public async Task GetIEXSymbols_Should_FetchResults() { var config = new ConfigurationBuilder() .AddJsonFile("appsettings.json") .Build(); string token = config["TOKEN"]; IEXClient client = new IEXClient(IEXBaseUrl.SandboxUrl, token); string result = await client.GetIEXSymbols(); result.Should().NotBeNullOrEmpty(); }