policy fuzzer: ignore known panics

Signed-off-by: Adam Korczynski <[email protected]>

pkg/policy/fuzz_test.go

@@ -17,11 +17,33 @@ package policy
 
 import (
 	"context"
+	"runtime"
 	"testing"
 )
 
 var policyTypes = []string{"cue", "rego"}
 
+func catchPanics() {
+	if r := recover(); r != nil {
+		var err string
+		switch r.(type) {
+		case string:
+			err = r.(string)
+		case runtime.Error:
+			err = r.(runtime.Error).Error()
+		case error:
+			err = r.(error).Error()
+		}
+		if err == "freeNode: nodeContext out of sync" {
+			return
+		} else if err == "unreachable" {
+			return
+		} else {
+			panic(err)
+		}
+	}
+}
+
 func FuzzEvaluatePolicyAgainstJSON(f *testing.F) {
 	f.Fuzz(func(_ *testing.T, name, policyBody string, jsonBytes []byte, policyType uint8) {
 		choosePolicyType := policyTypes[int(policyType)%len(policyTypes)]