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7f174e84e6
Now callers (wgengine/monitor) don't need to mutate the state to remove boring interfaces before calling State.Equal. Instead, the methods to remove boring interfaces from the State are removed, as is the reflect-using Equal method itself, and in their place is a new EqualFiltered method that takes a func predicate to match interfaces to compare. And then the FilterInteresting predicate is added for use with EqualFiltered to do the job that that wgengine/monitor previously wanted. Now wgengine/monitor can keep the full interface state around, including the "boring" interfaces, which we'll need for peerapi on macOS/iOS to bind to the interface index of the utunN device. Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
46 lines
928 B
Go
46 lines
928 B
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package interfaces
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import (
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"encoding/json"
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"testing"
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)
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func TestGetState(t *testing.T) {
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st, err := GetState()
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if err != nil {
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t.Fatal(err)
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}
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j, err := json.MarshalIndent(st, "", "\t")
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if err != nil {
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t.Errorf("JSON: %v", err)
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}
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t.Logf("Got: %s", j)
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t.Logf("As string: %s", st)
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st2, err := GetState()
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if err != nil {
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t.Fatal(err)
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}
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if !st.EqualFiltered(st2, FilterAll) {
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// let's assume nobody was changing the system network interfaces between
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// the two GetState calls.
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t.Fatal("two States back-to-back were not equal")
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}
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t.Logf("As string:\n\t%s", st)
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}
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func TestLikelyHomeRouterIP(t *testing.T) {
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gw, my, ok := LikelyHomeRouterIP()
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if !ok {
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t.Logf("no result")
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return
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}
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t.Logf("myIP = %v; gw = %v", my, gw)
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}
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