public void SaveSpaceFail(bool differential)
{
using var writer = new StateWriter(Store, differential ? CheckpointKind.Differential : CheckpointKind.Full);
using var logger = new LoggingStateWriter(writer, TextWriter.Null);
Space.Save(logger);
}
public void LoggingStateWriter_Errors()
{
var sb = new StringBuilder();
using (var sw = new StringWriter(sb))
{
using var w = new MyWriter { Throw = true };
using var writer = new LoggingStateWriter(w, sw);
Assert.ThrowsException <NotImplementedException>(() => _ = writer.GetItemWriter("bar", "foo"));
Assert.ThrowsException <NotImplementedException>(() => writer.DeleteItem("bar", "foo"));
Assert.ThrowsException <NotImplementedException>(() => writer.Rollback());
Assert.ThrowsException <NotImplementedException>(() => writer.CommitAsync().GetAwaiter().GetResult());
Assert.ThrowsException <NotImplementedException>(() => writer.Dispose());
w.Throw = false;
}
var log = sb.ToString();
foreach (var entry in new[]
{
"GetItemWriter(bar, foo)/Start",
"GetItemWriter(bar, foo)/Error",
"GetItemWriter(bar, foo)/Stop",
"DeleteItem(bar, foo)/Start",
"DeleteItem(bar, foo)/Error",
"DeleteItem(bar, foo)/Stop",
"Rollback()/Start",
"Rollback()/Error",
"Rollback()/Stop",
"CommitAsync()/Start",
"CommitAsync()/Error",
"CommitAsync()/Stop",
"Dispose()/Start",
"Dispose()/Error",
"Dispose()/Stop",
})
{
Assert.IsTrue(log.Contains(entry), "Not found: '" + entry + "'");
}
}
public void LoggingStateWriter_Basics()
{
var sb = new StringBuilder();
using (var sw = new StringWriter(sb))
{
using var w = new MyWriter();
using var writer = new LoggingStateWriter(w, sw);
Assert.AreEqual(CheckpointKind.Full, writer.CheckpointKind);
var s = writer.GetItemWriter("bar", "foo");
Assert.IsNotNull(s);
writer.DeleteItem("bar", "foo");
writer.Rollback();
writer.CommitAsync().Wait();
}
var log = sb.ToString();
foreach (var entry in new[]
{
"GetItemWriter(bar, foo)/Start",
"GetItemWriter(bar, foo)/Stop",
"DeleteItem(bar, foo)/Start",
"DeleteItem(bar, foo)/Stop",
"Rollback()/Start",
"Rollback()/Stop",
"CommitAsync()/Start",
"CommitAsync()/Stop",
"Dispose()/Start",
"Dispose()/Stop",
})
{
Assert.IsTrue(log.Contains(entry), "Not found: '" + entry + "'");
}
}
public StateWriterOperation[] SaveSpace(bool differential)
{
//
// NB: Full checkpoints only make sense to be applied to an empty store.
//
if (!differential)
{
Store.Data.Clear();
}
using var writer = new StateWriter(Store, differential ? CheckpointKind.Differential : CheckpointKind.Full);
using var logger = new LoggingStateWriter(writer, TextWriter.Null);
Space.Save(logger);
logger.CommitAsync().GetAwaiter().GetResult();
Space.OnSaved();
return(writer.GetLog());
}
