public async Task InitializesAtLastSavedValueAsync()
{
this.tipsManager.Initialize(this.mainChainHeaders.Last());
var tipProvider = new testTipProvider();
this.tipsManager.RegisterTipProvider(tipProvider);
this.tipsManager.CommitTipPersisted(tipProvider, this.mainChainHeaders[10]);
Assert.Equal(this.mainChainHeaders[10], this.tipsManager.GetLastCommonTip());
// Give it some time to save tip in bg.
await Task.Delay(500);
this.tipsManager.Dispose();
var newTipsManager = new TipsManager(this.keyValueRepo, this.loggerFactory);
newTipsManager.Initialize(this.mainChainHeaders.Last());
Assert.Equal(this.mainChainHeaders[10], newTipsManager.GetLastCommonTip());
}