308 lines
12 KiB
Go
308 lines
12 KiB
Go
package media_test
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import (
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"bytes"
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"context"
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"database/sql"
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"errors"
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"io"
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"io/ioutil"
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"strings"
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"testing"
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"time"
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"git.netflux.io/rob/clipper/config"
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"git.netflux.io/rob/clipper/generated/mocks"
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"git.netflux.io/rob/clipper/generated/store"
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"git.netflux.io/rob/clipper/media"
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"github.com/google/uuid"
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"github.com/kkdai/youtube/v2"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/mock"
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"github.com/stretchr/testify/require"
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"go.uber.org/zap"
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)
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func TestGetAudioFromYoutube(t *testing.T) {
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const (
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videoID = "abcdef12"
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inFixturePath = "testdata/tone-44100-stereo-int16-30000ms.raw"
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inFixtureLen = int64(5_292_000)
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inFixtureFrames = inFixtureLen / 4 // stereo-int16
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)
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ctx := context.Background()
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mediaSetID := uuid.New()
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mediaSet := store.MediaSet{
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ID: mediaSetID,
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YoutubeID: videoID,
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AudioYoutubeItag: 123,
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AudioChannels: 2,
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AudioFramesApprox: inFixtureFrames,
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}
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video := &youtube.Video{
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ID: videoID,
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Formats: []youtube.Format{{ItagNo: 123, FPS: 0, AudioChannels: 2}},
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}
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t.Run("NOK,ErrorFetchingMediaSet", func(t *testing.T) {
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var mockStore mocks.Store
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mockStore.On("GetMediaSet", mock.Anything, mediaSetID).Return(store.MediaSet{}, errors.New("db went boom"))
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service := media.NewMediaSetService(&mockStore, nil, nil, nil, config.Config{}, zap.NewNop().Sugar())
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_, err := service.GetPeaks(ctx, mediaSetID, 10)
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assert.EqualError(t, err, "error getting media set: db went boom")
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})
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t.Run("NOK,ErrorFetchingStream", func(t *testing.T) {
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var mockStore mocks.Store
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mockStore.On("GetMediaSet", ctx, mediaSetID).Return(mediaSet, nil)
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var youtubeClient mocks.YoutubeClient
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youtubeClient.On("GetVideoContext", ctx, mediaSet.YoutubeID).Return(video, nil)
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youtubeClient.On("GetStreamContext", ctx, video, &video.Formats[0]).Return(nil, int64(0), errors.New("uh oh"))
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service := media.NewMediaSetService(&mockStore, &youtubeClient, nil, nil, config.Config{}, zap.NewNop().Sugar())
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_, err := service.GetPeaks(ctx, mediaSetID, 10)
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assert.EqualError(t, err, "error fetching stream: uh oh")
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})
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t.Run("NOK,ErrorBuildingProgressReader", func(t *testing.T) {
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invalidMediaSet := mediaSet
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invalidMediaSet.AudioChannels = 0
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var mockStore mocks.Store
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mockStore.On("GetMediaSet", mock.Anything, mediaSetID).Return(invalidMediaSet, nil)
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var youtubeClient mocks.YoutubeClient
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youtubeClient.On("GetVideoContext", ctx, mediaSet.YoutubeID).Return(video, nil)
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youtubeClient.On("GetStreamContext", ctx, video, &video.Formats[0]).Return(nil, int64(0), nil)
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service := media.NewMediaSetService(&mockStore, &youtubeClient, nil, nil, config.Config{}, zap.NewNop().Sugar())
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_, err := service.GetPeaks(ctx, mediaSetID, 10)
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assert.EqualError(t, err, "error building progress reader: error creating audio progress reader (framesExpected = 1323000, channels = 0, numBins = 10)")
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})
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t.Run("NOK,UploadError", func(t *testing.T) {
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var mockStore mocks.Store
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mockStore.On("GetMediaSet", mock.Anything, mediaSetID).Return(mediaSet, nil)
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mockStore.On("SetEncodedAudioUploaded", ctx, mock.Anything).Return(mediaSet, nil)
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var youtubeClient mocks.YoutubeClient
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youtubeClient.On("GetVideoContext", ctx, mediaSet.YoutubeID).Return(video, nil)
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youtubeClient.On("GetStreamContext", ctx, video, &video.Formats[0]).Return(io.NopCloser(bytes.NewReader(nil)), int64(0), nil)
