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// Copyright 2015 PDFium 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 <limits>
#include <string>
#include "core/fxcrt/fx_system.h"
#include "testing/fx_string_testhelpers.h"
#include "testing/gtest/include/gtest/gtest.h"
// Unit test covering cases where PDFium replaces well-known library
// functionality on any given platformn.
#if _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
namespace {
const char kSentinel = 0x7f;
void Check32BitBase16Itoa(int32_t input, const char* expected_output) {
const size_t kBufLen = 11; // "-" + 8 digits + NUL + sentinel.
char buf[kBufLen];
buf[kBufLen - 1] = kSentinel;
FXSYS_itoa(input, buf, 16);
EXPECT_EQ(std::string(expected_output), buf);
EXPECT_EQ(kSentinel, buf[kBufLen - 1]);
}
void Check32BitBase10Itoa(int32_t input, const char* expected_output) {
const size_t kBufLen = 13; // "-" + 10 digits + NUL + sentinel.
char buf[kBufLen];
buf[kBufLen - 1] = kSentinel;
FXSYS_itoa(input, buf, 10);
EXPECT_EQ(std::string(expected_output), buf);
EXPECT_EQ(kSentinel, buf[kBufLen - 1]);
}
void Check32BitBase2Itoa(int32_t input, const char* expected_output) {
const size_t kBufLen = 35; // "-" + 32 digits + NUL + sentinel.
char buf[kBufLen];
buf[kBufLen - 1] = kSentinel;
FXSYS_itoa(input, buf, 2);
EXPECT_EQ(std::string(expected_output), buf);
EXPECT_EQ(kSentinel, buf[kBufLen - 1]);
}
void Check64BitBase16Itoa(int64_t input, const char* expected_output) {
const size_t kBufLen = 19; // "-" + 16 digits + NUL + sentinel.
char buf[kBufLen];
buf[kBufLen - 1] = kSentinel;
FXSYS_i64toa(input, buf, 16);
EXPECT_EQ(std::string(expected_output), buf);
EXPECT_EQ(kSentinel, buf[kBufLen - 1]);
}
void Check64BitBase10Itoa(int64_t input, const char* expected_output) {
const size_t kBufLen = 22; // "-" + 19 digits + NUL + sentinel.
char buf[kBufLen];
buf[kBufLen - 1] = kSentinel;
FXSYS_i64toa(input, buf, 10);
EXPECT_EQ(std::string(expected_output), buf);
EXPECT_EQ(kSentinel, buf[kBufLen - 1]);
}
void Check64BitBase2Itoa(int64_t input, const char* expected_output) {
const size_t kBufLen = 67; // "-" + 64 digits + NUL + sentinel.
char buf[kBufLen];
buf[kBufLen - 1] = kSentinel;
FXSYS_i64toa(input, buf, 2);
EXPECT_EQ(std::string(expected_output), buf);
EXPECT_EQ(kSentinel, buf[kBufLen - 1]);
}
} // namespace
TEST(fxcrt, FXSYS_itoa_InvalidRadix) {
char buf[32];
FXSYS_itoa(42, buf, 17); // Ours stops at 16.
EXPECT_EQ(std::string(""), buf);
FXSYS_itoa(42, buf, 1);
EXPECT_EQ(std::string(""), buf);
FXSYS_itoa(42, buf, 0);
EXPECT_EQ(std::string(""), buf);
FXSYS_itoa(42, buf, -1);
EXPECT_EQ(std::string(""), buf);
}
TEST(fxcrt, FXSYS_itoa) {
Check32BitBase16Itoa(std::numeric_limits<int32_t>::min(), "-80000000");
Check32BitBase10Itoa(std::numeric_limits<int32_t>::min(), "-2147483648");
Check32BitBase2Itoa(std::numeric_limits<int32_t>::min(),
"-10000000000000000000000000000000");
Check32BitBase16Itoa(-1, "-1");
Check32BitBase10Itoa(-1, "-1");
Check32BitBase2Itoa(-1, "-1");
Check32BitBase16Itoa(0, "0");
Check32BitBase10Itoa(0, "0");
Check32BitBase2Itoa(0, "0");
Check32BitBase16Itoa(42, "2a");
Check32BitBase10Itoa(42, "42");
Check32BitBase2Itoa(42, "101010");
Check32BitBase16Itoa(std::numeric_limits<int32_t>::max(), "7fffffff");
Check32BitBase10Itoa(std::numeric_limits<int32_t>::max(), "2147483647");
Check32BitBase2Itoa(std::numeric_limits<int32_t>::max(),
"1111111111111111111111111111111");
}
TEST(fxcrt, FXSYS_i64toa_InvalidRadix) {
char buf[32];
FXSYS_i64toa(42, buf, 17); // Ours stops at 16.
