missions/tests/Azaion.Missions.E2E.Tests/Fixtures/DbSeedFixture.cs

using Npgsql;

namespace Azaion.Missions.E2E.Fixtures;

/// <summary>
/// Generic seed-applying fixture. Concrete child tasks (AZ-577 onward) supply
/// a <typeparamref name="TSeed"/> that exposes the inline SQL or named SQL
/// file from <c>_docs/02_document/tests/test-data.md § Seed Data Sets</c>.
/// </summary>
public abstract class DbSeedFixture<TSeed> : IDisposable where TSeed : ISeedSpec, new()
{
    public DbSeedFixture()
    {
        DbResetFixture.ResetDatabase(TestEnvironment.DbSideChannel);
        Apply(new TSeed());
    }

    public void Dispose() { /* Cleanup handled by next fixture's reset. */ }

    private static void Apply(ISeedSpec seed)
    {
        using var conn = new NpgsqlConnection(TestEnvironment.DbSideChannel);
        conn.Open();
        using var cmd = conn.CreateCommand();
        cmd.CommandText = seed.Sql;
        cmd.ExecuteNonQuery();
    }
}

public interface ISeedSpec
{
    string Name { get; }
    string Sql { get; }
}