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skia / external / github.com / google / wuffs / f3146c2ea9c816a536b9496cd71f073c6edd8dd8 / . / test / c / std / json.c
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// Copyright 2020 The Wuffs Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ----------------
/*
This test program is typically run indirectly, by the "wuffs test" or "wuffs
bench" commands. These commands take an optional "-mimic" flag to check that
Wuffs' output mimics (i.e. exactly matches) other libraries' output, such as
giflib for GIF, libpng for PNG, etc.
To manually run this test:
for CC in clang gcc; do
$CC -std=c99 -Wall -Werror json.c && ./a.out
rm -f a.out
done
Each edition should print "PASS", amongst other information, and exit(0).
Add the "wuffs mimic cflags" (everything after the colon below) to the C
compiler flags (after the .c file) to run the mimic tests.
To manually run the benchmarks, replace "-Wall -Werror" with "-O3" and replace
the first "./a.out" with "./a.out -bench". Combine these changes with the
"wuffs mimic cflags" to run the mimic benchmarks.
*/
// !! wuffs mimic cflags: -DWUFFS_MIMIC
// Wuffs ships as a "single file C library" or "header file library" as per
// https://github.com/nothings/stb/blob/master/docs/stb_howto.txt
//
// To use that single file as a "foo.c"-like implementation, instead of a
// "foo.h"-like header, #define WUFFS_IMPLEMENTATION before #include'ing or
// compiling it.
#define WUFFS_IMPLEMENTATION
// Defining the WUFFS_CONFIG__MODULE* macros are optional, but it lets users of
// release/c/etc.c whitelist which parts of Wuffs to build. That file contains
// the entire Wuffs standard library, implementing a variety of codecs and file
// formats. Without this macro definition, an optimizing compiler or linker may
// very well discard Wuffs code for unused codecs, but listing the Wuffs
// modules we use makes that process explicit. Preprocessing means that such
// code simply isn't compiled.
#define WUFFS_CONFIG__MODULES
#define WUFFS_CONFIG__MODULE__BASE
#define WUFFS_CONFIG__MODULE__JSON
// If building this program in an environment that doesn't easily accommodate
// relative includes, you can use the script/inline-c-relative-includes.go
// program to generate a stand-alone C file.
#include "../../../release/c/wuffs-unsupported-snapshot.c"
#include "../testlib/testlib.c"
#ifdef WUFFS_MIMIC
// No mimic library.
#endif
// ---------------- String Conversions Tests
// wuffs_base__private_implementation__high_prec_dec__to_debug_string converts
// hpd into a human-readable NUL-terminated C string.
const char* //
wuffs_base__private_implementation__high_prec_dec__to_debug_string(
wuffs_base__private_implementation__high_prec_dec* hpd,
wuffs_base__slice_u8 dst) {
if (!hpd) {
return "high_prec_dec__to_debug_string: invalid hpd";
}
uint8_t* p = dst.ptr;
uint8_t* q = dst.ptr + dst.len;
// Sign bit.
if ((q - p) < 1) {
goto too_short;
}
*p++ = hpd->negative ? '-' : '+';
// Digits and decimal point.
if (hpd->decimal_point >
+WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) {
// We have "infinity".
if ((q - p) < 3) {
goto too_short;
}
*p++ = 'i';
*p++ = 'n';
*p++ = 'f';
goto nul_terminator;
} else if (hpd->decimal_point <
-WUFFS_BASE__PRIVATE_IMPLEMENTATION__HPD__DECIMAL_POINT__RANGE) {
// We have "epsilon": a very small number, equivalent to zero.
if ((q - p) < 3) {
goto too_short;
}
*p++ = 'e';
*p++ = 'p';
*p++ = 's';
goto nul_terminator;
} else if (hpd->num_digits == 0) {
// We have "0".
if ((q - p) < 1) {
goto too_short;
}
*p++ = '0';
goto nul_terminator;
} else if (hpd->decimal_point < 0) {
// Referring to the wuffs_base__private_implementation__high_prec_dec
// typedef's comment, we have something like ".00789".
if ((q - p) < (hpd->num_digits + ((uint32_t)(-hpd->decimal_point)) + 1)) {
goto too_short;
}
uint8_t* src = &hpd->digits[0];
// Step A.1: write the ".".
*p++ = '.';
// Step A.2: write the "00".
uint32_t n = ((uint32_t)(-hpd->decimal_point));
if (n > 0) {
memset(p, '0', n);
p += n;
}
// Step A.3: write the "789".
n = hpd->num_digits;
while (n--) {
*p++ = '0' | *src++;
}
} else if (((uint32_t)(hpd->decimal_point)) <= hpd->num_digits) {
// Referring to the wuffs_base__private_implementation__high_prec_dec
// typedef's comment, we have something like "78.9".
if ((q - p) < (hpd->num_digits + 1)) {
goto too_short;
}
uint8_t* src = &hpd->digits[0];
// Step B.1: write the "78".
uint32_t n = ((uint32_t)(hpd->decimal_point));
while (n--) {
*p++ = '0' | *src++;
}
// Step B.2: write the ".".
*p++ = '.';
// Step B.3: write the "9".
n = hpd->num_digits - ((uint32_t)(hpd->decimal_point));
while (n--) {
*p++ = '0' | *src++;
}
} else {
// Referring to the wuffs_base__private_implementation__high_prec_dec
// typedef's comment, we have something like "78900.".
if ((q - p) < (((uint32_t)(hpd->decimal_point)) + 1)) {
goto too_short;
}
uint8_t* src = &hpd->digits[0];
// Step C.1: write the "789".
uint32_t n = hpd->num_digits;
while (n--) {
*p++ = '0' | *src++;
}
// Step C.2: write the "00".
n = ((uint32_t)(hpd->decimal_point)) - hpd->num_digits;
if (n > 0) {
memset(p, '0', n);
p += n;
}
// Step C.3: write the ".".
*p++ = '.';
}
// Truncated bit.
if (hpd->truncated) {
if ((q - p) < 1) {
goto too_short;
}
*p++ = '$';
}
nul_terminator:
if ((q - p) < 1) {
goto too_short;
}
*p++ = '\x00';
return NULL;
too_short:
return "high_prec_dec__to_debug_string: dst buffer is too short";
}
const char* //
test_strconv_hpd_rounded_integer() {
CHECK_FOCUS(__func__);
struct {
uint64_t want;
const char* str;
} test_cases[] = {
{.want = 4, .str = "-3.9"},
{.want = 3, .str = "-3.14159"},
{.want = 0, .str = "+0"},
{.want = 0, .str = "0.0000000009"},
{.want = 0, .str = "0.1"},
{.want = 1, .str = "0.9"},
{.want = 12, .str = "1234e-2"},
{.want = 57, .str = "5678e-2"},
{.want = 60, .str = "60.0"},
{.want = 60, .str = "60.4999"},
{.want = 60, .str = "60.5"},
{.want = 60, .str = "60.5000"},
{.want = 61, .str = "60.5001"},
{.want = 61, .str = "60.6"},
{.want = 61, .str = "61.0"},
{.want = 61, .str = "61.4999"},
{.want = 62, .str = "61.5"},
{.want = 62, .str = "61.5000"},
{.want = 62, .str = "61.5001"},
{.want = 62, .str = "61.6"},
{.want = 62, .str = "62.0"},
{.want = 62, .str = "62.4999"},
{.want = 62, .str = "62.5"},
{.want = 62, .str = "62.5000"},
{.want = 63, .str = "62.5001"},
{.want = 63, .str = "62.6"},
{.want = 1000, .str = "999.999"},
{.want = 4560000, .str = "456e+4"},
// With round-to-even, ½ rounds to 0 but "a tiny bit more than ½" rounds
// to 1, even if the HPD struct truncates that "1" digit.
{.want = 0, .str = "0.5"},
{.want = 1, // 50 '0's per row.
.str = "0.500000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000000"
"00000000000000000000000000000000000000000000000001"},
// Inputs with exactly 18 decimal digits before the decimal point.
{.want = 123456789012345679, .str = "123456789012345678.9"},
{.want = 1000000000000000000, .str = "999999999999999999.9"},
// Inputs with exactly 19 decimal digits before the decimal point.
{.want = UINT64_MAX, .str = "1234567890123456789"},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
wuffs_base__private_implementation__high_prec_dec hpd;
CHECK_STATUS(
"hpd__parse",
wuffs_base__private_implementation__high_prec_dec__parse(
&hpd, wuffs_base__make_slice_u8((void*)test_cases[tc].str,
strlen(test_cases[tc].str))));
uint64_t have =
wuffs_base__private_implementation__high_prec_dec__rounded_integer(
&hpd);
if (have != test_cases[tc].want) {
RETURN_FAIL("\"%s\": have %" PRIu64 ", want %" PRIu64, test_cases[tc].str,
have, test_cases[tc].want);
}
}
return NULL;
}
const char* //
test_strconv_hpd_shift() {
CHECK_FOCUS(__func__);
struct {
const char* str;
int32_t shift; // -ve means left shift, +ve means right shift.
