Better warmup

Author: YuriyDurov

tests/BitzArt.CA.Persistence.EntityFrameworkCore.UnitTests/Contexts/TestAppDbContext.cs

@@ -59,12 +59,13 @@ public override void Dispose()
 
     public static async Task<TestAppDbContext> PrepareAsync(Action<DbContextOptionsBuilder>? configure = null, bool createDeletables = false)
     {
-        // Arrange
         var context = new TestAppDbContext(configure);
         await context.Database.EnsureCreatedAsync();
 
         // Warmup
-        _ = context.Model;
+        var warmupEntity = new WarmupEntity();
+        context.Add(warmupEntity);
+        await context.SaveChangesAsync();
 
         if (createDeletables)
         {

tests/BitzArt.CA.Persistence.EntityFrameworkCore.UnitTests/Entities/WarmupEntity.cs

@@ -0,0 +1,6 @@
+namespace BitzArt.CA.Persistence;
+
+public class WarmupEntity
+{
+    public int Id { get; set; }
+}

tests/BitzArt.CA.Persistence.EntityFrameworkCore.UnitTests/EntityConfigurations/WarmupEntityConfiguration.cs

@@ -0,0 +1,14 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace BitzArt.CA.Persistence;
+
+public class WarmupEntityConfiguration : IEntityTypeConfiguration<WarmupEntity>
+{
+    public void Configure(EntityTypeBuilder<WarmupEntity> builder)
+    {
+        builder.ToTable("WarmupEntities");
+        builder.Property(x => x.Id).IsRequired().ValueGeneratedOnAdd();
+        builder.HasKey(x => x.Id);
+    }
+}