| // Copyright (c) 2012 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 "base/strings/string_number_conversions.h" |
| |
| #include <errno.h> |
| #include <limits.h> |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <stdio.h> |
| |
| #include <cmath> |
| #include <limits> |
| |
| #include "base/bit_cast.h" |
| #include "base/format_macros.h" |
| #include "base/stl_util.h" |
| #include "base/strings/stringprintf.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace base { |
| |
| namespace { |
| |
| template <typename INT> |
| struct NumberToStringTest { |
| INT num; |
| const char* sexpected; |
| const char* uexpected; |
| }; |
| |
| } // namespace |
| |
| TEST(StringNumberConversionsTest, NumberToString) { |
| static const NumberToStringTest<int> int_tests[] = { |
| {0, "0", "0"}, |
| {-1, "-1", "4294967295"}, |
| {std::numeric_limits<int>::max(), "2147483647", "2147483647"}, |
| {std::numeric_limits<int>::min(), "-2147483648", "2147483648"}, |
| }; |
| static const NumberToStringTest<int64_t> int64_tests[] = { |
| {0, "0", "0"}, |
| {-1, "-1", "18446744073709551615"}, |
| { |
| std::numeric_limits<int64_t>::max(), "9223372036854775807", |
| "9223372036854775807", |
| }, |
| {std::numeric_limits<int64_t>::min(), "-9223372036854775808", |
| "9223372036854775808"}, |
| }; |
| |
| for (const auto& test : int_tests) { |
| EXPECT_EQ(NumberToString(test.num), test.sexpected); |
| EXPECT_EQ(NumberToString16(test.num), UTF8ToUTF16(test.sexpected)); |
| EXPECT_EQ(NumberToString(static_cast<unsigned>(test.num)), test.uexpected); |
| EXPECT_EQ(NumberToString16(static_cast<unsigned>(test.num)), |
| UTF8ToUTF16(test.uexpected)); |
| } |
| for (const auto& test : int64_tests) { |
| EXPECT_EQ(NumberToString(test.num), test.sexpected); |
| EXPECT_EQ(NumberToString16(test.num), UTF8ToUTF16(test.sexpected)); |
| EXPECT_EQ(NumberToString(static_cast<uint64_t>(test.num)), test.uexpected); |
| EXPECT_EQ(NumberToString16(static_cast<uint64_t>(test.num)), |
| UTF8ToUTF16(test.uexpected)); |
| } |
| } |
| |
| TEST(StringNumberConversionsTest, Uint64ToString) { |
| static const struct { |
| uint64_t input; |
| std::string output; |
| } cases[] = { |
| {0, "0"}, |
| {42, "42"}, |
| {INT_MAX, "2147483647"}, |
| {std::numeric_limits<uint64_t>::max(), "18446744073709551615"}, |
| }; |
| |
| for (const auto& i : cases) |
| EXPECT_EQ(i.output, NumberToString(i.input)); |
| } |
| |
| TEST(StringNumberConversionsTest, SizeTToString) { |
| size_t size_t_max = std::numeric_limits<size_t>::max(); |
| std::string size_t_max_string = StringPrintf("%" PRIuS, size_t_max); |
| |
| static const struct { |
| size_t input; |
| std::string output; |
| } cases[] = { |
| {0, "0"}, |
| {9, "9"}, |
| {42, "42"}, |
| {INT_MAX, "2147483647"}, |
| {2147483648U, "2147483648"}, |
| #if SIZE_MAX > 4294967295U |
| {99999999999U, "99999999999"}, |
| #endif |
| {size_t_max, size_t_max_string}, |
| }; |
| |
| for (const auto& i : cases) |
| EXPECT_EQ(i.output, NumberToString(i.input)); |
| } |
| |
| TEST(StringNumberConversionsTest, StringToInt) { |
| static const struct { |
| std::string input; |
| int output; |
| bool success; |
| } cases[] = { |
| {"0", 0, true}, |
| {"42", 42, true}, |
| {"42\x99", 42, false}, |
| {"\x99" "42\x99", 0, false}, |
| {"-2147483648", INT_MIN, true}, |
| {"2147483647", INT_MAX, true}, |
| {"", 0, false}, |
| {" 42", 42, false}, |
| {"42 ", 42, false}, |
| {"\t\n\v\f\r 42", 42, false}, |
| {"blah42", 0, false}, |
| {"42blah", 42, false}, |
| {"blah42blah", 0, false}, |
| {"-273.15", -273, false}, |
| {"+98.6", 98, false}, |
| {"--123", 0, false}, |
| {"++123", 0, false}, |
| {"-+123", 0, false}, |
| {"+-123", 0, false}, |
| {"-", 0, false}, |
| {"-2147483649", INT_MIN, false}, |
