abp/samples/BookStore/test/Acme.BookStore.Application.Tests/BookStoreApplicationTestModule.cs

using Microsoft.Data.Sqlite;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Storage;
using Microsoft.Extensions.DependencyInjection;
using Acme.BookStore.EntityFrameworkCore;
using Volo.Abp;
using Volo.Abp.Autofac;
using Volo.Abp.EntityFrameworkCore;
using Volo.Abp.Modularity;

namespace Acme.BookStore
{
    [DependsOn(
        typeof(BookStoreApplicationModule),
        typeof(BookStoreEntityFrameworkCoreModule),
        typeof(AbpAutofacModule),
        typeof(AbpTestBaseModule)
        )]
    public class BookStoreApplicationTestModule : AbpModule
    {
        private SqliteConnection _sqliteConnection;

        public override void ConfigureServices(ServiceConfigurationContext context)
        {
            context.Services.AddAlwaysAllowAuthorization();

            ConfigureInMemorySqlite(context.Services);
        }

        private void ConfigureInMemorySqlite(IServiceCollection services)
        {
            _sqliteConnection = CreateDatabaseAndGetConnection();

            services.Configure<AbpDbContextOptions>(options =>
            {
                options.Configure(context => { context.DbContextOptions.UseSqlite(_sqliteConnection); });
            });
        }

        public override void OnApplicationInitialization(ApplicationInitializationContext context)
        {
            SeedTestData(context);
        }

        public override void OnApplicationShutdown(ApplicationShutdownContext context)
        {
            _sqliteConnection.Dispose();
        }

        private static SqliteConnection CreateDatabaseAndGetConnection()
        {
            var connection = new SqliteConnection("Data Source=:memory:");
            connection.Open();

            var options = new DbContextOptionsBuilder<BookStoreMigrationsDbContext>()
                .UseSqlite(connection)
                .Options;

            using (var context = new BookStoreMigrationsDbContext(options))
            {
                context.GetService<IRelationalDatabaseCreator>().CreateTables();
            }

            return connection;
        }

        private static void SeedTestData(ApplicationInitializationContext context)
        {
            using (var scope = context.ServiceProvider.CreateScope())
            {
                scope.ServiceProvider
                    .GetRequiredService<BookStoreTestDataBuilder>()
                    .Build();
            }
        }
    }
}