IdentityShroud/IdentityShroud.Core.Tests/Fixtures/DbFixture.cs

using DotNet.Testcontainers.Containers;
using Microsoft.Extensions.Logging.Abstractions;
using Microsoft.Extensions.Options;
using Npgsql;
using Testcontainers.PostgreSql;

namespace IdentityShroud.Core.Tests.Fixtures;

public class DbFixture : IAsyncLifetime
{
    private readonly IContainer _postgresqlServer;

    private string ConnectionString =>
                        $"Host={_postgresqlServer.Hostname};" +
                        $"Port={DbPort};" +
                        $"Username={Username};Password={Password}";

    private string Username => "postgres";
    private string Password => "password";
    private string DbHostname => _postgresqlServer.Hostname;
    private int DbPort => _postgresqlServer.GetMappedPublicPort(PostgreSqlBuilder.PostgreSqlPort);
    
    public Db CreateDbContext(string dbName)
    {
        var db = new Db(Options.Create<DbConfiguration>(new()
        {
            ConnectionString = ConnectionString + ";Database=" + dbName,
            LogSensitiveData = false,
        }), new NullLoggerFactory());
        return db;
    }    

    public DbFixture()
    {
        _postgresqlServer = new PostgreSqlBuilder("postgres:18.1")
            .WithName("KMS-Test-Infra-" + Guid.NewGuid().ToString("D"))
            .WithPassword(Password)
            .Build();
    }

    public async ValueTask DisposeAsync()
    {
        await _postgresqlServer.StopAsync();
    }

    public async ValueTask InitializeAsync()
    {
        await _postgresqlServer.StartAsync();
    }

    public NpgsqlConnection GetConnection(string dbname)
    {
        string connString = ConnectionString
            + $";Database={dbname}";
        var connection = new NpgsqlConnection(connString);
        connection.Open();
        return connection;
    }
}

/*

[CollectionDefinition("PostgresqlFixtureCollection", DisableParallelization = false)]
public class PostgresqlFactoryCollection : ICollectionFixture<PostgresqlFixture>
{
    // This class has no code, and is never created. Its purpose is simply
    // to be the place to apply [CollectionDefinition] and all the
    // ICollectionFixture<> interfaces.
}
*/