8a394b19c1
-- cae9f0c87632d690ec3f471e181be247fe4fb025 by Abseil Team <absl-team@google.com>: Run IWYU on some headers. PiperOrigin-RevId: 248749194 -- f57dcac97cacbe31769a8646020a99b6686987dc by Samuel Benzaquen <sbenza@google.com>: Accept vector<bool>::reference in StrFormat and friends. The proxy types might overload `operator&`. Use std::addressof instead. PiperOrigin-RevId: 248619661 GitOrigin-RevId: cae9f0c87632d690ec3f471e181be247fe4fb025 Change-Id: Iacf5d46a59d1d5f1fa1fd4a1e0d0de8c6cbedb3e
590 lines
20 KiB
C++
590 lines
20 KiB
C++
#include <errno.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <cctype>
|
|
#include <cmath>
|
|
#include <string>
|
|
|
|
#include "gtest/gtest.h"
|
|
#include "absl/strings/internal/str_format/bind.h"
|
|
|
|
namespace absl {
|
|
namespace str_format_internal {
|
|
namespace {
|
|
|
|
template <typename T, size_t N>
|
|
size_t ArraySize(T (&)[N]) {
|
|
return N;
|
|
}
|
|
|
|
std::string LengthModFor(float) { return ""; }
|
|
std::string LengthModFor(double) { return ""; }
|
|
std::string LengthModFor(long double) { return "L"; }
|
|
std::string LengthModFor(char) { return "hh"; }
|
|
std::string LengthModFor(signed char) { return "hh"; }
|
|
std::string LengthModFor(unsigned char) { return "hh"; }
|
|
std::string LengthModFor(short) { return "h"; } // NOLINT
|
|
std::string LengthModFor(unsigned short) { return "h"; } // NOLINT
|
|
std::string LengthModFor(int) { return ""; }
|
|
std::string LengthModFor(unsigned) { return ""; }
|
|
std::string LengthModFor(long) { return "l"; } // NOLINT
|
|
std::string LengthModFor(unsigned long) { return "l"; } // NOLINT
|
|
std::string LengthModFor(long long) { return "ll"; } // NOLINT
|
|
std::string LengthModFor(unsigned long long) { return "ll"; } // NOLINT
|
|
|
|
std::string EscCharImpl(int v) {
|
|
if (std::isprint(static_cast<unsigned char>(v))) {
|
|
return std::string(1, static_cast<char>(v));
|
|
}
|
|
char buf[64];
|
|
int n = snprintf(buf, sizeof(buf), "\\%#.2x",
|
|
static_cast<unsigned>(v & 0xff));
|
|
assert(n > 0 && n < sizeof(buf));
|
|
return std::string(buf, n);
|
|
}
|
|
|
|
std::string Esc(char v) { return EscCharImpl(v); }
|
|
std::string Esc(signed char v) { return EscCharImpl(v); }
|
|
std::string Esc(unsigned char v) { return EscCharImpl(v); }
|
|
|
|
template <typename T>
|
|
std::string Esc(const T &v) {
|
|
std::ostringstream oss;
|
|
oss << v;
|
|
return oss.str();
|
|
}
|
|
|
|
void StrAppend(std::string *dst, const char *format, va_list ap) {
|
|
// First try with a small fixed size buffer
|
|
static const int kSpaceLength = 1024;
|
|
char space[kSpaceLength];
|
|
|
|
// It's possible for methods that use a va_list to invalidate
|
|
// the data in it upon use. The fix is to make a copy
|
|
// of the structure before using it and use that copy instead.
|
|
va_list backup_ap;
|
|
va_copy(backup_ap, ap);
|
|
int result = vsnprintf(space, kSpaceLength, format, backup_ap);
|
|
va_end(backup_ap);
|
|
if (result < kSpaceLength) {
|
|
if (result >= 0) {
|
|
// Normal case -- everything fit.
|
|
dst->append(space, result);
|
|
return;
|
|
}
|
|
if (result < 0) {
|
|
// Just an error.
