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 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);
}
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();
}
protected async Task HandleValidSubmit()
{
if (BrowserFile != null)
{
Logger.LogWarning("Upload using InputFile + HttpClient.");
var buffer = new byte[BrowserFile.Size];
await BrowserFile.OpenReadStream().ReadAsync(buffer);
File.FileName = BrowserFile.Name;
var res = await FileService.UploadFile(File, buffer);
NavManager.NavigateTo($"/files/edit/{res.Id}");
}
else
{
Logger.LogWarning("Upload using JavaScript Interop.");
var dotNetObj = DotNetObjectReference.Create(this);
await JSRuntime.InvokeVoidAsync("interop.uploadFile", FileService.GetUploadUrl(), await FileService.GetAccessToken(), File, dotNetObj);
}
}