mirror of
https://github.com/fmtlib/fmt.git
synced 2024-12-25 15:21:54 +00:00
369 lines
13 KiB
C++
369 lines
13 KiB
C++
/*
|
|
printf tests.
|
|
|
|
Copyright (c) 2012-2014, Victor Zverovich
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright notice, this
|
|
list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright notice,
|
|
this list of conditions and the following disclaimer in the documentation
|
|
and/or other materials provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
|
|
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
|
|
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
|
|
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <climits>
|
|
#include <cstring>
|
|
|
|
#include "format.h"
|
|
#include "gtest-extra.h"
|
|
#include "util.h"
|
|
|
|
using fmt::format;
|
|
using fmt::FormatError;
|
|
|
|
const unsigned BIG_NUM = INT_MAX + 1u;
|
|
|
|
// Makes format string argument positional.
|
|
std::string make_positional(fmt::StringRef format) {
|
|
std::string s(format);
|
|
s.replace(s.find('%'), 1, "%1$");
|
|
return s;
|
|
}
|
|
|
|
#define EXPECT_PRINTF(expected_output, format, arg) \
|
|
EXPECT_EQ(expected_output, fmt::sprintf(format, arg)) \
|
|
<< "format: " << format; \
|
|
EXPECT_EQ(expected_output, fmt::sprintf(make_positional(format), arg))
|
|
|
|
TEST(PrintfTest, NoArgs) {
|
|
EXPECT_EQ("test", fmt::sprintf("test"));
|
|
}
|
|
|
|
TEST(PrintfTest, Escape) {
|
|
EXPECT_EQ("%", fmt::sprintf("%%"));
|
|
EXPECT_EQ("before %", fmt::sprintf("before %%"));
|
|
EXPECT_EQ("% after", fmt::sprintf("%% after"));
|
|
EXPECT_EQ("before % after", fmt::sprintf("before %% after"));
|
|
EXPECT_EQ("%s", fmt::sprintf("%%s"));
|
|
}
|
|
|
|
TEST(PrintfTest, PositionalArgs) {
|
|
EXPECT_EQ("42", fmt::sprintf("%1$d", 42));
|
|
EXPECT_EQ("before 42", fmt::sprintf("before %1$d", 42));
|
|
EXPECT_EQ("42 after", fmt::sprintf("%1$d after",42));
|
|
EXPECT_EQ("before 42 after", fmt::sprintf("before %1$d after", 42));
|
|
EXPECT_EQ("answer = 42", fmt::sprintf("%1$s = %2$d", "answer", 42));
|
|
EXPECT_EQ("42 is the answer",
|
|
fmt::sprintf("%2$d is the %1$s", "answer", 42));
|
|
EXPECT_EQ("abracadabra", fmt::sprintf("%1$s%2$s%1$s", "abra", "cad"));
|
|
}
|
|
|
|
TEST(PrintfTest, AutomaticArgIndexing) {
|
|
EXPECT_EQ("abc", fmt::sprintf("%c%c%c", 'a', 'b', 'c'));
|
|
}
|
|
|
|
TEST(PrintfTest, NumberIsTooBigInArgIndex) {
|
|
EXPECT_THROW_MSG(fmt::sprintf(format("%{}$", BIG_NUM)),
|
|
FormatError, "invalid format string");
|
|
EXPECT_THROW_MSG(fmt::sprintf(format("%{}$d", BIG_NUM)),
|
|
FormatError, "number is too big in format");
|
|
}
|
|
|
|
TEST(PrintfTest, SwitchArgIndexing) {
|
|
EXPECT_THROW_MSG(fmt::sprintf("%1$d%", 1, 2),
|
|
FormatError, "invalid format string");
|
|
EXPECT_THROW_MSG(fmt::sprintf(format("%1$d%{}d", BIG_NUM), 1, 2),
|
|
FormatError, "number is too big in format");
|
|
EXPECT_THROW_MSG(fmt::sprintf("%1$d%d", 1, 2),
|
|
FormatError, "cannot switch from manual to automatic argument indexing");
|
|
|
|
EXPECT_THROW_MSG(fmt::sprintf("%d%1$", 1, 2),
|
|
FormatError, "invalid format string");
|
|
EXPECT_THROW_MSG(fmt::sprintf(format("%d%{}$d", BIG_NUM), 1, 2),
|
|
FormatError, "number is too big in format");
|
|
EXPECT_THROW_MSG(fmt::sprintf("%d%1$d", 1, 2),
|
|
FormatError, "cannot switch from automatic to manual argument indexing");
|
|
|
|
// Indexing errors override width errors.