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Increase the buffer size to the size requested by vsnprintf,
|
|
// plus one for the closing \0.
|
|
int length = result + 1;
|
|
char *buf = new char[length];
|
|
|
|
// Restore the va_list before we use it again
|
|
va_copy(backup_ap, ap);
|
|
result = vsnprintf(buf, length, format, backup_ap);
|
|
va_end(backup_ap);
|
|
|
|
if (result >= 0 && result < length) {
|
|
// It fit
|
|
dst->append(buf, result);
|
|
}
|
|
delete[] buf;
|
|
}
|
|
|
|
std::string StrPrint(const char *format, ...) {
|
|
va_list ap;
|
|
va_start(ap, format);
|
|
std::string result;
|
|
StrAppend(&result, format, ap);
|
|
va_end(ap);
|
|
return result;
|
|
}
|
|
|
|
class FormatConvertTest : public ::testing::Test { };
|
|
|
|
template <typename T>
|
|
void TestStringConvert(const T& str) {
|
|
const FormatArgImpl args[] = {FormatArgImpl(str)};
|
|
struct Expectation {
|
|
const char *out;
|
|
const char *fmt;
|
|
};
|
|
const Expectation kExpect[] = {
|
|
{"hello", "%1$s" },
|
|
{"", "%1$.s" },
|
|
{"", "%1$.0s" },
|
|
{"h", "%1$.1s" },
|
|
{"he", "%1$.2s" },
|
|
{"hello", "%1$.10s" },
|
|
{" hello", "%1$6s" },
|
|
{" he", "%1$5.2s" },
|
|
{"he ", "%1$-5.2s" },
|
|
{"hello ", "%1$-6.10s" },
|
|
};
|
|
for (const Expectation &e : kExpect) {
|
|
UntypedFormatSpecImpl format(e.fmt);
|
|
EXPECT_EQ(e.out, FormatPack(format, absl::MakeSpan(args)));
|
|
}
|
|
}
|
|
|
|
TEST_F(FormatConvertTest, BasicString) {
|
|
TestStringConvert("hello"); // As char array.
|
|
TestStringConvert(static_cast<const char*>("hello"));
|
|
TestStringConvert(std::string("hello"));
|
|
TestStringConvert(string_view("hello"));
|
|
}
|
|
|
|
TEST_F(FormatConvertTest, NullString) {
|
|
const char* p = nullptr;
|
|
UntypedFormatSpecImpl format("%s");
|
|
EXPECT_EQ("", FormatPack(format, {FormatArgImpl(p)}));
|
|
}
|
|
|
|
TEST_F(FormatConvertTest, StringPrecision) {
|
|
// We cap at the precision.
|
|
char c = 'a';
|
|
const char* p = &c;
|
|
UntypedFormatSpecImpl format("%.1s");
|
|
EXPECT_EQ("a", FormatPack(format, {FormatArgImpl(p)}));
|
|
|
|
// We cap at the nul terminator.
|
|
p = "ABC";
|
|
UntypedFormatSpecImpl format2("%.10s");
|
|
EXPECT_EQ("ABC", FormatPack(format2, {FormatArgImpl(p)}));
|
|
}
|
|
|
|
TEST_F(FormatConvertTest, Pointer) {
|
|
#ifdef _MSC_VER
|
|
// MSVC's printf implementation prints pointers differently. We can't easily
|
|
// compare our implementation to theirs.
