ensure online status and route changes are propagated (#1564)

hscontrol/util/test.go

@@ -0,0 +1,32 @@
+package util
+
+import (
+	"net/netip"
+
+	"github.com/google/go-cmp/cmp"
+	"tailscale.com/types/key"
+)
+
+var PrefixComparer = cmp.Comparer(func(x, y netip.Prefix) bool {
+	return x == y
+})
+
+var IPComparer = cmp.Comparer(func(x, y netip.Addr) bool {
+	return x.Compare(y) == 0
+})
+
+var MkeyComparer = cmp.Comparer(func(x, y key.MachinePublic) bool {
+	return x.String() == y.String()
+})
+
+var NkeyComparer = cmp.Comparer(func(x, y key.NodePublic) bool {
+	return x.String() == y.String()
+})
+
+var DkeyComparer = cmp.Comparer(func(x, y key.DiscoPublic) bool {
+	return x.String() == y.String()
+})
+
+var Comparers []cmp.Option = []cmp.Option{
+	IPComparer, PrefixComparer, MkeyComparer, NkeyComparer, DkeyComparer,
+}