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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
namespace System.Data.Entity.Config
{
using System.Collections;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Configuration;
using System.Data.Common;
using System.Data.Entity.Core.Common;
using System.Data.Entity.Infrastructure;
using System.Data.Entity.Internal;
using System.Data.Entity.Internal.ConfigFile;
using System.Data.Entity.Migrations.Sql;
using System.Data.Entity.ModelConfiguration.Internal.UnitTests;
using System.Data.Entity.Spatial;
using System.Data.Entity.SqlServer;
using System.Data.Entity.Utilities;
using System.Linq;
using Moq;
using Xunit;
public class AppConfigDependencyResolverTests : AppConfigTestBase
{
public interface IPilkington
{
}
public class FakeConnectionFactory : IDbConnectionFactory
{
public DbConnection CreateConnection(string nameOrConnectionString)
{
throw new NotImplementedException();
}
}
[Fact]
public void GetService_returns_null_for_unknown_contract_type()
{
Assert.Null(new AppConfigDependencyResolver(CreateAppConfig()).GetService<IPilkington>("Karl"));
}
[Fact]
public void GetService_returns_registered_provider()
{
Assert.Same(
ProviderServicesFactoryTests.FakeProviderWithPublicProperty.Instance,
new AppConfigDependencyResolver(CreateAppConfigWithProvider()).GetService<DbProviderServices>("Is.Ee.Avin.A.Larf"));
}
[Fact]
public void GetService_returns_null_for_unregistered_provider_name()
{
Assert.Null(
new AppConfigDependencyResolver(CreateAppConfigWithProvider()).GetService<DbProviderServices>("Are.You.Avin.A.Larf"));
}
[Fact]
public void GetService_returns_null_for_null_empty_or_whitespace_provider_name()
{
Assert.Null(new AppConfigDependencyResolver(CreateAppConfig()).GetService<DbProviderServices>(null));
Assert.Null(new AppConfigDependencyResolver(CreateAppConfig()).GetService<DbProviderServices>(""));
Assert.Null(new AppConfigDependencyResolver(CreateAppConfig()).GetService<DbProviderServices>(" "));
}
[Fact]
public void GetService_caches_provider()
{
var mockProviders = new Mock<ProviderConfig>();
mockProviders.Setup(m => m.TryGetDbProviderServices("Ask.Rhod.Gilbert")).Returns(new Mock<DbProviderServices>().Object);
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.Providers).Returns(mockProviders.Object);
var resolver = new AppConfigDependencyResolver(mockConfig.Object);
var factoryInstance = resolver.GetService<DbProviderServices>("Ask.Rhod.Gilbert");
Assert.NotNull(factoryInstance);
mockProviders.Verify(m => m.TryGetDbProviderServices("Ask.Rhod.Gilbert"), Times.Once());
Assert.Same(factoryInstance, resolver.GetService<DbProviderServices>("Ask.Rhod.Gilbert"));
mockProviders.Verify(m => m.TryGetDbProviderServices("Ask.Rhod.Gilbert"), Times.Once());
}
[Fact]
public void GetService_caches_the_fact_that_no_provider_is_registered()
{
var mockProviders = new Mock<ProviderConfig>();
mockProviders.Setup(m => m.TryGetDbProviderServices("Ask.Rhod.Gilbert")).Returns((DbProviderServices)null);
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.Providers).Returns(mockProviders.Object);
var resolver = new AppConfigDependencyResolver(mockConfig.Object);
Assert.Null(resolver.GetService<DbProviderServices>("Ask.Rhod.Gilbert"));
mockProviders.Verify(m => m.TryGetDbProviderServices("Ask.Rhod.Gilbert"), Times.Once());
Assert.Null(resolver.GetService<DbProviderServices>("Ask.Rhod.Gilbert"));
mockProviders.Verify(m => m.TryGetDbProviderServices("Ask.Rhod.Gilbert"), Times.Once());
}
[Fact]
public void GetService_returns_registered_Migrations_SQL_generator()
{
Assert.IsType<ProviderConfigTests.TryGetMigrationSqlGeneratorFactory.MySqlGenerator>(
new AppConfigDependencyResolver(
CreateAppConfigWithProvider(
typeof(ProviderConfigTests.TryGetMigrationSqlGeneratorFactory.MySqlGenerator).AssemblyQualifiedName))
.GetService<MigrationSqlGenerator>("Is.Ee.Avin.A.Larf"));
