public async Task Counts_when_SaveChanges_is_called(bool async)
{
TotalSaveChanges = 0;
for (var i = 1; i <= 3; i++)
{
using var context = new SomeDbContext();
context.Add(new Foo());
_ = async ? await context.SaveChangesAsync() : context.SaveChanges();
Assert.Equal(i, TotalSaveChanges);
}
}
public async Task TestTransaction()
{
await using var transaction = await dbContext.Database.BeginTransactionAsync(IsolationLevel.RepeatableRead, _cancel.Token);
var entities = await dbContext.SomeEntities.ToListAsync(_cancel.Token);
entities.ShouldBeEmpty();
dbContext.SomeEntities.Add(new SomeEntity
{
Id = 1,
Name = "srthsrt"
});
await dbContext.SaveChangesAsync(_cancel.Token);
await transaction.CommitAsync(_cancel.Token);
}
public async Task Counts_when_DbUpdateConcurrencyException_is_thrown(bool async)
{
TotalOptimisticConcurrencyFailures = 0;
for (var i = 1; i <= 3; i++)
{
using var context = new SomeDbContext();
var entity = new Foo();
context.Add(entity);
context.SaveChanges();
using (var innerContext = new SomeDbContext())
{
innerContext.Foos.Find(entity.Id).Token = 1;
innerContext.SaveChanges();
}
entity.Token = 2;
if (async)
{
await Assert.ThrowsAsync <DbUpdateConcurrencyException>(async() => await context.SaveChangesAsync());
}
else
{
Assert.Throws <DbUpdateConcurrencyException>(() => context.SaveChanges());
}
Assert.Equal(i, TotalOptimisticConcurrencyFailures);
}
}