public static async Task Appending()
{
IPersistentState auditTrail = new InMemoryAuditTrail();
Equal(0, auditTrail.GetLastIndex(false));
Equal(0, auditTrail.GetLastIndex(true));
var entry1 = new TestLogEntry("SET X=0")
{
Term = 1
};
var entry2 = new TestLogEntry("SET Y=0")
{
Term = 2
};
Equal(1, await auditTrail.AppendAsync(new LogEntryList(entry1, entry2)));
Equal(0, auditTrail.GetLastIndex(true));
Equal(2, auditTrail.GetLastIndex(false));
Func <IReadOnlyList <IRaftLogEntry>, long?, ValueTask> checker = (entries, snapshotIndex) =>
{
Equal(2, entries.Count);
var e1 = (TestLogEntry)entries[0];
var e2 = (TestLogEntry)entries[1];
Equal("SET X=0", e1.Content);
Equal("SET Y=0", e2.Content);
return(default);
public static async Task RaftPersistentState()
{
IPersistentState auditTrail = new InMemoryAuditTrail();
NotNull(auditTrail.First);
Equal(0, auditTrail.First.Term);
await auditTrail.UpdateTermAsync(10);
Equal(10, auditTrail.Term);
await auditTrail.IncrementTermAsync();
Equal(11, auditTrail.Term);
}
public static async Task Appending()
{
IPersistentState auditTrail = new InMemoryAuditTrail();
Equal(0, auditTrail.GetLastIndex(false));
Equal(0, auditTrail.GetLastIndex(true));
var entry1 = new LogEntry("SET X=0")
{
Term = 1
};
var entry2 = new LogEntry("SET Y=0")
{
Term = 2
};
Equal(1, await auditTrail.AppendAsync(new[] { entry1, entry2 }));
Equal(0, auditTrail.GetLastIndex(true));
Equal(2, auditTrail.GetLastIndex(false));
var entries = await auditTrail.GetEntriesAsync(1, 2);
Equal(2, entries.Count);
entry1 = (LogEntry)entries[0];
entry2 = (LogEntry)entries[1];
Equal("SET X=0", entry1.Content);
Equal("SET Y=0", entry2.Content);
//now replace entry at index 2 with new entry
entry2 = new LogEntry("ADD")
{
Term = 3
};
Equal(2, await auditTrail.AppendAsync(new[] { entry2 }, 2));
entries = await auditTrail.GetEntriesAsync(1, 2);
Equal(2, entries.Count);
entry1 = (LogEntry)entries[0];
entry2 = (LogEntry)entries[1];
Equal("SET X=0", entry1.Content);
Equal("ADD", entry2.Content);
Equal(2, auditTrail.GetLastIndex(false));
Equal(0, auditTrail.GetLastIndex(true));
//commit all entries
using (var detector = new CommitDetector())
{
auditTrail.Committed += detector.OnCommitted;
Equal(2, await auditTrail.CommitAsync(1));
await detector.Wait();
Equal(2, auditTrail.GetLastIndex(true));
Equal(2, detector.Count);
}
}
private void Invoke(InMemoryAuditTrail auditTrail) => auditTrail?.Committed?.Invoke(auditTrail, startIndex, count);
