public void EditingConcurrent()
{
var entityA = GetItemUpdated(2, "A");
var entityB = GetItemUpdated(2, "B");
using (var db = new WisperoDbContext())
{
var dataService = new KnowledgeBaseData(db);
Assert.IsTrue(entityA.RowVersion.SequenceEqual(entityB.RowVersion));
//Updating EntityA.
dataService.Edit(entityA);
dataService.CommitChanges();
var recentlyUpdated = dataService.Get(2);
Assert.IsNotNull(recentlyUpdated.Query);
Assert.IsTrue(recentlyUpdated.Query == entityA.Query);
//Sleep to simulate a delay between updates.
System.Threading.Thread.Sleep(10);
//Updating EntityB.
//It should failed because the version kept memory has changes on the source because of EntityA.
try
{
dataService.Edit(entityB);
dataService.CommitChanges();
Assert.Fail();
}
catch (DbUpdateConcurrencyException)
{
}
}
}
public void Getting()
{
using (var db = new WisperoDbContext())
{
var dataService = new KnowledgeBaseData(db);
var retValue = dataService.Get(2);
Assert.IsNotNull(retValue);
Assert.IsTrue(retValue.Id == 2);
}
}
public void Editing()
{
using (var db = new WisperoDbContext())
{
var dataService = new KnowledgeBaseData(db);
var currentEntity = dataService.Get(2);
//Making updates
currentEntity.Answer = "NewAnswer2";
currentEntity.Query = "NewQuery2";
currentEntity.LastUpdateOn = DateTime.Now;
currentEntity.Tags = "NewTags";
dataService.Edit(currentEntity);
dataService.CommitChanges();
var recentlyUpdated = dataService.Get(2);
Assert.IsNotNull(recentlyUpdated);
Assert.IsTrue(recentlyUpdated.Query == "NewQuery2");
}
}
public void Deleting()
{
using (var db = new WisperoDbContext())
{
var dataService = new KnowledgeBaseData(db);
dataService.Delete(1);
dataService.CommitChanges();
var recentlyAdded = dataService.Get(1);
Assert.IsNull(recentlyAdded);
}
}
private KnowledgeBaseItem GetItemUpdated(int id, string postFix)
{
using (var db = new WisperoDbContext())
{
var dataService = new KnowledgeBaseData(db);
var currentEntity = dataService.Get(id);
//Making updates
currentEntity.Answer = "NewAnswer" + postFix;
currentEntity.Query = "NewQuery" + postFix;
currentEntity.LastUpdateOn = DateTime.Now;
return(currentEntity);
}
}
