public async Task Auto_DetectChanges_for_SaveChanges_can_be_switched_off(bool async)
{
var provider = InMemoryTestHelpers.Instance.CreateServiceProvider();
using (var context = new ButTheHedgehogContext(provider))
{
context.ChangeTracker.AutoDetectChangesEnabled = false;
Assert.False(context.ChangeTracker.AutoDetectChangesEnabled);
var product = context.Add(
new Product
{
Id = 1,
Name = "Little Hedgehogs"
}).Entity;
if (async)
{
await context.SaveChangesAsync();
}
else
{
context.SaveChanges();
}
product.Name = "Cracked Cookies";
if (async)
{
await context.SaveChangesAsync();
}
else
{
context.SaveChanges();
}
}
using (var context = new ButTheHedgehogContext(provider))
{
Assert.Equal("Little Hedgehogs", context.Products.Single().Name);
}
}
public async Task SaveChangesAsync_with_canceled_token()
{
var loggerFactory = new ListLoggerFactory();
var provider =
InMemoryTestHelpers.Instance.CreateServiceProvider(
new ServiceCollection().AddSingleton <ILoggerFactory>(loggerFactory));
using var context = new ButTheHedgehogContext(provider);
context.Products.Add(new Product());
await Assert.ThrowsAnyAsync <OperationCanceledException>(() => context.SaveChangesAsync(new CancellationToken(canceled: true)));
Assert.Contains(CoreEventId.SaveChangesCanceled, loggerFactory.Log.Select(l => l.Id));
Assert.DoesNotContain(CoreEventId.SaveChangesFailed, loggerFactory.Log.Select(l => l.Id));
}
public async Task Auto_DetectChanges_for_SaveChanges_can_be_switched_off(bool async)
{
var provider = TestHelpers.Instance.CreateServiceProvider();
using (var context = new ButTheHedgehogContext(provider))
{
context.ChangeTracker.AutoDetectChangesEnabled = false;
Assert.False(context.ChangeTracker.AutoDetectChangesEnabled);
var product = context.Attach(new Product { Id = 1, Name = "Little Hedgehogs" }, behavior: GraphBehavior.SingleObject).Entity;
product.Name = "Cracked Cookies";
if (async)
{
await context.SaveChangesAsync();
}
else
{
context.SaveChanges();
}
}
using (var context = new ButTheHedgehogContext(provider))
{
Assert.Empty(context.Products);
}
}
public async Task SaveChanges_calls_DetectChanges_by_default(bool async)
{
var provider = TestHelpers.Instance.CreateServiceProvider();
using (var context = new ButTheHedgehogContext(provider))
{
Assert.True(context.ChangeTracker.AutoDetectChangesEnabled);
var product = context.Attach(new Product { Id = 1, Name = "Little Hedgehogs" }, behavior: GraphBehavior.SingleObject).Entity;
product.Name = "Cracked Cookies";
if (async)
{
await context.SaveChangesAsync();
}
else
{
context.SaveChanges();
}
}
using (var context = new ButTheHedgehogContext(provider))
{
Assert.Equal("Cracked Cookies", context.Products.Single().Name);
}
}