add functional tests of registrations endpoint for students view

backend/tests/fake_data.py

@@ -17,13 +17,13 @@ def create_year_group(data: dict = None) -> YearGroup:
     return yg
 
 
-def create_project_supervisors(yg: YearGroup, amount: int) -> List[ProjectSupervisorFactory]:
+def create_project_supervisors(yg: YearGroup, amount: int, limit_group: int = 3) -> List[ProjectSupervisorFactory]:
     ps = [ProjectSupervisorFactory() for _ in range(amount)]
     db.session.add_all(ps)
     db.session.commit()
     db.session.add_all(
-        [YearGroupProjectSupervisorsFactory(limit_group=3, year_group_id=yg.id, project_supervisor_id=p.id) for p in
-         ps])
+        [YearGroupProjectSupervisorsFactory(limit_group=limit_group, year_group_id=yg.id, project_supervisor_id=p.id)
+         for p in ps])
     db.session.commit()
     return ps
 

backend/tests/functional_tests/students/test_registrations.py

@@ -0,0 +1,27 @@
+from ...utils import _test_case_client_without_response, assert_model_changes
+from ...fake_data import create_year_group, create_project_supervisors, create_groups
+from app.dependencies import db
+
+
+def test_list_year_group_for_specific_student(test_app_with_context) -> None:
+    with test_app_with_context.test_client() as client:
+        year_group = create_year_group()
+        amount_of_project_supervisors = 3
+        project_supervisors = create_project_supervisors(year_group, amount_of_project_supervisors)
+        groups = create_groups(year_group, 6)
+
+        for i in range(1, 4):
+            for _ in range(i):
+                gr = groups.pop()
+                gr.project_supervisor_id = project_supervisors[i - 1].id
+        db.session.commit()
+
+        url = f'/api/students/registrations/{year_group.id}/?per_page=10'
+        data = _test_case_client_without_response(client, url, None, 200, method='get')
+        assert data.get('max_pages') == 1
+        project_supervisors_data = data.get('project_supervisors')
+        assert len(project_supervisors_data) == amount_of_project_supervisors
+
+        for ps, expected_available_groups in zip(project_supervisors, [2, 1, 0]):
+            ps_dict = list(filter(lambda p: p.get('email') == ps.email, project_supervisors_data))[0]
+            assert ps_dict.get('available_groups') == expected_available_groups

backend/tests/functional_tests/students/test_year_group.py

@@ -1,5 +1,5 @@
-from ...utils import _test_case_client, _test_case_client_without_response, assert_model_changes
-from ...fake_data import create_year_group, create_students, create_student
+from ...utils import _test_case_client, _test_case_client_without_response
+from ...fake_data import create_year_group, create_student
 from app.base.mode import ModeGroups
 from app.dependencies import db
 from app.students.models import YearGroupStudents