|
|
return;
|
|
#endif
|
|
static int x = 0;
|
|
const int *xp = &x;
|
|
char c = 'h';
|
|
char *mcp = &c;
|
|
const char *cp = "hi";
|
|
const char *cnil = nullptr;
|
|
const int *inil = nullptr;
|
|
using VoidF = void (*)();
|
|
VoidF fp = [] {}, fnil = nullptr;
|
|
volatile char vc;
|
|
volatile char* vcp = &vc;
|
|
volatile char* vcnil = nullptr;
|
|
const FormatArgImpl args[] = {
|
|
FormatArgImpl(xp), FormatArgImpl(cp), FormatArgImpl(inil),
|
|
FormatArgImpl(cnil), FormatArgImpl(mcp), FormatArgImpl(fp),
|
|
FormatArgImpl(fnil), FormatArgImpl(vcp), FormatArgImpl(vcnil),
|
|
};
|
|
struct Expectation {
|
|
std::string out;
|
|
const char *fmt;
|
|
};
|
|
const Expectation kExpect[] = {
|
|
{StrPrint("%p", &x), "%p"},
|
|
{StrPrint("%20p", &x), "%20p"},
|
|
{StrPrint("%.1p", &x), "%.1p"},
|
|
{StrPrint("%.20p", &x), "%.20p"},
|
|
{StrPrint("%30.20p", &x), "%30.20p"},
|
|
|
|
{StrPrint("%-p", &x), "%-p"},
|
|
{StrPrint("%-20p", &x), "%-20p"},
|
|
{StrPrint("%-.1p", &x), "%-.1p"},
|
|
{StrPrint("%.20p", &x), "%.20p"},
|
|
{StrPrint("%-30.20p", &x), "%-30.20p"},
|
|
|
|
{StrPrint("%p", cp), "%2$p"}, // const char*
|
|
{"(nil)", "%3$p"}, // null const char *
|
|
{"(nil)", "%4$p"}, // null const int *
|
|
{StrPrint("%p", mcp), "%5$p"}, // nonconst char*
|
|
|
|
{StrPrint("%p", fp), "%6$p"}, // function pointer
|
|
{StrPrint("%p", vcp), "%8$p"}, // function pointer
|
|
|
|
#ifndef __APPLE__
|
|
// Apple's printf differs here (0x0 vs. nil)
|
|
{StrPrint("%p", fnil), "%7$p"}, // null function pointer
|
|
{StrPrint("%p", vcnil), "%9$p"}, // null function pointer
|
|
#endif
|
|
};
|
|
for (const Expectation &e : kExpect) {
|
|
UntypedFormatSpecImpl format(e.fmt);
|
|
EXPECT_EQ(e.out, FormatPack(format, absl::MakeSpan(args))) << e.fmt;
|
|
}
|
|
}
|
|
|
|
struct Cardinal {
|
|
enum Pos { k1 = 1, k2 = 2, k3 = 3 };
|
|
enum Neg { kM1 = -1, kM2 = -2, kM3 = -3 };
|
|
};
|
|
|
|
TEST_F(FormatConvertTest, Enum) {
|
|
const Cardinal::Pos k3 = Cardinal::k3;
|
|
const Cardinal::Neg km3 = Cardinal::kM3;
|
|
const FormatArgImpl args[] = {FormatArgImpl(k3), FormatArgImpl(km3)};
|
|
UntypedFormatSpecImpl format("%1$d");
|
|
UntypedFormatSpecImpl format2("%2$d");
|
|
EXPECT_EQ("3", FormatPack(format, absl::MakeSpan(args)));
|
|
EXPECT_EQ("-3", FormatPack(format2, absl::MakeSpan(args)));
|
|
}
|
|
|
|
template <typename T>
|
|
class TypedFormatConvertTest : public FormatConvertTest { };
|
|
|
|
TYPED_TEST_SUITE_P(TypedFormatConvertTest);
|
|
|
|
std::vector<std::string> AllFlagCombinations() {
|
|
const char kFlags[] = {'-', '#', '0', '+', ' '};
|
|
std::vector<std::string> result;
|
|
for (size_t fsi = 0; fsi < (1ull << ArraySize(kFlags)); ++fsi) {
