Only show passing certificates on a learner profile

LEARNER-2486

lms/djangoapps/certificates/models.py

@@ -513,8 +513,6 @@ def certificate_status(generated_certificate):
                    certificate generation yet.
     generating   - A request has been made to generate a certificate,
                    but it has not been generated yet.
-    regenerating - A request has been made to regenerate a certificate,
-                   but it has not been generated yet.
     deleting     - A request has been made to delete a certificate.
 
     deleted      - The certificate has been deleted.

openedx/features/learner_profile/tests/views/test_learner_profile.py

@@ -9,6 +9,8 @@ from course_modes.models import CourseMode
 from django.conf import settings
 from django.core.urlresolvers import reverse
 from django.test.client import RequestFactory
+from lms.djangoapps.certificates.api import is_passing_status
+from opaque_keys.edx.locator import CourseLocator
 from openedx.core.djangoapps.waffle_utils.testutils import override_waffle_flag
 from openedx.features.learner_profile.views.learner_profile import learner_profile_context
 from student.tests.factories import CourseEnrollmentFactory, UserFactory
@@ -118,15 +120,15 @@ class LearnerProfileViewTest(UrlResetMixin, ModuleStoreTestCase):
         response = self.client.get(path=profile_path)
         self.assertEqual(404, response.status_code)
 
-    def _create_certificate(self, enrollment_mode):
+    def _create_certificate(self, course_key=None, enrollment_mode=CourseMode.HONOR, status='downloadable'):
         """Simulate that the user has a generated certificate. """
         CourseEnrollmentFactory.create(user=self.user, course_id=self.course.id, mode=enrollment_mode)
         return GeneratedCertificateFactory(
             user=self.user,
-            course_id=self.course.id,
+            course_id=course_key or self.course.id,
             mode=enrollment_mode,
             download_url=self.DOWNLOAD_URL,
-            status="downloadable"
+            status=status,
         )
 
     @ddt.data(CourseMode.HONOR, CourseMode.PROFESSIONAL, CourseMode.VERIFIED)
@@ -136,13 +138,50 @@ class LearnerProfileViewTest(UrlResetMixin, ModuleStoreTestCase):
         Verify that certificates are displayed with the correct card mode.
         """
         # Add new certificate
-        cert = self._create_certificate(cert_mode)
+        cert = self._create_certificate(enrollment_mode=cert_mode)
         cert.save()
 
         response = self.client.get('/u/{username}'.format(username=self.user.username))
 
         self.assertContains(response, 'card certificate-card mode-{cert_mode}'.format(cert_mode=cert_mode))
 
+    @ddt.data(
+        ['downloadable', True],
+        ['notpassing', False],
+    )
+    @ddt.unpack
+    @override_waffle_flag(SHOW_ACHIEVEMENTS_FLAG, active=True)
+    def test_certificate_status_visibility(self, status, is_passed_status):
+        """
+        Verify that certificates are only displayed for passing status.
+        """
+        # Add new certificate
+        cert = self._create_certificate(status=status)
+        cert.save()
+
+        # Ensure that this test is actually using both passing and non-passing certs.
+        self.assertEqual(is_passing_status(cert.status), is_passed_status)
+
+        response = self.client.get('/u/{username}'.format(username=self.user.username))
+
+        if is_passed_status:
+            self.assertContains(response, 'card certificate-card mode-{cert_mode}'.format(cert_mode=cert.mode))
+        else:
+            self.assertNotContains(response, 'card certificate-card mode-{cert_mode}'.format(cert_mode=cert.mode))
+
+    @override_waffle_flag(SHOW_ACHIEVEMENTS_FLAG, active=True)
+    def test_certificate_for_missing_course(self):
+        """
+        Verify that a certificate is not shown for a missing course.
+        """
+        # Add new certificate
+        cert = self._create_certificate(course_key=CourseLocator.from_string('course-v1:edX+INVALID+1'))
+        cert.save()
+
+        response = self.client.get('/u/{username}'.format(username=self.user.username))
+
+        self.assertNotContains(response, 'card certificate-card mode-{cert_mode}'.format(cert_mode=cert.mode))
+
     @ddt.data(True, False)
     @override_waffle_flag(SHOW_ACHIEVEMENTS_FLAG, active=True)
     def test_no_certificate_visibility(self, own_profile):

openedx/features/learner_profile/views/learner_achievements.py

@@ -2,9 +2,9 @@
 Views to render a learner's achievements.
 """
 
-from courseware.courses import get_course_overview_with_access
 from django.template.loader import render_to_string
 from lms.djangoapps.certificates import api as certificate_api
+from openedx.core.djangoapps.content.course_overviews.models import CourseOverview
 from openedx.core.djangoapps.plugin_api.views import EdxFragmentView
 from web_fragments.fragment import Fragment
 
@@ -34,9 +34,18 @@ class LearnerAchievementsFragmentView(EdxFragmentView):
         Returns a user's certificates sorted by course name.
         """
         course_certificates = certificate_api.get_certificates_for_user(username)
+        passing_certificates = []
         for course_certificate in course_certificates:
-            course_key = course_certificate['course_key']
-            course_overview = get_course_overview_with_access(request.user, 'load', course_key)
-            course_certificate['course'] = course_overview
-        course_certificates.sort(key=lambda certificate: certificate['course'].display_name_with_default)
-        return course_certificates
+            if course_certificate.get('is_passing', False):
+                course_key = course_certificate['course_key']
+                try:
+                    course_overview = CourseOverview.get_from_id(course_key)
+                    course_certificate['course'] = course_overview
+                    passing_certificates.append(course_certificate)
+                except CourseOverview.DoesNotExist:
+                    # This is unlikely to fail as the course should exist.
+                    # Ideally the cert should have all the information that
+                    # it needs. This might be solved by the Credentials API.
+                    pass
+        passing_certificates.sort(key=lambda certificate: certificate['course'].display_name_with_default)
+        return passing_certificates