[InlineData(5, 0)] // default out of valid range
public async void GetImage_DefaultVideoStreams_ReturnsCorrectStreamImage(int defaultIndex, int targetIndex)
{
var input = new Movie {
DefaultVideoStreamIndex = defaultIndex
};
string targetPath = "path.jpg";
var mediaStreams = new List <MediaStream>();
var mediaEncoder = new Mock <IMediaEncoder>(MockBehavior.Strict);
for (int i = 0; i <= targetIndex; i++)
{
var mediaStream = new MediaStream {
Type = MediaStreamType.Video, Index = i
};
mediaStreams.Add(mediaStream);
var path = i == targetIndex ? targetPath : "wrong stream called!";
mediaEncoder.Setup(encoder => encoder.ExtractVideoImage(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <MediaSourceInfo>(), mediaStream, It.IsAny <Video3DFormat?>(), It.IsAny <TimeSpan?>(), It.IsAny <CancellationToken>()))
.Returns(Task.FromResult(path));
}
var defaultStream = defaultIndex < mediaStreams.Count ? mediaStreams[targetIndex] : null;
var mediaSourceManager = GetMediaSourceManager(input, defaultStream, mediaStreams);
var videoImageProvider = new VideoImageProvider(mediaSourceManager, mediaEncoder.Object, new NullLogger <VideoImageProvider>());
var actual = await videoImageProvider.GetImage(input, ImageType.Primary, CancellationToken.None);
Assert.NotNull(actual);
Assert.True(actual.HasImage);
Assert.Equal(targetPath, actual.Path);
Assert.Equal(ImageFormat.Jpg, actual.Format);
}
[InlineData(500, 50)] // calculated time
public async void GetImage_TimeSpan_SelectsCorrectTime(int?runTimeSeconds, long expectedSeconds)
{
MediaStream targetStream = new() { Type = MediaStreamType.Video, Index = 0 };
var input = new Movie
{
DefaultVideoStreamIndex = 0,
RunTimeTicks = runTimeSeconds * TimeSpan.TicksPerSecond
};
var mediaSourceManager = GetMediaSourceManager(input, targetStream, new List <MediaStream> {
targetStream
});
// use a callback to catch the actual value
// provides more information on failure than verifying a specific input was called on the mock
TimeSpan?actualTimeSpan = null;
var mediaEncoder = new Mock <IMediaEncoder>(MockBehavior.Strict);
mediaEncoder.Setup(encoder => encoder.ExtractVideoImage(It.IsAny <string>(), It.IsAny <string>(), It.IsAny <MediaSourceInfo>(), It.IsAny <MediaStream>(), It.IsAny <Video3DFormat?>(), It.IsAny <TimeSpan?>(), CancellationToken.None))
.Callback <string, string, MediaSourceInfo, MediaStream, Video3DFormat?, TimeSpan?, CancellationToken>((_, _, _, _, _, timeSpan, _) => actualTimeSpan = timeSpan)
.Returns(Task.FromResult("path"));
var videoImageProvider = new VideoImageProvider(mediaSourceManager, mediaEncoder.Object, new NullLogger <VideoImageProvider>());
// not testing return, just verifying what gets requested for time span
await videoImageProvider.GetImage(input, ImageType.Primary, CancellationToken.None);
Assert.Equal(TimeSpan.FromSeconds(expectedSeconds), actualTimeSpan);
}
public async void GetImage_UnsupportedInput_ReturnsNoImage(Video input)
{
var mediaSourceManager = GetMediaSourceManager(input, null, new List <MediaStream>());
var videoImageProvider = new VideoImageProvider(mediaSourceManager, Mock.Of <IMediaEncoder>(), new NullLogger <VideoImageProvider>());
var actual = await videoImageProvider.GetImage(input, ImageType.Primary, CancellationToken.None);
Assert.NotNull(actual);
Assert.False(actual.HasImage);
}