371 lines
13 KiB
Python
371 lines
13 KiB
Python
#-*- coding: utf-8 -*-
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"""
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Unit tests for video utils.
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"""
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from __future__ import absolute_import
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from datetime import datetime
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from unittest import TestCase
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import ddt
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import pytz
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import requests
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import six
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from django.conf import settings
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from django.core.files.uploadedfile import UploadedFile
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from django.test.utils import override_settings
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from edxval.api import create_profile, create_video, get_course_video_image_url, update_video_image
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from mock import patch
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from contentstore.tests.utils import CourseTestCase
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from contentstore.video_utils import (
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YOUTUBE_THUMBNAIL_SIZES,
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download_youtube_video_thumbnail,
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scrape_youtube_thumbnail,
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validate_video_image
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)
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from openedx.core.djangoapps.profile_images.tests.helpers import make_image_file
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class ValidateVideoImageTestCase(TestCase):
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"""
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Tests for `validate_video_image` method.
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"""
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def test_invalid_image_file_info(self):
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"""
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Test that when no file information is provided to validate_video_image, it gives proper error message.
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"""
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error = validate_video_image({})
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self.assertEquals(error, 'The image must have name, content type, and size information.')
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def test_corrupt_image_file(self):
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"""
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Test that when corrupt file is provided to validate_video_image, it gives proper error message.
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"""
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with open(settings.MEDIA_ROOT + '/test-corrupt-image.png', 'w+') as image_file:
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uploaded_image_file = UploadedFile(
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image_file,
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content_type='image/png',
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size=settings.VIDEO_IMAGE_SETTINGS['VIDEO_IMAGE_MIN_BYTES']
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)
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error = validate_video_image(uploaded_image_file)
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self.assertEquals(error, 'There is a problem with this image file. Try to upload a different file.')
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@ddt.ddt
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class ScrapeVideoThumbnailsTestCase(CourseTestCase):
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"""
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Test cases for scraping video thumbnails from youtube.
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"""
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def setUp(self):
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super(ScrapeVideoThumbnailsTestCase, self).setUp()
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course_ids = [six.text_type(self.course.id)]
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profiles = ['youtube']
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created = datetime.now(pytz.utc)
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previous_uploads = [
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{
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'edx_video_id': 'test1',
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'client_video_id': 'test1.mp4',
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'duration': 42.0,
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'status': 'upload',
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'courses': course_ids,
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'encoded_videos': [],
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'created': created
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},
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{
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'edx_video_id': 'test-youtube-video-1',
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'client_video_id': 'test-youtube-id.mp4',
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'duration': 128.0,
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'status': 'file_complete',
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'courses': course_ids,
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'created': created,
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'encoded_videos': [
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{
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'profile': 'youtube',
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'url': '3_yD_cEKoCk',
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'file_size': 1600,
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'bitrate': 100,
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}
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],
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},
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{
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'edx_video_id': 'test-youtube-video-2',
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'client_video_id': 'test-youtube-id.mp4',
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'image': 'image2.jpg',
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'duration': 128.0,
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'status': 'file_complete',
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'courses': course_ids,
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'created': created,
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'encoded_videos': [
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{
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'profile': 'youtube',
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'url': '3_yD_cEKoCk',
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'file_size': 1600,
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'bitrate': 100,
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}
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],
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},
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]
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for profile in profiles:
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create_profile(profile)
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for video in previous_uploads:
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create_video(video)
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# Create video images.
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with make_image_file() as image_file:
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update_video_image(
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'test-youtube-video-2', six.text_type(self.course.id), image_file, 'image.jpg'
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)
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def mocked_youtube_thumbnail_response(
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self,
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mocked_content=None,
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error_response=False,
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image_width=settings.VIDEO_IMAGE_MIN_WIDTH,
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image_height=settings.VIDEO_IMAGE_MIN_HEIGHT
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):
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"""
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Returns a mocked youtube thumbnail response.
