public void File_CanSupplySingle()
{
var file = new BrowserFile();
var instance = new InputFileChangeEventArgs(new[] { file });
Assert.Same(file, instance.File);
}
public void OpenReadStream_ReturnsStreamWhoseDisposalReleasesTheJSObject()
{
// Arrange: JS runtime that always returns a specific mock IJSStreamReference
var jsRuntime = new Mock <IJSRuntime>(MockBehavior.Strict);
var jsStreamReference = new Mock <IJSStreamReference>();
jsRuntime.Setup(x => x.InvokeAsync <IJSStreamReference>(It.IsAny <string>(), It.IsAny <CancellationToken>(), It.IsAny <object[]>()))
.Returns(ValueTask.FromResult(jsStreamReference.Object));
// Arrange: InputFile
var inputFile = new InputFile {
JSRuntime = jsRuntime.Object
};
var file = new BrowserFile {
Owner = inputFile, Size = 5
};
var stream = file.OpenReadStream();
// Assert 1: IJSStreamReference isn't disposed yet
jsStreamReference.Verify(x => x.DisposeAsync(), Times.Never);
// Act
_ = stream.DisposeAsync();
// Assert: IJSStreamReference is disposed now
jsStreamReference.Verify(x => x.DisposeAsync());
}
public void SetSize_ThrowsIfSizeIsNegative()
{
// Arrange
var file = new BrowserFile();
// Act & Assert
var ex = Assert.Throws <ArgumentOutOfRangeException>(() => file.Size = -7);
}
internal async ValueTask <IBrowserFile> ConvertToImageFileAsync(BrowserFile file, string format, int maxWidth, int maxHeight)
{
var imageFile = await JSRuntime.InvokeAsync <BrowserFile>(InputFileInterop.ToImageFile, _inputFileElement, file.Id, format, maxWidth, maxHeight);
imageFile.Owner = this;
return(imageFile);
}
public void OpenReadStream_ThrowsIfFileSizeIsLargerThanAllowedSize()
{
// Arrange
var file = new BrowserFile {
Size = 100
};
// Act & Assert
var ex = Assert.Throws <IOException>(() => file.OpenReadStream(80));
Assert.Equal("Supplied file with size 100 bytes exceeds the maximum of 80 bytes.", ex.Message);
}
internal async ValueTask <IBrowserFile> ConvertToImageFileAsync(BrowserFile file, string format, int maxWidth, int maxHeight)
{
var imageFile = await JSRuntime.InvokeAsync <BrowserFile>(InputFileInterop.ToImageFile, _inputFileElement, file.Id, format, maxWidth, maxHeight);
if (imageFile is null)
{
throw new InvalidOperationException("ToImageFile returned an unexpected null result.");
}
imageFile.Owner = this;
return(imageFile);
}
public BrowserFileStream(
IJSRuntime jsRuntime,
ElementReference inputFileElement,
BrowserFile file,
long maxAllowedSize,
CancellationToken cancellationToken)
{
_jsRuntime = jsRuntime;
_inputFileElement = inputFileElement;
_file = file;
_maxAllowedSize = maxAllowedSize;
_openReadStreamCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
OpenReadStreamTask = OpenReadStreamAsync(_openReadStreamCts.Token);
}
public RemoteBrowserFileStream(
IJSRuntime jsRuntime,
ElementReference inputFileElement,
BrowserFile file,
RemoteBrowserFileStreamOptions options,
CancellationToken cancellationToken)
: base(file)
{
_jsRuntime = jsRuntime;
_inputFileElement = inputFileElement;
_maxSegmentSize = options.MaxSegmentSize;
_segmentFetchTimeout = options.SegmentFetchTimeout;
var pipe = new Pipe(new PipeOptions(pauseWriterThreshold: options.MaxBufferSize, resumeWriterThreshold: options.MaxBufferSize));
_pipeReader = pipe.Reader;
_fillBufferCts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
_ = FillBuffer(pipe.Writer, _fillBufferCts.Token);
}
public async Task OpenReadStream_ReturnsStreamWhoseDisposalReleasesTheJSObject_ToleratesDisposalException()
{
// Arrange: JS runtime that always returns a specific mock IJSStreamReference whose disposal throws
var jsRuntime = new Mock <IJSRuntime>(MockBehavior.Strict);
var jsStreamReference = new Mock <IJSStreamReference>();
jsRuntime.Setup(x => x.InvokeAsync <IJSStreamReference>(It.IsAny <string>(), It.IsAny <CancellationToken>(), It.IsAny <object[]>()))
.Returns(ValueTask.FromResult(jsStreamReference.Object));
jsStreamReference.Setup(x => x.DisposeAsync()).Throws(new InvalidTimeZoneException());
// Arrange: InputFile
var inputFile = new InputFile {
JSRuntime = jsRuntime.Object
};
var file = new BrowserFile {
Owner = inputFile, Size = 5
};
var stream = file.OpenReadStream();
// Act/Assert. Not throwing is success here.
await stream.DisposeAsync();
}
internal Stream OpenReadStream(BrowserFile file, CancellationToken cancellationToken) => _jsUnmarshalledRuntime != null ? (Stream) new SharedBrowserFileStream(JSRuntime, _jsUnmarshalledRuntime, _inputFileElement, file) : new RemoteBrowserFileStream(JSRuntime, _inputFileElement, file, Options.Value, cancellationToken);
protected BrowserFileStream(BrowserFile file)
{
File = file;
}
public SharedBrowserFileStream(IJSRuntime jsRuntime, IJSUnmarshalledRuntime jsUnmarshalledRuntime, ElementReference inputFileElement, BrowserFile file)
: base(file)
{
_jsRuntime = jsRuntime;
_jsUnmarshalledRuntime = jsUnmarshalledRuntime;
_inputFileElement = inputFileElement;
}