fix: corrects navigation if the student does not pass the entrance ex…

…am (#1429)

src/course-home/progress-tab/certificate-status/CertificateStatus.jsx

@@ -19,6 +19,10 @@ const CertificateStatus = ({ intl }) => {
     courseId,
   } = useSelector(state => state.courseHome);
 
+  const {
+    entranceExamData,
+  } = useModel('coursewareMeta', courseId);
+
   const {
     isEnrolled,
     org,
@@ -42,13 +46,16 @@ const CertificateStatus = ({ intl }) => {
     certificateAvailableDate,
   } = certificateData || {};
 
+  const entranceExamPassed = entranceExamData?.entranceExamPassed ?? null;
+
   const mode = getCourseExitMode(
     certificateData,
     hasScheduledContent,
     isEnrolled,
     userHasPassingGrade,
     null, // CourseExitPageIsActive
     canViewCertificate,
+    entranceExamPassed,
   );
 
   const eventProperties = {

src/courseware/course/course-exit/utils.js

@@ -9,6 +9,7 @@ const COURSE_EXIT_MODES = {
   celebration: 1,
   nonPassing: 2,
   inProgress: 3,
+  entranceExamFail: 4,
 };
 
 // These are taken from the edx-platform `get_cert_data` function found in lms/courseware/views/views.py
@@ -32,9 +33,14 @@ function getCourseExitMode(
   userHasPassingGrade,
   courseExitPageIsActive = null,
   canImmediatelyViewCertificate = false,
+  entranceExamPassed = null,
 ) {
   const authenticatedUser = getAuthenticatedUser();
 
+  if (entranceExamPassed === false) {
+    return COURSE_EXIT_MODES.entranceExamFail;
+  }
+
   if (courseExitPageIsActive === false || !authenticatedUser || !isEnrolled) {
     return COURSE_EXIT_MODES.disabled;
   }
@@ -73,6 +79,7 @@ function GetCourseExitNavigation(courseId, intl) {
     isEnrolled,
     userHasPassingGrade,
     courseExitPageIsActive,
+    entranceExamData: { entranceExamPassed },
   } = useModel('coursewareMeta', courseId);
   const { canViewCertificate } = useModel('courseHomeMeta', courseId);
   const exitMode = getCourseExitMode(
@@ -82,8 +89,15 @@ function GetCourseExitNavigation(courseId, intl) {
     userHasPassingGrade,
     courseExitPageIsActive,
     canViewCertificate,
+    entranceExamPassed,
   );
-  const exitActive = exitMode !== COURSE_EXIT_MODES.disabled;
+
+  /** exitActive is used to enable/disable the exit i.e. next buttons.
+   COURSE_EXIT_MODES denote the current status of the course.
+   Available COURSE_EXIT_MODES: disabled, celebration, nonPassing, inProgress, entranceExamFail
+   If the user fails the entrance exam,
+   access to further course sections should not be allowed i.e. disable the next buttons. */
+  const exitActive = ((exitMode !== COURSE_EXIT_MODES.disabled) && (exitMode !== COURSE_EXIT_MODES.entranceExamFail));
 
   let exitText;
   switch (exitMode) {

src/courseware/course/sequence/sequence-navigation/UnitNavigation.test.jsx

@@ -86,6 +86,50 @@ describe('Unit Navigation', () => {
     expect(screen.getByRole('button', { name: /next/i })).toBeDisabled();
   });
 
+  it('has the "Next" button disabled for entrance exam failed', async () => {
+    const testCourseMetadata = {
+      ...courseMetadata,
+      certificate_data: { cert_status: 'bogus_status' },
+      enrollment: { is_active: true },
+      entrance_exam_data: {
+        entrance_exam_current_score: 0, entrance_exam_enabled: true, entrance_exam_id: '1', entrance_exam_minimum_score_pct: 0.65, entrance_exam_passed: false,
+      },
+    };
+    const testStore = await initializeTestStore({ courseMetadata: testCourseMetadata, unitBlocks }, false);
+    // Have to refetch the sequenceId since the new store generates new sequences
+    const { courseware } = testStore.getState();
+    const testData = { ...mockData, sequenceId: courseware.sequenceId };
+
+    render(
+      <UnitNavigation {...testData} unitId={unitBlocks[0].id} />,
+      { store: testStore, wrapWithRouter: true },
+    );
+
+    expect(screen.getByRole('button', { name: /next/i })).toBeDisabled();
+  });
+
+  it('has the "Next" button enabled for entrance exam pass', async () => {
+    const testCourseMetadata = {
+      ...courseMetadata,
+      certificate_data: { cert_status: 'bogus_status' },
+      enrollment: { is_active: true },
+      entrance_exam_data: {
+        entrance_exam_current_score: 1.0, entrance_exam_enabled: true, entrance_exam_id: '1', entrance_exam_minimum_score_pct: 0.65, entrance_exam_passed: true,
+      },
+    };
+    const testStore = await initializeTestStore({ courseMetadata: testCourseMetadata, unitBlocks }, false);
+    // Have to refetch the sequenceId since the new store generates new sequences
+    const { courseware } = testStore.getState();
+    const testData = { ...mockData, sequenceId: courseware.sequenceId };
+
+    render(
+      <UnitNavigation {...testData} unitId={unitBlocks[0].id} />,
+      { store: testStore, wrapWithRouter: true },
+    );
+
+    expect(screen.getByRole('link', { name: /next/i })).toBeEnabled();
+  });
+
   it('displays end of course message instead of the "Next" button as needed', async () => {
     const testCourseMetadata = { ...courseMetadata, certificate_data: { cert_status: 'notpassing' }, enrollment: { is_active: true } };
     const testStore = await initializeTestStore({ courseMetadata: testCourseMetadata, unitBlocks }, false);

src/courseware/course/sequence/sequence-navigation/hooks.js

@@ -13,6 +13,7 @@ export function useSequenceNavigationMetadata(currentSequenceId, currentUnitId)
   const sequence = useModel('sequences', currentSequenceId);
   const courseId = useSelector(state => state.courseware.courseId);
   const courseStatus = useSelector(state => state.courseware.courseStatus);
+  const { entranceExamData: { entranceExamPassed } } = useModel('coursewareMeta', courseId);
   const sequenceStatus = useSelector(state => state.courseware.sequenceStatus);
 
   // If we don't know the sequence and unit yet, then assume no.
@@ -25,6 +26,16 @@ export function useSequenceNavigationMetadata(currentSequenceId, currentUnitId)
     };
   }
 
+  // if entrance exam is not passed then we should treat this as 1st and last unit
+  if (entranceExamPassed === false) {
+    return {
+      isFirstUnit: true,
+      isLastUnit: true,
+      navigationDisabledNextSequence: false,
+      navigationDisabledPrevSequence: false,
+    };
+  }
+
   const sequenceIndex = sequenceIds.indexOf(currentSequenceId);
   const unitIndex = sequence.unitIds.indexOf(currentUnitId);