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"""
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image_content = ''
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with make_image_file(dimensions=(image_width, image_height), ) as image_file:
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image_content = image_file.read()
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if mocked_content or error_response:
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image_content = mocked_content
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mocked_response = requests.Response()
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mocked_response.status_code = requests.codes.ok if image_content else requests.codes.not_found # pylint: disable=no-member
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mocked_response._content = image_content # pylint: disable=protected-access
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mocked_response.headers = {'content-type': 'image/jpeg'}
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return mocked_response
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@override_settings(AWS_ACCESS_KEY_ID='test_key_id', AWS_SECRET_ACCESS_KEY='test_secret')
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@patch('requests.get')
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@ddt.data(
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(
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{
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'maxresdefault': 'maxresdefault-result-image-content',
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'sddefault': 'sddefault-result-image-content',
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'hqdefault': 'hqdefault-result-image-content',
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'mqdefault': 'mqdefault-result-image-content',
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'default': 'default-result-image-content'
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},
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'maxresdefault-result-image-content'
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),
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(
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{
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'maxresdefault': '',
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'sddefault': 'sddefault-result-image-content',
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'hqdefault': 'hqdefault-result-image-content',
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'mqdefault': 'mqdefault-result-image-content',
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'default': 'default-result-image-content'
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},
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'sddefault-result-image-content'
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),
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(
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{
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'maxresdefault': '',
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'sddefault': '',
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'hqdefault': 'hqdefault-result-image-content',
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'mqdefault': 'mqdefault-result-image-content',
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'default': 'default-result-image-content'
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},
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'hqdefault-result-image-content'
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),
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(
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{
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'maxresdefault': '',
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'sddefault': '',
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'hqdefault': '',
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'mqdefault': 'mqdefault-result-image-content',
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'default': 'default-result-image-content'
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},
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'mqdefault-result-image-content'
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),
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(
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{
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'maxresdefault': '',
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'sddefault': '',
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'hqdefault': '',
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'mqdefault': '',
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'default': 'default-result-image-content'
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},
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'default-result-image-content'
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),
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)
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@ddt.unpack
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def test_youtube_video_thumbnail_download(
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self,
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thumbnail_content_data,
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expected_thumbnail_content,
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mocked_request
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):
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"""
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Test that we get highest resolution video thumbnail available from youtube.
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"""
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# Mock get youtube thumbnail responses.
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def mocked_youtube_thumbnail_responses(resolutions):
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"""
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Returns a list of mocked responses containing youtube thumbnails.
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"""
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mocked_responses = []
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for resolution in YOUTUBE_THUMBNAIL_SIZES:
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mocked_content = resolutions.get(resolution, '')
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error_response = False if mocked_content else True
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mocked_responses.append(self.mocked_youtube_thumbnail_response(mocked_content, error_response))
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return mocked_responses
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mocked_request.side_effect = mocked_youtube_thumbnail_responses(thumbnail_content_data)
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thumbnail_content, thumbnail_content_type = download_youtube_video_thumbnail('test-yt-id')
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# Verify that we get the expected thumbnail content.
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self.assertEqual(thumbnail_content, expected_thumbnail_content)
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self.assertEqual(thumbnail_content_type, 'image/jpeg')
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@override_settings(AWS_ACCESS_KEY_ID='test_key_id', AWS_SECRET_ACCESS_KEY='test_secret')
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@patch('requests.get')
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def test_scrape_youtube_thumbnail(self, mocked_request):
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"""
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Test that youtube thumbnails are correctly scrapped.
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"""
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course_id = six.text_type(self.course.id)
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video1_edx_video_id = 'test-youtube-video-1'
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video2_edx_video_id = 'test-youtube-video-2'
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# Mock get youtube thumbnail responses.
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mocked_request.side_effect = [self.mocked_youtube_thumbnail_response()]
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# Verify that video1 has no image attached.
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video1_image_url = get_course_video_image_url(course_id=course_id, edx_video_id=video1_edx_video_id)
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self.assertIsNone(video1_image_url)
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# Verify that video2 has already image attached.
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video2_image_url = get_course_video_image_url(course_id=course_id, edx_video_id=video2_edx_video_id)
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self.assertIsNotNone(video2_image_url)
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# Scrape video thumbnails.
