Add a CAPI version check for HTTP/2 to integration tests

* Setting the DestinationProtocol flags could cause problems if CAPI V3
is not >= 3.104.0
* Adds one new integration test for if the route destination doesn't
already exist and the DestinationProtocol flag is set

api/cloudcontroller/ccversion/minimum_version.go

@@ -10,4 +10,6 @@ const (
 
 	MinVersionCreateServiceBrokerV3            = "3.72.0"
 	MinVersionCreateSpaceScopedServiceBrokerV3 = "3.75.0"
+
+	MinVersionHTTP2RoutingV3 = "3.104.0"
 )

integration/v7/isolated/map_route_command_test.go

@@ -3,6 +3,7 @@ package isolated
 import (
 	"fmt"
 
+	"code.cloudfoundry.org/cli/api/cloudcontroller/ccversion"
 	. "code.cloudfoundry.org/cli/cf/util/testhelpers/matchers"
 	"code.cloudfoundry.org/cli/integration/helpers"
 
@@ -128,6 +129,10 @@ var _ = Describe("map-route command", func() {
 			})
 
 			When("destination protocol is provided", func() {
+				BeforeEach(func() {
+					helpers.SkipIfVersionLessThan(ccversion.MinVersionHTTP2RoutingV3)
+				})
+
 				It("maps the route to an app", func() {
 					session := helpers.CF("map-route", appName, domainName, "--hostname", route.Host, "--destination-protocol", "http2")
 
@@ -215,6 +220,20 @@ var _ = Describe("map-route command", func() {
 					Eventually(session).Should(Say(`OK`))
 					Eventually(session).Should(Exit(0))
 				})
+
+				When("destination protocol is provided", func() {
+					BeforeEach(func() {
+						helpers.SkipIfVersionLessThan(ccversion.MinVersionHTTP2RoutingV3)
+					})
+
+					It("maps the route to an app", func() {
+						session := helpers.CF("map-route", appName, domainName, "--hostname", hostName, "--destination-protocol", "http2")
+
+						Eventually(session).Should(Say(`Mapping route %s.%s to app %s with protocol http2 in org %s / space %s as %s\.\.\.`, hostName, domainName, appName, orgName, spaceName, userName))
+						Eventually(session).Should(Say(`OK`))
+						Eventually(session).Should(Exit(0))
+					})
+				})
 			})
 
 			When("it is an TCP domain", func() {