Added EntityFrameworkCore performance tests (#778)

Dapper.Tests.Performance/Benchmarks.EntityFrameworkCore.cs

+using BenchmarkDotNet.Attributes;
+using Dapper.Tests.Performance.Linq2Sql;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Data.Linq;
+using System.Linq;
+
+namespace Dapper.Tests.Performance
+{
+    public class EFCoreBenchmarks : BenchmarkBase
+    {
+        private EntityFrameworkCore.EFCoreContext Context;
+        private static readonly Func<DataClassesDataContext, int, Linq2Sql.Post> compiledQuery =
+            CompiledQuery.Compile((DataClassesDataContext ctx, int id) => ctx.Posts.First(p => p.Id == id));
+
+        [Setup]
+        public void Setup()
+        {
+            BaseSetup();
+            Context = new EntityFrameworkCore.EFCoreContext(_connection.ConnectionString);
+        }
+
+        [Benchmark(Description = "Normal")]
+        public Post Normal()
+        {
+            Step();
+            return Context.Posts.First(p => p.Id == i);
+        }
+
+        [Benchmark(Description = "SqlQuery")]
+        public Post SqlQuery()
+        {
+            Step();
+            return Context.Posts.FromSql("select * from Posts where Id = {0}", i).First();
+        }
+
+        [Benchmark(Description = "No Tracking")]
+        public Post NoTracking()
+        {
+            Step();
+            return Context.Posts.AsNoTracking().First(p => p.Id == i);
+        }
+    }
+}
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Dapper.Tests.Performance/Dapper.Tests.Performance.csproj

@@ -17,6 +17,8 @@
     <!--<PackageReference Include="BLToolkit" Version="4.3.6" />-->
     <PackageReference Include="EntityFramework" Version="6.1.3" />
     <PackageReference Include="FirebirdSql.Data.FirebirdClient" Version="5.9.0.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="1.1.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="1.1.2" />
     <PackageReference Include="Microsoft.SqlServer.Compact" Version="4.0.8876.1" />
     <PackageReference Include="Microsoft.SqlServer.Types" Version="14.0.314.76" />
     <PackageReference Include="MySql.Data" Version="7.0.7-m61" />

Dapper.Tests.Performance/EntityFrameworkCore/EFCoreContext.cs

+using Microsoft.EntityFrameworkCore;
+
+namespace Dapper.Tests.Performance.EntityFrameworkCore
+{
+    public class EFCoreContext : DbContext
+    {
+        private readonly string _connectionString;
+
+        public EFCoreContext(string connectionString)
+        {
+            _connectionString = connectionString;
+        }
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) => optionsBuilder.UseSqlServer(_connectionString);
+
+        public DbSet<Post> Posts { get; set; }
+    }
+}
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