mirror of
https://github.com/tailscale/tailscale.git
synced 2024-11-26 03:25:35 +00:00
a5d6c9d616
It'll be called a bunch, so worth a bit of effort. Could go further, but not yet. (really, should hook into wgengine/monitor and only re-read on netlink changes?) name old time/op new time/op delta DefaultRouteInterface-8 60.8µs ±11% 44.6µs ± 5% -26.65% (p=0.000 n=20+19) name old alloc/op new alloc/op delta DefaultRouteInterface-8 3.29kB ± 0% 0.55kB ± 0% -83.21% (p=0.000 n=20+20) name old allocs/op new allocs/op delta DefaultRouteInterface-8 9.00 ± 0% 6.00 ± 0% -33.33% (p=0.000 n=20+20)
61 lines
1.4 KiB
Go
61 lines
1.4 KiB
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 netns
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import (
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"fmt"
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"go/ast"
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"go/parser"
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"go/token"
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"testing"
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)
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// verifies tailscaleBypassMark is in sync with wgengine.
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func TestBypassMarkInSync(t *testing.T) {
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want := fmt.Sprintf("%q", fmt.Sprintf("0x%x", tailscaleBypassMark))
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fset := token.NewFileSet()
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f, err := parser.ParseFile(fset, "../../wgengine/router/router_linux.go", nil, 0)
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if err != nil {
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t.Fatal(err)
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}
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for _, decl := range f.Decls {
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gd, ok := decl.(*ast.GenDecl)
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if !ok || gd.Tok != token.CONST {
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continue
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}
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for _, spec := range gd.Specs {
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vs, ok := spec.(*ast.ValueSpec)
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if !ok {
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continue
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}
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for i, ident := range vs.Names {
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if ident.Name != "tailscaleBypassMark" {
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continue
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}
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valExpr := vs.Values[i]
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lit, ok := valExpr.(*ast.BasicLit)
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if !ok {
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t.Errorf("tailscaleBypassMark = %T, expected *ast.BasicLit", valExpr)
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}
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if lit.Value == want {
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// Pass.
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return
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}
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t.Fatalf("router_linux.go's tailscaleBypassMark = %s; not in sync with netns's %s", lit.Value, want)
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}
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}
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}
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t.Errorf("tailscaleBypassMark not found in router_linux.go")
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}
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func BenchmarkDefaultRouteInterface(b *testing.B) {
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b.ReportAllocs()
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for i := 0; i < b.N; i++ {
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if _, err := defaultRouteInterface(); err != nil {
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b.Fatal(err)
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}
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}
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}
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