| {"-99999999999", INT_MIN, false}, |
| {"2147483648", INT_MAX, false}, |
| {"99999999999", INT_MAX, false}, |
| }; |
| |
| for (const auto& i : cases) { |
| int output = i.output ^ 1; // Ensure StringToInt wrote something. |
| EXPECT_EQ(i.success, StringToInt(i.input, &output)); |
| EXPECT_EQ(i.output, output); |
| |
| string16 utf16_input = UTF8ToUTF16(i.input); |
| output = i.output ^ 1; // Ensure StringToInt wrote something. |
| EXPECT_EQ(i.success, StringToInt(utf16_input, &output)); |
| EXPECT_EQ(i.output, output); |
| } |
| |
| // One additional test to verify that conversion of numbers in strings with |
| // embedded NUL characters. The NUL and extra data after it should be |
| // interpreted as junk after the number. |
| const char input[] = "6\06"; |
| std::string input_string(input, base::size(input) - 1); |
| int output; |
| EXPECT_FALSE(StringToInt(input_string, &output)); |
| EXPECT_EQ(6, output); |
| |
| string16 utf16_input = UTF8ToUTF16(input_string); |
| output = 0; |
| EXPECT_FALSE(StringToInt(utf16_input, &output)); |
| EXPECT_EQ(6, output); |
| |
| output = 0; |
| const char16 negative_wide_input[] = { 0xFF4D, '4', '2', 0}; |
| EXPECT_FALSE(StringToInt(string16(negative_wide_input), &output)); |
| EXPECT_EQ(0, output); |
| } |
| |
| TEST(StringNumberConversionsTest, StringToUint) { |
| static const struct { |
| std::string input; |
| unsigned output; |
| bool success; |
| } cases[] = { |
| {"0", 0, true}, |
| {"42", 42, true}, |
| {"42\x99", 42, false}, |
| {"\x99" "42\x99", 0, false}, |
| {"-2147483648", 0, false}, |
| {"2147483647", INT_MAX, true}, |
| {"", 0, false}, |
| {" 42", 42, false}, |
| {"42 ", 42, false}, |
| {"\t\n\v\f\r 42", 42, false}, |
| {"blah42", 0, false}, |
| {"42blah", 42, false}, |
| {"blah42blah", 0, false}, |
| {"-273.15", 0, false}, |
| {"+98.6", 98, false}, |
| {"--123", 0, false}, |
| {"++123", 0, false}, |
| {"-+123", 0, false}, |
| {"+-123", 0, false}, |
| {"-", 0, false}, |
| {"-2147483649", 0, false}, |
| {"-99999999999", 0, false}, |
| {"4294967295", UINT_MAX, true}, |
| {"4294967296", UINT_MAX, false}, |
| {"99999999999", UINT_MAX, false}, |
| }; |
| |
| for (const auto& i : cases) { |
| unsigned output = i.output ^ 1; // Ensure StringToUint wrote something. |
| EXPECT_EQ(i.success, StringToUint(i.input, &output)); |
| EXPECT_EQ(i.output, output); |
| |
| string16 utf16_input = UTF8ToUTF16(i.input); |
| output = i.output ^ 1; // Ensure StringToUint wrote something. |
| EXPECT_EQ(i.success, StringToUint(utf16_input, &output)); |
| EXPECT_EQ(i.output, output); |
| } |
| |
| // One additional test to verify that conversion of numbers in strings with |
| // embedded NUL characters. The NUL and extra data after it should be |
| // interpreted as junk after the number. |
| const char input[] = "6\06"; |
| std::string input_string(input, base::size(input) - 1); |
| unsigned output; |
| EXPECT_FALSE(StringToUint(input_string, &output)); |
| EXPECT_EQ(6U, output); |
| |
| string16 utf16_input = UTF8ToUTF16(input_string); |
| output = 0; |
| EXPECT_FALSE(StringToUint(utf16_input, &output)); |
| EXPECT_EQ(6U, output); |
| |
| output = 0; |
| const char16 negative_wide_input[] = { 0xFF4D, '4', '2', 0}; |
| EXPECT_FALSE(StringToUint(string16(negative_wide_input), &output)); |
| EXPECT_EQ(0U, output); |
| } |
| |
| TEST(StringNumberConversionsTest, StringToInt64) { |
| static const struct { |
| std::string input; |
| int64_t output; |
| bool success; |
| } cases[] = { |
| {"0", 0, true}, |
| {"42", 42, true}, |
| {"-2147483648", INT_MIN, true}, |
| {"2147483647", INT_MAX, true}, |
| {"-2147483649", INT64_C(-2147483649), true}, |
| {"-99999999999", INT64_C(-99999999999), true}, |
