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// Yaml
viper.SetConfigType("yaml")

// JSON
viper.SetConfigType("json")

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viper.SetConfigName("config-file-name");
viper.SetConfigName("config-file-name-2");

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viper.AddConfigPath(".")
viper.AddConfigPath("$HOME/.looped")

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viper.SetConfigFile("./path/to/config-file.yaml")
viper.SetConfigFile("./path/to/config-file-2.json")

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// hard kill the container in 3 minutes (180 Seconds) 
resource.Expire(180)

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resp, err := http.Get(fmt.Sprintf("http://localhost:%s/api/v2/messages", HTTP_PORT))

assert.Nil(t, err)

defer resp.Body.Close()

assert.Equal(t, 200, resp.StatusCode)

body, err := ioutil.ReadAll(resp.Body)

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mail := Mail{
  host:     SMTP_HOST,
  port:     SMTP_PORT,
  from:     "from@example.com",
  password: "",
  username: "",
}

err := mail.Send([]string{"to@example.com"}, "Test Subject", "Sending an automated test email")
assert.Nil(t, err)

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func TestMain(m *testing.M) {
	// uses a sensible default on windows (tcp/http) and linux/osx (socket)
	pool, err := dockertest.NewPool("")
	if err != nil {
		log.Fatalf("Could not connect to docker: %s", err)
	}

	// we will use a dockerfile to build the image for testing
	resource, err := pool.BuildAndRun("mailhog-test-server", "./Dockerfile", []string{})
	if err != nil {

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os.Exit(code)

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if err := pool.Purge(resource); err != nil {
  log.Fatalf("Could not purge resource: %s", err)
}