public void GetInstances_ReturnsExpected() { var values = new Dictionary <string, string>() { { "eureka:client:serviceUrl", "https://foo.bar:8761/eureka/" } }; var builder = new ConfigurationBuilder(); builder.AddInMemoryCollection(values); var config = builder.Build(); var result = EurekaClientService.GetInstances(config, "testService", null); Assert.NotNull(result); Assert.Empty(result); }