| {"2147483648", INT64_C(2147483648), true}, |
| {"99999999999", INT64_C(99999999999), true}, |
| {"9223372036854775807", std::numeric_limits<int64_t>::max(), true}, |
| {"-9223372036854775808", std::numeric_limits<int64_t>::min(), true}, |
| {"09", 9, true}, |
| {"-09", -9, true}, |
| {"", 0, false}, |
| {" 42", 42, false}, |
| {"42 ", 42, false}, |
| {"0x42", 0, false}, |
| {"\t\n\v\f\r 42", 42, false}, |
| {"blah42", 0, false}, |
| {"42blah", 42, false}, |
| {"blah42blah", 0, false}, |
| {"-273.15", -273, false}, |
| {"+98.6", 98, false}, |
| {"--123", 0, false}, |
| {"++123", 0, false}, |
| {"-+123", 0, false}, |
| {"+-123", 0, false}, |
| {"-", 0, false}, |
| {"-9223372036854775809", std::numeric_limits<int64_t>::min(), false}, |
| {"-99999999999999999999", std::numeric_limits<int64_t>::min(), false}, |
| {"9223372036854775808", std::numeric_limits<int64_t>::max(), false}, |
| {"99999999999999999999", std::numeric_limits<int64_t>::max(), false}, |
| }; |
| |
| for (const auto& i : cases) { |
| int64_t output = 0; |
| EXPECT_EQ(i.success, StringToInt64(i.input, &output)); |
| EXPECT_EQ(i.output, output); |
| |
| string16 utf16_input = UTF8ToUTF16(i.input); |
| output = 0; |
| EXPECT_EQ(i.success, StringToInt64(utf16_input, &output)); |
| EXPECT_EQ(i.output, output); |
| } |
| |
| // One additional test to verify that conversion of numbers in strings with |
| // embedded NUL characters. The NUL and extra data after it should be |
| // interpreted as junk after the number. |
| const char input[] = "6\06"; |
| std::string input_string(input, base::size(input) - 1); |
| int64_t output; |
| EXPECT_FALSE(StringToInt64(input_string, &output)); |
| EXPECT_EQ(6, output); |
| |
| string16 utf16_input = UTF8ToUTF16(input_string); |
| output = 0; |
| EXPECT_FALSE(StringToInt64(utf16_input, &output)); |
| EXPECT_EQ(6, output); |
| } |
| |
| TEST(StringNumberConversionsTest, StringToUint64) { |
| static const struct { |
| std::string input; |
| uint64_t output; |
| bool success; |
| } cases[] = { |
| {"0", 0, true}, |
| {"42", 42, true}, |
| {"-2147483648", 0, false}, |
| {"2147483647", INT_MAX, true}, |
| {"-2147483649", 0, false}, |
| {"-99999999999", 0, false}, |
| {"2147483648", UINT64_C(2147483648), true}, |
| {"99999999999", UINT64_C(99999999999), true}, |
| {"9223372036854775807", std::numeric_limits<int64_t>::max(), true}, |
| {"-9223372036854775808", 0, false}, |
| {"09", 9, true}, |
| {"-09", 0, false}, |
| {"", 0, false}, |
| {" 42", 42, false}, |
| {"42 ", 42, false}, |
| {"0x42", 0, false}, |
| {"\t\n\v\f\r 42", 42, false}, |
| {"blah42", 0, false}, |
| {"42blah", 42, false}, |
| {"blah42blah", 0, false}, |
| {"-273.15", 0, false}, |
| {"+98.6", 98, false}, |
| {"--123", 0, false}, |
| {"++123", 0, false}, |
| {"-+123", 0, false}, |
| {"+-123", 0, false}, |
| {"-", 0, false}, |
| {"-9223372036854775809", 0, false}, |
| {"-99999999999999999999", 0, false}, |
| {"9223372036854775808", UINT64_C(9223372036854775808), true}, |
| {"99999999999999999999", std::numeric_limits<uint64_t>::max(), false}, |
| {"18446744073709551615", std::numeric_limits<uint64_t>::max(), true}, |
| {"18446744073709551616", std::numeric_limits<uint64_t>::max(), false}, |
| }; |
| |
| for (const auto& i : cases) { |
| uint64_t output = 0; |
| EXPECT_EQ(i.success, StringToUint64(i.input, &output)); |
| EXPECT_EQ(i.output, output); |
| |
| string16 utf16_input = UTF8ToUTF16(i.input); |
| output = 0; |
| EXPECT_EQ(i.success, StringToUint64(utf16_input, &output)); |
| EXPECT_EQ(i.output, output); |
| } |
| |
| // One additional test to verify that conversion of numbers in strings with |
| // embedded NUL characters. The NUL and extra data after it should be |
| // interpreted as junk after the number. |
