public StripeMockFixture() { if (StripeMockHandler.StartStripeMock()) { this.port = StripeMockHandler.Port.ToString(); } else { this.port = Environment.GetEnvironmentVariable("STRIPE_MOCK_PORT") ?? "12111"; } this.EnsureStripeMockMinimumVersion(); this.origApiBase = StripeConfiguration.GetApiBase(); this.origFilesBase = StripeConfiguration.GetFilesBase(); this.origApiKey = StripeConfiguration.GetApiKey(); StripeConfiguration.SetApiBase($"http://localhost:{this.port}/v1"); StripeConfiguration.SetFilesBase($"http://localhost:{this.port}/v1"); StripeConfiguration.SetApiKey("sk_test_123"); }