const char* want;
} test_cases[] = {
{.str = "0", .shift = +2, .want = "+0"},
{.str = "1", .shift = +3, .want = "+.125"},
{.str = "12e3", .shift = +5, .want = "+375."},
{.str = "-0.007", .shift = +8, .want = "-.00002734375"},
{.str = "3.14159E+26",
.shift = +60,
.want = "+272489496.244698869986677891574800014495849609375"},
{.str = "0", .shift = -2, .want = "+0"},
{.str = ".125", .shift = -3, .want = "+1."},
{.str = "3750e-1", .shift = -5, .want = "+12000."},
{.str = "-2.734375e-5", .shift = -8, .want = "-.007"},
{.str = "+272489496.244698869986677891574800014495849609375",
.shift = -60,
.want = "+314159000000000000000000000."},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
wuffs_base__private_implementation__high_prec_dec hpd;
CHECK_STATUS(
"hpd__parse",
wuffs_base__private_implementation__high_prec_dec__parse(
&hpd, wuffs_base__make_slice_u8((void*)test_cases[tc].str,
strlen(test_cases[tc].str))));
int32_t shift = test_cases[tc].shift;
if (shift > 0) {
wuffs_base__private_implementation__high_prec_dec__small_rshift(
&hpd, (uint32_t)(+shift));
} else if (shift < 0) {
wuffs_base__private_implementation__high_prec_dec__small_lshift(
&hpd, (uint32_t)(-shift));
}
uint8_t have[1024];
CHECK_STRING(
wuffs_base__private_implementation__high_prec_dec__to_debug_string(
&hpd,
wuffs_base__make_slice_u8(have, WUFFS_TESTLIB_ARRAY_SIZE(have))));
if (strcmp(((void*)(have)), test_cases[tc].want)) {
RETURN_FAIL("\"%s\" %s %" PRId32 ":\n have: \"%s\"\n want: \"%s\"",
test_cases[tc].str, ((shift > 0) ? ">>" : "<<"),
((shift > 0) ? +shift : -shift), have, test_cases[tc].want);
}
}
return NULL;
}
const char* //
test_strconv_hexadecimal() {
CHECK_FOCUS(__func__);
{
const char* str = "6A6b7"; // The "7" should be ignored.
wuffs_base__slice_u8 dst = global_have_slice;
wuffs_base__slice_u8 src =
wuffs_base__make_slice_u8((void*)str, strlen(str));
size_t have = wuffs_base__hexadecimal__decode2(dst, src);
if (have != 2) {
RETURN_FAIL("decode2: have %zu, want 2", have);
}
if (global_have_array[0] != 0x6A) {
RETURN_FAIL("decode2: dst[0]: have 0x%02X, want 0x6A",
(int)(global_have_array[0]));
}
if (global_have_array[1] != 0x6B) {
RETURN_FAIL("decode2: dst[1]: have 0x%02X, want 0x6B",
(int)(global_have_array[1]));
}
}
{
const char* str = "\\xa9\\x00\\xFe";
wuffs_base__slice_u8 dst = global_have_slice;
wuffs_base__slice_u8 src =
wuffs_base__make_slice_u8((void*)str, strlen(str));
size_t have = wuffs_base__hexadecimal__decode4(dst, src);
if (have != 3) {
RETURN_FAIL("decode4: have %zu, want 3", have);
}
if (global_have_array[0] != 0xA9) {
RETURN_FAIL("decode4: dst[0]: have 0x%02X, want 0xA9",
(int)(global_have_array[0]));
}
if (global_have_array[1] != 0x00) {
RETURN_FAIL("decode4: dst[1]: have 0x%02X, want 0x00",
(int)(global_have_array[1]));
}
if (global_have_array[2] != 0xFE) {
RETURN_FAIL("decode4: dst[2]: have 0x%02X, want 0xFE",
(int)(global_have_array[2]));
}
}
return NULL;
}
const char* //
test_strconv_parse_number_f64() {
CHECK_FOCUS(__func__);
const uint64_t fail = 0xDEADBEEF;
struct {
uint64_t want;
const char* str;
} test_cases[] = {
{.want = 0x0000000000000000, .str = "+0.0"},
{.want = 0x0000000000000000, .str = "0"},
{.want = 0x0000000000000000, .str = "0e0"},
{.want = 0x0000000000000001, .str = "4.9406564584124654e-324"},
{.want = 0x000FFFFFFFFFFFFF, .str = "2.2250738585072009E-308"},
{.want = 0x0010000000000000, .str = "2.2250738585072014E-308"},
{.want = 0x369C314ABE948EB1,
.str = "0.0000000000000000000000000000000000000000000012345678900000"},
{.want = 0x3F88000000000000, .str = "0.01171875"},
{.want = 0x3FD0000000000000, .str = ".25"},
{.want = 0x3FD3333333333333,
.str = "0.2999999999999999888977697537484345957636833190917968750000"},
{.want = 0x3FD3333333333333, .str = "0.3"},
{.want = 0x3FD3333333333334, .str = "0.30000000000000004"},
{.want = 0x3FD3333333333334,
.str = "0.3000000000000000444089209850062616169452667236328125000000"},
{.want = 0x3FD5555555555555, .str = "0.333333333333333333333333333333"},
{.want = 0x3FEFFFFFFFFFFFFF, .str = "0.99999999999999988898"},
{.want = 0x3FF0000000000000, .str = "0.999999999999999999999999999999"},
{.want = 0x3FF0000000000000, .str = "1"},
{.want = 0x3FF0000000000001, .str = "1.0000000000000002"},
{.want = 0x3FF0000000000002, .str = "1.0000000000000004"},
{.want = 0x3FF4000000000000, .str = "1.25"},
{.want = 0x3FF8000000000000, .str = "+1.5"},
{.want = 0x4000000000000000, .str = "2"},
{.want = 0x400921FB54442D18, .str = "3.141592653589793238462643383279"},
{.want = 0x400C000000000000, .str = "3.5"},
{.want = 0x4014000000000000, .str = "5"},
{.want = 0x4036000000000000, .str = "22"},
{.want = 0x4036000000000000, .str = "_+__2_2__."},
{.want = 0x4037000000000000, .str = "23"},
{.want = 0x4038000000000000, .str = "2.4E+00000000001"},
{.want = 0x4038000000000000, .str = "2.4E001"},
{.want = 0x4038000000000000, .str = "2.4E1"},
{.want = 0x4038000000000000, .str = "24"},
{.want = 0x4038000000000000, .str = "2400_00000_00000.00000_e-_1_2"},
{.want = 0x40FE240C9FCB0C02, .str = "123456.789012"},
{.want = 0x4330000000000000, .str = "4503599627370496"}, // 1 << 52.
{.want = 0x4330000000000000, .str = "4503599627370496.5"},
{.want = 0x4330000000000001, .str = "4503599627370497"},
{.want = 0x4330000000000002, .str = "4503599627370497.5"},
{.want = 0x4330000000000002, .str = "4503599627370498"},
{.want = 0x4340000000000000, .str = "9007199254740992"}, // 1 << 53.
{.want = 0x4340000000000000, .str = "9007199254740993"},
{.want = 0x4340000000000001, .str = "9007199254740994"},
{.want = 0x4340000000000002, .str = "9007199254740995"},
{.want = 0x4340000000000002, .str = "9007199254740996"},
{.want = 0x4340000000000002, .str = "9_007__199_254__740_996"},
{.want = 0x54B249AD2594C37D, .str = "+1E+100"},
{.want = 0x54B249AD2594C37D, .str = "+_1_E_+_1_0_0_"},
{.want = 0x7FEFFFFFFFFFFFFF, .str = "1.7976931348623157e308"},
{.want = 0x7FF0000000000000, .str = "1.8e308"},
{.want = 0x7FF0000000000000, .str = "1e999"},
{.want = 0x7FF0000000000000, .str = "__InFinity__"},
{.want = 0x7FF0000000000000, .str = "inf"},
{.want = 0x7FFFFFFFFFFFFFFF, .str = "+nan"},
{.want = 0x7FFFFFFFFFFFFFFF, .str = "_+_NaN_"},
{.want = 0x7FFFFFFFFFFFFFFF, .str = "nan"},
{.want = 0x8000000000000000, .str = "-0.000e0"},
{.want = 0xC008000000000000, .str = "-3"},
{.want = 0xFFF0000000000000, .str = "-2e308"},
{.want = 0xFFF0000000000000, .str = "-inf"},
{.want = 0xFFFFFFFFFFFFFFFF, .str = "-NAN"},
// We accept either ',' or '.'.
{.want = 0x3FFC000000000000, .str = "1,75"},
{.want = 0x3FFC000000000000, .str = "1.75"},
{.want = fail, .str = " 0"},
{.want = fail, .str = ""},
{.want = fail, .str = "."},
{.want = fail, .str = "00"},
{.want = fail, .str = "001.2"},
{.want = fail, .str = "06.44"},
{.want = fail, .str = "0644"},
{.want = fail, .str = "1234 67.8e9"},
{.want = fail, .str = "2,345,678"}, // Two ','s.
{.want = fail, .str = "2.345,678"}, // One '.' and one ','.
{.want = fail, .str = "7 "},
{.want = fail, .str = "7 .9"},
{.want = fail, .str = "7e"},
{.want = fail, .str = "7e-"},
{.want = fail, .str = "7e-+1"},
{.want = fail, .str = "7e++1"},
{.want = fail, .str = "NAN "},
{.want = fail, .str = "NANA"},
{.want = fail, .str = "inf_inity"},
{.want = fail, .str = "nun"},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
wuffs_base__result_f64 r =
wuffs_base__parse_number_f64(wuffs_base__make_slice_u8(
(void*)test_cases[tc].str, strlen(test_cases[tc].str)));
uint64_t have =
(r.status.repr == NULL)
? wuffs_base__ieee_754_bit_representation__from_f64(r.value)
: fail;
if (have != test_cases[tc].want) {
RETURN_FAIL("\"%s\": have 0x%" PRIX64 ", want 0x%" PRIX64,
test_cases[tc].str, have, test_cases[tc].want);
}
}
return NULL;
}
const char* //
test_strconv_parse_number_i64() {
CHECK_FOCUS(__func__);
const int64_t fail = 0xDEADBEEF;
struct {
int64_t want;
const char* str;
} test_cases[] = {
{.want = +0x0000000000000000, .str = "+0"},
{.want = +0x0000000000000000, .str = "-0"},
{.want = +0x0000000000000000, .str = "0"},
{.want = +0x000000000000012C, .str = "+300"},
{.want = +0x7FFFFFFFFFFFFFFF, .str = "+9223372036854775807"},
{.want = +0x7FFFFFFFFFFFFFFF, .str = "9223372036854775807"},
{.want = -0x0000000000000002, .str = "-2"},
{.want = -0x00000000000000AB, .str = "_-_0x_AB"},
{.want = -0x7FFFFFFFFFFFFFFF, .str = "-9223372036854775807"},
{.want = -0x8000000000000000, .str = "-9223372036854775808"},
{.want = fail, .str = "+ 1"},
{.want = fail, .str = "++1"},
{.want = fail, .str = "+-1"},
{.want = fail, .str = "+9223372036854775808"}, // 1 << 63.
