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| 1 // Copyright 2015 PDFium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include <string> |
| 6 |
| 7 #include "testing/gtest/include/gtest/gtest.h" |
| 8 #include "../../../testing/fx_string_testhelpers.h" |
| 9 #include "../../include/fxcrt/fx_system.h" |
| 10 |
| 11 // Unit test covering cases where PDFium replaces well-known library |
| 12 // functionality on any given platformn. |
| 13 |
| 14 #if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ |
| 15 |
| 16 namespace { |
| 17 |
| 18 const FX_CHAR kSentinel = 0x7f; |
| 19 |
| 20 void Check32BitBase16Itoa(int32_t input, const char* expected_output) { |
| 21 const size_t kBufLen = 11; // "-" + 8 digits + NUL + sentinel. |
| 22 FX_CHAR buf[kBufLen]; |
| 23 buf[kBufLen - 1] = kSentinel; |
| 24 FXSYS_itoa(input, buf, 16); |
| 25 EXPECT_EQ(std::string(expected_output), buf); |
| 26 EXPECT_EQ(kSentinel, buf[kBufLen - 1]); |
| 27 } |
| 28 |
| 29 void Check32BitBase10Itoa(int32_t input, const char* expected_output) { |
| 30 const size_t kBufLen = 13; // "-" + 10 digits + NUL + sentinel. |
| 31 FX_CHAR buf[kBufLen]; |
| 32 buf[kBufLen - 1] = kSentinel; |
| 33 FXSYS_itoa(input, buf, 10); |
| 34 EXPECT_EQ(std::string(expected_output), buf); |
| 35 EXPECT_EQ(kSentinel, buf[kBufLen - 1]); |
| 36 } |
| 37 |
| 38 void Check32BitBase2Itoa(int32_t input, const char* expected_output) { |
| 39 const size_t kBufLen = 35; // "-" + 32 digits + NUL + sentinel. |
| 40 FX_CHAR buf[kBufLen]; |
| 41 buf[kBufLen - 1] = kSentinel; |
| 42 FXSYS_itoa(input, buf, 2); |
| 43 EXPECT_EQ(std::string(expected_output), buf); |
| 44 EXPECT_EQ(kSentinel, buf[kBufLen - 1]); |
| 45 } |
| 46 |
| 47 void Check64BitBase16Itoa(int64_t input, const char* expected_output) { |
| 48 const size_t kBufLen = 19; // "-" + 16 digits + NUL + sentinel. |
| 49 FX_CHAR buf[kBufLen]; |
| 50 buf[kBufLen - 1] = kSentinel; |
| 51 FXSYS_i64toa(input, buf, 16); |
| 52 EXPECT_EQ(std::string(expected_output), buf); |
| 53 EXPECT_EQ(kSentinel, buf[kBufLen - 1]); |
| 54 } |
| 55 |
| 56 void Check64BitBase10Itoa(int64_t input, const char* expected_output) { |
| 57 const size_t kBufLen = 22; // "-" + 19 digits + NUL + sentinel. |
| 58 FX_CHAR buf[kBufLen]; |
| 59 buf[kBufLen - 1] = kSentinel; |
| 60 FXSYS_i64toa(input, buf, 10); |
| 61 EXPECT_EQ(std::string(expected_output), buf); |
| 62 EXPECT_EQ(kSentinel, buf[kBufLen - 1]); |
| 63 } |
| 64 |
| 65 void Check64BitBase2Itoa(int64_t input, const char* expected_output) { |
| 66 const size_t kBufLen = 67; // "-" + 64 digits + NUL + sentinel. |
| 67 FX_CHAR buf[kBufLen]; |
| 68 buf[kBufLen - 1] = kSentinel; |
| 69 FXSYS_i64toa(input, buf, 2); |
| 70 EXPECT_EQ(std::string(expected_output), buf); |
| 71 EXPECT_EQ(kSentinel, buf[kBufLen - 1]); |
| 72 } |
| 73 |
| 74 } // namespace |
| 75 |
| 76 TEST(fxcrt, FXSYS_itoa_InvalidRadix) { |
| 77 FX_CHAR buf[32]; |
| 78 |
| 79 FXSYS_itoa(42, buf, 17); // Ours stops at 16. |