|
|
std::string flag_set;
|
|
for (size_t fi = 0; fi < ArraySize(kFlags); ++fi)
|
|
if (fsi & (1ull << fi))
|
|
flag_set += kFlags[fi];
|
|
result.push_back(flag_set);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
TYPED_TEST_P(TypedFormatConvertTest, AllIntsWithFlags) {
|
|
typedef TypeParam T;
|
|
typedef typename std::make_unsigned<T>::type UnsignedT;
|
|
using remove_volatile_t = typename std::remove_volatile<T>::type;
|
|
const T kMin = std::numeric_limits<remove_volatile_t>::min();
|
|
const T kMax = std::numeric_limits<remove_volatile_t>::max();
|
|
const T kVals[] = {
|
|
remove_volatile_t(1),
|
|
remove_volatile_t(2),
|
|
remove_volatile_t(3),
|
|
remove_volatile_t(123),
|
|
remove_volatile_t(-1),
|
|
remove_volatile_t(-2),
|
|
remove_volatile_t(-3),
|
|
remove_volatile_t(-123),
|
|
remove_volatile_t(0),
|
|
kMax - remove_volatile_t(1),
|
|
kMax,
|
|
kMin + remove_volatile_t(1),
|
|
kMin,
|
|
};
|
|
const char kConvChars[] = {'d', 'i', 'u', 'o', 'x', 'X'};
|
|
const std::string kWid[] = {"", "4", "10"};
|
|
const std::string kPrec[] = {"", ".", ".0", ".4", ".10"};
|
|
|
|
const std::vector<std::string> flag_sets = AllFlagCombinations();
|
|
|
|
for (size_t vi = 0; vi < ArraySize(kVals); ++vi) {
|
|
const T val = kVals[vi];
|
|
SCOPED_TRACE(Esc(val));
|
|
const FormatArgImpl args[] = {FormatArgImpl(val)};
|
|
for (size_t ci = 0; ci < ArraySize(kConvChars); ++ci) {
|
|
const char conv_char = kConvChars[ci];
|
|
for (size_t fsi = 0; fsi < flag_sets.size(); ++fsi) {
|
|
const std::string &flag_set = flag_sets[fsi];
|
|
for (size_t wi = 0; wi < ArraySize(kWid); ++wi) {
|
|
const std::string &wid = kWid[wi];
|
|
for (size_t pi = 0; pi < ArraySize(kPrec); ++pi) {
|
|
const std::string &prec = kPrec[pi];
|
|
|
|
const bool is_signed_conv = (conv_char == 'd' || conv_char == 'i');
|
|
const bool is_unsigned_to_signed =
|
|
!std::is_signed<T>::value && is_signed_conv;
|
|
// Don't consider sign-related flags '+' and ' ' when doing
|
|
// unsigned to signed conversions.
|
|
if (is_unsigned_to_signed &&
|
|
flag_set.find_first_of("+ ") != std::string::npos) {
|
|
continue;
|
|
}
|
|
|
|
std::string new_fmt("%");
|
|
new_fmt += flag_set;
|
|
new_fmt += wid;
|
|
new_fmt += prec;
|
|
// old and new always agree up to here.
|
|
std::string old_fmt = new_fmt;
|
|
new_fmt += conv_char;
|
|
std::string old_result;
|
|
if (is_unsigned_to_signed) {
|
|
// don't expect agreement on unsigned formatted as signed,
|
|
// as printf can't do that conversion properly. For those
|
|
// cases, we do expect agreement with printf with a "%u"
|
|
// and the unsigned equivalent of 'val'.
