Опитвам се да тествам миграциите на Entity Framework 6 с Npgsql 2.0.14.3, за да завърша поддръжката на моята библиотека PostgreSqlMigrationSqlGenerator с отворен код, която позволява използването на EF миграции с Postgresql.
The test class I'm writing is this (щракнете тук за страница в github):
using System.Data.Entity.Infrastructure;
using System.Data.Entity.Migrations;
using System.Data.Entity;
using System.Data.Entity.Migrations.Sql;
using Npgsql;
using NUnit.Framework;
namespace EntityFramework.PostgreSql.Test.IntegrationTests
{
[TestFixture]
public class PostgreSqlMigrationSqlGeneretorHistoryTest
{
private const string ConnectionString = "Server=127.0.0.1;Port=5432;Database=testEF6;User Id=postgres;Password=p0o9i8u7y6;CommandTimeout=20;Preload Reader = true;";
private const string ProviderName = "Npgsql";
[Test]
public void GenerateInsertHistoryOperation()
{
var migrator = new DbMigrator(new LocalMigrationConfiguration());
migrator.Update();
}
public class LocalMigrationConfiguration : DbMigrationsConfiguration<LocalPgContext>
{
public LocalMigrationConfiguration()
{
AutomaticMigrationDataLossAllowed = true;
AutomaticMigrationsEnabled = false;
SetSqlGenerator("Npgsql", new PostgreSqlMigrationSqlGenerator());
MigrationsNamespace = "EntityFramework.PostgreSql.Test.IntegrationTests.Migrations";
MigrationsAssembly = typeof (LocalPgContext).Assembly;
TargetDatabase = new DbConnectionInfo(ConnectionString, ProviderName);
}
}
public class LocalPgContext : DbContext//, IDbProviderFactoryResolver, IDbConnectionFactory
{/*
public DbProviderFactory ResolveProviderFactory(DbConnection connection)
{
return DbProviderFactories.GetFactory("Npgsql");
}
public DbConnection CreateConnection(string nameOrConnectionString)
{
return new NpgsqlConnection(nameOrConnectionString);
}*/
}
/*
public class LocalConfiguration : DbConfiguration
{
public LocalConfiguration()
{
// can't set this cos NpgsqlServices is internal
SetProviderServices(
"Npgsql", provider: NpgsqlServices.Instance
);
}
}
*/
}
}
Тестовият метод GenerateInsertHistoryOperation не се инициализира, защото връща тази грешка:
An exception of type 'System.InvalidOperationException' occurred in EntityFramework.dll but was not handled in user code
Additional information:
The 'Instance' member of the Entity Framework provider type 'Npgsql.NpgsqlServices, Npgsql, Version=2.0.14.3, Culture=neutral, PublicKeyToken=5d8b90d52f46fda7' did not return an object that inherits from 'System.Data.Entity.Core.Common.DbProviderServices'.
Entity Framework providers must inherit from this class and the 'Instance' member must return the singleton instance of the provider.
This may be because the provider does not support Entity Framework 6 or later; see http://go.microsoft.com/fwlink/?LinkId=260882 for more information.
Добавих файл App.confing, за да задам доставчика (github връзка):
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework" requirePermission="false" />
</configSections>
<entityFramework>
<providers>
<provider invariantName="Npgsql" type="Npgsql.NpgsqlServices, Npgsql" />
</providers>
</entityFramework>
</configuration>
На този етап не знам дали Npgsql 2.0.14.3 все още не поддържа EF6 или пропускам нещо в кода си.
Щракнете тук, за да го видите в github
Благодаря.