{.want = fail, .str = "-"},
{.want = fail, .str = "-+1"},
{.want = fail, .str = "-0x8000000000000001"}, // -((1 << 63) + 1).
{.want = fail, .str = "-9223372036854775809"}, // -((1 << 63) + 1).
{.want = fail, .str = "0x8000000000000000"}, // 1 << 63.
{.want = fail, .str = "1-"},
{.want = fail, .str = "9223372036854775808"}, // 1 << 63.
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
wuffs_base__result_i64 r =
wuffs_base__parse_number_i64(wuffs_base__make_slice_u8(
(void*)test_cases[tc].str, strlen(test_cases[tc].str)));
int64_t have = (r.status.repr == NULL) ? r.value : fail;
if (have != test_cases[tc].want) {
RETURN_FAIL("\"%s\": have 0x%" PRIX64 ", want 0x%" PRIX64,
test_cases[tc].str, have, test_cases[tc].want);
}
}
return NULL;
}
const char* //
test_strconv_parse_number_u64() {
CHECK_FOCUS(__func__);
const uint64_t fail = 0xDEADBEEF;
struct {
uint64_t want;
const char* str;
} test_cases[] = {
{.want = 0x0000000000000000, .str = "0"},
{.want = 0x0000000000000000, .str = "0_"},
{.want = 0x0000000000000000, .str = "0d0"},
{.want = 0x0000000000000000, .str = "0x000"},
{.want = 0x0000000000000000, .str = "_0"},
{.want = 0x0000000000000000, .str = "__0__"},
{.want = 0x000000000000004A, .str = "0x4A"},
{.want = 0x000000000000004B, .str = "0x__4_B_"},
{.want = 0x000000000000007B, .str = "123"},
{.want = 0x000000000000007C, .str = "12_4"},
{.want = 0x000000000000007D, .str = "_1__2________5_"},
{.want = 0x00000000000001F4, .str = "0d500"},
{.want = 0x00000000000001F5, .str = "0D___5_01__"},
{.want = 0x00000000FFFFFFFF, .str = "4294967295"},
{.want = 0x0000000100000000, .str = "4294967296"},
{.want = 0x0123456789ABCDEF, .str = "0x0123456789ABCDEF"},
{.want = 0x0123456789ABCDEF, .str = "0x0123456789abcdef"},
{.want = 0xFFFFFFFFFFFFFFF9, .str = "18446744073709551609"},
{.want = 0xFFFFFFFFFFFFFFFA, .str = "18446744073709551610"},
{.want = 0xFFFFFFFFFFFFFFFE, .str = "0xFFFFffffFFFFfffe"},
{.want = 0xFFFFFFFFFFFFFFFE, .str = "18446744073709551614"},
{.want = 0xFFFFFFFFFFFFFFFF, .str = "0xFFFF_FFFF_FFFF_FFFF"},
{.want = 0xFFFFFFFFFFFFFFFF, .str = "18446744073709551615"},
{.want = fail, .str = " "},
{.want = fail, .str = " 0"},
{.want = fail, .str = " 12 "},
{.want = fail, .str = ""},
{.want = fail, .str = "+0"},
{.want = fail, .str = "+1"},
{.want = fail, .str = "-0"},
{.want = fail, .str = "-1"},
{.want = fail, .str = "0 "},
{.want = fail, .str = "00"},
{.want = fail, .str = "000000x"},
{.want = fail, .str = "000000x0"},
{.want = fail, .str = "007"},
{.want = fail, .str = "0644"},
{.want = fail, .str = "0_0"},
{.want = fail, .str = "0_x1"},
{.want = fail, .str = "0d___"},
{.want = fail, .str = "0x"},
{.want = fail, .str = "0x10000000000000000"}, // 1 << 64.
{.want = fail, .str = "0x1_0000_0000_0000_0000"}, // 1 << 64.
{.want = fail, .str = "1 23"},
{.want = fail, .str = "1,23"},
{.want = fail, .str = "1.23"},
{.want = fail, .str = "123 "},
{.want = fail, .str = "123456789012345678901234"},
{.want = fail, .str = "12a3"},
{.want = fail, .str = "18446744073709551616"}, // UINT64_MAX.
{.want = fail, .str = "18446744073709551617"},
{.want = fail, .str = "18446744073709551618"},
{.want = fail, .str = "18446744073709551619"},
{.want = fail, .str = "18446744073709551620"},
{.want = fail, .str = "18446744073709551621"},
{.want = fail, .str = "_"},
{.want = fail, .str = "d"},
{.want = fail, .str = "x"},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
wuffs_base__result_u64 r =
wuffs_base__parse_number_u64(wuffs_base__make_slice_u8(
(void*)test_cases[tc].str, strlen(test_cases[tc].str)));
uint64_t have = (r.status.repr == NULL) ? r.value : fail;
if (have != test_cases[tc].want) {
RETURN_FAIL("\"%s\": have 0x%" PRIX64 ", want 0x%" PRIX64,
test_cases[tc].str, have, test_cases[tc].want);
}
}
return NULL;
}
const char* //
test_strconv_utf_8_next() {
CHECK_FOCUS(__func__);
// Special case the "\x00" string, which is valid UTF-8 but its strlen is
// zero, not one.
uint8_t the_nul_byte[1];
the_nul_byte[0] = '\x00';
struct {
uint32_t want_cp;
uint32_t want_bl;
const char* str;
} test_cases[] = {
{.want_cp = 0x00000000, .want_bl = 0, .str = ""},
{.want_cp = 0x00000000, .want_bl = 1, .str = "The <NUL> byte"},
{.want_cp = 0x00000009, .want_bl = 1, .str = "\t"},
{.want_cp = 0x00000041, .want_bl = 1, .str = "A"},
{.want_cp = 0x00000061, .want_bl = 1, .str = "abdefghij"},
{.want_cp = 0x0000007F, .want_bl = 1, .str = "\x7F"},
{.want_cp = 0x00000080, .want_bl = 2, .str = "\xC2\x80"},
{.want_cp = 0x000007FF, .want_bl = 2, .str = "\xDF\xBF"},
{.want_cp = 0x00000800, .want_bl = 3, .str = "\xE0\xA0\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 3, .str = "\xEF\xBF\xBD"},
{.want_cp = 0x0000FFFF, .want_bl = 3, .str = "\xEF\xBF\xBF"},
{.want_cp = 0x00010000, .want_bl = 4, .str = "\xF0\x90\x80\x80"},
{.want_cp = 0x0010FFFF, .want_bl = 4, .str = "\xF4\x8F\xBF\xBF"},
// U+00000394 GREEK CAPITAL LETTER DELTA.
{.want_cp = 0x00000394, .want_bl = 2, .str = "\xCE\x94"},
{.want_cp = 0x00000394, .want_bl = 2, .str = "\xCE\x94+"},
{.want_cp = 0x00000394, .want_bl = 2, .str = "\xCE\x94++"},
{.want_cp = 0x00000394, .want_bl = 2, .str = "\xCE\x94+++"},
{.want_cp = 0x00000394, .want_bl = 2, .str = "\xCE\x94++++"},
{.want_cp = 0x00000394, .want_bl = 2, .str = "\xCE\x94\x80"},
{.want_cp = 0x00000394, .want_bl = 2, .str = "\xCE\x94\x80\x80"},
{.want_cp = 0x00000394, .want_bl = 2, .str = "\xCE\x94\x80\x80\x80"},
{.want_cp = 0x00000394, .want_bl = 2, .str = "\xCE\x94\x80\x80\x80\x80"},
// U+00002603 SNOWMAN.
{.want_cp = 0x00002603, .want_bl = 3, .str = "\xE2\x98\x83"},
{.want_cp = 0x00002603, .want_bl = 3, .str = "\xE2\x98\x83+"},
{.want_cp = 0x00002603, .want_bl = 3, .str = "\xE2\x98\x83++"},
{.want_cp = 0x00002603, .want_bl = 3, .str = "\xE2\x98\x83+++"},
{.want_cp = 0x00002603, .want_bl = 3, .str = "\xE2\x98\x83++++"},
{.want_cp = 0x00002603, .want_bl = 3, .str = "\xE2\x98\x83\xFF"},
// U+0001F4A9 PILE OF POO.
{.want_cp = 0x0001F4A9, .want_bl = 4, .str = "\xF0\x9F\x92\xA9"},
{.want_cp = 0x0001F4A9, .want_bl = 4, .str = "\xF0\x9F\x92\xA9+"},
{.want_cp = 0x0001F4A9, .want_bl = 4, .str = "\xF0\x9F\x92\xA9++"},
{.want_cp = 0x0001F4A9, .want_bl = 4, .str = "\xF0\x9F\x92\xA9+++"},
{.want_cp = 0x0001F4A9, .want_bl = 4, .str = "\xF0\x9F\x92\xA9++++"},
{.want_cp = 0x0001F4A9, .want_bl = 4, .str = "\xF0\x9F\x92\xA9\xFF"},
// Invalid.
