block',
{ type: 'vertical' },
{ courseId },
),
];
const result = buildSimpleCourseBlocks(courseId, courseMetadata.name, { unitBlocks: customUnitBlocks });
courseBlocks = result.courseBlocks;
unitBlocks = result.unitBlocks;
// eslint-disable-next-line prefer-destructuring
sequenceBlock = result.sequenceBlock[0];
sequenceMetadata = Factory.build(
'sequenceMetadata',
{},
{ courseId, unitBlocks, sequenceBlock },
);
setupMockRequests();
});
describe('when the URL only contains a course ID', () => {
it('should use the resume block repsonse to pick a unit if it contains one', async () => {
axiosMock.onGet(`${getConfig().LMS_BASE_URL}/api/courseware/resume/${courseId}`).reply(200, {
sectionId: sequenceBlock.id,
unitId: unitBlocks[1].id,
});
history.push(`/course/${courseId}`);
const { container } = render(component);
// This is an important line that ensures the spinner has been removed - and thus our main
// content has been loaded - prior to proceeding with our expectations.
await waitForElementToBeRemoved(screen.getByRole('status'));
assertLoadedHeader(container);
assertSequenceNavigation(container);
expect(container.querySelector('.fake-unit')).toHaveTextContent('Unit Contents');
expect(container.querySelector('.fake-unit')).toHaveTextContent(courseId);
expect(container.querySelector('.fake-unit')).toHaveTextContent(unitBlocks[1].id);
});
it('should use the first sequence ID and activeUnitIndex if the resume block response is empty', async () => {
// OVERRIDE SEQUENCE METADATA:
// set the position to the third unit so we can prove activeUnitIndex is working
sequenceMetadata = Factory.build(
'sequenceMetadata',
{ position: 3 }, // position index is 1-based and is converted to 0-based for activeUnitIndex
{ courseId, unitBlocks, sequenceBlock },
);
// Re-call the mock setup now that sequenceMetadata is different.
setupMockRequests();
// Note how there is no sectionId/unitId returned in this mock response!
axiosMock.onGet(`${getConfig().LMS_BASE_URL}/api/courseware/resume/${courseId}`).reply(200, {});
history.push(`/course/${courseId}`);
const { container } = render(component);
// This is an important line that ensures the spinner has been removed - and thus our main
// content has been loaded - prior to proceeding with our expectations.
await waitForElementToBeRemoved(screen.getByRole('status'));
assertLoadedHeader(container);
assertSequenceNavigation(container);
expect(container.querySelector('.fake-unit')).toHaveTextContent('Unit Contents');
expect(container.querySelector('.fake-unit')).toHaveTextContent(courseId);
expect(container.querySelector('.fake-unit')).toHaveTextContent(unitBlocks[2].id);
});
});
describe('when the URL contains a course ID and sequence ID', () => {
it('should pick the first unit if position was not defined (activeUnitIndex becomes 0)', async () => {
history.push(`/course/${courseId}/${sequenceBlock.id}`);
const { container } = render(component);
// This is an important line that ensures the spinner has been removed - and thus our main
// content has been loaded - prior to proceeding with our expectations.
await waitForElementToBeRemoved(screen.getByRole('status'));
assertLoadedHeader(container);
assertSequenceNavigation(container);
expect(container.querySelector('.fake-unit')).toHaveTextContent('Unit Contents');
expect(container.querySelector('.fake-unit')).toHaveTextContent(courseId);
expect(container.querySelector('.fake-unit')).toHaveTextContent(unitBlocks[0].id);
});
it('should use activeUnitIndex to pick a unit from the sequence', async () => {
// OVERRIDE SEQUENCE METADATA:
sequenceMetadata = Factory.build(
'sequenceMetadata',
{ position: 3 }, // position index is 1-based and is converted to 0-based for activeUnitIndex
{ courseId, unitBlocks, sequenceBlock },
);
// Re-call the mock setup now that sequenceMetadata is different.
setupMockRequests();
history.push(`/course/${courseId}/${sequenceBlock.id}`);
const { container } = render(component);
// This is an important line that ensures the spinner has been removed - and thus our main
// content has been loaded - prior to proceeding with our expectations.
await waitForElementToBeRemoved(screen.getByRole('status'));
assertLoadedHeader(container);
assertSequenceNavigation(container);
expect(container.querySelector('.fake-unit')).toHaveTextContent('Unit Contents');
expect(container.querySelector('.fake-unit')).toHaveTextContent(courseId);
expect(container.querySelector('.fake-unit')).toHaveTextContent(unitBlocks[2].id);
});
});
describe('when the URL contains a course, sequence, and unit ID', () => {
it('should load the specified unit', async () => {
history.push(`/course/${courseId}/${sequenceBlock.id}/${unitBlocks[2].id}`);
const { container } = render(component);
// This is an important line that ensures the spinner has been removed - and thus our main
// content has been loaded - prior to proceeding with our expectations.