}
[Fact]
public void GetService_returns_null_SQL_generator_for_unregistered_provider()
{
Assert.Null(
new AppConfigDependencyResolver(CreateAppConfigWithProvider()).GetService<MigrationSqlGenerator>("Are.You.Avin.A.Larf"));
}
[Fact]
public void GetService_returns_null_for_registered_provider_with_no_registered_Migrations_SQL_generator()
{
Assert.Null(
new AppConfigDependencyResolver(CreateAppConfigWithProvider()).GetService<MigrationSqlGenerator>("Is.Ee.Avin.A.Larf"));
}
[Fact]
public void GetService_returns_null_when_asked_for_SQL_generator_for_null_empty_or_whitespace_provider_name()
{
Assert.Null(new AppConfigDependencyResolver(CreateAppConfig()).GetService<MigrationSqlGenerator>(null));
Assert.Null(new AppConfigDependencyResolver(CreateAppConfig()).GetService<MigrationSqlGenerator>(""));
Assert.Null(new AppConfigDependencyResolver(CreateAppConfig()).GetService<MigrationSqlGenerator>(" "));
}
[Fact]
public void GetService_caches_Migrations_SQL_generator_and_uses_it_to_return_a_new_instance_every_call()
{
var mockProviders = new Mock<ProviderConfig>();
mockProviders.Setup(m => m.TryGetMigrationSqlGeneratorFactory("Ask.Rhod.Gilbert"))
.Returns(() => new Mock<MigrationSqlGenerator>().Object);
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.Providers).Returns(mockProviders.Object);
var resolver = new AppConfigDependencyResolver(mockConfig.Object);
var migrationSqlGenerator1 = resolver.GetService<MigrationSqlGenerator>("Ask.Rhod.Gilbert");
Assert.NotNull(migrationSqlGenerator1);
mockProviders.Verify(m => m.TryGetMigrationSqlGeneratorFactory("Ask.Rhod.Gilbert"), Times.Once());
var migrationSqlGenerator2 = resolver.GetService<MigrationSqlGenerator>("Ask.Rhod.Gilbert");
Assert.NotNull(migrationSqlGenerator2);
Assert.NotSame(migrationSqlGenerator1, migrationSqlGenerator2);
mockProviders.Verify(m => m.TryGetMigrationSqlGeneratorFactory("Ask.Rhod.Gilbert"), Times.Once());
}
[Fact]
public void GetService_caches_the_fact_that_no_Migrations_SQL_generator_is_registered()
{
var mockProviders = new Mock<ProviderConfig>();
mockProviders.Setup(m => m.TryGetMigrationSqlGeneratorFactory("Ask.Rhod.Gilbert"))
.Returns((Func<MigrationSqlGenerator>)(() => null));
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.Providers).Returns(mockProviders.Object);
var resolver = new AppConfigDependencyResolver(mockConfig.Object);
Assert.Null(resolver.GetService<MigrationSqlGenerator>("Ask.Rhod.Gilbert"));
mockProviders.Verify(m => m.TryGetMigrationSqlGeneratorFactory("Ask.Rhod.Gilbert"), Times.Once());
Assert.Null(resolver.GetService<MigrationSqlGenerator>("Ask.Rhod.Gilbert"));
mockProviders.Verify(m => m.TryGetMigrationSqlGeneratorFactory("Ask.Rhod.Gilbert"), Times.Once());
}
[Fact]
public void GetService_returns_connection_factory_set_in_config()
{
try
{
Assert.IsType<FakeConnectionFactory>(
new AppConfigDependencyResolver(
new AppConfig(
CreateEmptyConfig().AddDefaultConnectionFactory(typeof(FakeConnectionFactory).AssemblyQualifiedName)))
.GetService<IDbConnectionFactory>());
}
finally
{
Database.ResetDefaultConnectionFactory();
}
}
[Fact]
public void GetService_returns_null_if_no_connection_factory_is_set_in_config()
{
Assert.Null(new AppConfigDependencyResolver(CreateAppConfig()).GetService<IDbConnectionFactory>());
}
[Fact]
public void GetService_caches_connection_factory()
{
try
{
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.TryGetDefaultConnectionFactory()).Returns(new FakeConnectionFactory());
var resolver = new AppConfigDependencyResolver(mockConfig.Object);
var factoryInstance = resolver.GetService<IDbConnectionFactory>();
Assert.NotNull(factoryInstance);
mockConfig.Verify(m => m.TryGetDefaultConnectionFactory(), Times.Once());
Assert.Same(factoryInstance, resolver.GetService<IDbConnectionFactory>());
mockConfig.Verify(m => m.TryGetDefaultConnectionFactory(), Times.Once());
