public void Detect_file_change()
{
const string FILENAME = "test.txt";
File.WriteAllText(FILENAME, "a");
var sut = new Filesystem("template.cs");
var timestamp = File.GetLastWriteTime(FILENAME);
var result = sut.FileHasChanged(FILENAME, ref timestamp);
Assert.IsFalse(result);
timestamp = timestamp.Subtract(TimeSpan.FromSeconds(5));
result = sut.FileHasChanged(FILENAME, ref timestamp);
Assert.IsTrue(result);
}
private void PollFileForChanges(string filename, Action onChanged)
{
var fileTimestamp = DateTime.MinValue;
_tim.Start(() => {
if (_fs.FileHasChanged(filename, ref fileTimestamp))
{
onChanged();
}
});
_tim.Wait();
}