public static async Task AppendText(this IFileInfo fileInfo, string text)
{
using (var writer = fileInfo.AppendText())
{
await writer.WriteAsync(text);
}
}
public static IFileInfo CreateSteamAppIdFile(IFileSystem fileSystem)
{
IFileInfo steamAppIdFile = fileSystem.FileInfo.FromFileName("steam_appid.txt");
StreamWriter streamWriter = steamAppIdFile.AppendText();
streamWriter.WriteLine("32470");
streamWriter.Close();
return(steamAppIdFile);
}
private void When_appending_to_file_as_text_it_must_succeed()
{
// Arrange
const string path = @"C:\some\file.txt";
IFileSystem fileSystem = new FakeFileSystemBuilder()
.IncludingTextFile(path, DefaultContents)
.Build();
IFileInfo info = fileSystem.ConstructFileInfo(path);
// Act
using (StreamWriter writer = info.AppendText())
{
// Assert
writer.BaseStream.CanRead.Should().BeFalse();
writer.BaseStream.CanWrite.Should().BeTrue();
}
}