fix iot updatemask and docs (#1640)

Author: danawillow

google/resource_cloudiot_registry.go

@@ -243,29 +243,29 @@ func resourceCloudIoTRegistryUpdate(d *schema.ResourceData, meta interface{}) er
 
 	if d.HasChange("event_notification_config") {
 		hasChanged = true
-		updateMask = append(updateMask, "event_notification_config")
+		updateMask = append(updateMask, "event_notification_configs")
 		if v, ok := d.GetOk("event_notification_config"); ok {
 			deviceRegistry.EventNotificationConfigs = make([]*cloudiot.EventNotificationConfig, 1, 1)
 			deviceRegistry.EventNotificationConfigs[0] = buildEventNotificationConfig(v.(map[string]interface{}))
 		}
 	}
 	if d.HasChange("state_notification_config") {
 		hasChanged = true
-		updateMask = append(updateMask, "state_notification_config")
+		updateMask = append(updateMask, "state_notification_config.pubsub_topic_name")
 		if v, ok := d.GetOk("state_notification_config"); ok {
 			deviceRegistry.StateNotificationConfig = buildStateNotificationConfig(v.(map[string]interface{}))
 		}
 	}
 	if d.HasChange("mqtt_config") {
 		hasChanged = true
-		updateMask = append(updateMask, "mqtt_config")
+		updateMask = append(updateMask, "mqtt_config.mqtt_enabled_state")
 		if v, ok := d.GetOk("mqtt_config"); ok {
 			deviceRegistry.MqttConfig = buildMqttConfig(v.(map[string]interface{}))
 		}
 	}
 	if d.HasChange("http_config") {
 		hasChanged = true
-		updateMask = append(updateMask, "http_config")
+		updateMask = append(updateMask, "http_config.http_enabled_state")
 		if v, ok := d.GetOk("http_config"); ok {
 			deviceRegistry.HttpConfig = buildHttpConfig(v.(map[string]interface{}))
 		}

google/resource_cloudiot_registry_test.go

@@ -135,7 +135,7 @@ resource "google_pubsub_topic" "default-telemetry" {
 resource "google_cloudiot_registry" "foobar" {
   depends_on = ["google_project_iam_binding.cloud-iot-iam-binding"]
 
-  name = "psregistry-test-%s"
+  name = "%s"
 
   event_notification_config = {
     pubsub_topic_name = "${google_pubsub_topic.default-devicestatus.id}"

website/docs/r/cloudiot_registry.html.markdown

@@ -6,11 +6,11 @@ description: |-
   Creates a device registry in Google's Cloud IoT Core platform
 ---
 
-# google\cloudiot\_registry
+# google\_cloudiot\_registry
 
  Creates a device registry in Google's Cloud IoT Core platform. For more information see
 [the official documentation](https://cloud.google.com/iot/docs/) and
-[API](https://cloud.google.com/iot/docs/reference/rest/v1/projects.locations.registries).
+[API](https://cloud.google.com/iot/docs/reference/cloudiot/rest/v1/projects.locations.registries).
 
 
 ## Example Usage