|
|
EXPECT_THROW_MSG(fmt::sprintf(format("%d%1${}d", BIG_NUM), 1, 2),
|
|
FormatError, "number is too big in format");
|
|
EXPECT_THROW_MSG(fmt::sprintf(format("%1$d%{}d", BIG_NUM), 1, 2),
|
|
FormatError, "number is too big in format");
|
|
}
|
|
|
|
TEST(PrintfTest, InvalidArgIndex) {
|
|
EXPECT_THROW_MSG(fmt::sprintf("%0$d", 42), FormatError,
|
|
"argument index is out of range in format");
|
|
EXPECT_THROW_MSG(fmt::sprintf("%2$d", 42), FormatError,
|
|
"argument index is out of range in format");
|
|
EXPECT_THROW_MSG(fmt::sprintf(format("%{}$d", INT_MAX), 42),
|
|
FormatError, "argument index is out of range in format");
|
|
|
|
EXPECT_THROW_MSG(fmt::sprintf("%2$", 42),
|
|
FormatError, "invalid format string");
|
|
EXPECT_THROW_MSG(fmt::sprintf(format("%{}$d", BIG_NUM), 42),
|
|
FormatError, "number is too big in format");
|
|
}
|
|
|
|
TEST(PrintfTest, DefaultAlignRight) {
|
|
EXPECT_PRINTF(" 42", "%5d", 42);
|
|
EXPECT_PRINTF(" abc", "%5s", "abc");
|
|
}
|
|
|
|
TEST(PrintfTest, ZeroFlag) {
|
|
EXPECT_PRINTF("00042", "%05d", 42);
|
|
EXPECT_PRINTF("-0042", "%05d", -42);
|
|
|
|
EXPECT_PRINTF("00042", "%05d", 42);
|
|
EXPECT_PRINTF("-0042", "%05d", -42);
|
|
EXPECT_PRINTF("-004.2", "%06g", -4.2);
|
|
|
|
EXPECT_PRINTF("+00042", "%00+6d", 42);
|
|
|
|
// '0' flag is ignored for non-numeric types.
|
|
EXPECT_PRINTF(" x", "%05c", 'x');
|
|
}
|
|
|
|
TEST(PrintfTest, PlusFlag) {
|
|
EXPECT_PRINTF("+42", "%+d", 42);
|
|
EXPECT_PRINTF("-42", "%+d", -42);
|
|
EXPECT_PRINTF("+0042", "%+05d", 42);
|
|
EXPECT_PRINTF("+0042", "%0++5d", 42);
|
|
|
|
// '+' flag is ignored for non-numeric types.
|
|
EXPECT_PRINTF("x", "%+c", 'x');
|
|
}
|
|
|
|
TEST(PrintfTest, MinusFlag) {
|
|
EXPECT_PRINTF("abc ", "%-5s", "abc");
|
|
EXPECT_PRINTF("abc ", "%0--5s", "abc");
|
|
}
|
|
|
|
TEST(PrintfTest, SpaceFlag) {
|
|
EXPECT_PRINTF(" 42", "% d", 42);
|
|
EXPECT_PRINTF("-42", "% d", -42);
|
|
EXPECT_PRINTF(" 0042", "% 05d", 42);
|
|
EXPECT_PRINTF(" 0042", "%0 5d", 42);
|
|
|
|
// ' ' flag is ignored for non-numeric types.