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scrape_youtube_thumbnail(course_id, video1_edx_video_id, 'test-yt-id')
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scrape_youtube_thumbnail(course_id, video2_edx_video_id, 'test-yt-id2')
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# Verify that now video1 image is attached.
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video1_image_url = get_course_video_image_url(course_id=course_id, edx_video_id=video1_edx_video_id)
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self.assertIsNotNone(video1_image_url)
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# Also verify that video2's image is not updated.
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video2_image_url_latest = get_course_video_image_url(course_id=course_id, edx_video_id=video2_edx_video_id)
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self.assertEqual(video2_image_url, video2_image_url_latest)
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@ddt.data(
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(
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100,
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100,
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False
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),
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(
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640,
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360,
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True
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)
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)
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@override_settings(AWS_ACCESS_KEY_ID='test_key_id', AWS_SECRET_ACCESS_KEY='test_secret')
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@patch('contentstore.video_utils.LOGGER')
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@patch('requests.get')
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@ddt.unpack
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def test_scrape_youtube_thumbnail_logging(
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self,
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image_width,
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image_height,
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is_success,
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mocked_request,
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mock_logger
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):
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"""
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Test that we get correct logs in case of failure as well as success.
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"""
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course_id = six.text_type(self.course.id)
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video1_edx_video_id = 'test-youtube-video-1'
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mocked_request.side_effect = [
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self.mocked_youtube_thumbnail_response(
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image_width=image_width,
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image_height=image_height
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)
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]
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scrape_youtube_thumbnail(course_id, video1_edx_video_id, 'test-yt-id')
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if is_success:
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mock_logger.info.assert_called_with(
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u'VIDEOS: Scraping youtube video thumbnail for edx_video_id [%s] in course [%s]',
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video1_edx_video_id,
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course_id
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)
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else:
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mock_logger.info.assert_called_with(
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u'VIDEOS: Scraping youtube video thumbnail failed for edx_video_id [%s] in course [%s] with error: %s',
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video1_edx_video_id,
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course_id,
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'This image file must be larger than 2 KB.'
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)
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@ddt.data(
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(
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None,
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'image/jpeg',
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u'This image file must be larger than {image_min_size}.'.format(
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image_min_size=settings.VIDEO_IMAGE_MIN_FILE_SIZE_KB
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)
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),
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(
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'dummy-content',
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None,
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u'This image file type is not supported. Supported file types are {supported_file_formats}.'.format(
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supported_file_formats=list(settings.VIDEO_IMAGE_SUPPORTED_FILE_FORMATS.keys())
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)
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),
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(
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None,
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None,
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u'This image file type is not supported. Supported file types are {supported_file_formats}.'.format(
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supported_file_formats=list(settings.VIDEO_IMAGE_SUPPORTED_FILE_FORMATS.keys())
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)
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),
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)
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@patch('contentstore.video_utils.LOGGER')
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@patch('contentstore.video_utils.download_youtube_video_thumbnail')
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@ddt.unpack
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def test_no_video_thumbnail_downloaded(
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self,
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image_content,
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image_content_type,
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error_message,
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mock_download_youtube_thumbnail,
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mock_logger
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):
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"""
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Test that when no thumbnail is downloaded, video image is not updated.
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"""
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mock_download_youtube_thumbnail.return_value = image_content, image_content_type
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course_id = six.text_type(self.course.id)
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video1_edx_video_id = 'test-youtube-video-1'
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# Verify that video1 has no image attached.
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video1_image_url = get_course_video_image_url(course_id=course_id, edx_video_id=video1_edx_video_id)
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self.assertIsNone(video1_image_url)
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# Scrape video thumbnail.
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scrape_youtube_thumbnail(course_id, video1_edx_video_id, 'test-yt-id')
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mock_logger.info.assert_called_with(
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u'VIDEOS: Scraping youtube video thumbnail failed for edx_video_id [%s] in course [%s] with error: %s',
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video1_edx_video_id,
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course_id,
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error_message
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)
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# Verify that no image is attached to video1.
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video1_image_url = get_course_video_image_url(course_id=course_id, edx_video_id=video1_edx_video_id)
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self.assertIsNone(video1_image_url)
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