tests(vpc): fix postgres version (scaleway#4365)

Author: yfodil

internal/namespaces/vpc/v2/custom_private_network_test.go

@@ -41,7 +41,7 @@ func Test_GetPrivateNetwork(t *testing.T) {
 			createNIC(),
 			createLB(),
 			attachLB(),
-			createRdbInstance(),
+			createRdbInstance("RDB", "PostgreSQL"),
 		),
 		Cmd:   "scw vpc private-network get {{ .PN.ID }}",
 		Check: core.TestCheckGolden(),

internal/namespaces/vpc/v2/helper_test.go

@@ -1,7 +1,10 @@
 package vpc_test
 
 import (
+	"fmt"
+
 	"github.com/scaleway/scaleway-cli/v2/core"
+	rdbAPI "github.com/scaleway/scaleway-sdk-go/api/rdb/v1"
 )
 
 func createInstance() core.BeforeFunc {
@@ -56,11 +59,20 @@ func deleteLB() core.AfterFunc {
 	return core.ExecAfterCmd("scw lb lb delete {{ .LB.ID }}")
 }
 
-func createRdbInstance() core.BeforeFunc {
-	return core.ExecStoreBeforeCmd(
-		"RDB",
-		"scw rdb instance create node-type=DB-DEV-S is-ha-cluster=false name=cli-test engine=PostgreSQL-12 user-name=foobar password={4xdl*#QOoP+&3XRkGA)] init-endpoints.0.private-network.private-network-id={{ .PN.ID }} init-endpoints.0.private-network.service-ip=192.168.0.1/24 --wait",
-	)
+func createRdbInstance(metaKey, engineName string) core.BeforeFunc {
+	return func(ctx *core.BeforeFuncCtx) error {
+		api := rdbAPI.NewAPI(ctx.Client)
+		engine, err := api.FetchLatestEngineVersion(engineName)
+		if err != nil {
+			return err
+		}
+		cmd := fmt.Sprintf(
+			"scw rdb instance create node-type=DB-DEV-S is-ha-cluster=false name=cli-test engine=%s user-name=foobar password={4xdl*#QOoP+&3XRkGA)] init-endpoints.0.private-network.private-network-id={{ .PN.ID }} init-endpoints.0.private-network.service-ip=192.168.0.1/24 --wait",
+			engine.Name,
+		)
+
+		return core.ExecStoreBeforeCmd(metaKey, cmd)(ctx)
+	}
 }
 
 func detachRdbInstance() core.AfterFunc {