}
finally
{
Database.ResetDefaultConnectionFactory();
}
}
[Fact]
public void GetService_caches_the_fact_that_no_connection_factory_is_set()
{
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.TryGetDefaultConnectionFactory()).Returns((IDbConnectionFactory)null);
var resolver = new AppConfigDependencyResolver(mockConfig.Object);
Assert.Null(resolver.GetService<IDbConnectionFactory>());
mockConfig.Verify(m => m.TryGetDefaultConnectionFactory(), Times.Once());
Assert.Null(resolver.GetService<IDbConnectionFactory>());
mockConfig.Verify(m => m.TryGetDefaultConnectionFactory(), Times.Once());
}
[Fact]
public void GetService_returns_registered_database_initializer()
{
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.Initializers).Returns(
new InitializerConfig(
CreateEfSection(initializerDisabled: false),
new KeyValueConfigurationCollection()));
Assert.IsType<FakeInitializer<FakeContext>>(
new AppConfigDependencyResolver(mockConfig.Object).GetService<IDatabaseInitializer<FakeContext>>());
}
[Fact]
public void GetService_returns_null_for_unregistered_database_initializer()
{
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.Initializers).Returns(
new InitializerConfig(
CreateEfSection(initializerDisabled: false),
new KeyValueConfigurationCollection()));
Assert.Null(new AppConfigDependencyResolver(mockConfig.Object).GetService<IDatabaseInitializer<DbContext>>());
}
[Fact]
public void GetService_caches_database_initializer()
{
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.Initializers).Returns(
new InitializerConfig(
CreateEfSection(initializerDisabled: false),
new KeyValueConfigurationCollection()));
var resolver = new AppConfigDependencyResolver(mockConfig.Object);
var initializer = resolver.GetService<IDatabaseInitializer<FakeContext>>();
Assert.NotNull(initializer);
mockConfig.Verify(m => m.Initializers, Times.Once());
Assert.Same(initializer, resolver.GetService<IDatabaseInitializer<FakeContext>>());
mockConfig.Verify(m => m.Initializers, Times.Once());
}
[Fact]
public void GetService_caches_the_fact_that_no_database_initializer_is_registered()
{
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.Initializers).Returns(
new InitializerConfig(
CreateEfSection(initializerDisabled: false),
new KeyValueConfigurationCollection()));
var resolver = new AppConfigDependencyResolver(mockConfig.Object);
Assert.Null(resolver.GetService<IDatabaseInitializer<DbContext>>());
mockConfig.Verify(m => m.Initializers, Times.Once());
Assert.Null(resolver.GetService<IDatabaseInitializer<DbContext>>());
mockConfig.Verify(m => m.Initializers, Times.Once());
}
[Fact]
public void GetService_returns_registered_spatial_provider()
{
Assert.IsType<SqlSpatialServices>(
new AppConfigDependencyResolver(CreateAppConfigWithSpatial(typeof(SqlSpatialServices).AssemblyQualifiedName)).GetService
<DbSpatialServices>());
}
[Fact]
public void GetService_returns_null_when_no_provider_registered()
{
Assert.Null(
new AppConfigDependencyResolver(CreateAppConfigWithSpatial()).GetService<DbSpatialServices>());
}
[Fact]
public void GetService_caches_spatial_provider()
{
var mockProviders = new Mock<ProviderConfig>();
mockProviders.Setup(m => m.TryGetSpatialProvider()).Returns(new Mock<DbSpatialServices>().Object);
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.Providers).Returns(mockProviders.Object);
var resolver = new AppConfigDependencyResolver(mockConfig.Object);
var factoryInstance = resolver.GetService<DbSpatialServices>();
Assert.NotNull(factoryInstance);
mockProviders.Verify(m => m.TryGetSpatialProvider(), Times.Once());
Assert.Same(factoryInstance, resolver.GetService<DbSpatialServices>());
mockProviders.Verify(m => m.TryGetSpatialProvider(), Times.Once());
}
[Fact]
public void GetService_caches_the_fact_that_no_spatial_provider_is_registered()
{
var mockProviders = new Mock<ProviderConfig>();
