Add tests for QuicTextUtils::HexEncode and HexDecode which use non-ASCII printable data.

net/quic/platform/api/quic_text_utils_test.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/quic/platform/api/quic_text_utils.h"
 
 #include <string>
 
 #include "base/strings/string_piece.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 53 matching lines @@
 
 TEST(QuicTextUtilsText, Uint64ToString) {
   EXPECT_EQ("123", QuicTextUtils::Uint64ToString(123));
   EXPECT_EQ("1234", QuicTextUtils::Uint64ToString(1234));
 }
 
 TEST(QuicTextUtilsText, HexEncode) {
   EXPECT_EQ("48656c6c6f", QuicTextUtils::HexEncode("Hello", 5));
   EXPECT_EQ("48656c6c6f", QuicTextUtils::HexEncode("Hello World", 5));
   EXPECT_EQ("48656c6c6f", QuicTextUtils::HexEncode("Hello"));
+  EXPECT_EQ("0102779cfa", QuicTextUtils::HexEncode("\x01\x02\x77\x9c\xfa"));
 }
 
 TEST(QuicTextUtilsText, HexDecode) {
   EXPECT_EQ("Hello", QuicTextUtils::HexDecode("48656c6c6f"));
   EXPECT_EQ("", QuicTextUtils::HexDecode(""));
+  EXPECT_EQ("\x01\x02\x77\x9c\xfa", QuicTextUtils::HexDecode("0102779cfa"));
 }
 
 TEST(QuicTextUtilsText, HexDump) {
   // Verify output of the HexDump method is as expected.
   char packet[] = {
       0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x2c, 0x20, 0x51, 0x55, 0x49, 0x43, 0x21,
       0x20, 0x54, 0x68, 0x69, 0x73, 0x20, 0x73, 0x74, 0x72, 0x69, 0x6e, 0x67,
       0x20, 0x73, 0x68, 0x6f, 0x75, 0x6c, 0x64, 0x20, 0x62, 0x65, 0x20, 0x6c,
       0x6f, 0x6e, 0x67, 0x20, 0x65, 0x6e, 0x6f, 0x75, 0x67, 0x68, 0x20, 0x74,
       0x6f, 0x20, 0x73, 0x70, 0x61, 0x6e, 0x20, 0x6d, 0x75, 0x6c, 0x74, 0x69,
@@ skipping 40 matching lines @@
   EXPECT_EQ(std::vector<StringPiece>({"a", "b", "c"}),
             QuicTextUtils::Split("a,b,c", ','));
   EXPECT_EQ(std::vector<StringPiece>({"a", "b", "c"}),
             QuicTextUtils::Split("a:b:c", ':'));
   EXPECT_EQ(std::vector<StringPiece>({"a:b:c"}),
             QuicTextUtils::Split("a:b:c", ','));
 }
 
 }  // namespace test
 }  // namespace net