Update Search Indexer to exclude unpublished programs

Exclude when nested unpublished programs are under course runs on course run search endpoint.

ECOM-6147

course_discovery/apps/course_metadata/models.py

@@ -366,7 +366,9 @@ class CourseRun(TimeStampedModel):
 
     @property
     def program_types(self):
-        return [program.type.name for program in self.programs.all()]
+        # Exclude unpublished programs from list so we don't identify that program type if not available
+        all_programs = [program for program in self.programs.all() if program.status != ProgramStatus.Unpublished]
+        return [program.type.name for program in all_programs]
 
     @property
     def marketing_url(self):

course_discovery/apps/course_metadata/tests/test_models.py

@@ -163,6 +163,13 @@ class CourseRunTests(TestCase):
         other_program = factories.ProgramFactory(courses=courses)
         self.assertCountEqual(self.course_run.program_types, [program.type.name, other_program.type.name])
 
+    def test_unpublished_program_types(self):
+        """ Verify the property exludes program types that are unpublished. """
+        courses = [self.course_run.course]
+        program = factories.ProgramFactory(courses=courses)
+        other_program = factories.ProgramFactory(courses=courses, status=ProgramStatus.Unpublished)
+        self.assertCountEqual(self.course_run.program_types, [program.type.name])
+
 
 class OrganizationTests(TestCase):
     """ Tests for the `Organization` model. """