Check latest version from index instead of using harcoded value

tests/helper/helper_registry.go

@@ -0,0 +1,33 @@
+package helper
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"github.com/redhat-developer/odo/pkg/api"
+)
+
+type Registry struct {
+	url string
+}
+
+func NewRegistry(url string) Registry {
+	return Registry{
+		url: url,
+	}
+}
+
+func (o Registry) GetIndex() ([]api.DevfileStack, error) {
+	resp, err := http.Get(o.url + "/v2index")
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+
+	var target []api.DevfileStack
+	err = json.NewDecoder(resp.Body).Decode(&target)
+	if err != nil {
+		return nil, err
+	}
+	return target, nil
+}

tests/integration/cmd_devfile_init_test.go

@@ -10,6 +10,7 @@ import (
 	. "github.com/onsi/gomega"
 	"gopkg.in/yaml.v2"
 
+	"github.com/redhat-developer/odo/pkg/api"
 	"github.com/redhat-developer/odo/pkg/config"
 	envcontext "github.com/redhat-developer/odo/pkg/config/context"
 	"github.com/redhat-developer/odo/pkg/odo/cli/messages"
@@ -159,11 +160,12 @@ var _ = Describe("odo devfile init command tests", func() {
 
 				for _, ctx := range []struct {
 					title, devfileVersion, requiredVersion string
+					gotLatest                              bool
 				}{
 					{
-						title:           "to download the latest version",
-						devfileVersion:  "latest",
-						requiredVersion: "2.0.0",
+						title:          "to download the latest version",
+						devfileVersion: "latest",
+						gotLatest:      true,
 					},
 					{
 						title:           "to download a specific version",
@@ -184,7 +186,26 @@ var _ = Describe("odo devfile init command tests", func() {
 							files := helper.ListFilesInDir(commonVar.Context)
 							Expect(files).To(ContainElements("devfile.yaml"))
 							metadata := helper.GetMetadataFromDevfile(filepath.Join(commonVar.Context, "devfile.yaml"))
-							Expect(metadata.Version).To(BeEquivalentTo(ctx.requiredVersion))
+							if ctx.requiredVersion != "" {
+								Expect(metadata.Version).To(BeEquivalentTo(ctx.requiredVersion))
+							}
+							if ctx.gotLatest {
+								reg := helper.NewRegistry(helper.GetDevfileRegistryURL())
+								index, err := reg.GetIndex()
+								Expect(err).ToNot(HaveOccurred())
+								fmt.Printf("%+v\n", index)
+								var foundStack api.DevfileStack
+								for _, stack := range index {
+									if stack.Name != devfileName {
+										continue
+									}
+									foundStack = stack
+									break
+								}
+								Expect(len(foundStack.Versions)).ToNot(BeZero())
+								lastVersion := foundStack.Versions[0]
+								Expect(metadata.Version).To(BeEquivalentTo(lastVersion.Version))
+							}
 						})
 					})