fix: update logic for unenrollment (#36)

src/data/services/lms/api.js

@@ -34,10 +34,10 @@ const updateEmailSettings = ({ courseId, enable }) => post(stringifyUrl(
   { [apiKeys.courseId]: courseId, ...(enable && enableEmailsAction) },
 ));
 
-const unenrollFromCourse = ({ courseId }) => post(stringifyUrl(
-  urls.courseUnenroll,
-  { [apiKeys.courseId]: courseId, ...unenrollmentAction },
-));
+const unenrollFromCourse = ({ courseId }) => post(stringifyUrl(urls.courseUnenroll), {
+  [apiKeys.courseId]: courseId,
+  ...unenrollmentAction,
+});
 
 export default {
   initializeList,

src/data/services/lms/api.test.js

@@ -90,8 +90,7 @@ describe('lms api methods', () => {
       ).toEqual(
         utils.post(utils.stringifyUrl(
           urls.courseUnenroll,
-          { [apiKeys.courseId]: testCourseId, ...unenrollmentAction },
-        )),
+        ), { [apiKeys.courseId]: testCourseId, ...unenrollmentAction }),
       );
     });
   });

src/data/services/lms/utils.js

@@ -10,10 +10,11 @@ export const get = (...args) => getAuthenticatedHttpClient().get(...args);
 /**
  * post(url, data)
  * simple wrapper providing an authenticated Http client post action
+ * queryString.stringify is used to convert the object to query string with = and &
  * @param {string} url - target url
- * @param {object|string} data - post payload
+ * @param {object|string} body - post payload
  */
-export const post = (...args) => getAuthenticatedHttpClient().post(...args);
+export const post = (url, body) => getAuthenticatedHttpClient().post(url, queryString.stringify(body));
 
 export const client = getAuthenticatedHttpClient;
 

src/data/services/lms/utils.test.js

@@ -4,6 +4,7 @@ import * as utils from './utils';
 
 jest.mock('query-string', () => ({
   stringifyUrl: jest.fn((url, options) => ({ url, options })),
+  stringify: jest.fn((data) => data),
 }));
 jest.mock('@edx/frontend-platform/auth', () => ({
   getAuthenticatedHttpClient: jest.fn(),
@@ -22,8 +23,15 @@ describe('lms service utils', () => {
     it('forwards arguments to authenticatedHttpClient().post', () => {
       const post = jest.fn((...args) => ({ post: args }));
       getAuthenticatedHttpClient.mockReturnValue({ post });
-      const args = ['some', 'args', 'for', 'the', 'test'];
-      expect(utils.post(...args)).toEqual(post(...args));
+      const url = 'some url';
+      const body = {
+        some: 'body',
+        for: 'the',
+        test: 'yay',
+      };
+      const expectedUrl = utils.post(url, body);
+      expect(queryString.stringify).toHaveBeenCalledWith(body);
+      expect(expectedUrl).toEqual(post(url, body));
     });
   });
   describe('stringifyUrl', () => {