|
|
UnsignedT uval = val;
|
|
old_fmt += LengthModFor(uval);
|
|
old_fmt += "u";
|
|
old_result = StrPrint(old_fmt.c_str(), uval);
|
|
} else {
|
|
old_fmt += LengthModFor(val);
|
|
old_fmt += conv_char;
|
|
old_result = StrPrint(old_fmt.c_str(), val);
|
|
}
|
|
|
|
SCOPED_TRACE(std::string() + " old_fmt: \"" + old_fmt +
|
|
"\"'"
|
|
" new_fmt: \"" +
|
|
new_fmt + "\"");
|
|
UntypedFormatSpecImpl format(new_fmt);
|
|
EXPECT_EQ(old_result, FormatPack(format, absl::MakeSpan(args)));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TYPED_TEST_P(TypedFormatConvertTest, Char) {
|
|
typedef TypeParam T;
|
|
using remove_volatile_t = typename std::remove_volatile<T>::type;
|
|
static const T kMin = std::numeric_limits<remove_volatile_t>::min();
|
|
static const T kMax = std::numeric_limits<remove_volatile_t>::max();
|
|
T kVals[] = {
|
|
remove_volatile_t(1), remove_volatile_t(2), remove_volatile_t(10),
|
|
remove_volatile_t(-1), remove_volatile_t(-2), remove_volatile_t(-10),
|
|
remove_volatile_t(0),
|
|
kMin + remove_volatile_t(1), kMin,
|
|
kMax - remove_volatile_t(1), kMax
|
|
};
|
|
for (const T &c : kVals) {
|
|
const FormatArgImpl args[] = {FormatArgImpl(c)};
|
|
UntypedFormatSpecImpl format("%c");
|
|
EXPECT_EQ(StrPrint("%c", c), FormatPack(format, absl::MakeSpan(args)));
|
|
}
|
|
}
|
|
|
|
REGISTER_TYPED_TEST_CASE_P(TypedFormatConvertTest, AllIntsWithFlags, Char);
|
|
|
|
typedef ::testing::Types<
|
|
int, unsigned, volatile int,
|
|
short, unsigned short,
|
|
long, unsigned long,
|
|
long long, unsigned long long,
|
|
signed char, unsigned char, char>
|
|
AllIntTypes;
|
|
INSTANTIATE_TYPED_TEST_CASE_P(TypedFormatConvertTestWithAllIntTypes,
|
|
TypedFormatConvertTest, AllIntTypes);
|
|
|
|
TEST_F(FormatConvertTest, VectorBool) {
|
|
// Make sure vector<bool>'s values behave as bools.
|
|
std::vector<bool> v = {true, false};
|
|
const std::vector<bool> cv = {true, false};
|
|
EXPECT_EQ("1,0,1,0",
|
|
FormatPack(UntypedFormatSpecImpl("%d,%d,%d,%d"),
|
|
absl::Span<const FormatArgImpl>(
|
|
{FormatArgImpl(v[0]), FormatArgImpl(v[1]),
|
|
FormatArgImpl(cv[0]), FormatArgImpl(cv[1])})));
|
|
}
|
|
|
|
TEST_F(FormatConvertTest, Uint128) {
|
|
absl::uint128 v = static_cast<absl::uint128>(0x1234567890abcdef) * 1979;
|
|
absl::uint128 max = absl::Uint128Max();
|
|
const FormatArgImpl args[] = {FormatArgImpl(v), FormatArgImpl(max)};
|
|
|
|
struct Case {
|
|
const char* format;
|
|
const char* expected;
|
|
} cases[] = {
|
|
{"%1$d", "2595989796776606496405"},
|
|
{"%1$30d", " 2595989796776606496405"},
|
|
{"%1$-30d", "2595989796776606496405 "},
|
|
{"%1$u", "2595989796776606496405"},
|
|
{"%1$x", "8cba9876066020f695"},
|
|
{"%2$d", "340282366920938463463374607431768211455"},
|
|
{"%2$u", "340282366920938463463374607431768211455"},
|
|
{"%2$x", "ffffffffffffffffffffffffffffffff"},
|
|
};
|
|
|
|
for (auto c : cases) {
|
|
UntypedFormatSpecImpl format(c.format);
|
|
EXPECT_EQ(c.expected, FormatPack(format, absl::MakeSpan(args)));
|
|
}
|
|
}
|
|
|
|
TEST_F(FormatConvertTest, Float) {
|
|
#ifdef _MSC_VER
|
|
// MSVC has a different rounding policy than us so we can't test our
|
|
// implementation against the native one there.