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var fileStore mocks.FileStore
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fileStore.On("PutObject", ctx, mock.Anything, mock.Anything, "audio/raw").Return(int64(0), errors.New("error uploading raw audio"))
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fileStore.On("PutObject", ctx, mock.Anything, mock.Anything, "audio/opus").Return(int64(0), nil)
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fileStore.On("GetURL", ctx, mock.Anything).Return("", nil)
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cmd := helperCommand(t, "", inFixturePath, "", 0)
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service := media.NewMediaSetService(&mockStore, &youtubeClient, &fileStore, cmd, config.Config{}, zap.NewNop().Sugar())
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stream, err := service.GetPeaks(ctx, mediaSetID, 10)
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assert.NoError(t, err)
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_, err = stream.Next()
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assert.EqualError(t, err, "error waiting for progress: error uploading raw audio: error uploading raw audio")
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})
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t.Run("NOK,FFmpegError", func(t *testing.T) {
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var mockStore mocks.Store
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mockStore.On("GetMediaSet", mock.Anything, mediaSetID).Return(mediaSet, nil)
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mockStore.On("SetEncodedAudioUploaded", ctx, mock.Anything).Return(mediaSet, nil)
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mockStore.On("SetRawAudioUploaded", ctx, mock.Anything).Return(mediaSet, nil)
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var youtubeClient mocks.YoutubeClient
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youtubeClient.On("GetVideoContext", ctx, mediaSet.YoutubeID).Return(video, nil)
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youtubeClient.On("GetStreamContext", ctx, video, &video.Formats[0]).Return(io.NopCloser(strings.NewReader("some audio")), int64(0), nil)
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var fileStore mocks.FileStore
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fileStore.On("PutObject", ctx, mock.Anything, mock.Anything, mock.Anything).Return(int64(0), nil)
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fileStore.On("GetURL", ctx, mock.Anything).Return("", nil)
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cmd := helperCommand(t, "", inFixturePath, "oh no", 101)
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service := media.NewMediaSetService(&mockStore, &youtubeClient, &fileStore, cmd, config.Config{}, zap.NewNop().Sugar())
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stream, err := service.GetPeaks(ctx, mediaSetID, 10)
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assert.NoError(t, err)
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_, err = stream.Next()
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assert.EqualError(t, err, "error waiting for progress: error waiting for command: exit status 101, output: oh no")
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})
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t.Run("OK", func(t *testing.T) {
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// Mock Store
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var mockStore mocks.Store
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mockStore.On("GetMediaSet", ctx, mediaSetID).Return(mediaSet, nil)
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mockStore.On("SetRawAudioUploaded", ctx, mock.MatchedBy(func(p store.SetRawAudioUploadedParams) bool {
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return p.ID == mediaSetID && p.AudioFrames.Int64 == inFixtureFrames
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})).Return(mediaSet, nil)
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mockStore.On("SetEncodedAudioUploaded", ctx, mock.MatchedBy(func(p store.SetEncodedAudioUploadedParams) bool {
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return p.ID == mediaSetID
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})).Return(mediaSet, nil)
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defer mockStore.AssertExpectations(t)
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// Mock YoutubeClient
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encodedContent := "this is an opus stream"
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reader := io.NopCloser(strings.NewReader(encodedContent))
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var youtubeClient mocks.YoutubeClient
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youtubeClient.On("GetVideoContext", ctx, mediaSet.YoutubeID).Return(video, nil)
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youtubeClient.On("GetStreamContext", ctx, video, &video.Formats[0]).Return(reader, int64(len(encodedContent)), nil)
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defer youtubeClient.AssertExpectations(t)
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// Mock FileStore
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// It is necessary to consume the readers passed into the mocks to avoid IO
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// errors. Since we're doing that we can also assert the content that is
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// passed to them is as expected.
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url := "https://www.example.com/foo"
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var fileStore mocks.FileStore
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fileStore.On("PutObject", ctx, "media_sets/"+mediaSetID.String()+"/audio.opus", mock.Anything, "audio/opus").
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Run(func(args mock.Arguments) {
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readContent, err := ioutil.ReadAll(args[2].(io.Reader))
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require.NoError(t, err)
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assert.Equal(t, encodedContent, string(readContent))
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}).
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Return(int64(len(encodedContent)), nil)
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fileStore.On("PutObject", ctx, "media_sets/"+mediaSetID.String()+"/audio.raw", mock.Anything, "audio/raw").
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Run(func(args mock.Arguments) {
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n, err := io.Copy(io.Discard, args[2].(io.Reader))
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require.NoError(t, err)
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assert.Equal(t, inFixtureLen, n)
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}).
