1// Copyright 2024 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5package tls 6 7import ( 8 "encoding/hex" 9 "testing" 10) 11 12func TestDecodeECHConfigLists(t *testing.T) { 13 for _, tc := range []struct { 14 list string 15 numConfigs int 16 }{ 17 {"0045fe0d0041590020002092a01233db2218518ccbbbbc24df20686af417b37388de6460e94011974777090004000100010012636c6f7564666c6172652d6563682e636f6d0000", 1}, 18 {"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", 3}, 19 } { 20 b, err := hex.DecodeString(tc.list) 21 if err != nil { 22 t.Fatal(err) 23 } 24 configs, err := parseECHConfigList(b) 25 if err != nil { 26 t.Fatal(err) 27 } 28 if len(configs) != tc.numConfigs { 29 t.Fatalf("unexpected number of configs parsed: got %d want %d", len(configs), tc.numConfigs) 30 } 31 } 32 33} 34 35func TestSkipBadConfigs(t *testing.T) { 36 b, err := hex.DecodeString("00c8badd00050504030201fe0d0029006666000401020304000c000100010001000200010003400e7075626c69632e6578616d706c650000fe0d003d000020002072e8a23b7aef67832bcc89d652e3870a60f88ca684ec65d6eace6b61f136064c000411112222400e7075626c69632e6578616d706c650000fe0d004d00002000200ce95810a81d8023f41e83679bc92701b2acd46c75869f95c72bc61c6b12297c000c000100010001000200010003400e7075626c69632e6578616d706c650008aaaa000474657374") 37 if err != nil { 38 t.Fatal(err) 39 } 40 configs, err := parseECHConfigList(b) 41 if err != nil { 42 t.Fatal(err) 43 } 44 config := pickECHConfig(configs) 45 if config != nil { 46 t.Fatal("pickECHConfig picked an invalid config") 47 } 48} 49