public async Task TestSaveChangesAsync_CheckConcurrency_MutlipleEntitiesWithEqualIds()
{
using (ShimsContext.Create())
{
var exceptionCaught = false;
var concurrentEntity1 = new ConcurrentEntity
{
Id = 1,
};
var concurrentEntity2 = new ConcurrentEntity
{
Id = 1,
};
var shimEntry1 = new System.Data.Entity.Infrastructure.Fakes.ShimDbEntityEntry
{
EntityGet = () =>
{
return(concurrentEntity1);
}
};
var shimEntry2 = new System.Data.Entity.Infrastructure.Fakes.ShimDbEntityEntry
{
EntityGet = () =>
{
return(concurrentEntity2);
}
};
try
{
System.Data.Entity.Infrastructure.Fakes.ShimDbUpdateException.AllInstances.EntriesGet = (exc) =>
{
var list = new List <DbEntityEntry> {
shimEntry1, shimEntry2
};
return(list);
};
System.Data.Entity.Fakes.ShimDbContext.AllInstances.SaveChangesAsync = (c) =>
{
throw new DbUpdateConcurrencyException();
};
var service = new DbContextService <ConcurrentDbContext>(new ConcurrentDbContext());
await service.SaveChangesAsync();
}
catch (NotSupportedException e)
{
exceptionCaught = true;
}
Assert.IsTrue(exceptionCaught);
}
}
public async Task TestSaveChangesAsync_CheckConcurrency()
{
using (ShimsContext.Create())
{
var exceptionCaught = false;
var concurrentEntity = new ConcurrentEntity
{
Id = 1,
};
var shimEntry = new System.Data.Entity.Infrastructure.Fakes.ShimDbEntityEntry
{
EntityGet = () =>
{
return(concurrentEntity);
}
};
try
{
System.Data.Entity.Infrastructure.Fakes.ShimDbUpdateException.AllInstances.EntriesGet = (exc) =>
{
var list = new List <DbEntityEntry> {
shimEntry
};
return(list);
};
System.Data.Entity.Fakes.ShimDbContext.AllInstances.SaveChangesAsync = (c) =>
{
throw new DbUpdateConcurrencyException();
};
var service = new DbContextService <ConcurrentDbContext>(new ConcurrentDbContext());
await service.SaveChangesAsync();
}
catch (EcaDbUpdateConcurrencyException e)
{
exceptionCaught = true;
var entries = e.Entries;
Assert.AreEqual(1, entries.Count());
Assert.AreEqual(1, e.ConcurrentEntities.Count());
Assert.IsTrue(Object.ReferenceEquals(concurrentEntity, e.ConcurrentEntities.First()));
}
Assert.IsTrue(exceptionCaught);
}
}
