public async Task SaveChanges_calls_DetectChanges_by_default(bool async)
{
var provider = InMemoryTestHelpers.Instance.CreateServiceProvider();
using (var context = new ButTheHedgehogContext(provider))
{
Assert.True(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("Cracked Cookies", context.Products.Single().Name);
}
}
public void Entry_calls_DetectChanges_by_default(bool useGenericOverload)
{
using var context = new ButTheHedgehogContext(InMemoryTestHelpers.Instance.CreateServiceProvider());
var entry = context.Attach(
new Product {
Id = 1, Name = "Little Hedgehogs"
});
entry.Entity.Name = "Cracked Cookies";
Assert.Equal(EntityState.Unchanged, entry.State);
if (useGenericOverload)
{
context.Entry(entry.Entity);
}
else
{
context.Entry((object)entry.Entity);
}
Assert.Equal(EntityState.Modified, entry.State);
}
public void Local_does_not_call_DetectChanges_when_disabled()
{
var provider =
InMemoryTestHelpers.Instance.CreateServiceProvider(
new ServiceCollection().AddScoped <IChangeDetector, ChangeDetectorProxy>());
using (var context = new ButTheHedgehogContext(provider))
{
var changeDetector = (ChangeDetectorProxy)context.GetService <IChangeDetector>();
context.ChangeTracker.AutoDetectChangesEnabled = false;
changeDetector.DetectChangesCalled = false;
var entry = context.Attach(
new Product
{
Id = 1,
Name = "Little Hedgehogs"
});
entry.Entity.Name = "Big Hedgehogs";
Assert.False(changeDetector.DetectChangesCalled);
var _ = context.Set <Product>().Local;
Assert.False(changeDetector.DetectChangesCalled);
Assert.Equal(EntityState.Unchanged, entry.State);
context.ChangeTracker.DetectChanges();
Assert.True(changeDetector.DetectChangesCalled);
Assert.Equal(EntityState.Modified, entry.State);
}
}
public void Add_Attach_Remove_Update_do_not_call_DetectChanges()
{
var provider = TestHelpers.Instance.CreateServiceProvider(new ServiceCollection().AddScoped<IChangeDetector, ChangeDetectorProxy>());
using (var context = new ButTheHedgehogContext(provider))
{
var changeDetector = (ChangeDetectorProxy)context.GetService<IChangeDetector>();
var id = 1;
changeDetector.DetectChangesCalled = false;
context.Add(new Product { Id = id++, Name = "Little Hedgehogs" });
context.Add((object)new Product { Id = id++, Name = "Little Hedgehogs" });
context.AddRange(new Product { Id = id++, Name = "Little Hedgehogs" });
context.AddRange(new Product { Id = id++, Name = "Little Hedgehogs" });
context.AddRange(new List<Product> { new Product { Id = id++, Name = "Little Hedgehogs" } });
context.AddRange(new List<object> { new Product { Id = id++, Name = "Little Hedgehogs" } });
context.Attach(new Product { Id = id++, Name = "Little Hedgehogs" });
context.Attach((object)new Product { Id = id++, Name = "Little Hedgehogs" });
context.AttachRange(new Product { Id = id++, Name = "Little Hedgehogs" });
context.AttachRange(new Product { Id = id++, Name = "Little Hedgehogs" });
context.AttachRange(new List<Product> { new Product { Id = id++, Name = "Little Hedgehogs" } });
context.AttachRange(new List<object> { new Product { Id = id++, Name = "Little Hedgehogs" } });
context.Update(new Product { Id = id++, Name = "Little Hedgehogs" });
context.Update((object)new Product { Id = id++, Name = "Little Hedgehogs" });
context.UpdateRange(new Product { Id = id++, Name = "Little Hedgehogs" });
context.UpdateRange(new Product { Id = id++, Name = "Little Hedgehogs" });
context.UpdateRange(new List<Product> { new Product { Id = id++, Name = "Little Hedgehogs" } });
context.UpdateRange(new List<object> { new Product { Id = id++, Name = "Little Hedgehogs" } });
context.Remove(new Product { Id = id++, Name = "Little Hedgehogs" });
context.Remove((object)new Product { Id = id++, Name = "Little Hedgehogs" });
