public void TestMerge6()
{
var source0 = new InMemoryLogSource();
var source1 = new InMemoryLogSource();
var merged = new MergedLogSource(_taskScheduler, TimeSpan.Zero, source0, source1);
var entries = Listen(merged);
var modifications = ListenToChanges(merged, 1);
merged.OnLogFileModified(source0, LogSourceModification.Reset());
merged.OnLogFileModified(source0, LogSourceModification.Reset());
merged.OnLogFileModified(source0, LogSourceModification.Reset());
merged.OnLogFileModified(source0, LogSourceModification.Reset());
merged.OnLogFileModified(source0, LogSourceModification.Reset());
merged.OnLogFileModified(source0, LogSourceModification.Reset());
merged.OnLogFileModified(source1, LogSourceModification.Reset());
DateTime timestamp = DateTime.Now;
source1.AddEntry("Hello World", LevelFlags.Info, timestamp);
_taskScheduler.RunOnce();
merged.GetProperty(Core.Properties.PercentageProcessed).Should().Be(Percentage.HundredPercent);
entries.Count.Should().Be(1);
entries[0].Index.Should().Be(0);
entries[0].LogEntryIndex.Should().Be(0);
entries[0].GetValue(Core.Columns.SourceId).Should().Be(new LogEntrySourceId(1));
entries[0].RawContent.Should().Be("Hello World");
entries[0].LogLevel.Should().Be(LevelFlags.Info);
entries[0].Timestamp.Should().Be(timestamp);
int count = modifications.Count;
modifications.ElementAt(count - 2).Should().Be(LogSourceModification.Reset());
modifications.ElementAt(count - 1).Should().Be(LogSourceModification.Appended(0, 1));
}