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ModelCodeGeneratorTestBase.cs
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/
ModelCodeGeneratorTestBase.cs
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// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.EntityFrameworkCore.Design;
using Microsoft.EntityFrameworkCore.Metadata;
using Microsoft.EntityFrameworkCore.Metadata.Internal;
using Microsoft.EntityFrameworkCore.SqlServer.Design.Internal;
using Microsoft.EntityFrameworkCore.TestUtilities;
using Microsoft.Extensions.DependencyInjection;
using Xunit;
namespace Microsoft.EntityFrameworkCore.Scaffolding.Internal
{
public abstract class ModelCodeGeneratorTestBase
{
protected void Test(
Action<ModelBuilder> buildModel,
ModelCodeGenerationOptions options,
Action<ScaffoldedModel> assertScaffold,
Action<IModel> assertModel,
bool skipBuild = false)
{
var designServices = new ServiceCollection();
AddModelServices(designServices);
var modelBuilder = SqlServerTestHelpers.Instance.CreateConventionBuilder(skipValidation: true, customServices: designServices);
modelBuilder.Model.RemoveAnnotation(CoreAnnotationNames.ProductVersion);
buildModel(modelBuilder);
var _ = modelBuilder.Model.GetEntityTypeErrors();
var model = modelBuilder.FinalizeModel();
var services = new ServiceCollection();
AddScaffoldingServices(services);
services.AddEntityFrameworkDesignTimeServices();
new SqlServerDesignTimeServices().ConfigureDesignTimeServices(services);
var generator = services
.BuildServiceProvider()
.GetRequiredService<IModelCodeGenerator>();
options.ModelNamespace ??= "TestNamespace";
options.ContextName = "TestDbContext";
options.ConnectionString = "Initial Catalog=TestDatabase";
var scaffoldedModel = generator.GenerateModel(
model,
options);
assertScaffold(scaffoldedModel);
var build = new BuildSource
{
References =
{
BuildReference.ByName("Microsoft.EntityFrameworkCore.Abstractions"),
BuildReference.ByName("Microsoft.EntityFrameworkCore"),
BuildReference.ByName("Microsoft.EntityFrameworkCore.Relational"),
BuildReference.ByName("Microsoft.EntityFrameworkCore.SqlServer")
},
Sources = new List<string>(
new[] { scaffoldedModel.ContextFile.Code }.Concat(
scaffoldedModel.AdditionalFiles.Select(f => f.Code)))
};
if (!skipBuild)
{
var assembly = build.BuildInMemory();
var context = (DbContext)assembly.CreateInstance("TestNamespace.TestDbContext");
if (assertModel != null)
{
var compiledModel = context.Model;
assertModel(compiledModel);
}
}
}
protected virtual void AddModelServices(IServiceCollection services)
{
}
protected virtual void AddScaffoldingServices(IServiceCollection services)
{
}
protected static void AssertFileContents(
string expectedCode,
ScaffoldedFile file)
=> Assert.Equal(expectedCode, file.Code, ignoreLineEndingDifferences: true);
}
}