public void WebDownloader_DownLoad()
{
// ARRANGE
using var writer = new StringWriter();
Console.SetOut(writer);
var webClientFactory = new TestableWebClientFactory();
// ACT
var downloader = new WebDownloader(webClientFactory);
downloader.DownLoad("some web file", "myfile.csv");
webClientFactory.TestClient
.InvokeDownloadProgressChanged(10, 1024)
.InvokeDownloadProgressChanged(100, 1024 * 100)
.InvokeDownloadCompleted();
writer.Flush();// Ensure writer is flushed
// ASSERT
var expectedOutput = new[]
{
"Downloading some web file...",
"Downloading...10% complete (1,024 bytes)",
"Downloading...100% complete (102,400 bytes)",
"Downloaded to myfile.csv ",
string.Empty
};
var actualConsoleLines = writer.ToString().Split(Environment.NewLine);
CollectionAssert.AreEqual(expectedOutput, actualConsoleLines);
}