Add PolicyTypes to NetworkPolicy Spec

Signed-off-by: Christopher M. Luciano <cmluciano@us.ibm.com>

pkg/apis/networking/fuzzer/fuzzer.go

@@ -36,5 +36,13 @@ var Funcs = func(codecs runtimeserializer.CodecFactory) []interface{} {
 				}
 			}
 		},
+		func(np *networking.NetworkPolicy, c fuzz.Continue) {
+			c.FuzzNoCustom(np) // fuzz self without calling this function again
+			// TODO: Implement a fuzzer to generate valid keys, values and operators for
+			// selector requirements.
+			if len(np.Spec.PolicyTypes) == 0 {
+				np.Spec.PolicyTypes = []networking.PolicyType{networking.PolicyTypeIngress}
+			}
+		},
 	}
 }