| const char input[] = "6\06"; |
| std::string input_string(input, base::size(input) - 1); |
| uint64_t output; |
| EXPECT_FALSE(StringToUint64(input_string, &output)); |
| EXPECT_EQ(6U, output); |
| |
| string16 utf16_input = UTF8ToUTF16(input_string); |
| output = 0; |
| EXPECT_FALSE(StringToUint64(utf16_input, &output)); |
| EXPECT_EQ(6U, output); |
| } |
| |
| TEST(StringNumberConversionsTest, StringToSizeT) { |
| size_t size_t_max = std::numeric_limits<size_t>::max(); |
| std::string size_t_max_string = StringPrintf("%" PRIuS, size_t_max); |
| |
| static const struct { |
| std::string input; |
| size_t output; |
| bool success; |
| } cases[] = { |
| {"0", 0, true}, |
| {"42", 42, true}, |
| {"-2147483648", 0, false}, |
| {"2147483647", INT_MAX, true}, |
| {"-2147483649", 0, false}, |
| {"-99999999999", 0, false}, |
| {"2147483648", 2147483648U, true}, |
| #if SIZE_MAX > 4294967295U |
| {"99999999999", 99999999999U, true}, |
| #endif |
| {"-9223372036854775808", 0, false}, |
| {"09", 9, true}, |
| {"-09", 0, false}, |
| {"", 0, false}, |
| {" 42", 42, false}, |
| {"42 ", 42, false}, |
| {"0x42", 0, false}, |
| {"\t\n\v\f\r 42", 42, false}, |
| {"blah42", 0, false}, |
| {"42blah", 42, false}, |
| {"blah42blah", 0, false}, |
| {"-273.15", 0, false}, |
| {"+98.6", 98, false}, |
| {"--123", 0, false}, |
| {"++123", 0, false}, |
| {"-+123", 0, false}, |
| {"+-123", 0, false}, |
| {"-", 0, false}, |
| {"-9223372036854775809", 0, false}, |
| {"-99999999999999999999", 0, false}, |
| {"999999999999999999999999", size_t_max, false}, |
| {size_t_max_string, size_t_max, true}, |
| }; |
| |
| for (const auto& i : cases) { |
| size_t output = 0; |
| EXPECT_EQ(i.success, StringToSizeT(i.input, &output)); |
| EXPECT_EQ(i.output, output); |
| |
| string16 utf16_input = UTF8ToUTF16(i.input); |
| output = 0; |
| EXPECT_EQ(i.success, StringToSizeT(utf16_input, &output)); |
| EXPECT_EQ(i.output, output); |
| } |
| |
| // One additional test to verify that conversion of numbers in strings with |
| // embedded NUL characters. The NUL and extra data after it should be |
| // interpreted as junk after the number. |
| const char input[] = "6\06"; |
| std::string input_string(input, base::size(input) - 1); |
| size_t output; |
| EXPECT_FALSE(StringToSizeT(input_string, &output)); |
| EXPECT_EQ(6U, output); |
| |
| string16 utf16_input = UTF8ToUTF16(input_string); |
| output = 0; |
| EXPECT_FALSE(StringToSizeT(utf16_input, &output)); |
| EXPECT_EQ(6U, output); |
| } |
| |
| TEST(StringNumberConversionsTest, HexStringToInt) { |
| static const struct { |
| std::string input; |
| int64_t output; |
| bool success; |
| } cases[] = { |
| {"0", 0, true}, |
| {"42", 66, true}, |
| {"-42", -66, true}, |
| {"+42", 66, true}, |
| {"7fffffff", INT_MAX, true}, |
| {"-80000000", INT_MIN, true}, |
| {"80000000", INT_MAX, false}, // Overflow test. |
| {"-80000001", INT_MIN, false}, // Underflow test. |
| {"0x42", 66, true}, |
| {"-0x42", -66, true}, |
| {"+0x42", 66, true}, |
| {"0x7fffffff", INT_MAX, true}, |
| {"-0x80000000", INT_MIN, true}, |
| {"-80000000", INT_MIN, true}, |
| {"80000000", INT_MAX, false}, // Overflow test. |
| {"-80000001", INT_MIN, false}, // Underflow test. |
| {"0x0f", 15, true}, |
| {"0f", 15, true}, |
| {" 45", 0x45, false}, |
| {"\t\n\v\f\r 0x45", 0x45, false}, |
| {" 45", 0x45, false}, |
| {"45 ", 0x45, false}, |
| {"45:", 0x45, false}, |
| {"efgh", 0xef, false}, |
| {"0xefgh", 0xef, false}, |
| {"hgfe", 0, false}, |
| {"-", 0, false}, |
| {"", 0, false}, |
| {"0x", 0, false}, |
| }; |
| |
| for (const auto& i : cases) { |
| int output = 0; |
| EXPECT_EQ(i.success, HexStringToInt(i.input, &output)); |
| EXPECT_EQ(i.output, output); |
| } |
