fix for the case when no error is thrown for 'cidr' field changes (#303)

Author: hemanthKa677

infoblox/resource_infoblox_network_container.go

@@ -198,6 +198,10 @@ func resourceNetworkContainerUpdate(d *schema.ResourceData, m interface{}) error
 		return fmt.Errorf("changing the value of 'network_view' field is not allowed")
 	}
 
+	if d.HasChange("cidr") {
+		return fmt.Errorf("changing the value of 'cidr' field is not allowed")
+	}
+
 	if d.HasChange("parent_cidr") {
 		return fmt.Errorf("changing the value of 'parent_cidr' field is not allowed")
 	}

infoblox/resource_infoblox_network_container_test.go

@@ -258,6 +258,20 @@ func TestAcc_resourceNetworkContainer_ipv4(t *testing.T) {
 					}`,
 				ExpectError: updateNotAllowedRegexp,
 			},
+			{
+				Config: `
+					resource "infoblox_ipv4_network_container" "nc_2" {
+					  network_view = "default"
+					  cidr = "25.0.10.0/24"
+					  comment = "25.0.0.0/24 network container"
+					  ext_attrs = jsonencode({
+						"Tenant ID" = "terraform_test_tenant"
+						Location = "Test location"
+						Site = "Test site"
+					  })
+					}`,
+				ExpectError: updateNotAllowedRegexp,
+			},
 			{
 				Config: `
 					resource "infoblox_network_view" "nv1" {
@@ -463,6 +477,19 @@ func TestAcc_resourceNetworkContainer_ipv6(t *testing.T) {
 					}`,
 				ExpectError: updateNotAllowedRegexp,
 			},
+			{
+				Config: `
+					resource "infoblox_ipv6_network_container" "nc6_2" {
+					  network_view = "default"
+					  cidr = "fc02::/56"
+					  comment = "fc01::/56 network container"
+					  ext_attrs = jsonencode({
+						"Tenant ID" = "terraform_test_tenant"
+						Site = "Test site"
+					  })
+					}`,
+				ExpectError: updateNotAllowedRegexp,
+			},
 			{
 				Config: `
 					resource "infoblox_network_view" "nv1" {