EXPECT_EQ(std::string(""), buf);
FXSYS_i64toa(42, buf, 1);
EXPECT_EQ(std::string(""), buf);
FXSYS_i64toa(42, buf, 0);
EXPECT_EQ(std::string(""), buf);
FXSYS_i64toa(42, buf, -1);
EXPECT_EQ(std::string(""), buf);
}
TEST(fxcrt, FXSYS_i64toa) {
Check64BitBase16Itoa(std::numeric_limits<int64_t>::min(),
"-8000000000000000");
Check64BitBase10Itoa(std::numeric_limits<int64_t>::min(),
"-9223372036854775808");
Check64BitBase2Itoa(
std::numeric_limits<int64_t>::min(),
"-1000000000000000000000000000000000000000000000000000000000000000");
Check64BitBase16Itoa(-1, "-1");
Check64BitBase10Itoa(-1, "-1");
Check64BitBase2Itoa(-1, "-1");
Check64BitBase16Itoa(0, "0");
Check64BitBase10Itoa(0, "0");
Check64BitBase2Itoa(0, "0");
Check64BitBase16Itoa(42, "2a");
Check64BitBase10Itoa(42, "42");
Check64BitBase2Itoa(42, "101010");
Check64BitBase16Itoa(std::numeric_limits<int64_t>::max(), "7fffffffffffffff");
Check64BitBase10Itoa(std::numeric_limits<int64_t>::max(),
"9223372036854775807");
Check64BitBase2Itoa(
std::numeric_limits<int64_t>::max(),
"111111111111111111111111111111111111111111111111111111111111111");
}
#endif // _FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_
TEST(fxcrt, FXSYS_wcsftime) {
struct tm good_time = {};
good_time.tm_year = 74; // 1900-based.
good_time.tm_mon = 7; // 0-based.
good_time.tm_mday = 9; // 1-based.
good_time.tm_hour = 11;
good_time.tm_min = 59;
good_time.tm_sec = 59;
wchar_t buf[100] = {};
EXPECT_EQ(19u, FXSYS_wcsftime(buf, FX_ArraySize(buf), L"%Y-%m-%dT%H:%M:%S",
&good_time));
EXPECT_STREQ(L"1974-08-09T11:59:59", buf);
// Ensure wcsftime handles a wide range of years without crashing.
struct tm year_time = {};
year_time.tm_mon = 7; // 0-based.
year_time.tm_mday = 9; // 1-based.
year_time.tm_hour = 11;
year_time.tm_min = 59;
year_time.tm_sec = 59;
for (int year = -2500; year <= 2500; ++year) {
year_time.tm_year = year;
wchar_t buf[100] = {};
FXSYS_wcsftime(buf, FX_ArraySize(buf), L"%Y-%m-%dT%H:%M:%S", &year_time);
}
// Ensure wcsftime handles bad years, etc. without crashing.
struct tm bad_time = {};
bad_time.tm_year = -1;
bad_time.tm_mon = -1;
bad_time.tm_mday = -1;
bad_time.tm_hour = -1;
bad_time.tm_min = -1;
bad_time.tm_sec = -1;
FXSYS_wcsftime(buf, FX_ArraySize(buf), L"%y-%m-%dT%H:%M:%S", &bad_time);
// Ensure wcsftime handles bad-ish day without crashing (Feb 30).
struct tm feb_time = {};
feb_time.tm_year = 115; // 1900-based.
feb_time.tm_mon = 1; // 0-based.
feb_time.tm_mday = 30; // 1-based.
feb_time.tm_hour = 12;
feb_time.tm_min = 00;
feb_time.tm_sec = 00;
FXSYS_wcsftime(buf, FX_ArraySize(buf), L"%y-%m-%dT%H:%M:%S", &feb_time);
}
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