key := "FLOCKER_SET_VAR"
	t.Setenv(key, strconv.Itoa(expected))
	returnVal, _ := GetEnvAsIntOrFallback(key, 1)
	assert.Equal(expected, returnVal)

	key = "FLOCKER_UNSET_VAR"
	returnVal, _ = GetEnvAsIntOrFallback(key, expected)
	assert.Equal(expected, returnVal)

	key = "FLOCKER_SET_VAR"
	t.Setenv(key, "not-an-int")
	returnVal, err := GetEnvAsIntOrFallback(key, 1)
	assert.Equal(expected, returnVal)
	if err == nil {

	if v := os.Getenv(key); v != "" {
		return v
	}
	return defaultValue
}

// GetEnvAsIntOrFallback returns the env variable (parsed as integer) for
// the given key and falls back to the given defaultValue if not set
func GetEnvAsIntOrFallback(key string, defaultValue int) (int, error) {
	if v := os.Getenv(key); v != "" {
		value, err := strconv.Atoi(v)
		if err != nil {