| 80 EXPECT_EQ(std::string(""), buf); |
| 81 |
| 82 FXSYS_itoa(42, buf, 1); |
| 83 EXPECT_EQ(std::string(""), buf); |
| 84 |
| 85 FXSYS_itoa(42, buf, 0); |
| 86 EXPECT_EQ(std::string(""), buf); |
| 87 |
| 88 FXSYS_itoa(42, buf, -1); |
| 89 EXPECT_EQ(std::string(""), buf); |
| 90 } |
| 91 |
| 92 TEST(fxcrt, FXSYS_itoa) { |
| 93 Check32BitBase16Itoa(std::numeric_limits<int32_t>::min(), "-80000000"); |
| 94 Check32BitBase10Itoa(std::numeric_limits<int32_t>::min(), "-2147483648"); |
| 95 Check32BitBase2Itoa(std::numeric_limits<int32_t>::min(), |
| 96 "-10000000000000000000000000000000"); |
| 97 |
| 98 Check32BitBase16Itoa(-1, "-1"); |
| 99 Check32BitBase10Itoa(-1, "-1"); |
| 100 Check32BitBase2Itoa(-1, "-1"); |
| 101 |
| 102 Check32BitBase16Itoa(0, "0"); |
| 103 Check32BitBase10Itoa(0, "0"); |
| 104 Check32BitBase2Itoa(0, "0"); |
| 105 |
| 106 Check32BitBase16Itoa(42, "2a"); |
| 107 Check32BitBase10Itoa(42, "42"); |
| 108 Check32BitBase2Itoa(42, "101010"); |
| 109 |
| 110 Check32BitBase16Itoa(std::numeric_limits<int32_t>::max(), "7fffffff"); |
| 111 Check32BitBase10Itoa(std::numeric_limits<int32_t>::max(), "2147483647"); |
| 112 Check32BitBase2Itoa(std::numeric_limits<int32_t>::max(), |
| 113 "1111111111111111111111111111111"); |
| 114 } |
| 115 |
| 116 TEST(fxcrt, FXSYS_i64toa_InvalidRadix) { |
| 117 FX_CHAR buf[32]; |
| 118 |
| 119 FXSYS_i64toa(42, buf, 17); // Ours stops at 16. |
| 120 EXPECT_EQ(std::string(""), buf); |
| 121 |
| 122 FXSYS_i64toa(42, buf, 1); |
| 123 EXPECT_EQ(std::string(""), buf); |
| 124 |
| 125 FXSYS_i64toa(42, buf, 0); |
| 126 EXPECT_EQ(std::string(""), buf); |
| 127 |
| 128 FXSYS_i64toa(42, buf, -1); |
| 129 EXPECT_EQ(std::string(""), buf); |
| 130 }; |
| 131 |
| 132 TEST(fxcrt, FXSYS_i64toa) { |
| 133 Check64BitBase16Itoa(std::numeric_limits<int64_t>::min(), |
| 134 "-8000000000000000"); |
| 135 Check64BitBase10Itoa(std::numeric_limits<int64_t>::min(), |
| 136 "-9223372036854775808"); |
| 137 Check64BitBase2Itoa( |
| 138 std::numeric_limits<int64_t>::min(), |
| 139 "-1000000000000000000000000000000000000000000000000000000000000000"); |
| 140 |
| 141 Check64BitBase16Itoa(-1, "-1"); |
| 142 Check64BitBase10Itoa(-1, "-1"); |
| 143 Check64BitBase2Itoa(-1, "-1"); |
| 144 |
| 145 Check64BitBase16Itoa(0, "0"); |
| 146 Check64BitBase10Itoa(0, "0"); |
| 147 Check64BitBase2Itoa(0, "0"); |
| 148 |
| 149 Check64BitBase16Itoa(42, "2a"); |
| 150 Check64BitBase10Itoa(42, "42"); |
| 151 Check64BitBase2Itoa(42, "101010"); |
| 152 |
| 153 Check64BitBase16Itoa(std::numeric_limits<int64_t>::max(), "7fffffffffffffff"); |
| 154 Check64BitBase10Itoa(std::numeric_limits<int64_t>::max(), |
| 155 "9223372036854775807"); |
| 156 Check64BitBase2Itoa( |
| 157 std::numeric_limits<int64_t>::max(), |
| 158 "111111111111111111111111111111111111111111111111111111111111111"); |
| 159 } |
| 160 |
| 161 #endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ |
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