DD.Persistence.Database.Postgres.Test/DD.Persistence.Database.Postgres.Test.csproj

@@ -9,6 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="coverlet.collector" Version="6.0.2" />
+    <PackageReference Include="Mapster" Version="7.4.0" />
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="9.0.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageReference Include="xunit" Version="2.9.2" />

DD.Persistence.Database.Postgres.Test/DbFixture.cs

@@ -0,0 +1,40 @@
+using DD.Persistence.Database.Model;
+using DD.Persistence.Database.Postgres.Extensions;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace DD.Persistence.Database.Postgres.Test;
+public class DbFixture : IDisposable
+{
+    public string connectionString { get; }
+    public ServiceProvider serviceProvider { get; private set; }
+
+    public DbFixture()
+    {
+        connectionString = $"Host=localhost;Port=5462;Username=postgres;Password=postgres;Database={Guid.CreateVersion7()}";
+
+        var serviceCollection = new ServiceCollection();
+        serviceCollection
+            .AddDbContext<PersistenceDbContext>(options => options.UseNpgsql(connectionString),
+                ServiceLifetime.Transient);
+
+        serviceProvider = serviceCollection.BuildServiceProvider();
+
+        var context = serviceProvider.GetRequiredService<PersistenceDbContext>();
+        context.Database.EnsureCreated();
+        context.Database.AddPartitioning();
+        context.SaveChanges();
+    }
+
+    public void Dispose()
+    {
+        var dbContext = new PersistencePostgresContext(
+           new DbContextOptionsBuilder<PersistencePostgresContext>()
+              .UseNpgsql(connectionString)
+              .Options);
+
+        dbContext.Database.EnsureDeleted();
+
+        GC.SuppressFinalize(this);
+    }
+}

DD.Persistence.Database.Postgres.Test/UnitTest1.cs

@@ -1,85 +1,70 @@
 using DD.Persistence.Database.Entity;
-using DD.Persistence.Database.Model;
-using DD.Persistence.Database.Postgres.Extensions;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.Extensions.Configuration;
+using Mapster;
 using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Hosting;
+using Npgsql;
 
 namespace DD.Persistence.Database.Postgres.Test;
 
-public class UnitTest1
+public class UnitTest1 : IClassFixture<DbFixture>
 {
-    private string connectionString;
-    private IHost host;
+    private ServiceProvider _serviceProvider;
+    private string _connectionString;
 
-    public UnitTest1()
+    public UnitTest1(DbFixture fixture)
     {
-        connectionString = "Host=localhost;Port=5462;Username=postgres;Password=postgres;Database=persistence5";
-
-
-
-        var builder = Host.CreateApplicationBuilder();
-        builder.Services.AddDbContext<PersistencePostgresContext>(options =>
-              options.UseNpgsql(connectionString));
-
-        builder.Services.AddScoped<DbContext>(provider => provider.GetRequiredService<PersistencePostgresContext>());
-
-        host = builder.Build();
-        using var scope = host.Services.CreateScope();
-        var provider = scope.ServiceProvider;
-
-        var context = provider.GetRequiredService<PersistencePostgresContext>();
-        context.Database.EnsureCreatedAndMigrated();
-        context.Database.AddPartitioning();
-        context.SaveChanges();
-
-
-        //using var scope2 = builder..CreateScope();
-        //var scopedServices = scope.ServiceProvider;
-
-        //var dbContext = scopedServices.GetRequiredService<PersistencePostgresContext>();
-        //dbContext.Database.EnsureCreatedAndMigrated();
-        //dbContext.SaveChanges();
+        _serviceProvider = fixture.serviceProvider;
+        _connectionString = fixture.connectionString;
     }
+
     [Fact]
     public void CreateHyperTable()
     {
-        var entity = new ParameterData() {
+        var entity = new ParameterData()
+        {
             DiscriminatorId = Guid.NewGuid(),
             ParameterId = 1,
             Timestamp = DateTime.UtcNow,
             Value = "123"
         };
 
-        var scope = host.Services.CreateScope();
+        using (var context = _serviceProvider.GetService<PersistenceDbContext>()!)
+        {
+            context.ParameterData.Add(entity);
 
-        var context = scope.ServiceProvider.GetRequiredService<PersistencePostgresContext>();
+            var entity2 = entity.Adapt<ParameterData>();
+            entity2.ParameterId = 2;
+            context.ParameterData.Add(entity2);
 
-        context.ParameterData.Add(entity);
-        context.SaveChanges();
+            var entity3 = entity2.Adapt<ParameterData>();
+            entity3.ParameterId = 3;
+            entity3.Timestamp = DateTime.UtcNow.AddDays(2);
+            context.ParameterData.Add(entity3);
 
-        entity.Timestamp = DateTime.UtcNow.AddDays(1);
-        context.ParameterData.Add(entity);
-        context.SaveChanges();
+            var entity4 = entity3.Adapt<ParameterData>();
+            entity4.ParameterId = 4;
+            context.ParameterData.Add(entity4);
 
-        entity.Timestamp = DateTime.UtcNow.AddDays(2);
-        context.ParameterData.Add(entity);
-        context.SaveChanges();
+            context.SaveChanges();
+        }
 
-        entity.Timestamp = DateTime.UtcNow.AddDays(3);
-        context.ParameterData.Add(entity);
-        context.SaveChanges();
+        var chunksCount = 0;
+        using (var connection = new NpgsqlConnection(_connectionString))
+        {
+            connection.Open();
+            string sql = "select count(*) from (select show_chunks('parameter_data'));";
 
-        entity.Timestamp = DateTime.UtcNow.AddDays(4);
-        context.ParameterData.Add(entity);
-        context.SaveChanges();
+            using (var command = new NpgsqlCommand(sql, connection))
+            {
+                using (var reader = command.ExecuteReader())
+                {
+                    while (reader.Read())
+                    {
+                        chunksCount += reader.GetInt32(0);
+                    }
+                }
+            }
+        }
+
+        Assert.Equal(2, chunksCount);
     }
-
-    //public static IHostBuilder CreateHostBuilder(string[] args) =>
-    //   Host.CreateDefaultBuilder(args)
-    //       .ConfigureWebHostDefaults(webBuilder =>
-    //       {
-    //           webBuilder.UseStartup<Startup>();
-    //       });
 }