You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: docker_stdout_example_test.go
    path of file: ./repos/terratest/test
    
    the code of the file until where you have to start completion: package test

import (
	"testing"

	"github.com/gruntwork-io/terratest/modules/docker"
	"github.com/stretchr/testify/assert"
)

func TestDockerComposeStdoutExample(t *testing.T) {
	t.Parallel()
	dockerComposeFile := "../examples/docker-compose-stdout-example/docker-compose.yml"

	// Run the build step f
    
func TestDockerComposeStdoutExample(t *testing.T) {
	t.Parallel()
	dockerComposeFile := "../examples/docker-compose-stdout-example/docker-compose.yml"

	// Run the build step first so that the build output doesn't go to stdout during the compose step.
	docker.RunDockerCompose(
		t,
		&docker.Options{},
		"-f",
		dockerComposeFile,
		"build",
	)

	// Run the Docker image, read the stdout from it, and make sure it contains the expected output.
	// The script must be run using `run bash_script` rather than `up`, so that the echo output from the script
	// is the only thing that outputs to stdout.
	output := docker.RunDockerComposeAndGetStdOut(
		t,
		&docker.Options{},
		"-f",
		dockerComposeFile,
		"run",
		"bash_script",
	)

	assert.Contains(t, output, "stdout: message")
	assert.NotContains(t, output, "stderr: error")
}