Feat: add policy parser test (#4174)

Signed-off-by: huiwq1990 <huiwq1990@163.com>

pkg/appfile/parser_test.go

@@ -204,6 +204,32 @@ spec:
       	cmd?: [...string]
       }`
 
+const policyDefinition = `
+# Code generated by KubeVela templates. DO NOT EDIT. Please edit the original cue file.
+# Definition source cue file: vela-templates/definitions/internal/topology.cue
+apiVersion: core.oam.dev/v1beta1
+kind: PolicyDefinition
+metadata:
+  annotations:
+    definition.oam.dev/description: Determining the destination where components should be deployed to.
+  name: topology
+  namespace: {{ include "systemDefinitionNamespace" . }}
+spec:
+  schematic:
+    cue:
+      template: |
+        parameter: {
+        	// +usage=Specify the names of the clusters to select.
+        	cluster?: [...string]
+        	// +usage=Specify the label selector for clusters
+        	clusterLabelSelector?: [string]: string
+        	// +usage=Deprecated: Use clusterLabelSelector instead.
+        	clusterSelector?: [string]: string
+        	// +usage=Specify the target namespace to deploy in the selected clusters, default inherit the original namespace.
+        	namespace?: string
+        }
+`
+
 const appfileYaml = `
 apiVersion: core.oam.dev/v1beta1
 kind: Application
@@ -268,6 +294,12 @@ var _ = Describe("Test application parser", func() {
 						return err
 					}
 					*o = *td
+				case *v1beta1.PolicyDefinition:
+					ppd, err := util.UnMarshalStringToPolicyDefinition(policyDefinition)
+					if err != nil {
+						return err
+					}
+					*o = *ppd
 				}
 				return nil
 			},

pkg/oam/util/test_utils.go

@@ -190,6 +190,19 @@ func UnMarshalStringToTraitDefinition(s string) (*v1beta1.TraitDefinition, error
 	return obj, nil
 }
 
+// UnMarshalStringToPolicyDefinition parse a string to a policyDefinition object
+func UnMarshalStringToPolicyDefinition(s string) (*v1beta1.PolicyDefinition, error) {
+	obj := &v1beta1.PolicyDefinition{}
+	_body, err := yaml.YAMLToJSON([]byte(s))
+	if err != nil {
+		return nil, err
+	}
+	if err := json.Unmarshal(_body, obj); err != nil {
+		return nil, err
+	}
+	return obj, nil
+}
+
 // CheckAppRevision check if appRevision list is right
 func CheckAppRevision(revs []v1beta1.ApplicationRevision, collection []int) (bool, error) {
 	if len(revs) != len(collection) {