mockProviders.Setup(m => m.TryGetSpatialProvider()).Returns((DbSpatialServices)null);
var mockConfig = new Mock<AppConfig>(new ConnectionStringSettingsCollection());
mockConfig.Setup(m => m.Providers).Returns(mockProviders.Object);
var resolver = new AppConfigDependencyResolver(mockConfig.Object);
Assert.Null(resolver.GetService<DbSpatialServices>());
mockProviders.Verify(m => m.TryGetSpatialProvider(), Times.Once());
Assert.Null(resolver.GetService<DbSpatialServices>());
mockProviders.Verify(m => m.TryGetSpatialProvider(), Times.Once());
}
private static EntityFrameworkSection CreateEfSection(bool initializerDisabled)
{
var mockDatabaseInitializerElement = new Mock<DatabaseInitializerElement>();
mockDatabaseInitializerElement
.Setup(m => m.InitializerTypeName)
.Returns(typeof(FakeInitializer<FakeContext>).AssemblyQualifiedName);
mockDatabaseInitializerElement.Setup(m => m.Parameters).Returns(new ParameterCollection());
var mockContextElement = new Mock<ContextElement>();
mockContextElement.Setup(m => m.IsDatabaseInitializationDisabled).Returns(initializerDisabled);
mockContextElement.Setup(m => m.ContextTypeName).Returns(typeof(FakeContext).AssemblyQualifiedName);
mockContextElement.Setup(m => m.DatabaseInitializer).Returns(mockDatabaseInitializerElement.Object);
var mockContextCollection = new Mock<ContextCollection>();
mockContextCollection.As<IEnumerable>().Setup(m => m.GetEnumerator()).Returns(
new List<ContextElement>
{
mockContextElement.Object
}.GetEnumerator());
var mockEfSection = new Mock<EntityFrameworkSection>();
mockEfSection.Setup(m => m.Contexts).Returns(mockContextCollection.Object);
return mockEfSection.Object;
}
public class FakeContext : DbContext
{
}
public class FakeInitializer<TContext> : IDatabaseInitializer<TContext>
where TContext : DbContext
{
public void InitializeDatabase(TContext context)
{
}
}
[Fact]
public void EF_provider_can_be_loaded_from_real_app_config()
{
Assert.Same(
FakeSqlProviderServices.Instance,
new AppConfigDependencyResolver(AppConfig.DefaultInstance).GetService<DbProviderServices>("System.Data.FakeSqlClient"));
}
[Fact]
public void SQL_generator_can_be_loaded_from_real_app_config()
{
Assert.IsType<FakeSqlGenerator>(
new AppConfigDependencyResolver(AppConfig.DefaultInstance).GetService<MigrationSqlGenerator>("System.Data.FakeSqlClient"));
}
[Fact]
public void Spatial_provider_can_be_loaded_from_real_app_config()
{
Assert.IsType<SqlSpatialServices>(
new AppConfigDependencyResolver(AppConfig.DefaultInstance).GetService<DbSpatialServices>());
}
private static AppConfig CreateAppConfigWithProvider(string sqlGeneratorName = null)
{
return CreateAppConfig(
"Is.Ee.Avin.A.Larf",
typeof(ProviderServicesFactoryTests.FakeProviderWithPublicProperty).AssemblyQualifiedName,
sqlGeneratorName);
}
/// <summary>
/// This test makes calls from multiple threads such that we have at least some chance of finding threading
/// issues. As with any test of this type just because the test passes does not mean that the code is
/// correct. On the other hand if this test ever fails (EVEN ONCE) then we know there is a problem to
/// be investigated. DON'T just re-run and think things are okay if the test then passes.
/// </summary>
[Fact]
public void GetService_can_be_accessed_from_multiple_threads_concurrently()
{
try
{
var appConfig = new AppConfig(
CreateEmptyConfig().AddDefaultConnectionFactory(typeof(FakeConnectionFactory).AssemblyQualifiedName));
for (var i = 0; i < 30; i++)
{
var bag = new ConcurrentBag<IDbConnectionFactory>();
var resolver = new AppConfigDependencyResolver(appConfig);
ExecuteInParallel(() => bag.Add(resolver.GetService<IDbConnectionFactory>()));
Assert.Equal(20, bag.Count);
Assert.True(bag.All(c => resolver.GetService<IDbConnectionFactory>() == c));
}
}
finally
{
Database.ResetDefaultConnectionFactory();
}
}
}
}
|