context.RemoveRange(new Product { Id = id++, Name = "Little Hedgehogs" });
context.RemoveRange(new Product { Id = id++, Name = "Little Hedgehogs" });
context.RemoveRange(new List<Product> { new Product { Id = id++, Name = "Little Hedgehogs" } });
context.RemoveRange(new List<object> { new Product { Id = id++, Name = "Little Hedgehogs" } });
context.Add(new Product { Id = id++, Name = "Little Hedgehogs" }, behavior: GraphBehavior.SingleObject);
context.Add((object)new Product { Id = id++, Name = "Little Hedgehogs" }, behavior: GraphBehavior.SingleObject);
context.AddRange(new List<Product> { new Product { Id = id++, Name = "Little Hedgehogs" } }, behavior: GraphBehavior.SingleObject);
context.AddRange(new List<object> { new Product { Id = id++, Name = "Little Hedgehogs" } }, behavior: GraphBehavior.SingleObject);
context.Attach(new Product { Id = id++, Name = "Little Hedgehogs" }, behavior: GraphBehavior.SingleObject);
context.Attach((object)new Product { Id = id++, Name = "Little Hedgehogs" }, behavior: GraphBehavior.SingleObject);
context.AttachRange(new List<Product> { new Product { Id = id++, Name = "Little Hedgehogs" } }, behavior: GraphBehavior.SingleObject);
context.AttachRange(new List<object> { new Product { Id = id++, Name = "Little Hedgehogs" } }, behavior: GraphBehavior.SingleObject);
context.Update(new Product { Id = id++, Name = "Little Hedgehogs" }, behavior: GraphBehavior.SingleObject);
context.Update((object)new Product { Id = id++, Name = "Little Hedgehogs" }, behavior: GraphBehavior.SingleObject);
context.UpdateRange(new List<Product> { new Product { Id = id++, Name = "Little Hedgehogs" } }, behavior: GraphBehavior.SingleObject);
context.UpdateRange(new List<object> { new Product { Id = id++, Name = "Little Hedgehogs" } }, behavior: GraphBehavior.SingleObject);
Assert.False(changeDetector.DetectChangesCalled);
context.ChangeTracker.DetectChanges();
Assert.True(changeDetector.DetectChangesCalled);
}
}
public void Auto_DetectChanges_for_Entry_can_be_switched_off(bool useGenericOverload)
{
using (var context = new ButTheHedgehogContext(TestHelpers.Instance.CreateServiceProvider()))
{
context.ChangeTracker.AutoDetectChangesEnabled = false;
var entry = context.Attach(new Product { Id = 1, Name = "Little Hedgehogs" }, behavior: GraphBehavior.SingleObject);
entry.Entity.Name = "Cracked Cookies";
Assert.Equal(EntityState.Unchanged, entry.State);
if (useGenericOverload)
{
context.Entry(entry.Entity);
}
else
{
context.Entry((object)entry.Entity);
}
Assert.Equal(EntityState.Unchanged, entry.State);
}
}
public void Entry_calls_DetectChanges_by_default(bool useGenericOverload)
{
using (var context = new ButTheHedgehogContext(TestHelpers.Instance.CreateServiceProvider()))
{
var entry = context.Attach(new Product { Id = 1, Name = "Little Hedgehogs" }, behavior: GraphBehavior.SingleObject);
entry.Entity.Name = "Cracked Cookies";
Assert.Equal(EntityState.Unchanged, entry.State);
if (useGenericOverload)
{
context.Entry(entry.Entity);
}
else
{
context.Entry((object)entry.Entity);
}
Assert.Equal(EntityState.Modified, entry.State);
}
}
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);
}
}
public void Add_Attach_Remove_Update_do_not_call_DetectChanges()
{
var provider = TestHelpers.Instance.CreateServiceProvider(new ServiceCollection().AddScoped<IChangeDetector, ChangeDetectorProxy>());
using (var context = new ButTheHedgehogContext(provider))
{
var changeDetector = (ChangeDetectorProxy)((IAccessor<IServiceProvider>)context).Service
.GetRequiredService<IChangeDetector>();
var entity = new Product { Id = 1, Name = "Little Hedgehogs" };
changeDetector.DetectChangesCalled = false;
context.Add(entity);
context.Add((object)entity);
context.AddRange(entity);
context.AddRange(entity);
context.AddRange(new List<Product> { entity });