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Return(inFixtureLen, nil)
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fileStore.On("GetURL", ctx, "media_sets/"+mediaSetID.String()+"/audio.opus").Return(url, nil)
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defer fileStore.AssertExpectations(t)
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numBins := 10
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cmd := helperCommand(t, "ffmpeg -hide_banner -loglevel error -i - -f s16le -ar 48000 -acodec pcm_s16le -", inFixturePath, "", 0)
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service := media.NewMediaSetService(&mockStore, &youtubeClient, &fileStore, cmd, config.Config{}, zap.NewNop().Sugar())
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stream, err := service.GetPeaks(ctx, mediaSetID, numBins)
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require.NoError(t, err)
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assertConsumeStream(t, numBins, url, stream)
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})
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}
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func TestGetPeaksFromFileStore(t *testing.T) {
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const (
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inFixturePath = "testdata/tone-44100-stereo-int16-30000ms.raw"
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inFixtureLen = 5_292_000
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)
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ctx := context.Background()
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logger := zap.NewNop().Sugar()
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mediaSetID := uuid.New()
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mediaSet := store.MediaSet{
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ID: mediaSetID,
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AudioChannels: 2,
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AudioFrames: sql.NullInt64{Int64: 1_323_000, Valid: true},
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AudioRawS3Key: sql.NullString{String: "raw audio key", Valid: true},
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AudioRawS3UploadedAt: sql.NullTime{Time: time.Now(), Valid: true},
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AudioEncodedS3Key: sql.NullString{String: "encoded audio key", Valid: true},
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AudioEncodedS3UploadedAt: sql.NullTime{Time: time.Now(), Valid: true},
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}
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t.Run("NOK,ErrorFetchingMediaSet", func(t *testing.T) {
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var mockStore mocks.Store
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mockStore.On("GetMediaSet", mock.Anything, mediaSetID).Return(store.MediaSet{}, errors.New("db went boom"))
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service := media.NewMediaSetService(&mockStore, nil, nil, nil, config.Config{}, logger)
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_, err := service.GetPeaks(ctx, mediaSetID, 10)
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assert.EqualError(t, err, "error getting media set: db went boom")
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})
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t.Run("NOK,ErrorGettingObjectFromFileStore", func(t *testing.T) {
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var mockStore mocks.Store
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mockStore.On("GetMediaSet", mock.Anything, mediaSetID).Return(mediaSet, nil)
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defer mockStore.AssertExpectations(t)
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var fileStore mocks.FileStore
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fileStore.On("GetObject", mock.Anything, "raw audio key").Return(nil, errors.New("boom"))
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service := media.NewMediaSetService(&mockStore, nil, &fileStore, nil, config.Config{}, logger)
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_, err := service.GetPeaks(ctx, mediaSetID, 10)
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require.EqualError(t, err, "error getting object from file store: boom")
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})
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t.Run("NOK,ErrorGettingObjectURL", func(t *testing.T) {
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var mockStore mocks.Store
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mockStore.On("GetMediaSet", mock.Anything, mediaSetID).Return(mediaSet, nil)
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defer mockStore.AssertExpectations(t)
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var fileStore mocks.FileStore
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reader := fixtureReader(t, inFixturePath, inFixtureLen)
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fileStore.On("GetObject", mock.Anything, "raw audio key").Return(reader, nil)
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fileStore.On("GetURL", mock.Anything, "encoded audio key").Return("", errors.New("network error"))
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defer fileStore.AssertExpectations(t)
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service := media.NewMediaSetService(&mockStore, nil, &fileStore, nil, config.Config{}, logger)
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stream, err := service.GetPeaks(ctx, mediaSetID, 10)
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require.NoError(t, err)
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var hadError bool
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for {
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_, err := stream.Next()
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if err != nil {
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hadError = true
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assert.EqualError(t, err, "error waiting for progress: error generating object URL: network error")
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break
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}
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}
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assert.True(t, hadError)
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})
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t.Run("OK", func(t *testing.T) {
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var mockStore mocks.Store
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mockStore.On("GetMediaSet", mock.Anything, mediaSetID).Return(mediaSet, nil)
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defer mockStore.AssertExpectations(t)
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var fileStore mocks.FileStore
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url := "https://www.example.com/foo"
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reader := fixtureReader(t, inFixturePath, inFixtureLen)
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fileStore.On("GetObject", mock.Anything, "raw audio key").Return(reader, nil)
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fileStore.On("GetURL", mock.Anything, "encoded audio key").Return(url, nil)
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defer fileStore.AssertExpectations(t)
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numBins := 10
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service := media.NewMediaSetService(&mockStore, nil, &fileStore, nil, config.Config{}, logger)
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stream, err := service.GetPeaks(ctx, mediaSetID, numBins)
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require.NoError(t, err)
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assertConsumeStream(t, numBins, url, stream)
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})
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}
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// assertConsumeStream asserts that the stream produced by both the
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// from-youtube and from-filestore flows is identical.
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func assertConsumeStream(t *testing.T, expBins int, expURL string, stream media.GetPeaksProgressReader) {
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lastPeaks := make([]int16, 2) // stereo
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var (
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count int
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lastPercentComplete float32
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lastURL string
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)
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for {
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progress, err := stream.Next()
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if err != io.EOF {
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require.NoError(t, err)
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}
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assert.Len(t, progress.Peaks, 2)
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assert.GreaterOrEqual(t, progress.PercentComplete, lastPercentComplete)
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lastPercentComplete = progress.PercentComplete
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lastURL = progress.URL
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if err == io.EOF {
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break
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}
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// the fixture is a tone gradually increasing in amplitude:
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assert.Greater(t, progress.Peaks[0], lastPeaks[0])
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assert.Greater(t, progress.Peaks[1], lastPeaks[1])
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lastPeaks = progress.Peaks
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count++
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}
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assert.Equal(t, float32(100), lastPercentComplete)
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assert.Equal(t, []int16{32_767, 32_766}, lastPeaks)
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assert.Equal(t, expBins, count)
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assert.Equal(t, expURL, lastURL)
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}
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