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xBF"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xC0\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xC1\xBF"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xC2"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xC2\x7F"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xC2\xC0"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xC2\xFF"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xCE"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xDF\xC0"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xDF\xFF"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xE0\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xE0\x80\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xE0\x9F\xBF"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xE2"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xF0"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xF0\x80\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xF0\x80\x80\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xF0\x8F\xBF\xBF"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xF4\x90\x80\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xF5"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xF6\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xF7\x80\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xFF\xFF\xFF\xFF"},
// Invalid. UTF-8 cannot contain the surrogates U+D800 ..= U+DFFF.
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xED\xA0\x80"},
{.want_cp = 0x0000FFFD, .want_bl = 1, .str = "\xED\xBF\xBF"},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
wuffs_base__slice_u8 s = wuffs_base__make_slice_u8(
(void*)test_cases[tc].str, strlen(test_cases[tc].str));
// Override "The <NUL> byte" with "\x00".
if ((test_cases[tc].want_cp == 0) && (test_cases[tc].want_bl == 1)) {
s = wuffs_base__make_slice_u8(&the_nul_byte[0], 1);
}
wuffs_base__utf_8__next__output have = wuffs_base__utf_8__next(s);
if ((have.code_point != test_cases[tc].want_cp) ||
(have.byte_length != test_cases[tc].want_bl)) {
RETURN_FAIL("\"%s\": have cp=0x%" PRIX32 " bl=%" PRIu32
", want cp=0x%" PRIX32 " bl=%" PRIu32,
test_cases[tc].str, have.code_point, have.byte_length,
test_cases[tc].want_cp, test_cases[tc].want_bl);
}
}
return NULL;
}
// ---------------- Golden Tests
golden_test json_australian_abc_gt = {
.want_filename = "test/data/australian-abc-local-stations.tokens",
.src_filename = "test/data/australian-abc-local-stations.json",
};
golden_test json_file_sizes_gt = {
.src_filename = "test/data/file-sizes.json",
};
golden_test json_github_tags_gt = {
.src_filename = "test/data/github-tags.json",
};
golden_test json_json_things_unformatted_gt = {
.want_filename = "test/data/json-things.unformatted.tokens",
.src_filename = "test/data/json-things.unformatted.json",
};
golden_test json_nobel_prizes_gt = {
.src_filename = "test/data/nobel-prizes.json",
};
golden_test json_json_quirks_gt = {
.want_filename = "test/data/json-quirks.tokens",
.src_filename = "test/data/json-quirks.json",
};
// ---------------- JSON Tests
const char* //
test_wuffs_json_decode_interface() {
CHECK_FOCUS(__func__);
{
wuffs_json__decoder dec;
CHECK_STATUS("initialize",
wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED));
CHECK_STRING(do_test__wuffs_base__token_decoder(
wuffs_json__decoder__upcast_as__wuffs_base__token_decoder(&dec),
&json_json_things_unformatted_gt));
}
{
wuffs_json__decoder dec;
CHECK_STATUS("initialize",
wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED));
CHECK_STRING(do_test__wuffs_base__token_decoder(
wuffs_json__decoder__upcast_as__wuffs_base__token_decoder(&dec),
&json_australian_abc_gt));
}
{
uint32_t quirks[] = {
WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_A,
WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_CAPITAL_U,
WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_E,
WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_QUESTION_MARK,
WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_SINGLE_QUOTE,
WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_V,
WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_X,
WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_ZERO,
WUFFS_JSON__QUIRK_ALLOW_COMMENT_BLOCK,
WUFFS_JSON__QUIRK_ALLOW_COMMENT_LINE,
WUFFS_JSON__QUIRK_ALLOW_EXTRA_COMMA,
WUFFS_JSON__QUIRK_ALLOW_INF_NAN_NUMBERS,
WUFFS_JSON__QUIRK_ALLOW_LEADING_ASCII_RECORD_SEPARATOR,
WUFFS_JSON__QUIRK_ALLOW_LEADING_UNICODE_BYTE_ORDER_MARK,
WUFFS_JSON__QUIRK_ALLOW_TRAILING_NEW_LINE,
WUFFS_JSON__QUIRK_REPLACE_INVALID_UNICODE,
0,
};
wuffs_json__decoder dec;
CHECK_STATUS("initialize",
wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED));
uint32_t i;
for (i = 0; quirks[i]; i++) {
wuffs_json__decoder__set_quirk_enabled(&dec, quirks[i], true);
}
CHECK_STRING(do_test__wuffs_base__token_decoder(
wuffs_json__decoder__upcast_as__wuffs_base__token_decoder(&dec),
&json_json_quirks_gt));
}
return NULL;
}
const char* //
wuffs_json_decode(wuffs_base__token_buffer* tok,
wuffs_base__io_buffer* src,
uint32_t wuffs_initialize_flags,
uint64_t wlimit,
uint64_t rlimit) {
wuffs_json__decoder dec;
CHECK_STATUS("initialize",
wuffs_json__decoder__initialize(&dec, sizeof dec, WUFFS_VERSION,
wuffs_initialize_flags));
while (true) {
wuffs_base__token_buffer limited_tok =
make_limited_token_writer(*tok, wlimit);
wuffs_base__io_buffer limited_src = make_limited_reader(*src, rlimit);
wuffs_base__status status = wuffs_json__decoder__decode_tokens(
&dec, &limited_tok, &limited_src, global_work_slice);
tok->meta.wi += limited_tok.meta.wi;
src->meta.ri += limited_src.meta.ri;
if (((wlimit < UINT64_MAX) &&
(status.repr == wuffs_base__suspension__short_write)) ||
((rlimit < UINT64_MAX) &&
(status.repr == wuffs_base__suspension__short_read))) {
continue;
}
return status.repr;
}
}
const char* //
test_wuffs_json_decode_end_of_data() {
CHECK_FOCUS(__func__);
int i;
for (i = 0; i < 2; i++) {
uint8_t* src_ptr = (uint8_t*)("123null89");
size_t src_len = i ? 3 : 9;
wuffs_json__decoder dec;
CHECK_STATUS("initialize",
wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED));
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src = wuffs_base__make_io_buffer_reader(
wuffs_base__make_slice_u8(src_ptr, src_len), true);
CHECK_STATUS("decode_tokens", wuffs_json__decoder__decode_tokens(
&dec, &tok, &src, global_work_slice));
if (src.meta.ri != 3) {
RETURN_FAIL("src.meta.ri: have %zu, want 3", src.meta.ri);
}
const char* have =
wuffs_json__decoder__decode_tokens(&dec, &tok, &src, global_work_slice)
.repr;
if (have != wuffs_base__note__end_of_data) {
RETURN_FAIL("decode_tokens: have \"%s\", want \"%s\"", have,
wuffs_base__note__end_of_data);
}
if (src.meta.ri != 3) {
RETURN_FAIL("src.meta.ri: have %zu, want 3", src.meta.ri);
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_long_numbers() {
CHECK_FOCUS(__func__);
// Spelling "false" with four letters helps clang-format align the test
// cases, when viewed in a fixed width font.
const bool fals = false;
// Each test case produces multiple test strings: the test_cases[tc].suffix
// field is prefixed with N '9's, for multiple values of N, so that the test
// string's total length is near WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL.
// For example, a ".2e4" suffix means an overall string of "999etc999.2e4".
//
// The test_cases[tc].valid field holds the whether overall string is a valid
// JSON number.
struct {
bool valid;
const char* suffix;
} test_cases[] = {
{.valid = true, .suffix = ""},
{.valid = true, .suffix = " "},
{.valid = fals, .suffix = "."},
{.valid = fals, .suffix = ". "},
{.valid = fals, .suffix = "E"},
{.valid = fals, .suffix = "E "},
{.valid = fals, .suffix = "E-"},
{.valid = fals, .suffix = "E- "},
{.valid = true, .suffix = "e2"},
{.valid = true, .suffix = "e2 "},
{.valid = true, .suffix = "e+34"},
{.valid = true, .suffix = "e+34 "},
{.valid = true, .suffix = ".2"},
{.valid = true, .suffix = ".2 "},
{.valid = fals, .suffix = ".2e"},
{.valid = fals, .suffix = ".2e "},
{.valid = fals, .suffix = ".2e+"},
{.valid = fals, .suffix = ".2e+ "},
{.valid = true, .suffix = ".2e4"},
{.valid = true, .suffix = ".2e4 "},
{.valid = true, .suffix = ".2E+5"},
{.valid = true, .suffix = ".2E+5 "},
{.valid = true, .suffix = ".2e-5678"},
{.valid = true, .suffix = ".2e-5678 "},
};
// src_array holds the overall test string. 119 is arbitrary but long enough.
// See the "if (suffix_length > etc)" check below. 102 is also arbitrary but
// larger than WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL.
//
// See also test_wuffs_json_decode_src_io_buffer_length.
uint8_t src_array[119];
memset(&src_array[0], '9', 102);
if (102 <= WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL) {
RETURN_FAIL("insufficient number_length test case coverage");
}
wuffs_json__decoder dec;
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
size_t suffix_length = strlen(test_cases[tc].suffix);
if ((suffix_length + 1) > (119 - 102)) { // +1 for the terminal NUL.
