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qpdf/libtests/qutil.cc
2017-08-29 12:28:32 -04:00

277 lines
7.5 KiB
C++

#include <iostream>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <qpdf/QUtil.hh>
#include <qpdf/PointerHolder.hh>
#include <string.h>
#include <limits.h>
#ifdef _WIN32
# include <io.h>
#else
# include <unistd.h>
#endif
template <class int_T>
void test_to_number(char const* str, int_T wanted, bool error,
int_T (*fn)(char const*))
{
bool threw = false;
bool worked = false;
int_T result = 0;
try
{
result = fn(str);
worked = (wanted == result);
}
catch (std::runtime_error)
{
threw = true;
}
if (threw)
{
if (error)
{
std::cout << str << " to int threw: PASSED" << std::endl;
}
else
{
std::cout << str << " to int threw but wanted "
<< wanted << std::endl;
}
}
else
{
if (worked)
{
std::cout << str << " to int: PASSED" << std::endl;
}
else
{
std::cout << str << " to int failed; got " << result << std::endl;
}
}
}
void test_to_int(char const* str, int wanted, bool error)
{
test_to_number(str, wanted, error, QUtil::string_to_int);
}
void test_to_ll(char const* str, long long wanted, bool error)
{
test_to_number(str, wanted, error, QUtil::string_to_ll);
}
void string_conversion_test()
{
std::cout << QUtil::int_to_string(16059) << std::endl
<< QUtil::int_to_string(16059, 7) << std::endl
<< QUtil::int_to_string(16059, -7) << std::endl
<< QUtil::double_to_string(3.14159) << std::endl
<< QUtil::double_to_string(3.14159, 3) << std::endl
<< QUtil::double_to_string(1000.123, -1024) << std::endl
<< QUtil::double_to_string(.1234, 5) << std::endl
<< QUtil::double_to_string(.0001234, 5) << std::endl
<< QUtil::double_to_string(.123456, 5) << std::endl
<< QUtil::double_to_string(.000123456, 5) << std::endl
<< QUtil::int_to_string_base(16059, 10) << std::endl
<< QUtil::int_to_string_base(16059, 8) << std::endl
<< QUtil::int_to_string_base(16059, 16) << std::endl;
std::string embedded_null = "one";
embedded_null += '\0';
embedded_null += "two";
std::cout << embedded_null.c_str() << std::endl;
std::cout << embedded_null.length() << std::endl;
char* tmp = QUtil::copy_string(embedded_null);
if (memcmp(tmp, embedded_null.c_str(), 7) == 0)
{
std::cout << "compare okay" << std::endl;
}
else
{
std::cout << "compare failed" << std::endl;
}
delete [] tmp;
std::string int_max_str = QUtil::int_to_string(INT_MAX);
std::string int_min_str = QUtil::int_to_string(INT_MIN);
long long int_max_plus_1 = static_cast<long long>(INT_MAX) + 1;
long long int_min_minus_1 = static_cast<long long>(INT_MIN) - 1;
std::string int_max_plus_1_str = QUtil::int_to_string(int_max_plus_1);
std::string int_min_minus_1_str = QUtil::int_to_string(int_min_minus_1);
test_to_int(int_min_str.c_str(), INT_MIN, false);
test_to_int(int_max_str.c_str(), INT_MAX, false);
test_to_int(int_max_plus_1_str.c_str(), 0, true);
test_to_int(int_min_minus_1_str.c_str(), 0, true);
test_to_int("9999999999999999999999999", 0, true);
test_to_ll(int_max_plus_1_str.c_str(), int_max_plus_1, false);
test_to_ll(int_min_minus_1_str.c_str(), int_min_minus_1, false);
test_to_ll("99999999999999999999999999999999999999999999999999", 0, true);
}
void os_wrapper_test()
{
try
{
std::cout << "before remove" << std::endl;
QUtil::os_wrapper("remove file",
remove("/this/file/does/not/exist"));
std::cout << "after remove" << std::endl;
}
catch (std::runtime_error& s)
{
std::cout << "exception: " << s.what() << std::endl;
}
}
void fopen_wrapper_test()
{
try
{
std::cout << "before fopen" << std::endl;
FILE* f = QUtil::safe_fopen("/this/file/does/not/exist", "r");
std::cout << "after fopen" << std::endl;
(void) fclose(f);
}
catch (std::runtime_error& s)
{
std::cout << "exception: " << s.what() << std::endl;
}
}
void getenv_test()
{
std::string val;
std::cout << "IN_TESTSUITE: " << QUtil::get_env("IN_TESTSUITE", &val)
<< ": " << val << std::endl;
// Hopefully this environment variable is not defined.