|
|
return;
|
|
#endif // _MSC_VER
|
|
|
|
const char *const kFormats[] = {
|
|
"%", "%.3", "%8.5", "%9", "%.60", "%.30", "%03", "%+",
|
|
"% ", "%-10", "%#15.3", "%#.0", "%.0", "%1$*2$", "%1$.*2$"};
|
|
|
|
std::vector<double> doubles = {0.0,
|
|
-0.0,
|
|
.99999999999999,
|
|
99999999999999.,
|
|
std::numeric_limits<double>::max(),
|
|
-std::numeric_limits<double>::max(),
|
|
std::numeric_limits<double>::min(),
|
|
-std::numeric_limits<double>::min(),
|
|
std::numeric_limits<double>::lowest(),
|
|
-std::numeric_limits<double>::lowest(),
|
|
std::numeric_limits<double>::epsilon(),
|
|
std::numeric_limits<double>::epsilon() + 1,
|
|
std::numeric_limits<double>::infinity(),
|
|
-std::numeric_limits<double>::infinity()};
|
|
|
|
#ifndef __APPLE__
|
|
// Apple formats NaN differently (+nan) vs. (nan)
|
|
doubles.push_back(std::nan(""));
|
|
#endif
|
|
|
|
// Some regression tests.
|
|
doubles.push_back(0.99999999999999989);
|
|
|
|
if (std::numeric_limits<double>::has_denorm != std::denorm_absent) {
|
|
doubles.push_back(std::numeric_limits<double>::denorm_min());
|
|
doubles.push_back(-std::numeric_limits<double>::denorm_min());
|
|
}
|
|
|
|
for (double base :
|
|
{1., 12., 123., 1234., 12345., 123456., 1234567., 12345678., 123456789.,
|
|
1234567890., 12345678901., 123456789012., 1234567890123.}) {
|
|
for (int exp = -123; exp <= 123; ++exp) {
|
|
for (int sign : {1, -1}) {
|
|
doubles.push_back(sign * std::ldexp(base, exp));
|
|
}
|
|
}
|
|
}
|
|
|
|
for (const char *fmt : kFormats) {
|
|
for (char f : {'f', 'F', //
|
|
'g', 'G', //
|
|
'a', 'A', //
|
|
'e', 'E'}) {
|
|
std::string fmt_str = std::string(fmt) + f;
|
|
for (double d : doubles) {
|
|
int i = -10;
|
|
FormatArgImpl args[2] = {FormatArgImpl(d), FormatArgImpl(i)};
|
|
UntypedFormatSpecImpl format(fmt_str);
|
|
// We use ASSERT_EQ here because failures are usually correlated and a
|
|
// bug would print way too many failed expectations causing the test to
|
|
// time out.
|
|
ASSERT_EQ(StrPrint(fmt_str.c_str(), d, i),
|
|
FormatPack(format, absl::MakeSpan(args)))
|
|
<< fmt_str << " " << StrPrint("%.18g", d) << " "
|
|
<< StrPrint("%.999f", d);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_F(FormatConvertTest, LongDouble) {
|
|
const char *const kFormats[] = {"%", "%.3", "%8.5", "%9",
|
|
"%.60", "%+", "% ", "%-10"};
|
|
|
|
// This value is not representable in double, but it is in long double that
|
|
// uses the extended format.
|
|
// This is to verify that we are not truncating the value mistakenly through a
|
|
// double.
|
|
long double very_precise = 10000000000000000.25L;
|
|
|
|
std::vector<long double> doubles = {
|
|
0.0,
|
|
-0.0,
|
|
very_precise,
|
|
1 / very_precise,
|
|
std::numeric_limits<long double>::max(),
|
|
-std::numeric_limits<long double>::max(),
|
|
std::numeric_limits<long double>::min(),
|
|
-std::numeric_limits<long double>::min(),
|
|
std::numeric_limits<long double>::infinity(),
|
|
-std::numeric_limits<long double>::infinity()};
|
|
|
|
for (const char *fmt : kFormats) {
|
|
for (char f : {'f', 'F', //
|
|
'g', 'G', //
|
|
'a', 'A', //
|
|
'e', 'E'}) {
|
|
std::string fmt_str = std::string(fmt) + 'L' + f;
|
|
for (auto d : doubles) {
|
|
FormatArgImpl arg(d);
|
|
UntypedFormatSpecImpl format(fmt_str);
|
|
// We use ASSERT_EQ here because failures are usually correlated and a
|
|
// bug would print way too many failed expectations causing the test to
|
|
// time out.