| // One additional test to verify that conversion of numbers in strings with |
| // embedded NUL characters. The NUL and extra data after it should be |
| // interpreted as junk after the number. |
| const char input[] = "0xc0ffee\0" "9"; |
| std::string input_string(input, base::size(input) - 1); |
| int output; |
| EXPECT_FALSE(HexStringToInt(input_string, &output)); |
| EXPECT_EQ(0xc0ffee, output); |
| } |
| |
| TEST(StringNumberConversionsTest, HexStringToUInt) { |
| static const struct { |
| std::string input; |
| uint32_t output; |
| bool success; |
| } cases[] = { |
| {"0", 0, true}, |
| {"42", 0x42, true}, |
| {"-42", 0, false}, |
| {"+42", 0x42, true}, |
| {"7fffffff", INT_MAX, true}, |
| {"-80000000", 0, false}, |
| {"ffffffff", 0xffffffff, true}, |
| {"DeadBeef", 0xdeadbeef, true}, |
| {"0x42", 0x42, true}, |
| {"-0x42", 0, false}, |
| {"+0x42", 0x42, true}, |
| {"0x7fffffff", INT_MAX, true}, |
| {"-0x80000000", 0, false}, |
| {"0xffffffff", std::numeric_limits<uint32_t>::max(), true}, |
| {"0XDeadBeef", 0xdeadbeef, true}, |
| {"0x7fffffffffffffff", std::numeric_limits<uint32_t>::max(), |
| false}, // Overflow test. |
| {"-0x8000000000000000", 0, false}, |
| {"0x8000000000000000", std::numeric_limits<uint32_t>::max(), |
| false}, // Overflow test. |
| {"-0x8000000000000001", 0, false}, |
| {"0xFFFFFFFFFFFFFFFF", std::numeric_limits<uint32_t>::max(), |
| false}, // Overflow test. |
| {"FFFFFFFFFFFFFFFF", std::numeric_limits<uint32_t>::max(), |
| false}, // Overflow test. |
| {"0x0000000000000000", 0, true}, |
| {"0000000000000000", 0, true}, |
| {"1FFFFFFFFFFFFFFFF", std::numeric_limits<uint32_t>::max(), |
| false}, // Overflow test. |
| {"0x0f", 0x0f, true}, |
| {"0f", 0x0f, true}, |
| {" 45", 0x45, false}, |
| {"\t\n\v\f\r 0x45", 0x45, false}, |
| {" 45", 0x45, false}, |
| {"45 ", 0x45, false}, |
| {"45:", 0x45, false}, |
| {"efgh", 0xef, false}, |
| {"0xefgh", 0xef, false}, |
| {"hgfe", 0, false}, |
| {"-", 0, false}, |
| {"", 0, false}, |
| {"0x", 0, false}, |
| }; |
| |
| for (const auto& i : cases) { |
| uint32_t output = 0; |
| EXPECT_EQ(i.success, HexStringToUInt(i.input, &output)); |
| EXPECT_EQ(i.output, output); |
| } |
| // One additional test to verify that conversion of numbers in strings with |
| // embedded NUL characters. The NUL and extra data after it should be |
| // interpreted as junk after the number. |
| const char input[] = "0xc0ffee\0" "9"; |
| std::string input_string(input, base::size(input) - 1); |
| uint32_t output; |
| EXPECT_FALSE(HexStringToUInt(input_string, &output)); |
| EXPECT_EQ(0xc0ffeeU, output); |
| } |
| |
| TEST(StringNumberConversionsTest, HexStringToInt64) { |
| static const struct { |
| std::string input; |
| int64_t output; |
| bool success; |
| } cases[] = { |
| {"0", 0, true}, |
| {"42", 66, true}, |
| {"-42", -66, true}, |
| {"+42", 66, true}, |
| {"40acd88557b", INT64_C(4444444448123), true}, |
| {"7fffffff", INT_MAX, true}, |
| {"-80000000", INT_MIN, true}, |
| {"ffffffff", 0xffffffff, true}, |
| {"DeadBeef", 0xdeadbeef, true}, |
| {"0x42", 66, true}, |
| {"-0x42", -66, true}, |
| {"+0x42", 66, true}, |
| {"0x40acd88557b", INT64_C(4444444448123), true}, |
| {"0x7fffffff", INT_MAX, true}, |
| {"-0x80000000", INT_MIN, true}, |
| {"0xffffffff", 0xffffffff, true}, |
| {"0XDeadBeef", 0xdeadbeef, true}, |
| {"0x7fffffffffffffff", std::numeric_limits<int64_t>::max(), true}, |
| {"-0x8000000000000000", std::numeric_limits<int64_t>::min(), true}, |
| {"0x8000000000000000", std::numeric_limits<int64_t>::max(), |
| false}, // Overflow test. |
| {"-0x8000000000000001", std::numeric_limits<int64_t>::min(), |
| false}, // Underflow test. |
| {"0x0f", 15, true}, |
| {"0f", 15, true}, |
| {" 45", 0x45, false}, |