RETURN_FAIL("tc=%d: src_array is too short", tc);
}
bool ends_with_space = (suffix_length > 0) &&
(test_cases[tc].suffix[suffix_length - 1] == ' ');
// Copying the terminal NUL isn't necessary for Wuffs' slices (which are a
// pointer-length pair), but this backstop can help debugging with printf
// where "%s" takes a C string (a bare pointer).
memcpy(&src_array[102], test_cases[tc].suffix, suffix_length + 1);
size_t nines_length;
for (nines_length = 90; nines_length < 102; nines_length++) {
wuffs_base__slice_u8 src_data = ((wuffs_base__slice_u8){
.ptr = &src_array[102 - nines_length],
.len = nines_length + suffix_length,
});
size_t number_length = src_data.len - (ends_with_space ? 1 : 0);
int closed;
for (closed = 0; closed < 2; closed++) {
CHECK_STATUS(
"initialize",
wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED));
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src =
wuffs_base__make_io_buffer_reader(src_data, closed != 0);
const char* have = wuffs_json__decoder__decode_tokens(&dec, &tok, &src,
global_work_slice)
.repr;
size_t total_length = 0;
while (tok.meta.ri < tok.meta.wi) {
wuffs_base__token* t = &tok.data.ptr[tok.meta.ri++];
total_length += wuffs_base__token__length(t);
}
if (total_length != src.meta.ri) {
RETURN_FAIL(
"tc=%d, nines_length=%zu, closed=%d: total_length: have %zu, "
"want %zu",
tc, nines_length, closed, total_length, src.meta.ri);
}
const char* want;
if (number_length > WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL) {
want = wuffs_json__error__unsupported_number_length;
} else if (closed || ends_with_space) {
want = test_cases[tc].valid ? NULL : wuffs_json__error__bad_input;
} else {
want = wuffs_base__suspension__short_read;
}
if (have != want) {
RETURN_FAIL(
"tc=%d, nines_length=%zu, closed=%d: have \"%s\", want \"%s\"",
tc, nines_length, closed, have, want);
}
}
}
}
return NULL;
}
// test_wuffs_json_decode_prior_valid_utf_8 tests that when encountering
// invalid or incomplete UTF-8, or a backslash-escape, any prior valid UTF-8 is
// still output. The decoder batches output so that, ignoring the quotation
// marks, "abc\xCE\x94efg" can be a single 8-length token instead of multiple
// (e.g. 3+2+3) tokens. On the other hand, while "abc\xFF" ends with one byte
// of invalid UTF-8, the 3 good bytes before that should still be output.
const char* //
test_wuffs_json_decode_prior_valid_utf_8() {
CHECK_FOCUS(__func__);
// The test cases contain combinations of valid, partial and invalid UTF-8:
// - "\xCE\x94" is U+00000394 GREEK CAPITAL LETTER DELTA.
// - "\xE2\x98\x83" is U+00002603 SNOWMAN.
// - "\xF0\x9F\x92\xA9" is U+0001F4A9 PILE OF POO.
//
// The code below can also add trailing 's' bytes, which change e.g. the
// partial multi-byte UTF-8 "\xE2" to be the invalid UTF-8 "\xE2s".
const char* test_cases[] = {
"",
"\\t",
"\\u",
"\\u1234",
"\x1F", // Valid UTF-8 but invalid in a JSON string.
"\x20",
"\xCE",
"\xCE\x94",
"\xE2",
"\xE2\x98",
"\xE2\x98\x83",
"\xE2\x98\x83\xCE",
"\xE2\x98\x83\xCE\x94",
"\xF0",
"\xF0\x9F",
"\xF0\x9F\x92",
"\xF0\x9F\x92\xA9",
"\xF0\x9F\x92\xA9\xCE",
"\xF0\x9F\x92\xA9\xCE\x94",
};
size_t prefixes[] = {
0,
1,
15,
WUFFS_BASE__TOKEN__LENGTH__MAX_INCL - 9,
WUFFS_BASE__TOKEN__LENGTH__MAX_INCL - 8,
WUFFS_BASE__TOKEN__LENGTH__MAX_INCL - 7,
WUFFS_BASE__TOKEN__LENGTH__MAX_INCL - 6,
WUFFS_BASE__TOKEN__LENGTH__MAX_INCL - 5,
WUFFS_BASE__TOKEN__LENGTH__MAX_INCL - 4,
WUFFS_BASE__TOKEN__LENGTH__MAX_INCL - 3,
WUFFS_BASE__TOKEN__LENGTH__MAX_INCL - 2,
WUFFS_BASE__TOKEN__LENGTH__MAX_INCL - 1,
WUFFS_BASE__TOKEN__LENGTH__MAX_INCL + 0,
};
size_t suffixes[] = {0, 1, 17};
wuffs_json__decoder dec;
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
size_t n = strlen(test_cases[tc]);
size_t num_preceding = 0;
while (num_preceding < n) {
wuffs_base__utf_8__next__output x =
wuffs_base__utf_8__next(wuffs_base__make_slice_u8(
(void*)(test_cases[tc]) + num_preceding, n - num_preceding));
if (!wuffs_base__utf_8__next__output__is_valid(&x) ||
(x.code_point < 0x20) || (x.code_point == '\\')) {
break;
}
num_preceding += x.byte_length;
if (num_preceding > n) {
RETURN_FAIL("tc=%d: utf_8__next overflow", tc);
}
}
int pre;
for (pre = 0; pre < WUFFS_TESTLIB_ARRAY_SIZE(prefixes); pre++) {
size_t prefix = prefixes[pre];
int suf;
for (suf = 0; suf < WUFFS_TESTLIB_ARRAY_SIZE(suffixes); suf++) {
size_t suffix = suffixes[suf];
// Set src to "\"ppp...pppMIDDLEsss...sss", with a leading quotation
// mark, where prefix and suffix are the number of 'p's and 's's and
// test_cases[tc] is the "MIDDLE".
wuffs_base__slice_u8 src_data = ((wuffs_base__slice_u8){
.ptr = global_src_array,
.len = 1 + prefix + n + suffix,
});
if (src_data.len > IO_BUFFER_ARRAY_SIZE) {
RETURN_FAIL("total src length is too long");
}
src_data.ptr[0] = '\"';
memset(&src_data.ptr[1], 'p', prefix);
memcpy(&src_data.ptr[1 + prefix], test_cases[tc], n);
memset(&src_data.ptr[1 + prefix + n], 's', suffix);
int closed;
for (closed = 0; closed < 2; closed++) {
CHECK_STATUS("initialize", wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION, 0));
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src =
wuffs_base__make_io_buffer_reader(src_data, closed != 0);
wuffs_json__decoder__decode_tokens(&dec, &tok, &src,
global_work_slice);
size_t have = 0;
while (tok.meta.ri < tok.meta.wi) {
wuffs_base__token* t = &tok.data.ptr[tok.meta.ri++];
uint64_t vbc = wuffs_base__token__value_base_category(t);
if (vbc == WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT) {
break;
} else if (vbc == WUFFS_BASE__TOKEN__VBC__STRING) {
have += wuffs_base__token__length(t);
} else {
RETURN_FAIL(
"tc=%d, prefix=%zu, suffix=%zu, closed=%d: unexpected token",
tc, prefix, suffix, closed);
}
}
size_t want = 1 + prefix + num_preceding; // 1 for the leading '\"'.
if (num_preceding == n) {
want += suffix;
}
if (have != want) {
RETURN_FAIL(
"tc=%d, prefix=%zu, suffix=%zu, closed=%d: have %zu, want %zu",
tc, prefix, suffix, closed, have, want);
}
}
}
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_quirk_allow_backslash_etc() {
CHECK_FOCUS(__func__);
struct {
uint32_t want;
const char* str;
uint32_t quirk;
} test_cases[] = {
{
.want = 0x07,
.str = "\"\\a\"",
.quirk = WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_A,
},
{
.want = 0x0001F4A9,
.str = "\"\\U0001F4A9\"",
.quirk = WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_CAPITAL_U,
},
{
.want = 0x1B,
.str = "\"\\e\"",
.quirk = WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_E,
},
{
.want = 0x3F,
.str = "\"\\?\"",
.quirk = WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_QUESTION_MARK,
},
{
.want = 0x27,
.str = "\"\\'\"",
.quirk = WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_SINGLE_QUOTE,
},
{
.want = 0x0B,
.str = "\"\\v\"",
.quirk = WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_V,
},
{
.want = 0x00,
.str = "\"\\0\"",
.quirk = WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_ZERO,
},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
int q;
for (q = 0; q < 2; q++) {
wuffs_json__decoder dec;
CHECK_STATUS("initialize", wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__DEFAULT_OPTIONS));
wuffs_json__decoder__set_quirk_enabled(&dec, test_cases[tc].quirk, q);
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src = wuffs_base__make_io_buffer_reader(
wuffs_base__make_slice_u8((void*)(test_cases[tc].str),
strlen(test_cases[tc].str)),
true);
const char* have_status_repr = wuffs_json__decoder__decode_tokens(
&dec, &tok, &src, global_work_slice)
.repr;
const char* want_status_repr =
q ? NULL : wuffs_json__error__bad_backslash_escape;
if (have_status_repr != want_status_repr) {
RETURN_FAIL("tc=%d, q=%d: decode_tokens: have \"%s\", want \"%s\"", tc,
q, have_status_repr, want_status_repr);
}
if (want_status_repr != NULL) {
continue;
}
uint32_t have = 0;
while (tok.meta.ri < tok.meta.wi) {
wuffs_base__token* t = &tok.data.ptr[tok.meta.ri++];
uint64_t vbc = wuffs_base__token__value_base_category(t);
uint64_t vbd = wuffs_base__token__value_base_detail(t);
if (vbc == WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT) {
have = vbd;
break;
}
}
if (have != test_cases[tc].want) {
RETURN_FAIL("tc=%d, q=%d: Unicode code point: have U+%04" PRIX32
", want U+%04" PRIX32,
tc, q, have, test_cases[tc].want);
}
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_quirk_allow_backslash_x() {
CHECK_FOCUS(__func__);
struct {
uint64_t want_bytes;
const char* want_status_repr;
const char* str;
} test_cases[] = {
{.want_bytes = 0x12789A,
.want_status_repr = NULL,
.str = "\"\\x12\\u3456\\x78\\x9A\""},
{.want_bytes = 0x00,
.want_status_repr = wuffs_json__error__bad_backslash_escape,
.str = "\"a\\X6A\""},
{.want_bytes = 0x6A6B,
.want_status_repr = NULL,
.str = "\"a\\x6A\\x6bz\""},
{.want_bytes = 0x6A,
.want_status_repr = wuffs_json__error__bad_backslash_escape,
.str = "\"a\\x6A\\x6yz\""},
{.want_bytes = 0x00,
.want_status_repr = wuffs_json__error__bad_backslash_escape,
.str = "\"a\\x\""},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
wuffs_json__decoder dec;
CHECK_STATUS("initialize", wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__DEFAULT_OPTIONS));
wuffs_json__decoder__set_quirk_enabled(
&dec, WUFFS_JSON__QUIRK_ALLOW_BACKSLASH_X, true);
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__slice_u8 src_slice = wuffs_base__make_slice_u8(
(void*)(test_cases[tc].str), strlen(test_cases[tc].str));
wuffs_base__io_buffer src =
wuffs_base__make_io_buffer_reader(src_slice, true);
const char* have_status_repr =
wuffs_json__decoder__decode_tokens(&dec, &tok, &src, global_work_slice)
.repr;
if (have_status_repr != test_cases[tc].want_status_repr) {
RETURN_FAIL("tc=%d: decode_tokens: have \"%s\", want \"%s\"", tc,
have_status_repr, test_cases[tc].want_status_repr);
}
uint64_t src_index = 0;
uint64_t have_bytes = 0;
while (tok.meta.ri < tok.meta.wi) {
wuffs_base__token* t = &tok.data.ptr[tok.meta.ri++];
uint64_t vbc = wuffs_base__token__value_base_category(t);
uint64_t vbd = wuffs_base__token__value_base_detail(t);
uint64_t token_length = wuffs_base__token__length(t);
if ((vbc == WUFFS_BASE__TOKEN__VBC__STRING) &&
(vbd ==
WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_4_SRC_BACKSLASH_X)) {
uint8_t b[8] = {0};
size_t n = wuffs_base__hexadecimal__decode4(
wuffs_base__make_slice_u8(&b[0], 8),
wuffs_base__make_slice_u8(src_slice.ptr + src_index, token_length));
size_t i = 0;
for (; i < n; i++) {
have_bytes <<= 8;
have_bytes |= b[i];
}
}
src_index += token_length;
}
if (have_bytes != test_cases[tc].want_bytes) {
RETURN_FAIL("tc=%d: have U+%08" PRIX64 ", want U+%08" PRIX64, tc,
have_bytes, test_cases[tc].want_bytes);
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_quirk_allow_extra_comma() {
CHECK_FOCUS(__func__);
struct {
// want has 2 bytes, one for each possible q:
// - q&1 sets WUFFS_JSON__QUIRK_ALLOW_EXTRA_COMMA.