std::cout << "HAGOOGAMAGOOGLE: " << QUtil::get_env("HAGOOGAMAGOOGLE")
<< std::endl;
}
static void print_utf8(unsigned long val)
{
std::string result = QUtil::toUTF8(val);
std::cout << "0x" << QUtil::int_to_string_base(val, 16) << " ->";
if (val < 0xfffe)
{
std::cout << " " << result;
}
else
{
// Emacs has trouble with utf-8 encoding files with characters
// outside the 16-bit portion, so just show the character
// values.
for (std::string::iterator iter = result.begin();
iter != result.end(); ++iter)
{
std::cout << " " << QUtil::int_to_string_base(
static_cast<int>(static_cast<unsigned char>(*iter)), 16, 2);
}
}
std::cout << std::endl;
}
void to_utf8_test()
{
print_utf8(0x41UL);
print_utf8(0xF7UL);
print_utf8(0x3c0UL);
print_utf8(0x16059UL);
print_utf8(0x7fffffffUL);
try
{
print_utf8(0x80000000UL);
}
catch (std::runtime_error& e)
{
std::cout << "0x80000000: " << e.what() << std::endl;
}
}
void print_whoami(char const* str)
{
PointerHolder<char> dup(true, QUtil::copy_string(str));
std::cout << QUtil::getWhoami(dup.getPointer()) << std::endl;
}
void get_whoami_test()
{
print_whoami("a/b/c/quack1");
print_whoami("a/b/c/quack2.exe");
print_whoami("a\\b\\c\\quack3");
print_whoami("a\\b\\c\\quack4.exe");
}
void assert_same_file(char const* file1, char const* file2, bool expected)
{
bool actual = QUtil::same_file(file1, file2);
std::cout << "file1: -" << (file1 ? file1 : "(null)") << "-, file2: -"
<< (file2 ? file2 : "(null)") << "-; same: "
<< actual << ": " << ((actual == expected) ? "PASS" : "FAIL")
<< std::endl;
}
void same_file_test()
{
try
{
fclose(QUtil::safe_fopen("qutil.out", "r"));
fclose(QUtil::safe_fopen("other-file", "r"));
}
catch (std::exception)
{
std::cout << "same_file_test expects to have qutil.out and other-file"
" exist in the current directory\n";
return;
}
assert_same_file("qutil.out", "./qutil.out", true);
assert_same_file("qutil.out", "qutil.out", true);
assert_same_file("qutil.out", "other-file", false);
assert_same_file("qutil.out", "", false);
assert_same_file("qutil.out", 0, false);
assert_same_file("", "qutil.out", false);
}
void read_lines_from_file_test()
{
std::list<std::string> lines = QUtil::read_lines_from_file("other-file");
for (std::list<std::string>::iterator iter = lines.begin();
iter != lines.end(); ++iter)
{
std::cout << *iter << std::endl;
}
}
int main(int argc, char* argv[])
{
try
{
string_conversion_test();
std::cout << "----" << std::endl;
os_wrapper_test();
std::cout << "----" << std::endl;
fopen_wrapper_test();
std::cout << "----" << std::endl;
getenv_test();
std::cout << "----" << std::endl;
to_utf8_test();
std::cout << "----" << std::endl;
get_whoami_test();
std::cout << "----" << std::endl;
same_file_test();
std::cout << "----" << std::endl;
read_lines_from_file_test();
}
catch (std::exception& e)
{
std::cout << "unexpected exception: " << e.what() << std::endl;
}
return 0;
}