public void ClientBuilderSetInstanceID()
        {
            // Arrange
            const string instanceID = "testInstanceID";

            Client.Builder builder = new Client.Builder(TestSetup.app_key, TestSetup.app_secret);

            // Act
            builder.SetInstanceID(instanceID);
            var client = builder.Build();

            // Assert
            Assert.IsFalse(string.IsNullOrEmpty(builder.BaseUrl));
            Assert.IsFalse(string.Equals(builder.BaseUrl, AbstractClient.DefaultBaseUrl));
            Assert.IsTrue(string.Equals(builder.BaseUrl, "https://testInstanceID-baas.kinvey.com/"));

            Assert.IsFalse(string.Equals(client.MICHostName, "https://auth.kinvey.com/"));
            Assert.IsTrue(string.Equals(client.MICHostName, "https://testInstanceID-auth.kinvey.com/"));
        }