public void ConfigurationWithStringEnvironment_Initializes()
{
Configuration config = new Configuration(
"development",
"integration_merchant_id",
"integration_public_key",
"integration_private_key"
);
BraintreeService service = new BraintreeService(config);
var host = System.Environment.GetEnvironmentVariable("GATEWAY_HOST") ?? "localhost";
var port = System.Environment.GetEnvironmentVariable("GATEWAY_PORT") ?? "3000";
var expected = string.Format("http://{0}:{1}/merchants/integration_merchant_id", host, port);
Assert.AreEqual(expected, service.BaseMerchantURL());
}