// An 'X', '+' or '-' means that decoding should succeed (and consume the
// entire input), succeed (without consuming the entire input) or fail.
const char* want;
const char* str;
} test_cases[] = {
{.want = "-X", .str = "[0,]"},
{.want = "-X", .str = "[[], {},{\"k\":\"v\",\n}\n,\n]"},
{.want = "--", .str = "[,]"},
{.want = "--", .str = "{,}"},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
int q;
for (q = 0; q < 2; q++) {
wuffs_json__decoder dec;
CHECK_STATUS("initialize", wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__DEFAULT_OPTIONS));
wuffs_json__decoder__set_quirk_enabled(
&dec, WUFFS_JSON__QUIRK_ALLOW_EXTRA_COMMA, q & 1);
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src = wuffs_base__make_io_buffer_reader(
wuffs_base__make_slice_u8((void*)(test_cases[tc].str),
strlen(test_cases[tc].str)),
true);
const char* have = wuffs_json__decoder__decode_tokens(&dec, &tok, &src,
global_work_slice)
.repr;
const char* want =
(test_cases[tc].want[q] != '-') ? NULL : wuffs_json__error__bad_input;
if (have != want) {
RETURN_FAIL("tc=%d, q=%d: decode_tokens: have \"%s\", want \"%s\"", tc,
q, have, want);
}
size_t total_length = 0;
while (tok.meta.ri < tok.meta.wi) {
total_length += wuffs_base__token__length(&tok.data.ptr[tok.meta.ri++]);
}
if (total_length != src.meta.ri) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want %zu", tc, q,
total_length, src.meta.ri);
}
if (test_cases[tc].want[q] == 'X') {
if (total_length != src.data.len) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want %zu", tc, q,
total_length, src.data.len);
}
} else if (test_cases[tc].want[q] == '+') {
if (total_length >= src.data.len) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want < %zu", tc, q,
total_length, src.data.len);
}
}
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_quirk_allow_inf_nan_numbers() {
CHECK_FOCUS(__func__);
struct {
// want has 2 bytes, one for each possible q:
// - q&1 sets WUFFS_JSON__QUIRK_ALLOW_INF_NAN_NUMBERS.
// An 'X', '+' or '-' means that decoding should succeed (and consume the
// entire input), succeed (without consuming the entire input) or fail.
const char* want;
const char* str;
} test_cases[] = {
{.want = "-X", .str = "InFiniTy"},
{.want = "-X", .str = "[+inf, -infinity, +nan,-NaN,NAN]"},
{.want = "-X", .str = "inf"},
{.want = "-+", .str = "infinit"},
{.want = "-+", .str = "infiQity"},
{.want = "-+", .str = "nana"},
{.want = "--", .str = "+-inf"},
{.want = "--", .str = "-+inf"},
{.want = "--", .str = "[infinit,"},
{.want = "--", .str = "[infiQity,"},
{.want = "--", .str = "[nana,"},
{.want = "--", .str = "∞"},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
int q;
for (q = 0; q < 2; q++) {
wuffs_json__decoder dec;
CHECK_STATUS("initialize", wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__DEFAULT_OPTIONS));
wuffs_json__decoder__set_quirk_enabled(
&dec, WUFFS_JSON__QUIRK_ALLOW_INF_NAN_NUMBERS, q & 1);
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src = wuffs_base__make_io_buffer_reader(
wuffs_base__make_slice_u8((void*)(test_cases[tc].str),
strlen(test_cases[tc].str)),
true);
const char* have = wuffs_json__decoder__decode_tokens(&dec, &tok, &src,
global_work_slice)
.repr;
const char* want =
(test_cases[tc].want[q] != '-') ? NULL : wuffs_json__error__bad_input;
if (have != want) {
RETURN_FAIL("tc=%d, q=%d: decode_tokens: have \"%s\", want \"%s\"", tc,
q, have, want);
}
size_t total_length = 0;
while (tok.meta.ri < tok.meta.wi) {
total_length += wuffs_base__token__length(&tok.data.ptr[tok.meta.ri++]);
}
if (total_length != src.meta.ri) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want %zu", tc, q,
total_length, src.meta.ri);
}
if (test_cases[tc].want[q] == 'X') {
if (total_length != src.data.len) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want %zu", tc, q,
total_length, src.data.len);
}
} else if (test_cases[tc].want[q] == '+') {
if (total_length >= src.data.len) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want < %zu", tc, q,
total_length, src.data.len);
}
}
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_quirk_allow_comment_etc() {
CHECK_FOCUS(__func__);
struct {
// want has 4 bytes, one for each possible q:
// - q&1 sets WUFFS_JSON__QUIRK_ALLOW_COMMENT_BLOCK.
// - q&2 sets WUFFS_JSON__QUIRK_ALLOW_COMMENT_LINE.
// An 'X', '+' or '-' means that decoding should succeed (and consume the
// entire input), succeed (without consuming the entire input) or fail.
const char* want;
const char* str;
} test_cases[] = {
{.want = "-X-X", .str = "[ /*com*/ 0]"},
{.want = "--XX", .str = "//l\n //m\n0"},
{.want = "---X", .str = "[ 0, /*com*/ 1 //l\n\n]"},
{.want = "----", .str = "/*/0"}, // Not a valid slash-star comment.
{.want = "----", .str = "[4/5]"}, // Lone slash.
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
int q;
for (q = 0; q < 4; q++) {
wuffs_json__decoder dec;
CHECK_STATUS("initialize", wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__DEFAULT_OPTIONS));
wuffs_json__decoder__set_quirk_enabled(
&dec, WUFFS_JSON__QUIRK_ALLOW_COMMENT_BLOCK, q & 1);
wuffs_json__decoder__set_quirk_enabled(
&dec, WUFFS_JSON__QUIRK_ALLOW_COMMENT_LINE, q & 2);
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src = wuffs_base__make_io_buffer_reader(
wuffs_base__make_slice_u8((void*)(test_cases[tc].str),
strlen(test_cases[tc].str)),
true);
const char* have = wuffs_json__decoder__decode_tokens(&dec, &tok, &src,
global_work_slice)
.repr;
const char* want =
(test_cases[tc].want[q] != '-') ? NULL : wuffs_json__error__bad_input;
if (have != want) {
RETURN_FAIL("tc=%d, q=%d: decode_tokens: have \"%s\", want \"%s\"", tc,
q, have, want);
}
size_t total_length = 0;
while (tok.meta.ri < tok.meta.wi) {
total_length += wuffs_base__token__length(&tok.data.ptr[tok.meta.ri++]);
}
if (total_length != src.meta.ri) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want %zu", tc, q,
total_length, src.meta.ri);
}
if (test_cases[tc].want[q] == 'X') {
if (total_length != src.data.len) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want %zu", tc, q,
total_length, src.data.len);
}
} else if (test_cases[tc].want[q] == '+') {
if (total_length >= src.data.len) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want < %zu", tc, q,
total_length, src.data.len);
}
}
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_quirk_allow_leading_etc() {
CHECK_FOCUS(__func__);
struct {
// want has 4 bytes, one for each possible q:
// - q&1 sets WUFFS_JSON__QUIRK_ALLOW_LEADING_ASCII_RECORD_SEPARATOR.
// - q&2 sets WUFFS_JSON__QUIRK_ALLOW_LEADING_UNICODE_BYTE_ORDER_MARK.