| {"\t\n\v\f\r 0x45", 0x45, false}, |
| {" 45", 0x45, false}, |
| {"45 ", 0x45, false}, |
| {"45:", 0x45, false}, |
| {"efgh", 0xef, false}, |
| {"0xefgh", 0xef, false}, |
| {"hgfe", 0, false}, |
| {"-", 0, false}, |
| {"", 0, false}, |
| {"0x", 0, false}, |
| }; |
| |
| for (const auto& i : cases) { |
| int64_t output = 0; |
| EXPECT_EQ(i.success, HexStringToInt64(i.input, &output)); |
| EXPECT_EQ(i.output, output); |
| } |
| // One additional test to verify that conversion of numbers in strings with |
| // embedded NUL characters. The NUL and extra data after it should be |
| // interpreted as junk after the number. |
| const char input[] = "0xc0ffee\0" "9"; |
| std::string input_string(input, base::size(input) - 1); |
| int64_t output; |
| EXPECT_FALSE(HexStringToInt64(input_string, &output)); |
| EXPECT_EQ(0xc0ffee, output); |
| } |
| |
| TEST(StringNumberConversionsTest, HexStringToUInt64) { |
| static const struct { |
| std::string input; |
| uint64_t output; |
| bool success; |
| } cases[] = { |
| {"0", 0, true}, |
| {"42", 66, true}, |
| {"-42", 0, false}, |
| {"+42", 66, true}, |
| {"40acd88557b", INT64_C(4444444448123), true}, |
| {"7fffffff", INT_MAX, true}, |
| {"-80000000", 0, false}, |
| {"ffffffff", 0xffffffff, true}, |
| {"DeadBeef", 0xdeadbeef, true}, |
| {"0x42", 66, true}, |
| {"-0x42", 0, false}, |
| {"+0x42", 66, true}, |
| {"0x40acd88557b", INT64_C(4444444448123), true}, |
| {"0x7fffffff", INT_MAX, true}, |
| {"-0x80000000", 0, false}, |
| {"0xffffffff", 0xffffffff, true}, |
| {"0XDeadBeef", 0xdeadbeef, true}, |
| {"0x7fffffffffffffff", std::numeric_limits<int64_t>::max(), true}, |
| {"-0x8000000000000000", 0, false}, |
| {"0x8000000000000000", UINT64_C(0x8000000000000000), true}, |
| {"-0x8000000000000001", 0, false}, |
| {"0xFFFFFFFFFFFFFFFF", std::numeric_limits<uint64_t>::max(), true}, |
| {"FFFFFFFFFFFFFFFF", std::numeric_limits<uint64_t>::max(), true}, |
| {"0x0000000000000000", 0, true}, |
| {"0000000000000000", 0, true}, |
| {"1FFFFFFFFFFFFFFFF", std::numeric_limits<uint64_t>::max(), |
| false}, // Overflow test. |
| {"0x0f", 15, true}, |
| {"0f", 15, true}, |
| {" 45", 0x45, false}, |
| {"\t\n\v\f\r 0x45", 0x45, false}, |
| {" 45", 0x45, false}, |
| {"45 ", 0x45, false}, |
| {"45:", 0x45, false}, |
| {"efgh", 0xef, false}, |
| {"0xefgh", 0xef, false}, |
| {"hgfe", 0, false}, |
| {"-", 0, false}, |
| {"", 0, false}, |
| {"0x", 0, false}, |
| }; |
| |
| for (const auto& i : cases) { |
| uint64_t output = 0; |
| EXPECT_EQ(i.success, HexStringToUInt64(i.input, &output)); |
| EXPECT_EQ(i.output, output); |
| } |
| // One additional test to verify that conversion of numbers in strings with |
| // embedded NUL characters. The NUL and extra data after it should be |
| // interpreted as junk after the number. |
| const char input[] = "0xc0ffee\0" "9"; |
| std::string input_string(input, base::size(input) - 1); |
| uint64_t output; |
| EXPECT_FALSE(HexStringToUInt64(input_string, &output)); |
| EXPECT_EQ(0xc0ffeeU, output); |
| } |
| |
| TEST(StringNumberConversionsTest, HexStringToBytes) { |
| static const struct { |
| const std::string input; |
| const char* output; |
| size_t output_len; |
| bool success; |
| } cases[] = { |
| {"0", "", 0, false}, // odd number of characters fails |
| {"00", "\0", 1, true}, |
| {"42", "\x42", 1, true}, |
| {"-42", "", 0, false}, // any non-hex value fails |
| {"+42", "", 0, false}, |
| {"7fffffff", "\x7f\xff\xff\xff", 4, true}, |
| {"80000000", "\x80\0\0\0", 4, true}, |
| {"deadbeef", "\xde\xad\xbe\xef", 4, true}, |
| {"DeadBeef", "\xde\xad\xbe\xef", 4, true}, |
| {"0x42", "", 0, false}, // leading 0x fails (x is not hex) |
| {"0f", "\xf", 1, true}, |
| {"45 ", "\x45", 1, false}, |
| {"efgh", "\xef", 1, false}, |
