Fix wrong format and output.

pkg/printers/internalversion/describe.go

@@ -3116,7 +3116,7 @@ func describeNetworkPolicySpec(nps networking.NetworkPolicySpec, w PrefixWriter)
 	printNetworkPolicySpecIngressFrom(nps.Ingress, "    ", w)
 	w.Write(LEVEL_1, "Allowing egress traffic:\n")
 	printNetworkPolicySpecEgressTo(nps.Egress, "    ", w)
-	w.Write(LEVEL_1, "Policy Types: %v\n", nps.PolicyTypes)
+	w.Write(LEVEL_1, "Policy Types: %v\n", policyTypesToString(nps.PolicyTypes))
 }
 
 func printNetworkPolicySpecIngressFrom(npirs []networking.NetworkPolicyIngressRule, initialIndent string, w PrefixWriter) {
@@ -3167,7 +3167,7 @@ func printNetworkPolicySpecEgressTo(npers []networking.NetworkPolicyEgressRule,
 	}
 	for i, nper := range npers {
 		if len(nper.Ports) == 0 {
-			w.Write(LEVEL_0, "%s%s\n", initialIndent, "From Port: <any> (traffic allowed to all ports)")
+			w.Write(LEVEL_0, "%s%s\n", initialIndent, "To Port: <any> (traffic allowed to all ports)")
 		} else {
 			for _, port := range nper.Ports {
 				var proto api.Protocol
@@ -3176,7 +3176,7 @@ func printNetworkPolicySpecEgressTo(npers []networking.NetworkPolicyEgressRule,
 				} else {
 					proto = api.ProtocolTCP
 				}
-				w.Write(LEVEL_0, "%s%s: %s/%s\n", initialIndent, "From Port", port.Port, proto)
+				w.Write(LEVEL_0, "%s%s: %s/%s\n", initialIndent, "To Port", port.Port, proto)
 			}
 		}
 		if len(nper.To) == 0 {
@@ -3381,13 +3381,6 @@ func describePodSecurityPolicy(psp *extensions.PodSecurityPolicy) (string, error
 	})
 }
 
-func stringOrAll(s string) string {
-	if len(s) > 0 {
-		return s
-	}
-	return "*"
-}
-
 func stringOrNone(s string) string {
 	if len(s) > 0 {
 		return s
@@ -3451,6 +3444,18 @@ func capsToString(caps []api.Capability) string {
 	return stringOrNone(formattedString)
 }
 
+func policyTypesToString(pts []networking.PolicyType) string {
+	formattedString := ""
+	if pts != nil {
+		strPts := []string{}
+		for _, p := range pts {
+			strPts = append(strPts, string(p))
+		}
+		formattedString = strings.Join(strPts, ", ")
+	}
+	return stringOrNone(formattedString)
+}
+
 // newErrNoDescriber creates a new ErrNoDescriber with the names of the provided types.
 func newErrNoDescriber(types ...reflect.Type) error {
 	names := make([]string, 0, len(types))

pkg/printers/internalversion/describe_test.go

@@ -1671,8 +1671,8 @@ Spec:
     To Port: <any> (traffic allowed to all ports)
     From: <any> (traffic not restricted by source)
   Allowing egress traffic:
-    From Port: 80/TCP
-    From Port: 82/TCP
+    To Port: 80/TCP
+    To Port: 82/TCP
     To Pod Selector: id=app2,id2=app3
     To Namespace Selector: id=app2,id2=app3
     To Namespace Selector: foo in (bar1,bar2),id=app2,id2=app3
@@ -1680,9 +1680,9 @@ Spec:
         CIDR: 192.168.0.0/16
         Except: 192.168.3.0/24, 192.168.4.0/24
     ----------
-    From Port: <any> (traffic allowed to all ports)
+    To Port: <any> (traffic allowed to all ports)
     To: <any> (traffic not restricted by source)
-  Policy Types: [Ingress Egress]
+  Policy Types: Ingress, Egress
 `
 
 	port80 := intstr.FromInt(80)