// An 'X', '+' or '-' means that decoding should succeed (and consume the
// entire input), succeed (without consuming the entire input) or fail.
const char* want;
const char* str;
} test_cases[] = {
{.want = "-X-X", .str = "\x1Etrue"},
{.want = "--XX", .str = "\xEF\xBB\xBFtrue"},
{.want = "---X", .str = "\x1E\xEF\xBB\xBFtrue"},
{.want = "---X", .str = "\xEF\xBB\xBF\x1Etrue"},
{.want = "----", .str = " \x1Etrue"},
{.want = "----", .str = "\x1E \xEF\xBB\xBFtrue"},
{.want = "----", .str = "\x1E\x1Etrue"},
{.want = "----", .str = "\xEF\xBB"},
{.want = "----", .str = "\xEF\xBB\xBF"},
{.want = "----", .str = "\xEF\xBB\xBF$"},
{.want = "----", .str = "\xEFtrue"},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
int q;
for (q = 0; q < 4; q++) {
wuffs_json__decoder dec;
CHECK_STATUS("initialize", wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__DEFAULT_OPTIONS));
wuffs_json__decoder__set_quirk_enabled(
&dec, WUFFS_JSON__QUIRK_ALLOW_LEADING_ASCII_RECORD_SEPARATOR, q & 1);
wuffs_json__decoder__set_quirk_enabled(
&dec, WUFFS_JSON__QUIRK_ALLOW_LEADING_UNICODE_BYTE_ORDER_MARK, q & 2);
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src = wuffs_base__make_io_buffer_reader(
wuffs_base__make_slice_u8((void*)(test_cases[tc].str),
strlen(test_cases[tc].str)),
true);
const char* have = wuffs_json__decoder__decode_tokens(&dec, &tok, &src,
global_work_slice)
.repr;
const char* want =
(test_cases[tc].want[q] != '-') ? NULL : wuffs_json__error__bad_input;
if (have != want) {
RETURN_FAIL("tc=%d, q=%d: decode_tokens: have \"%s\", want \"%s\"", tc,
q, have, want);
}
size_t total_length = 0;
while (tok.meta.ri < tok.meta.wi) {
total_length += wuffs_base__token__length(&tok.data.ptr[tok.meta.ri++]);
}
if (total_length != src.meta.ri) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want %zu", tc, q,
total_length, src.meta.ri);
}
if (test_cases[tc].want[q] == 'X') {
if (total_length != src.data.len) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want %zu", tc, q,
total_length, src.data.len);
}
} else if (test_cases[tc].want[q] == '+') {
if (total_length >= src.data.len) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want < %zu", tc, q,
total_length, src.data.len);
}
}
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_quirk_allow_trailing_etc() {
CHECK_FOCUS(__func__);
struct {
// want has 2 bytes, one for each possible q:
// - q&1 sets WUFFS_JSON__QUIRK_ALLOW_TRAILING_NEW_LINE.
// An 'X', '+' or '-' means that decoding should succeed (and consume the
// entire input), succeed (without consuming the entire input) or fail.
const char* want;
const char* str;
} test_cases[] = {
{.want = "++", .str = "0 \n "}, //
{.want = "++", .str = "0 \n\n"}, //
{.want = "++", .str = "0\n\n"}, //
{.want = "+-", .str = "0 true \n"}, //
{.want = "+-", .str = "007"}, //
{.want = "+-", .str = "007\n"}, //
{.want = "+-", .str = "0true "}, //
{.want = "+-", .str = "0true"}, //
{.want = "+X", .str = "0 "}, //
{.want = "+X", .str = "0 \n"}, //
{.want = "+X", .str = "0\n"}, //
{.want = "+X", .str = "0\t\r\n"}, //
{.want = "--", .str = "\n"}, //
{.want = "XX", .str = "0"}, //
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
int q;
for (q = 0; q < 2; q++) {
wuffs_json__decoder dec;
CHECK_STATUS("initialize", wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__DEFAULT_OPTIONS));
wuffs_json__decoder__set_quirk_enabled(
&dec, WUFFS_JSON__QUIRK_ALLOW_TRAILING_NEW_LINE, q & 1);
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src = wuffs_base__make_io_buffer_reader(
wuffs_base__make_slice_u8((void*)(test_cases[tc].str),
strlen(test_cases[tc].str)),
true);
const char* have = wuffs_json__decoder__decode_tokens(&dec, &tok, &src,
global_work_slice)
.repr;
const char* want =
(test_cases[tc].want[q] != '-') ? NULL : wuffs_json__error__bad_input;
if (have != want) {
RETURN_FAIL("tc=%d, q=%d: decode_tokens: have \"%s\", want \"%s\"", tc,
q, have, want);
}
size_t total_length = 0;
while (tok.meta.ri < tok.meta.wi) {
total_length += wuffs_base__token__length(&tok.data.ptr[tok.meta.ri++]);
}
if (total_length != src.meta.ri) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want %zu", tc, q,
total_length, src.meta.ri);
}
if (test_cases[tc].want[q] == 'X') {
if (total_length != src.data.len) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want %zu", tc, q,
total_length, src.data.len);
}
} else if (test_cases[tc].want[q] == '+') {
if (total_length >= src.data.len) {
RETURN_FAIL("tc=%d, q=%d: total_length: have %zu, want < %zu", tc, q,
total_length, src.data.len);
}
}
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_quirk_replace_invalid_unicode() {
CHECK_FOCUS(__func__);
// Decoding str should produce want, with invalid UTF-8 replaced by "?". A
// proper JSON decoder (with the quirk enabled) would replace with
// "\xEF\xBF\xBD", the UTF-8 encoding of U+FFFD, but using "?" leads to
// clearer, shorter test cases.
struct {
const char* want;
const char* str;
} test_cases[] = {
// Valid UTF-8.
{.want = "abc", .str = "\"abc\""},
{.want = "del\xCE\x94ta", .str = "\"del\\u0394ta\""},
{.want = "del\xCE\x94ta", .str = "\"del\xCE\x94ta\""},
// Invalid UTF-8: right byte lengths, wrong bytes.
{.want = "1byte?yz", .str = "\"1byte\xFFyz\""},
{.want = "2byte??yz", .str = "\"2byte\xCE\xFFyz\""},
{.want = "3byte???yz", .str = "\"3byte\xE2\x98\xFFyz\""},
{.want = "4byte????yz", .str = "\"4byte\xF0\x9F\x92\xFFyz\""},
// Invalid UTF-8: wrong byte lengths.
{.want = "?", .str = "\"\xCE\""},
{.want = "?g", .str = "\"\xCEg\""},
{.want = "?gh", .str = "\"\xCEgh\""},
{.want = "j?", .str = "\"j\xE2\""},
{.want = "j?l", .str = "\"j\xE2l\""},
{.want = "j?lm", .str = "\"j\xE2lm\""},
{.want = "?", .str = "\"\xF0\""},
{.want = "?r", .str = "\"\xF0r\""},
{.want = "?rs", .str = "\"\xF0rs\""},
// U+DC00 (as an unpaired surrogate) is either 1 or 3 '?'s depending on
// whether it's backslash-u or backslash-x.
{.want = "a?z", .str = "\"a\\uDC00z\""},
{.want = "a?zzzzzz", .str = "\"a\\uDC00zzzzzz\""},
{.want = "a???z", .str = "\"a\xED\xB0\x80z\""},
{.want = "a???zzzzzz", .str = "\"a\xED\xB0\x80zzzzzz\""},
// 1 or 2 unpaired surrogates each become '?'s, but for 3 surrogates
// where consecutive surrogates make a valid pair, there's only 1 '?'.
{.want = "a?z", .str = "\"a\\uD800z\""},
{.want = "a??z", .str = "\"a\\uD800\\uDBFFz\""},
{.want = "a?\xF4\x8F\xBF\xBFz", .str = "\"a\\uD800\\uDBFF\\uDFFFz\""},
{.want = "a\xF0\x90\x80\x80?z", .str = "\"a\\uD800\\uDC00\\uDFFFz\""},
};
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
wuffs_json__decoder dec;
CHECK_STATUS("initialize", wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__DEFAULT_OPTIONS));
wuffs_json__decoder__set_quirk_enabled(
&dec, WUFFS_JSON__QUIRK_REPLACE_INVALID_UNICODE, true);
wuffs_base__io_buffer have =
wuffs_base__make_io_buffer_writer(global_have_slice);
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src = wuffs_base__make_io_buffer_reader(
wuffs_base__make_slice_u8((void*)(test_cases[tc].str),
strlen(test_cases[tc].str)),
true);
CHECK_STATUS("decode_tokens", wuffs_json__decoder__decode_tokens(
&dec, &tok, &src, global_work_slice));
uint64_t src_index = 0;
while (tok.meta.ri < tok.meta.wi) {
wuffs_base__token* t = &tok.data.ptr[tok.meta.ri++];
uint64_t vbc = wuffs_base__token__value_base_category(t);
uint64_t vbd = wuffs_base__token__value_base_detail(t);
uint64_t token_length = wuffs_base__token__length(t);
if (vbc == WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT) {
uint8_t u[WUFFS_BASE__UTF_8__BYTE_LENGTH__MAX_INCL];
size_t n = wuffs_base__utf_8__encode(
wuffs_base__make_slice_u8(&u[0],
WUFFS_BASE__UTF_8__BYTE_LENGTH__MAX_INCL),
vbd);
if (vbd == 0xFFFD) {
u[0] = '?';
n = 1;
}
if ((have.data.len - have.meta.wi) < n) {
RETURN_FAIL("tc=%d: token too long", tc);
}
memcpy(&have.data.ptr[have.meta.wi], &u[0], n);
have.meta.wi += n;
} else if (vbc == WUFFS_BASE__TOKEN__VBC__STRING) {
if (vbd & WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_0_DST_1_SRC_DROP) {
// No-op.
