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SequenceEndToEndTest.cs
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SequenceEndToEndTest.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// ReSharper disable InconsistentNaming
namespace Microsoft.EntityFrameworkCore;
public class SequenceEndToEndTest : IDisposable
{
[ConditionalFact]
public void Can_use_sequence_end_to_end()
{
var serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
using (var context = new BronieContext(serviceProvider, TestStore.Name))
{
context.Database.EnsureCreatedResiliently();
}
AddEntities(serviceProvider, TestStore.Name);
AddEntities(serviceProvider, TestStore.Name);
// Use a different service provider so a different generator is used but with
// the same server sequence.
serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
AddEntities(serviceProvider, TestStore.Name);
using (var context = new BronieContext(serviceProvider, TestStore.Name))
{
var pegasuses = context.Pegasuses.ToList();
for (var i = 0; i < 10; i++)
{
Assert.Equal(3, pegasuses.Count(p => p.Name == "Rainbow Dash " + i));
Assert.Equal(3, pegasuses.Count(p => p.Name == "Fluttershy " + i));
}
}
}
private static void AddEntities(IServiceProvider serviceProvider, string name)
{
using var context = new BronieContext(serviceProvider, name);
for (var i = 0; i < 10; i++)
{
context.Add(
new Pegasus { Name = "Rainbow Dash " + i });
context.Add(
new Pegasus { Name = "Fluttershy " + i });
}
context.SaveChanges();
}
[ConditionalFact]
[SqlServerCondition(SqlServerCondition.IsNotCI)]
public void Can_use_sequence_end_to_end_on_multiple_databases()
{
var serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
var dbOne = TestStore.Name + "1";
var dbTwo = TestStore.Name + "2";
foreach (var dbName in new[] { dbOne, dbTwo })
{
using var context = new BronieContext(serviceProvider, dbName);
context.Database.EnsureDeleted();
Thread.Sleep(100);
context.Database.EnsureCreatedResiliently();
}
AddEntitiesToMultipleContexts(serviceProvider, dbOne, dbTwo);
AddEntitiesToMultipleContexts(serviceProvider, dbOne, dbTwo);
// Use a different service provider so a different generator is used but with
// the same server sequence.
serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
AddEntitiesToMultipleContexts(serviceProvider, dbOne, dbTwo);
foreach (var dbName in new[] { dbOne, dbTwo })
{
using var context = new BronieContext(serviceProvider, dbName);
var pegasuses = context.Pegasuses.ToList();
for (var i = 0; i < 29; i++)
{
Assert.Equal(
dbName.EndsWith("1", StringComparison.Ordinal) ? 3 : 0,
pegasuses.Count(p => p.Name == "Rainbow Dash " + i));
Assert.Equal(3, pegasuses.Count(p => p.Name == "Fluttershy " + i));
}
}
}
private static void AddEntitiesToMultipleContexts(
IServiceProvider serviceProvider,
string dbName1,
string dbName2)
{
using var context1 = new BronieContext(serviceProvider, dbName1);
using var context2 = new BronieContext(serviceProvider, dbName2);
for (var i = 0; i < 29; i++)
{
context1.Add(
new Pegasus { Name = "Rainbow Dash " + i });
context2.Add(
new Pegasus { Name = "Fluttershy " + i });
context1.Add(
new Pegasus { Name = "Fluttershy " + i });
}
context1.SaveChanges();
context2.SaveChanges();
}
[ConditionalFact]
public async Task Can_use_sequence_end_to_end_async()
{
var serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
using (var context = new BronieContext(serviceProvider, TestStore.Name))
{
context.Database.EnsureCreatedResiliently();
}
await AddEntitiesAsync(serviceProvider, TestStore.Name);
await AddEntitiesAsync(serviceProvider, TestStore.Name);
// Use a different service provider so a different generator is used but with
// the same server sequence.
serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
await AddEntitiesAsync(serviceProvider, TestStore.Name);
using (var context = new BronieContext(serviceProvider, TestStore.Name))
{
var pegasuses = await context.Pegasuses.ToListAsync();
for (var i = 0; i < 10; i++)
{
Assert.Equal(3, pegasuses.Count(p => p.Name == "Rainbow Dash " + i));
Assert.Equal(3, pegasuses.Count(p => p.Name == "Fluttershy " + i));
}
}
}
private static async Task AddEntitiesAsync(IServiceProvider serviceProvider, string databaseName)
{
using var context = new BronieContext(serviceProvider, databaseName);
for (var i = 0; i < 10; i++)
{
await context.AddAsync(
new Pegasus { Name = "Rainbow Dash " + i });
await context.AddAsync(
new Pegasus { Name = "Fluttershy " + i });
}
await context.SaveChangesAsync();
}
[ConditionalFact]
public async Task Can_use_sequence_end_to_end_from_multiple_contexts_concurrently_async()
{
var serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
using (var context = new BronieContext(serviceProvider, TestStore.Name))
{
context.Database.EnsureCreatedResiliently();
}
const int threadCount = 50;
var tests = new Func<Task>[threadCount];
for (var i = 0; i < threadCount; i++)
{
var closureProvider = serviceProvider;
tests[i] = () => AddEntitiesAsync(closureProvider, TestStore.Name);
}
var tasks = tests.Select(Task.Run).ToArray();
foreach (var t in tasks)
{
await t;
}
using (var context = new BronieContext(serviceProvider, TestStore.Name))
{
var pegasuses = await context.Pegasuses.ToListAsync();
for (var i = 0; i < 10; i++)
{
Assert.Equal(threadCount, pegasuses.Count(p => p.Name == "Rainbow Dash " + i));
Assert.Equal(threadCount, pegasuses.Count(p => p.Name == "Fluttershy " + i));
}
}
}
[ConditionalFact]
public void Can_use_explicit_values()
{
var serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
using (var context = new BronieContext(serviceProvider, TestStore.Name))
{
context.Database.EnsureCreatedResiliently();
}
AddEntitiesWithIds(serviceProvider, 0, TestStore.Name);
AddEntitiesWithIds(serviceProvider, 2, TestStore.Name);
// Use a different service provider so a different generator is used but with
// the same server sequence.
serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
AddEntitiesWithIds(serviceProvider, 4, TestStore.Name);
using (var context = new BronieContext(serviceProvider, TestStore.Name))
{
var pegasuses = context.Pegasuses.ToList();
for (var i = 1; i < 11; i++)
{
Assert.Equal(3, pegasuses.Count(p => p.Name == "Rainbow Dash " + i));
Assert.Equal(3, pegasuses.Count(p => p.Name == "Fluttershy " + i));
for (var j = 0; j < 6; j++)
{
pegasuses.Single(p => p.Identifier == i * 100 + j);
}
}
}
}
private static void AddEntitiesWithIds(IServiceProvider serviceProvider, int idOffset, string name)
{
using var context = new BronieContext(serviceProvider, name);
for (var i = 1; i < 11; i++)
{
context.Add(
new Pegasus { Name = "Rainbow Dash " + i, Identifier = i * 100 + idOffset });
context.Add(
new Pegasus { Name = "Fluttershy " + i, Identifier = i * 100 + idOffset + 1 });
}
context.SaveChanges();
}
private class BronieContext(IServiceProvider serviceProvider, string databaseName) : DbContext
{
private readonly IServiceProvider _serviceProvider = serviceProvider;
private readonly string _databaseName = databaseName;
// ReSharper disable once UnusedAutoPropertyAccessor.Local
public DbSet<Pegasus> Pegasuses { get; set; }
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
=> optionsBuilder
.UseInternalServiceProvider(_serviceProvider)