|
|
EXPECT_PRINTF("x", "% c", 'x');
|
|
}
|
|
|
|
TEST(PrintfTest, HashFlag) {
|
|
EXPECT_PRINTF("042", "%#o", 042);
|
|
EXPECT_PRINTF("-042", "%#o", -042);
|
|
EXPECT_PRINTF("0", "%#o", 0);
|
|
|
|
EXPECT_PRINTF("0x42", "%#x", 0x42);
|
|
EXPECT_PRINTF("0X42", "%#X", 0x42);
|
|
EXPECT_PRINTF("-0x42", "%#x", -0x42);
|
|
EXPECT_PRINTF("0", "%#x", 0);
|
|
|
|
EXPECT_PRINTF("0x0042", "%#06x", 0x42);
|
|
EXPECT_PRINTF("0x0042", "%0##6x", 0x42);
|
|
|
|
EXPECT_PRINTF("-42.000000", "%#f", -42.0);
|
|
EXPECT_PRINTF("-42.000000", "%#F", -42.0);
|
|
|
|
char buffer[BUFFER_SIZE];
|
|
safe_sprintf(buffer, "%#e", -42.0);
|
|
EXPECT_PRINTF(buffer, "%#e", -42.0);
|
|
safe_sprintf(buffer, "%#E", -42.0);
|
|
EXPECT_PRINTF(buffer, "%#E", -42.0);
|
|
|
|
EXPECT_PRINTF("-42.0000", "%#g", -42.0);
|
|
EXPECT_PRINTF("-42.0000", "%#G", -42.0);
|
|
|
|
safe_sprintf(buffer, "%#a", 16.0);
|
|
EXPECT_PRINTF(buffer, "%#a", 16.0);
|
|
safe_sprintf(buffer, "%#A", 16.0);
|
|
EXPECT_PRINTF(buffer, "%#A", 16.0);
|
|
|
|
// '#' flag is ignored for non-numeric types.
|
|
EXPECT_PRINTF("x", "%#c", 'x');
|
|
}
|
|
|
|
TEST(PrintfTest, Width) {
|
|
EXPECT_PRINTF(" abc", "%5s", "abc");
|
|
|
|
// Width cannot be specified twice.
|
|
EXPECT_THROW_MSG(fmt::sprintf("%5-5d", 42), FormatError,
|
|
"unknown format code '-' for integer");
|
|
|
|
EXPECT_THROW_MSG(fmt::sprintf(format("%{}d", BIG_NUM), 42),
|
|
FormatError, "number is too big in format");
|
|
EXPECT_THROW_MSG(fmt::sprintf(format("%1${}d", BIG_NUM), 42),
|
|
FormatError, "number is too big in format");
|
|
}
|
|
|
|
TEST(PrintfTest, DynamicWidth) {
|
|
EXPECT_EQ(" 42", fmt::sprintf("%*d", 5, 42));
|
|
EXPECT_EQ("42 ", fmt::sprintf("%*d", -5, 42));
|
|
EXPECT_THROW_MSG(fmt::sprintf("%*d", 5.0, 42), FormatError,
|
|
"width is not integer");
|
|
EXPECT_THROW_MSG(fmt::sprintf("%*d"), FormatError,
|
|
"argument index is out of range in format");
|
|
EXPECT_THROW_MSG(fmt::sprintf("%*d", BIG_NUM, 42), FormatError,
|
|
"number is too big in format");
|
|
}
|
|
|
|
TEST(PrintfTest, IntPrecision) {
|
|
EXPECT_PRINTF("00042", "%.5d", 42);
|
|
EXPECT_PRINTF("-00042", "%.5d", -42);
|
|
EXPECT_PRINTF("00042", "%.5x", 0x42);
|
|
EXPECT_PRINTF("0x00042", "%#.5x", 0x42);
|
|
EXPECT_PRINTF("00042", "%.5o", 042);
|
|
EXPECT_PRINTF("00042", "%#.5o", 042);
|
|
|
|
EXPECT_PRINTF(" 00042", "%7.5d", 42);
