public async Task TestMultipleThreads()
{
// This validates a bug where flushing from one thread while writing from another
// would cause an exception.
string content = null;
Func <string, CancellationToken, Task> fp = (x, _) => { content = x; return(Task.FromResult(0)); };
UpdateOutputLogCommand writer = UpdateOutputLogCommand.Create(new Mock <IStorageBlockBlob>().Object, fp);
var tw = writer.Output;
bool writeDone = false;
// Start a Task to flush
Task flushTask = Task.Run(() =>
{
while (!writeDone)
{
writer.TryExecute();
}
});
// Start a Task to write
Task writeTask = Task.Run(() =>
{
for (int i = 0; i < 10000000; i++)
{
tw.WriteLine(string.Empty);
}
writeDone = true;
});
await flushTask;
await writeTask;
}
public void TestIncrementalWriter()
{
string content = null;
Func <string, CancellationToken, Task> fp = (x, _) =>
{
content = x;
return(Task.FromResult(0));
};
UpdateOutputLogCommand writer = UpdateOutputLogCommand.Create(new Mock <IStorageBlockBlob>().Object, fp);
var tw = writer.Output;
tw.Write("1");
// Ensure content not yet written
Assert.Equal(null, content);
writer.TryExecute();
Assert.Equal("1", content);
tw.Write("2");
writer.TryExecute();
Assert.Equal("12", content);
tw.Write("3");
writer.SaveAndClose();
Assert.Equal("123", content);
}
public static void SaveAndClose(this UpdateOutputLogCommand command)
{
if (command == null)
{
throw new ArgumentNullException("command");
}
command.SaveAndCloseAsync(CancellationToken.None).GetAwaiter().GetResult();
}
public static bool TryExecute(this UpdateOutputLogCommand command)
{
if (command == null)
{
throw new ArgumentNullException("command");
}
return(command.TryExecuteAsync(CancellationToken.None).GetAwaiter().GetResult());
}