| {"", "", 0, false}, |
| {"0123456789ABCDEF", "\x01\x23\x45\x67\x89\xAB\xCD\xEF", 8, true}, |
| {"0123456789ABCDEF012345", |
| "\x01\x23\x45\x67\x89\xAB\xCD\xEF\x01\x23\x45", 11, true}, |
| }; |
| |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| std::vector<uint8_t> output; |
| std::vector<uint8_t> compare; |
| EXPECT_EQ(cases[i].success, HexStringToBytes(cases[i].input, &output)) << |
| i << ": " << cases[i].input; |
| for (size_t j = 0; j < cases[i].output_len; ++j) |
| compare.push_back(static_cast<uint8_t>(cases[i].output[j])); |
| ASSERT_EQ(output.size(), compare.size()) << i << ": " << cases[i].input; |
| EXPECT_TRUE(std::equal(output.begin(), output.end(), compare.begin())) << |
| i << ": " << cases[i].input; |
| } |
| } |
| |
| TEST(StringNumberConversionsTest, StringToDouble) { |
| static const struct { |
| std::string input; |
| double output; |
| bool success; |
| } cases[] = { |
| // Test different forms of zero. |
| {"0", 0.0, true}, |
| {"+0", 0.0, true}, |
| {"-0", 0.0, true}, |
| {"0.0", 0.0, true}, |
| {"000000000000000000000000000000.0", 0.0, true}, |
| {"0.000000000000000000000000000", 0.0, true}, |
| |
| // Test the answer. |
| {"42", 42.0, true}, |
| {"-42", -42.0, true}, |
| |
| // Test variances of an ordinary number. |
| {"123.45", 123.45, true}, |
| {"-123.45", -123.45, true}, |
| {"+123.45", 123.45, true}, |
| |
| // Test different forms of representation. |
| {"2.99792458e8", 299792458.0, true}, |
| {"149597870.691E+3", 149597870691.0, true}, |
| {"6.", 6.0, true}, |
| |
| // Test around the largest/smallest value that a double can represent. |
| {"9e307", 9e307, true}, |
| {"1.7976e308", 1.7976e308, true}, |
| {"1.7977e308", HUGE_VAL, false}, |
| {"1.797693134862315807e+308", HUGE_VAL, true}, |
| {"1.797693134862315808e+308", HUGE_VAL, false}, |
| {"9e308", HUGE_VAL, false}, |
| {"9e309", HUGE_VAL, false}, |
| {"9e999", HUGE_VAL, false}, |
| {"9e1999", HUGE_VAL, false}, |
| {"9e19999", HUGE_VAL, false}, |
| {"9e99999999999999999999", HUGE_VAL, false}, |
| {"-9e307", -9e307, true}, |
| {"-1.7976e308", -1.7976e308, true}, |
| {"-1.7977e308", -HUGE_VAL, false}, |
| {"-1.797693134862315807e+308", -HUGE_VAL, true}, |
| {"-1.797693134862315808e+308", -HUGE_VAL, false}, |
| {"-9e308", -HUGE_VAL, false}, |
| {"-9e309", -HUGE_VAL, false}, |
| {"-9e999", -HUGE_VAL, false}, |
| {"-9e1999", -HUGE_VAL, false}, |
| {"-9e19999", -HUGE_VAL, false}, |
| {"-9e99999999999999999999", -HUGE_VAL, false}, |
| |
| // Test more exponents. |
| {"1e-2", 0.01, true}, |
| {"42 ", 42.0, false}, |
| {" 1e-2", 0.01, false}, |
| {"1e-2 ", 0.01, false}, |
| {"-1E-7", -0.0000001, true}, |
| {"01e02", 100, true}, |
| {"2.3e15", 2.3e15, true}, |
| {"100e-309", 100e-309, true}, |
| |
| // Test some invalid cases. |
| {"\t\n\v\f\r -123.45e2", -12345.0, false}, |
| {"+123 e4", 123.0, false}, |
| {"123e ", 123.0, false}, |
| {"123e", 123.0, false}, |
| {" 2.99", 2.99, false}, |
| {"1e3.4", 1000.0, false}, |
| {"nothing", 0.0, false}, |
| {"-", 0.0, false}, |
| {"+", 0.0, false}, |
| {"", 0.0, false}, |
| |
| // crbug.org/588726 |
| {"-0.0010000000000000000000000000000000000000001e-256", |
| -1.0000000000000001e-259, true}, |
| }; |
| |
| for (size_t i = 0; i < base::size(cases); ++i) { |
| double output; |
| errno = 1; |
| EXPECT_EQ(cases[i].success, StringToDouble(cases[i].input, &output)); |
| if (cases[i].success) |
| EXPECT_EQ(1, errno) << i; // confirm that errno is unchanged. |
| EXPECT_DOUBLE_EQ(cases[i].output, output); |
| } |
| |
| // One additional test to verify that conversion of numbers in strings with |
| // embedded NUL characters. The NUL and extra data after it should be |
| // interpreted as junk after the number. |
| const char input[] = "3.14\0" "159"; |