await waitForElementToBeRemoved(screen.getByRole('status'));
assertLoadedHeader(container);
assertSequenceNavigation(container);
expect(container.querySelector('.fake-unit')).toHaveTextContent('Unit Contents');
expect(container.querySelector('.fake-unit')).toHaveTextContent(courseId);
expect(container.querySelector('.fake-unit')).toHaveTextContent(unitBlocks[2].id);
});
});
describe('when the current sequence is an exam', () => {
const { location } = window;
beforeEach(() => {
delete window.location;
window.location = {
assign: jest.fn(),
};
});
afterEach(() => {
window.location = location;
});
it('should redirect to the sequence lmsWebUrl', async () => {
// OVERRIDE SEQUENCE METADATA:
sequenceMetadata = Factory.build(
'sequenceMetadata',
{ is_time_limited: true }, // position index is 1-based and is converted to 0-based for activeUnitIndex
{ courseId, unitBlocks, sequenceBlock },
);
// Re-call the mock setup now that sequenceMetadata is different.
setupMockRequests();
history.push(`/course/${courseId}/${sequenceBlock.id}/${unitBlocks[2].id}`);
render(component);
// This is an important line that ensures the spinner has been removed - and thus our main
// content has been loaded - prior to proceeding with our expectations.
await waitForElementToBeRemoved(screen.getByRole('status'));
expect(global.location.assign).toHaveBeenCalledWith(sequenceBlock.lms_web_url);
});
});
});
describe('when receiving a can_load_courseware error_code', () => {
let courseMetadata;
function setupWithDeniedStatus(errorCode) {
courseMetadata = Factory.build('courseMetadata', {
can_load_courseware: {
has_access: false,
error_code: errorCode,
additional_context_user_message: 'uhoh oh no', // only used by audit_expired
},
});
const courseId = courseMetadata.id;
const { courseBlocks, unitBlocks, sequenceBlock } = buildSimpleCourseBlocks(courseId, courseMetadata.name);
const sequenceMetadata = Factory.build(
'sequenceMetadata',
{},
{ courseId, unitBlocks, sequenceBlock },
);
const forbiddenCourseUrl = `${getConfig().LMS_BASE_URL}/api/courseware/course/${courseId}`;
const courseBlocksUrlRegExp = new RegExp(`${getConfig().LMS_BASE_URL}/api/courses/v2/blocks/*`);
const sequenceMetadataUrl = `${getConfig().LMS_BASE_URL}/api/courseware/sequence/${sequenceBlock.id}`;
axiosMock.onGet(forbiddenCourseUrl).reply(200, courseMetadata);
axiosMock.onGet(courseBlocksUrlRegExp).reply(200, courseBlocks);
axiosMock.onGet(sequenceMetadataUrl).reply(200, sequenceMetadata);
history.push(`/course/${courseId}`);
}
it('should go to course home for an enrollment_required error code', async () => {
setupWithDeniedStatus('enrollment_required');
render(component);
await waitForElementToBeRemoved(screen.getByRole('status'));
expect(global.location.href).toEqual(`http://localhost/redirect/course-home/${courseMetadata.id}`);
});
it('should go to course home for an authentication_required error code', async () => {
setupWithDeniedStatus('authentication_required');
render(component);
await waitForElementToBeRemoved(screen.getByRole('status'));
expect(global.location.href).toEqual(`http://localhost/redirect/course-home/${courseMetadata.id}`);
});
it('should go to dashboard for an unfulfilled_milestones error code', async () => {
setupWithDeniedStatus('unfulfilled_milestones');
render(component);
await waitForElementToBeRemoved(screen.getByRole('status'));
expect(global.location.href).toEqual('http://localhost/redirect/dashboard');
});
it('should go to the dashboard with an attached access_response_error for an audit_expired error code', async () => {
setupWithDeniedStatus('audit_expired');
render(component);
await waitForElementToBeRemoved(screen.getByRole('status'));
expect(global.location.href).toEqual('http://localhost/redirect/dashboard?access_response_error=uhoh%20oh%20no');
});
it('should go to the dashboard with a notlive start date for a course_not_started error code', async () => {
setupWithDeniedStatus('course_not_started');
render(component);
await waitForElementToBeRemoved(screen.getByRole('status'));
const startDate = '2/5/2013'; // This date is based on our courseMetadata factory's sample data.
expect(global.location.href).toEqual(`http://localhost/redirect/dashboard?notlive=${startDate}`);
});
});
});