start adding exam dates

rapids/migrations/0009_exam_end_date_exam_restrict_to_dates_exam_start_date.py

@@ -0,0 +1,28 @@
+# Generated by Django 5.0.2 on 2024-05-13 10:41
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('rapids', '0008_alter_exam_authors_only'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='exam',
+            name='end_date',
+            field=models.DateTimeField(help_text='Date (and time) the exam/collection ends', null=True),
+        ),
+        migrations.AddField(
+            model_name='exam',
+            name='restrict_to_dates',
+            field=models.BooleanField(default=False, help_text='If the exam/collection should only be taken between the start and end date times'),
+        ),
+        migrations.AddField(
+            model_name='exam',
+            name='start_date',
+            field=models.DateTimeField(help_text='Date (and time) the exam/collection starts', null=True),
+        ),
+    ]

rapids/tests/test_rapids_exams.py

@@ -1,7 +1,12 @@
 import json
 import os
 from re import A
+import time
 from django.conf import settings
+from django.core.exceptions import ValidationError
+from django.http import Http404
+from django.utils import timezone
+
 import pytest
 
 import tempfile
@@ -508,3 +513,53 @@ def test_exams(db, client):
 
         generated_questions.pop(-1).delete()
         users_tested = users_tested + 1
+
+
+def test_exams_with_dates(db, client):
+    create_cid_user_and_groups(db)
+    exam = create_exam(db)
+
+
+    active_exams = client.get(reverse(f"{APP_NAME}:active_exams"))
+    assert active_exams.status_code == 200
+    assert len(json.loads(active_exams.content)["exams"]) == 0
+
+    cid_user_1000 = CidUser.objects.get(cid=1000)
+    user1 = User.objects.get(username="user1")
+    exam.check_user_can_take(None, None, user1)
+    exam.check_user_can_take(cid_user_1000.cid, cid_user_1000.passcode)
+
+    exam.active = False
+    exam.save()
+
+    with pytest.raises(Http404): 
+        exam.check_user_can_take(None, None, user1)
+
+    with pytest.raises(Http404): 
+        exam.check_user_can_take(cid_user_1000.cid, cid_user_1000.passcode)
+
+    with pytest.raises(ValidationError): 
+        exam.restrict_to_dates = True
+        exam.save()
+    with pytest.raises(ValidationError): 
+        exam.restrict_to_dates = True
+        exam.end_date = timezone.now()
+        exam.start_date = timezone.now() + timezone.timedelta(days=1)
+        exam.save()
+    
+    exam.start_date = timezone.now() 
+    exam.end_date = None # The previously set value seems to remain...
+
+    exam.restrict_to_dates = True
+    exam.save()
+    exam.check_user_can_take(None, None, user1)
+    exam.check_user_can_take(cid_user_1000.cid, cid_user_1000.passcode)
+
+    exam.end_date = timezone.now()
+    exam.save()
+
+    with pytest.raises(Http404): 
+        exam.check_user_can_take(None, None, user1)
+
+    with pytest.raises(Http404): 
+        exam.check_user_can_take(cid_user_1000.cid, cid_user_1000.passcode)