| std::string input_string(input, base::size(input) - 1); |
| double output; |
| EXPECT_FALSE(StringToDouble(input_string, &output)); |
| EXPECT_DOUBLE_EQ(3.14, output); |
| } |
| |
| TEST(StringNumberConversionsTest, DoubleToString) { |
| static const struct { |
| double input; |
| const char* expected; |
| } cases[] = { |
| {0.0, "0"}, |
| {1.25, "1.25"}, |
| {1.33518e+012, "1.33518e+12"}, |
| {1.33489e+012, "1.33489e+12"}, |
| {1.33505e+012, "1.33505e+12"}, |
| {1.33545e+009, "1335450000"}, |
| {1.33503e+009, "1335030000"}, |
| }; |
| |
| for (const auto& i : cases) { |
| EXPECT_EQ(i.expected, NumberToString(i.input)); |
| EXPECT_EQ(i.expected, UTF16ToUTF8(NumberToString16(i.input))); |
| } |
| |
| // The following two values were seen in crashes in the wild. |
| const char input_bytes[8] = {0, 0, 0, 0, '\xee', '\x6d', '\x73', '\x42'}; |
| double input = 0; |
| memcpy(&input, input_bytes, base::size(input_bytes)); |
| EXPECT_EQ("1335179083776", NumberToString(input)); |
| const char input_bytes2[8] = |
| {0, 0, 0, '\xa0', '\xda', '\x6c', '\x73', '\x42'}; |
| input = 0; |
| memcpy(&input, input_bytes2, base::size(input_bytes2)); |
| EXPECT_EQ("1334890332160", NumberToString(input)); |
| } |
| |
| TEST(StringNumberConversionsTest, HexEncode) { |
| std::string hex(HexEncode(nullptr, 0)); |
| EXPECT_EQ(hex.length(), 0U); |
| unsigned char bytes[] = {0x01, 0xff, 0x02, 0xfe, 0x03, 0x80, 0x81}; |
| hex = HexEncode(bytes, sizeof(bytes)); |
| EXPECT_EQ(hex.compare("01FF02FE038081"), 0); |
| } |
| |
| // Test cases of known-bad strtod conversions that motivated the use of dmg_fp. |
| // See https://bugs.chromium.org/p/chromium/issues/detail?id=593512. |
| TEST(StringNumberConversionsTest, StrtodFailures) { |
| static const struct { |
| const char* input; |
| uint64_t expected; |
| } cases[] = { |
| // http://www.exploringbinary.com/incorrectly-rounded-conversions-in-visual-c-plus-plus/ |
| {"9214843084008499", 0x43405e6cec57761aULL}, |
| {"0.500000000000000166533453693773481063544750213623046875", |
| 0x3fe0000000000002ULL}, |
| {"30078505129381147446200", 0x44997a3c7271b021ULL}, |
| {"1777820000000000000001", 0x4458180d5bad2e3eULL}, |
| {"0.500000000000000166547006220929549868969843373633921146392822265625", |
| 0x3fe0000000000002ULL}, |
| {"0.50000000000000016656055874808561867439493653364479541778564453125", |
| 0x3fe0000000000002ULL}, |
| {"0.3932922657273", 0x3fd92bb352c4623aULL}, |
| |
| // http://www.exploringbinary.com/incorrectly-rounded-conversions-in-gcc-and-glibc/ |
| {"0.500000000000000166533453693773481063544750213623046875", |
| 0x3fe0000000000002ULL}, |
| {"3.518437208883201171875e13", 0x42c0000000000002ULL}, |
| {"62.5364939768271845828", 0x404f44abd5aa7ca4ULL}, |
| {"8.10109172351e-10", 0x3e0bd5cbaef0fd0cULL}, |
| {"1.50000000000000011102230246251565404236316680908203125", |
| 0x3ff8000000000000ULL}, |
| {"9007199254740991.4999999999999999999999999999999995", |
| 0x433fffffffffffffULL}, |
| |
| // http://www.exploringbinary.com/incorrect-decimal-to-floating-point-conversion-in-sqlite/ |
| {"1e-23", 0x3b282db34012b251ULL}, |
| {"8.533e+68", 0x4e3fa69165a8eea2ULL}, |
| {"4.1006e-184", 0x19dbe0d1c7ea60c9ULL}, |
| {"9.998e+307", 0x7fe1cc0a350ca87bULL}, |
| {"9.9538452227e-280", 0x0602117ae45cde43ULL}, |
| {"6.47660115e-260", 0x0a1fdd9e333badadULL}, |
| {"7.4e+47", 0x49e033d7eca0adefULL}, |
| {"5.92e+48", 0x4a1033d7eca0adefULL}, |
| {"7.35e+66", 0x4dd172b70eababa9ULL}, |
| {"8.32116e+55", 0x4b8b2628393e02cdULL}, |
| }; |
| |
| for (const auto& test : cases) { |
| double output; |
| EXPECT_TRUE(StringToDouble(test.input, &output)); |
| EXPECT_EQ(bit_cast<uint64_t>(output), test.expected); |
| } |
| } |
| |
| } // namespace base |