.UseSqlServer(SqlServerTestStore.CreateConnectionString(_databaseName), b => b.ApplyConfiguration());
protected override void OnModelCreating(ModelBuilder modelBuilder)
=> modelBuilder.Entity<Pegasus>(
b =>
{
b.HasKey(e => e.Identifier);
b.Property(e => e.Identifier).UseHiLo();
});
}
private class Pegasus
{
public int Identifier { get; set; }
public string Name { get; set; }
}
[ConditionalFact] // Issue #478
public void Can_use_sequence_with_nullable_key_end_to_end()
{
var serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
using (var context = new NullableBronieContext(serviceProvider, TestStore.Name, true))
{
context.Database.EnsureCreatedResiliently();
}
AddEntitiesNullable(serviceProvider, TestStore.Name, true);
AddEntitiesNullable(serviceProvider, TestStore.Name, true);
AddEntitiesNullable(serviceProvider, TestStore.Name, true);
using (var context = new NullableBronieContext(serviceProvider, TestStore.Name, true))
{
var pegasuses = context.Unicons.ToList();
for (var i = 0; i < 10; i++)
{
Assert.Equal(3, pegasuses.Count(p => p.Name == "Twilight Sparkle " + i));
Assert.Equal(3, pegasuses.Count(p => p.Name == "Rarity " + i));
}
}
}
[ConditionalFact] // Issue #478
public void Can_use_identity_with_nullable_key_end_to_end()
{
var serviceProvider = new ServiceCollection()
.AddEntityFrameworkSqlServer()
.BuildServiceProvider(validateScopes: true);
using (var context = new NullableBronieContext(serviceProvider, TestStore.Name, false))
{
context.Database.EnsureCreatedResiliently();
}
AddEntitiesNullable(serviceProvider, TestStore.Name, false);
AddEntitiesNullable(serviceProvider, TestStore.Name, false);
AddEntitiesNullable(serviceProvider, TestStore.Name, false);
using (var context = new NullableBronieContext(serviceProvider, TestStore.Name, false))
{
var pegasuses = context.Unicons.ToList();
for (var i = 0; i < 10; i++)
{
Assert.Equal(3, pegasuses.Count(p => p.Name == "Twilight Sparkle " + i));
Assert.Equal(3, pegasuses.Count(p => p.Name == "Rarity " + i));
}
}
}
private static void AddEntitiesNullable(IServiceProvider serviceProvider, string databaseName, bool useSequence)
{
using var context = new NullableBronieContext(serviceProvider, databaseName, useSequence);
for (var i = 0; i < 10; i++)
{
context.Add(
new Unicon { Name = "Twilight Sparkle " + i });
context.Add(
new Unicon { Name = "Rarity " + i });
}
context.SaveChanges();
}
private class NullableBronieContext(IServiceProvider serviceProvider, string databaseName, bool useSequence) : DbContext
{
private readonly IServiceProvider _serviceProvider = serviceProvider;
private readonly string _databaseName = databaseName;
private readonly bool _useSequence = useSequence;
// ReSharper disable once UnusedAutoPropertyAccessor.Local
public DbSet<Unicon> Unicons { get; set; }
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
=> optionsBuilder
.UseInternalServiceProvider(_serviceProvider)
.UseSqlServer(SqlServerTestStore.CreateConnectionString(_databaseName), b => b.ApplyConfiguration());
protected override void OnModelCreating(ModelBuilder modelBuilder)
=> modelBuilder.Entity<Unicon>(
b =>
{
b.HasKey(e => e.Identifier);
if (_useSequence)
{
b.Property(e => e.Identifier).UseHiLo();
}
else
{
b.Property(e => e.Identifier).UseIdentityColumn();
}
});
}
private class Unicon
{
public int? Identifier { get; set; }
public string Name { get; set; }
}
public SequenceEndToEndTest()
{
TestStore = SqlServerTestStore.CreateInitialized("SequenceEndToEndTest");
}
protected SqlServerTestStore TestStore { get; }
public void Dispose()
=> TestStore.Dispose();
}