|
|
EXPECT_PRINTF(" 00042", "%7.5x", 0x42);
|
|
EXPECT_PRINTF(" 0x00042", "%#10.5x", 0x42);
|
|
EXPECT_PRINTF(" 00042", "%7.5o", 042);
|
|
EXPECT_PRINTF(" 00042", "%#10.5o", 042);
|
|
|
|
EXPECT_PRINTF("00042 ", "%-7.5d", 42);
|
|
EXPECT_PRINTF("00042 ", "%-7.5x", 0x42);
|
|
EXPECT_PRINTF("0x00042 ", "%-#10.5x", 0x42);
|
|
EXPECT_PRINTF("00042 ", "%-7.5o", 042);
|
|
EXPECT_PRINTF("00042 ", "%-#10.5o", 042);
|
|
}
|
|
|
|
TEST(PrintfTest, FloatPrecision) {
|
|
char buffer[BUFFER_SIZE];
|
|
safe_sprintf(buffer, "%.3e", 1234.5678);
|
|
EXPECT_PRINTF(buffer, "%.3e", 1234.5678);
|
|
EXPECT_PRINTF("1234.568", "%.3f", 1234.5678);
|
|
safe_sprintf(buffer, "%.3g", 1234.5678);
|
|
EXPECT_PRINTF(buffer, "%.3g", 1234.5678);
|
|
safe_sprintf(buffer, "%.3a", 1234.5678);
|
|
EXPECT_PRINTF(buffer, "%.3a", 1234.5678);
|
|
}
|
|
|
|
TEST(PrintfTest, IgnorePrecisionForNonNumericArg) {
|
|
EXPECT_PRINTF("abc", "%.5s", "abc");
|
|
}
|
|
|
|
TEST(PrintfTest, DynamicPrecision) {
|
|
EXPECT_EQ("00042", fmt::sprintf("%.*d", 5, 42));
|
|
EXPECT_EQ("42", fmt::sprintf("%.*d", -5, 42));
|
|
EXPECT_THROW_MSG(fmt::sprintf("%.*d", 5.0, 42), FormatError,
|
|
"precision is not integer");
|
|
EXPECT_THROW_MSG(fmt::sprintf("%.*d"), FormatError,
|
|
"argument index is out of range in format");
|
|
EXPECT_THROW_MSG(fmt::sprintf("%.*d", BIG_NUM, 42), FormatError,
|
|
"number is too big in format");
|
|
if (sizeof(fmt::LongLong) != sizeof(int)) {
|
|
fmt::LongLong prec = static_cast<fmt::LongLong>(INT_MIN) - 1;
|
|
EXPECT_THROW_MSG(fmt::sprintf("%.*d", prec, 42), FormatError,
|
|
"number is too big in format");
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
struct MakeSigned { typedef T Type; };
|
|
|
|
#define SPECIALIZE_MAKE_SIGNED(T, S) \
|
|
template <> \
|
|
struct MakeSigned<T> { typedef S Type; }
|
|
|
|
SPECIALIZE_MAKE_SIGNED(char, signed char);
|
|
SPECIALIZE_MAKE_SIGNED(unsigned char, signed char);
|
|
SPECIALIZE_MAKE_SIGNED(unsigned short, short);
|
|
SPECIALIZE_MAKE_SIGNED(unsigned, int);
|
|
SPECIALIZE_MAKE_SIGNED(unsigned long, long);
|
|
SPECIALIZE_MAKE_SIGNED(fmt::ULongLong, fmt::LongLong);
|
|
|
|
template <typename T, typename U>
|
|
void TestLength(const char *length_spec, U value) {
|
|
fmt::LongLong signed_value = value;
|
|
fmt::ULongLong unsigned_value = value;
|
|
// Apply integer promotion to the argument.
