secret-santa/internal/testhelpers/containers.go

package testhelpers

import (
	"context"
	"github.com/testcontainers/testcontainers-go"
	"github.com/testcontainers/testcontainers-go/modules/postgres"
	"github.com/testcontainers/testcontainers-go/wait"
)

type PostgresContainer struct {
	*postgres.PostgresContainer
	ConnectionString string
}

func CreatePostgresContainer(ctx context.Context) (*PostgresContainer, error) {
	container, err := postgres.Run(ctx, "docker.io/postgres:16-alpine",
		postgres.WithUsername("test-user"),
		postgres.WithPassword("test-password"),
		postgres.WithDatabase("test-db"),
		testcontainers.WithWaitStrategy(wait.ForLog("database system is ready to accept connections").WithOccurrence(2)),
	)
	if err != nil {
		return nil, err
	}

	connString, err := container.ConnectionString(ctx)
	if err != nil {
		return nil, err
	}
	return &PostgresContainer{
		PostgresContainer: container,
		ConnectionString:  connString,
	}, nil
}