|
|
ASSERT_EQ(StrPrint(fmt_str.c_str(), d),
|
|
FormatPack(format, {&arg, 1}))
|
|
<< fmt_str << " " << StrPrint("%.18Lg", d) << " "
|
|
<< StrPrint("%.999Lf", d);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_F(FormatConvertTest, IntAsFloat) {
|
|
const int kMin = std::numeric_limits<int>::min();
|
|
const int kMax = std::numeric_limits<int>::max();
|
|
const int ia[] = {
|
|
1, 2, 3, 123,
|
|
-1, -2, -3, -123,
|
|
0, kMax - 1, kMax, kMin + 1, kMin };
|
|
for (const int fx : ia) {
|
|
SCOPED_TRACE(fx);
|
|
const FormatArgImpl args[] = {FormatArgImpl(fx)};
|
|
struct Expectation {
|
|
int line;
|
|
std::string out;
|
|
const char *fmt;
|
|
};
|
|
const double dx = static_cast<double>(fx);
|
|
const Expectation kExpect[] = {
|
|
{ __LINE__, StrPrint("%f", dx), "%f" },
|
|
{ __LINE__, StrPrint("%12f", dx), "%12f" },
|
|
{ __LINE__, StrPrint("%.12f", dx), "%.12f" },
|
|
{ __LINE__, StrPrint("%12a", dx), "%12a" },
|
|
{ __LINE__, StrPrint("%.12a", dx), "%.12a" },
|
|
};
|
|
for (const Expectation &e : kExpect) {
|
|
SCOPED_TRACE(e.line);
|
|
SCOPED_TRACE(e.fmt);
|
|
UntypedFormatSpecImpl format(e.fmt);
|
|
EXPECT_EQ(e.out, FormatPack(format, absl::MakeSpan(args)));
|
|
}
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
bool FormatFails(const char* test_format, T value) {
|
|
std::string format_string = std::string("<<") + test_format + ">>";
|
|
UntypedFormatSpecImpl format(format_string);
|
|
|
|
int one = 1;
|
|
const FormatArgImpl args[] = {FormatArgImpl(value), FormatArgImpl(one)};
|
|
EXPECT_EQ(FormatPack(format, absl::MakeSpan(args)), "")
|
|
<< "format=" << test_format << " value=" << value;
|
|
return FormatPack(format, absl::MakeSpan(args)).empty();
|
|
}
|
|
|
|
TEST_F(FormatConvertTest, ExpectedFailures) {
|
|
// Int input
|
|
EXPECT_TRUE(FormatFails("%p", 1));
|
|
EXPECT_TRUE(FormatFails("%s", 1));
|
|
EXPECT_TRUE(FormatFails("%n", 1));
|
|
|
|
// Double input
|
|
EXPECT_TRUE(FormatFails("%p", 1.));
|
|
EXPECT_TRUE(FormatFails("%s", 1.));
|
|
EXPECT_TRUE(FormatFails("%n", 1.));
|
|
EXPECT_TRUE(FormatFails("%c", 1.));
|
|
EXPECT_TRUE(FormatFails("%d", 1.));
|
|
EXPECT_TRUE(FormatFails("%x", 1.));
|
|
EXPECT_TRUE(FormatFails("%*d", 1.));
|
|
|
|
// String input
|
|
EXPECT_TRUE(FormatFails("%n", ""));
|
|
EXPECT_TRUE(FormatFails("%c", ""));
|
|
EXPECT_TRUE(FormatFails("%d", ""));
|
|
EXPECT_TRUE(FormatFails("%x", ""));
|
|
EXPECT_TRUE(FormatFails("%f", ""));
|
|
EXPECT_TRUE(FormatFails("%*d", ""));
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace str_format_internal
|
|
} // namespace absl
|