private domain doesn't fail when domain already exists (#2608)

command/v7/create_private_domain_command.go

@@ -1,6 +1,9 @@
 package v7
 
 import (
+	"fmt"
+
+	"code.cloudfoundry.org/cli/api/cloudcontroller/ccerror"
 	"code.cloudfoundry.org/cli/command/flag"
 )
 
@@ -34,8 +37,17 @@ func (cmd CreatePrivateDomainCommand) Execute(args []string) error {
 		})
 
 	warnings, err := cmd.Actor.CreatePrivateDomain(domain, orgName)
+
 	cmd.UI.DisplayWarnings(warnings)
 	if err != nil {
+		if e, ok := err.(ccerror.UnprocessableEntityError); ok {
+			inUse := fmt.Sprintf("The domain name \"%s\" is already in use", domain)
+			if e.Message == inUse {
+				cmd.UI.DisplayWarning(err.Error())
+				cmd.UI.DisplayOK()
+				return nil
+			}
+		}
 		return err
 	}
 

integration/v7/isolated/create_private_domain_test.go

@@ -106,12 +106,12 @@ var _ = Describe("create-private-domain command", func() {
 						privateDomain1 = helpers.NewDomain(orgName, helpers.NewDomainName())
 						privateDomain1.Create()
 					})
-					It("should fail and return an error", func() {
+					It("succeeds", func() {
 						session := helpers.CF("create-private-domain", orgName, privateDomain1.Name)
 
 						Eventually(session.Err).Should(Say("The domain name \"%s\" is already in use", privateDomain1.Name))
-						Eventually(session).Should(Say("FAILED"))
-						Eventually(session).Should(Exit(1))
+						Eventually(session).Should(Say("OK"))
+						Eventually(session).Should(Exit(0))
 					})
 				})
 			})