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The Tor Browser
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TestSkipChars.cpp (5047B)


      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "gtest/gtest.h"
      8 
      9 #include "gfxSkipChars.h"
     10 
     11 static bool TestConstructor() {
     12  gfxSkipChars skipChars;
     13 
     14  EXPECT_TRUE(skipChars.GetOriginalCharCount() == 0)
     15      << "[1] Make sure the gfxSkipChars was properly initialized with "
     16         "constructor";
     17 
     18  return true;
     19 }
     20 
     21 static bool TestLength() {
     22  gfxSkipChars skipChars;
     23 
     24  skipChars.KeepChars(100);
     25 
     26  EXPECT_TRUE(skipChars.GetOriginalCharCount() == 100)
     27      << "[1] Check length after keeping chars";
     28 
     29  skipChars.SkipChars(50);
     30 
     31  EXPECT_TRUE(skipChars.GetOriginalCharCount() == 150)
     32      << "[2] Check length after skipping chars";
     33 
     34  skipChars.SkipChars(50);
     35 
     36  EXPECT_TRUE(skipChars.GetOriginalCharCount() == 200)
     37      << "[3] Check length after skipping more chars";
     38 
     39  skipChars.KeepChar();
     40 
     41  EXPECT_TRUE(skipChars.GetOriginalCharCount() == 201)
     42      << "[4] Check length after keeping a final char";
     43 
     44  return true;
     45 }
     46 
     47 static bool TestIterator() {
     48  // Test a gfxSkipChars that starts with kept chars
     49  gfxSkipChars skipChars1;
     50 
     51  skipChars1.KeepChars(9);
     52  skipChars1.SkipChar();
     53  skipChars1.KeepChars(9);
     54  skipChars1.SkipChar();
     55  skipChars1.KeepChars(9);
     56 
     57  EXPECT_TRUE(skipChars1.GetOriginalCharCount() == 29) << "[1] Check length";
     58 
     59  gfxSkipCharsIterator iter1(skipChars1);
     60 
     61  EXPECT_TRUE(iter1.GetOriginalOffset() == 0)
     62      << "[2] Check initial original offset";
     63  EXPECT_TRUE(iter1.GetSkippedOffset() == 0)
     64      << "[3] Check initial skipped offset";
     65 
     66  EXPECT_TRUE(iter1.IsOriginalCharSkipped() == false)
     67      << "[3a] Check IsOriginalCharSkipped for initial position";
     68 
     69  uint32_t expectSkipped1[] = {0,  1,  2,  3,  4,  5,  6,  7,  8,  9,
     70                               9,  10, 11, 12, 13, 14, 15, 16, 17, 18,
     71                               18, 19, 20, 21, 22, 23, 24, 25, 26, 27};
     72 
     73  for (uint32_t i = 0; i < std::size(expectSkipped1); i++) {
     74    EXPECT_TRUE(iter1.ConvertOriginalToSkipped(i) == expectSkipped1[i])
     75        << "[4] Check mapping of original to skipped for " << i;
     76  }
     77 
     78  int32_t expectOriginal1[] = {0,  1,  2,  3,  4,  5,  6,  7,  8,
     79                               10, 11, 12, 13, 14, 15, 16, 17, 18,
     80                               20, 21, 22, 23, 24, 25, 26, 27, 28};
     81 
     82  for (uint32_t i = 0; i < std::size(expectOriginal1); i++) {
     83    EXPECT_TRUE(iter1.ConvertSkippedToOriginal(i) == expectOriginal1[i])
     84        << "[5] Check mapping of skipped to original for " << i;
     85  }
     86 
     87  bool expectIsOriginalSkipped1[] = {
     88      false, false, false, false, false, false, false, false, false, true,
     89      false, false, false, false, false, false, false, false, false, true,
     90      false, false, false, false, false, false, false, false, false};
     91 
     92  for (uint32_t i = 0; i < std::size(expectIsOriginalSkipped1); i++) {
     93    iter1.SetOriginalOffset(i);
     94    EXPECT_TRUE(iter1.IsOriginalCharSkipped() == expectIsOriginalSkipped1[i])
     95        << "[5.a] Check IsOriginalCharSkipped for " << i;
     96  }
     97 
     98  // Test a gfxSkipChars that starts with skipped chars
     99  gfxSkipChars skipChars2;
    100 
    101  skipChars2.SkipChars(9);
    102  skipChars2.KeepChar();
    103  skipChars2.SkipChars(9);
    104  skipChars2.KeepChar();
    105  skipChars2.SkipChars(9);
    106 
    107  EXPECT_TRUE(skipChars2.GetOriginalCharCount() == 29) << "[6] Check length";
    108 
    109  gfxSkipCharsIterator iter2(skipChars2);
    110 
    111  EXPECT_TRUE(iter2.GetOriginalOffset() == 0)
    112      << "[7] Check initial original offset";
    113  EXPECT_TRUE(iter2.GetSkippedOffset() == 0)
    114      << "[8] Check initial skipped offset";
    115 
    116  EXPECT_TRUE(iter2.IsOriginalCharSkipped() == true)
    117      << "[8a] Check IsOriginalCharSkipped for initial position";
    118 
    119  uint32_t expectSkipped2[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1,
    120                               1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2};
    121 
    122  for (uint32_t i = 0; i < std::size(expectSkipped2); i++) {
    123    EXPECT_TRUE(iter2.ConvertOriginalToSkipped(i) == expectSkipped2[i])
    124        << "[9] Check mapping of original to skipped for " << i;
    125  }
    126 
    127  int32_t expectOriginal2[] = {9, 19, 29};
    128 
    129  for (uint32_t i = 0; i < std::size(expectOriginal2); i++) {
    130    EXPECT_TRUE(iter2.ConvertSkippedToOriginal(i) == expectOriginal2[i])
    131        << "[10] Check mapping of skipped to original for " << i;
    132  }
    133 
    134  bool expectIsOriginalSkipped2[] = {
    135      true, true, true, true, true, true, true, true, true, false,
    136      true, true, true, true, true, true, true, true, true, false,
    137      true, true, true, true, true, true, true, true, true};
    138 
    139  for (uint32_t i = 0; i < std::size(expectIsOriginalSkipped2); i++) {
    140    iter2.SetOriginalOffset(i);
    141    EXPECT_TRUE(iter2.IsOriginalCharSkipped() == expectIsOriginalSkipped2[i])
    142        << "[10.a] Check IsOriginalCharSkipped for " << i;
    143  }
    144 
    145  return true;
    146 }
    147 
    148 TEST(Gfx, gfxSkipChars)
    149 {
    150  TestConstructor();
    151  TestLength();
    152  TestIterator();
    153 }