|
|
U max = std::numeric_limits<U>::max();
|
|
if (max <= std::numeric_limits<int>::max()) {
|
|
signed_value = static_cast<int>(value);
|
|
unsigned_value = static_cast<int>(value);
|
|
} else if (max <= std::numeric_limits<unsigned>::max()) {
|
|
signed_value = static_cast<unsigned>(value);
|
|
unsigned_value = static_cast<unsigned>(value);
|
|
}
|
|
using fmt::internal::MakeUnsigned;
|
|
if (sizeof(U) <= sizeof(int) && sizeof(int) < sizeof(T)) {
|
|
signed_value = unsigned_value =
|
|
static_cast<typename MakeUnsigned<unsigned>::Type>(value);
|
|
} else {
|
|
signed_value = static_cast<typename MakeSigned<T>::Type>(value);
|
|
unsigned_value = static_cast<typename MakeUnsigned<T>::Type>(value);
|
|
}
|
|
std::ostringstream os;
|
|
os << signed_value;
|
|
EXPECT_PRINTF(os.str(), fmt::format("%{}d", length_spec), value);
|
|
EXPECT_PRINTF(os.str(), fmt::format("%{}i", length_spec), value);
|
|
os.str("");
|
|
os << unsigned_value;
|
|
EXPECT_PRINTF(os.str(), fmt::format("%{}u", length_spec), value);
|
|
os.str("");
|
|
os << std::oct << unsigned_value;
|
|
EXPECT_PRINTF(os.str(), fmt::format("%{}o", length_spec), value);
|
|
os.str("");
|
|
os << std::hex << unsigned_value;
|
|
EXPECT_PRINTF(os.str(), fmt::format("%{}x", length_spec), value);
|
|
os.str("");
|
|
os << std::hex << std::uppercase << unsigned_value;
|
|
EXPECT_PRINTF(os.str(), fmt::format("%{}X", length_spec), value);
|
|
}
|
|
|
|
template <typename T>
|
|
void TestLength(const char *length_spec) {
|
|
T min = std::numeric_limits<T>::min(), max = std::numeric_limits<T>::max();
|
|
TestLength<T>(length_spec, 42);
|
|
TestLength<T>(length_spec, -42);
|
|
TestLength<T>(length_spec, min);
|
|
TestLength<T>(length_spec, max);
|
|
if (min > std::numeric_limits<fmt::LongLong>::min())
|
|
TestLength<T>(length_spec, fmt::LongLong(min) - 1);
|
|
if (max < std::numeric_limits<fmt::LongLong>::max())
|
|
TestLength<T>(length_spec, fmt::LongLong(max) + 1);
|
|
TestLength<T>(length_spec, std::numeric_limits<short>::min());
|
|
TestLength<T>(length_spec, std::numeric_limits<unsigned short>::max());
|
|
TestLength<T>(length_spec, std::numeric_limits<int>::min());
|
|
TestLength<T>(length_spec, std::numeric_limits<int>::max());
|
|
TestLength<T>(length_spec, std::numeric_limits<unsigned>::min());
|
|
TestLength<T>(length_spec, std::numeric_limits<unsigned>::max());
|
|
TestLength<T>(length_spec, std::numeric_limits<fmt::LongLong>::min());
|
|
TestLength<T>(length_spec, std::numeric_limits<fmt::LongLong>::max());
|
|
TestLength<T>(length_spec, std::numeric_limits<fmt::ULongLong>::min());
|
|
TestLength<T>(length_spec, std::numeric_limits<fmt::ULongLong>::max());
|
|
}
|
|
|
|
TEST(PrintfTest, Length) {
|
|
TestLength<char>("hh");
|
|
TestLength<signed char>("hh");
|
|
TestLength<unsigned char>("hh");
|
|
TestLength<short>("h");
|
|
TestLength<unsigned short>("h");
|
|
TestLength<long>("l");
|
|
TestLength<unsigned long>("l");
|
|
TestLength<fmt::LongLong>("ll");
|
|
TestLength<fmt::ULongLong>("ll");
|
|
TestLength<intmax_t>("j");
|
|
TestLength<std::size_t>("z");
|
|
TestLength<std::ptrdiff_t>("t");
|
|
// TODO: test 'L' & 'll'
|
|
}
|
|
|
|
// TODO: test type specifier
|