context.AddRange(new List<object> { entity });
context.Attach(entity);
context.Attach((object)entity);
context.AttachRange(entity);
context.AttachRange(entity);
context.AttachRange(new List<Product> { entity });
context.AttachRange(new List<object> { entity });
context.Update(entity);
context.Update((object)entity);
context.UpdateRange(entity);
context.UpdateRange(entity);
context.UpdateRange(new List<Product> { entity });
context.UpdateRange(new List<object> { entity });
context.Remove(entity);
context.Remove((object)entity);
context.RemoveRange(entity);
context.RemoveRange(entity);
context.RemoveRange(new List<Product> { entity });
context.RemoveRange(new List<object> { entity });
Assert.False(changeDetector.DetectChangesCalled);
context.ChangeTracker.DetectChanges();
Assert.True(changeDetector.DetectChangesCalled);
}
}
public async Task Add_Attach_Remove_Update_do_not_call_DetectChanges()
{
var provider = InMemoryTestHelpers.Instance.CreateServiceProvider(new ServiceCollection().AddScoped <IChangeDetector, ChangeDetectorProxy>());
using (var context = new ButTheHedgehogContext(provider))
{
var changeDetector = (ChangeDetectorProxy)context.GetService <IChangeDetector>();
var id = 1;
changeDetector.DetectChangesCalled = false;
context.Add(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.Add((object)new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.AddRange(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.AddRange(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.AddRange(new List <Product> {
new Product {
Id = id++, Name = "Little Hedgehogs"
}
});
context.AddRange(new List <object> {
new Product {
Id = id++, Name = "Little Hedgehogs"
}
});
await context.AddAsync(new Product { Id = id++, Name = "Little Hedgehogs" });
await context.AddAsync((object)new Product { Id = id++, Name = "Little Hedgehogs" });
await context.AddRangeAsync(new Product { Id = id++, Name = "Little Hedgehogs" });
await context.AddRangeAsync(new Product { Id = id++, Name = "Little Hedgehogs" });
await context.AddRangeAsync(new List <Product> {
new Product {
Id = id++, Name = "Little Hedgehogs"
}
});
await context.AddRangeAsync(new List <object> {
new Product {
Id = id++, Name = "Little Hedgehogs"
}
});
context.Attach(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.Attach((object)new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.AttachRange(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.AttachRange(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.AttachRange(new List <Product> {
new Product {
Id = id++, Name = "Little Hedgehogs"
}
});
context.AttachRange(new List <object> {
new Product {
Id = id++, Name = "Little Hedgehogs"
}
});
context.Update(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.Update((object)new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.UpdateRange(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.UpdateRange(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.UpdateRange(new List <Product> {
new Product {
Id = id++, Name = "Little Hedgehogs"
}
});
context.UpdateRange(new List <object> {
new Product {
Id = id++, Name = "Little Hedgehogs"
}
});
context.Remove(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.Remove((object)new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.RemoveRange(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.RemoveRange(new Product {
Id = id++, Name = "Little Hedgehogs"
});
context.RemoveRange(new List <Product> {
new Product {
Id = id++, Name = "Little Hedgehogs"
}
});
context.RemoveRange(new List <object> {
new Product {
Id = id++, Name = "Little Hedgehogs"
}
});
Assert.False(changeDetector.DetectChangesCalled);
context.ChangeTracker.DetectChanges();
Assert.True(changeDetector.DetectChangesCalled);
}
}
