6f9a3911e5
This abstract class contains most of the fields (aside from the id and foreign key to StudentModule that the subclasses need to manage). It also provides a get_history method that abstracts searching across multiple backends. Move router code to openedx/core We need to use it from cms and lms. Ensure aws_migrate can be used for migrating both the lms and cms. Handle queries directed to student_module_history vs default and the extra queries generated by Django 1.8 (SAVEPOINTS, etc). Additionally, flag testing classes as multi_db so that Django will flush the non-default database between unit tests. Further decouple the foreignkey relation between csm and csmhe When calling StudentModule().delete() Django will try to delete CSMHE objects, but naively does so in the database, not by consulting the database router. Instead, we disable django cascading deletes and listen for post_delete signals and clean up CSMHE by hand. Add feature flags for CSMHE One to turn it on/off so we can control the deploy. The other will control whether or not we read from two database tables or one when searching. Update tests to explicitly use this get_history method rather than looking directly into StudentModuleHistory or StudentModuleHistoryExtended. Inform lettuce to avoid the coursewarehistoryextended app Otherwise it fails when it can't find features/ in that app. Add Pg support, this is not tested automatically.
82 lines
4.3 KiB
Python
82 lines
4.3 KiB
Python
"""
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Tests for coursewarehistoryextended
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Many aspects of this app are covered by the courseware tests,
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but these are specific to the new storage model with multiple
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backend tables.
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"""
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import json
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from mock import patch
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from django.test import TestCase
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from django.conf import settings
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from unittest import skipUnless
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from nose.plugins.attrib import attr
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from courseware.models import BaseStudentModuleHistory, StudentModuleHistory, StudentModule
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from courseware.tests.factories import StudentModuleFactory, location, course_id
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@attr('shard_1')
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@skipUnless(settings.FEATURES["ENABLE_CSMH_EXTENDED"], "CSMH Extended needs to be enabled")
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class TestStudentModuleHistoryBackends(TestCase):
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""" Tests of data in CSMH and CSMHE """
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# Tell Django to clean out all databases, not just default
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multi_db = True
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def setUp(self):
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super(TestStudentModuleHistoryBackends, self).setUp()
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for record in (1, 2, 3):
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# This will store into CSMHE via the post_save signal
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csm = StudentModuleFactory.create(module_state_key=location('usage_id'),
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course_id=course_id,
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state=json.dumps({'type': 'csmhe', 'order': record}))
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# This manually gets us a CSMH record to compare
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csmh = StudentModuleHistory(student_module=csm,
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version=None,
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created=csm.modified,
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state=json.dumps({'type': 'csmh', 'order': record}),
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grade=csm.grade,
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max_grade=csm.max_grade)
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csmh.save()
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@patch.dict("django.conf.settings.FEATURES", {"ENABLE_CSMH_EXTENDED": True})
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@patch.dict("django.conf.settings.FEATURES", {"ENABLE_READING_FROM_MULTIPLE_HISTORY_TABLES": True})
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def test_get_history_true_true(self):
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student_module = StudentModule.objects.all()
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history = BaseStudentModuleHistory.get_history(student_module)
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self.assertEquals(len(history), 6)
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self.assertEquals({'type': 'csmhe', 'order': 3}, json.loads(history[0].state))
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self.assertEquals({'type': 'csmhe', 'order': 2}, json.loads(history[1].state))
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self.assertEquals({'type': 'csmhe', 'order': 1}, json.loads(history[2].state))
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self.assertEquals({'type': 'csmh', 'order': 3}, json.loads(history[3].state))
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self.assertEquals({'type': 'csmh', 'order': 2}, json.loads(history[4].state))
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self.assertEquals({'type': 'csmh', 'order': 1}, json.loads(history[5].state))
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@patch.dict("django.conf.settings.FEATURES", {"ENABLE_CSMH_EXTENDED": True})
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@patch.dict("django.conf.settings.FEATURES", {"ENABLE_READING_FROM_MULTIPLE_HISTORY_TABLES": False})
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def test_get_history_true_false(self):
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student_module = StudentModule.objects.all()
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history = BaseStudentModuleHistory.get_history(student_module)
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self.assertEquals(len(history), 3)
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self.assertEquals({'type': 'csmhe', 'order': 3}, json.loads(history[0].state))
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self.assertEquals({'type': 'csmhe', 'order': 2}, json.loads(history[1].state))
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self.assertEquals({'type': 'csmhe', 'order': 1}, json.loads(history[2].state))
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@patch.dict("django.conf.settings.FEATURES", {"ENABLE_CSMH_EXTENDED": False})
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@patch.dict("django.conf.settings.FEATURES", {"ENABLE_READING_FROM_MULTIPLE_HISTORY_TABLES": True})
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def test_get_history_false_true(self):
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student_module = StudentModule.objects.all()
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history = BaseStudentModuleHistory.get_history(student_module)
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self.assertEquals(len(history), 3)
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self.assertEquals({'type': 'csmh', 'order': 3}, json.loads(history[0].state))
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self.assertEquals({'type': 'csmh', 'order': 2}, json.loads(history[1].state))
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self.assertEquals({'type': 'csmh', 'order': 1}, json.loads(history[2].state))
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@patch.dict("django.conf.settings.FEATURES", {"ENABLE_CSMH_EXTENDED": False})
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@patch.dict("django.conf.settings.FEATURES", {"ENABLE_READING_FROM_MULTIPLE_HISTORY_TABLES": False})
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def test_get_history_false_false(self):
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student_module = StudentModule.objects.all()
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history = BaseStudentModuleHistory.get_history(student_module)
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self.assertEquals(len(history), 0)
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