private async Task Task_DownloadFileAsync(InvalidFileModel fileModel)
{
try
{
using (WebClient webClient = new WebClient())
{
if (!useCustomNumbering)
{
await webClient.DownloadFileTaskAsync(new Uri(fileModel.Url), $@"{folderPathToSaveTo}\{TextHelper.GetImageNameFromLink(fileModel.Url)}");
}
else
{
await webClient.DownloadFileTaskAsync(new Uri(fileModel.Url), $@"{folderPathToSaveTo}\{string.Format("{0:D3}", fileModel.Index)}{TextHelper.GetImageExtensionFromLink(fileModel.Url)}");
}
//remove model from bag
//concurrentListOfInvalidUrls.FirstOrDefault(x => x.Index == fileModel.Index).
concurrentListOfUrls.TryRemove(fileModel.Index, out string value);
}
}
catch (Exception)
{
//transform data
Enum.TryParse(TextHelper.GetImageExtensionFromLink(fileModel.Url), out Enums.FileExtensions matchingEnum);
concurrentListOfUrls[fileModel.Index] = TextHelper.ChangeFileExtension(fileModel.Url, (matchingEnum++).ToString());
}
}
public void TestWriteException()
{
var errModel1 = new FileModel
{
utf8StrField = "",
asciiStrField = "abcdefghi",
};
using (var stream = File.OpenWrite(Path.GetTempFileName()))
{
var exception = Assert.ThrowsException <InvalidDataException>(() =>
{
var writer = new FixedLengthFileWriter <FileModel>(stream);
writer.Write(errModel1);
});
Assert.IsTrue(exception.Message.Contains("asciiStrField"));
Assert.IsTrue(exception.Message.Contains("exceeds"));
}
var errModel2 = new FileModel
{
asciiStrField = "abc",
};
using (var stream = File.OpenWrite(Path.GetTempFileName()))
{
var exception = Assert.ThrowsException <InvalidDataException>(() =>
{
var writer = new FixedLengthFileWriter <FileModel>(stream);
writer.Write(errModel2);
});
Assert.IsTrue(exception.Message.Contains("utf8StrField"));
Assert.IsTrue(exception.Message.Contains("null"));
}
var errModel3 = new InvalidFileModel
{
intField = 1,
};
using (var stream = File.OpenWrite(Path.GetTempFileName()))
{
var exception = Assert.ThrowsException <InvalidDataException>(() =>
{
var writer = new FixedLengthFileWriter <InvalidFileModel>(stream);
writer.Write(errModel3);
});
Assert.IsTrue(exception.Message.Contains("intField"));
Assert.IsTrue(exception.Message.Contains("exceeds"));
}
var errModel4 = new InvalidFileModel2
{
strField = "",
};
using (var stream = File.OpenWrite(Path.GetTempFileName()))
{
var exception = Assert.ThrowsException <InvalidDataException>(() =>
{
var writer = new FixedLengthFileWriter <InvalidFileModel2>(stream);
writer.Write(errModel4);
});
Assert.IsTrue(exception.Message.Contains("strField"));
Assert.IsTrue(exception.Message.Contains("Should specific length of string"));
}
var errModel5 = new InvalidFileModel3
{
exceptionField = new Exception(),
};
using (var stream = File.OpenWrite(Path.GetTempFileName()))
{
Assert.ThrowsException <NotSupportedException>(() =>
{
var writer = new FixedLengthFileWriter <InvalidFileModel3>(stream);
writer.Write(errModel5);
});
}
}