} else if (vbd &
WUFFS_BASE__TOKEN__VBD__STRING__CONVERT_1_DST_1_SRC_COPY) {
if ((have.data.len - have.meta.wi) < token_length) {
RETURN_FAIL("tc=%d: token too long", tc);
}
memcpy(&have.data.ptr[have.meta.wi], &test_cases[tc].str[src_index],
token_length);
have.meta.wi += token_length;
} else {
RETURN_FAIL("tc=%d: unexpected string-token conversion", tc);
}
} else {
RETURN_FAIL("tc=%d: unexpected token", tc);
}
src_index += token_length;
}
if (src_index != src.meta.ri) {
RETURN_FAIL("tc=%d: src_index: have %zu, want %zu", tc, src_index,
src.meta.ri);
}
if (have.meta.wi >= have.data.len) {
RETURN_FAIL("tc=%d: too many have bytes", tc);
}
have.data.ptr[have.meta.wi] = '\x00';
size_t len = strlen(test_cases[tc].want);
if ((len != have.meta.wi) ||
(memcmp(have.data.ptr, test_cases[tc].want, len) != 0)) {
RETURN_FAIL("tc=%d: have \"%s\", want \"%s\"", tc, have.data.ptr,
test_cases[tc].want);
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_unicode4_escapes() {
CHECK_FOCUS(__func__);
const uint32_t fail = 0xDEADBEEF;
struct {
uint32_t want;
const char* str;
} test_cases[] = {
// Simple (non-surrogate) successes.
{.want = 0x0000000A, .str = "\"\\u000a\""},
{.want = 0x0000005C, .str = "\"\\\\u1234\""}, // U+005C is '\\'.
{.want = 0x00001000, .str = "\"\\u10002345\""},
{.want = 0x00001000, .str = "\"\\u1000234\""},
{.want = 0x00001000, .str = "\"\\u100023\""},
{.want = 0x00001000, .str = "\"\\u10002\""},
{.want = 0x00001234, .str = "\"\\u1234\""},
{.want = 0x0000D7FF, .str = "\"\\ud7ff\""},
{.want = 0x0000E000, .str = "\"\\uE000\""},
{.want = 0x0000FFFF, .str = "\"\\uFffF\""},
// Unicode surrogate pair. U+0001F4A9 PILE OF POO is (U+D83D, U+DCA9),
// because ((0x03D << 10) | 0x0A9) is 0xF4A9:
// - High surrogates are in the range U+D800 ..= U+DBFF.
// - Low surrogates are in the range U+DC00 ..= U+DFFF.
{.want = 0x0001F4A9, .str = "\"\\uD83D\\udca9\""},
// More surrogate pairs.
{.want = 0x00010000, .str = "\"\\uD800\\uDC00\""},
{.want = 0x0010FFFF, .str = "\"\\uDBFF\\uDFFF\""},
// Simple (non-surrogate) failures.
{.want = fail, .str = "\"\\U1234\""},
{.want = fail, .str = "\"\\u123"},
{.want = fail, .str = "\"\\u123\""},
{.want = fail, .str = "\"\\u123x\""},
{.want = fail, .str = "\"u1234\""},
// Invalid surrogate pairs.
{.want = fail, .str = "\"\\uD800\""}, // High alone.
{.want = fail, .str = "\"\\uD83D?udca9\""}, // High then not "\\u".
{.want = fail, .str = "\"\\uD83D\\ud7ff\""}, // High then non-surrogate.
{.want = fail, .str = "\"\\uD83D\\udbff\""}, // High then high.
{.want = fail, .str = "\"\\uD83D\\ue000\""}, // High then non-surrogate.
{.want = fail, .str = "\"\\uDC00\""}, // Low alone.
{.want = fail, .str = "\"\\uDC00\\u0000\""}, // Low then non-surrogate.
{.want = fail, .str = "\"\\uDC00\\ud800\""}, // Low then high.
{.want = fail, .str = "\"\\uDC00\\udfff\""}, // Low then low.
{.want = fail, .str = "\"\\uDFFF1234\""}, // Low alone.
};
wuffs_json__decoder dec;
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
CHECK_STATUS("initialize",
wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED));
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src = wuffs_base__make_io_buffer_reader(
wuffs_base__make_slice_u8((void*)(test_cases[tc].str),
strlen(test_cases[tc].str)),
true);
wuffs_json__decoder__decode_tokens(&dec, &tok, &src, global_work_slice);
uint32_t have = fail;
uint64_t total_length = 0;
size_t i;
for (i = tok.meta.ri; i < tok.meta.wi; i++) {
wuffs_base__token* t = &tok.data.ptr[i];
total_length =
wuffs_base__u64__sat_add(total_length, wuffs_base__token__length(t));
// Set have to the first Unicode code point token.
if ((have == fail) && ((wuffs_base__token__value_base_category(t) ==
WUFFS_BASE__TOKEN__VBC__UNICODE_CODE_POINT))) {
have = wuffs_base__token__value_base_detail(t);
if (have > 0x10FFFF) { // This also catches "have == fail".
RETURN_FAIL("%s: invalid Unicode code point", test_cases[tc].str);
}
uint64_t have_length = wuffs_base__token__length(t);
uint64_t want_length = (have == 0x5C) ? 2 : ((have <= 0xFFFF) ? 6 : 12);
if (have_length != want_length) {
RETURN_FAIL("%s: token length: have %" PRIu64 ", want %" PRIu64,
test_cases[tc].str, have_length, want_length);
}
}
}
if (have != test_cases[tc].want) {
RETURN_FAIL("%s: have 0x%" PRIX32 ", want 0x%" PRIX32, test_cases[tc].str,
have, test_cases[tc].want);
}
if (total_length != src.meta.ri) {
RETURN_FAIL("%s: total length: have %" PRIu64 ", want %" PRIu64,
test_cases[tc].str, total_length, src.meta.ri);
}
}
return NULL;
}
// test_wuffs_json_decode_src_io_buffer_length tests that given a sufficient
// amount of source data (WUFFS_JSON__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL or
// more), decoding will always return a conclusive result, not a suspension
// such as "$short read".
//
// The JSON specification doesn't give a maximum byte length for a number, but
// implementations are permitted to impose one. Wuffs' implementation imposes
// WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL.
const char* //
test_wuffs_json_decode_src_io_buffer_length() {
CHECK_FOCUS(__func__);
if (WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL >=
WUFFS_JSON__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL) {
RETURN_FAIL(
"inconsistent WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL vs "
"WUFFS_JSON__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL");
}
// src_array holds the test string of repeated '7's. 107 is arbitrary but
// long enough for the loop below.
uint8_t src_array[107];
memset(&src_array[0], '7', 107);
wuffs_json__decoder dec;
int i;
for (i = WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL - 2;
i <= WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL + 2; i++) {
if (i < 0) {
RETURN_FAIL("invalid test case: i=%d", i);
} else if (i > 107) {
RETURN_FAIL("invalid test case: i=%d", i);
}
wuffs_base__slice_u8 src_data = ((wuffs_base__slice_u8){
.ptr = &src_array[0],
.len = i,
});
int closed;
for (closed = 0; closed < 2; closed++) {
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src =
wuffs_base__make_io_buffer_reader(src_data, closed != 0);
CHECK_STATUS("initialize",
wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED));
wuffs_base__status have = wuffs_json__decoder__decode_tokens(
&dec, &tok, &src, global_work_slice);
const char* want =
(i > WUFFS_JSON__DECODER_NUMBER_LENGTH_MAX_INCL)
? wuffs_json__error__unsupported_number_length
: (closed ? NULL : wuffs_base__suspension__short_read);
if (have.repr != want) {
RETURN_FAIL("i=%d, closed=%d: have \"%s\", want \"%s\"", i, closed,
have.repr, want);
}
if ((i >= WUFFS_JSON__DECODER_SRC_IO_BUFFER_LENGTH_MIN_INCL) &&
wuffs_base__status__is_suspension(&have)) {
RETURN_FAIL("i=%d, closed=%d: have a suspension", i, closed);
}
}
}
return NULL;
}
const char* //
test_wuffs_json_decode_string() {
CHECK_FOCUS(__func__);
const char* bad_bac = wuffs_json__error__bad_backslash_escape;
const char* bad_ccc = wuffs_json__error__bad_c0_control_code;
const char* bad_utf = wuffs_json__error__bad_utf_8;
struct {
const char* want_status_repr;
const char* str;
} test_cases[] = {
{.want_status_repr = NULL, .str = "\"+++\\\"+\\/+\\\\+++\""},
{.want_status_repr = NULL, .str = "\"+++\\b+\\f+\\n+\\r+\\t+++\""},
{.want_status_repr = NULL, .str = "\"\x20\""}, // U+00000020.
{.want_status_repr = NULL, .str = "\"\xC2\x80\""}, // U+00000080.
{.want_status_repr = NULL, .str = "\"\xCE\x94\""}, // U+00000394.
{.want_status_repr = NULL, .str = "\"\xDF\xBF\""}, // U+000007FF.
{.want_status_repr = NULL, .str = "\"\xE0\xA0\x80\""}, // U+00000800.
{.want_status_repr = NULL, .str = "\"\xE2\x98\x83\""}, // U+00002603.
{.want_status_repr = NULL, .str = "\"\xED\x80\x80\""}, // U+0000D000.
{.want_status_repr = NULL, .str = "\"\xED\x9F\xBF\""}, // U+0000D7FF.
{.want_status_repr = NULL, .str = "\"\xEE\x80\x80\""}, // U+0000E000.
{.want_status_repr = NULL, .str = "\"\xEF\xBF\xBD\""}, // U+0000FFFD.
{.want_status_repr = NULL, .str = "\"\xEF\xBF\xBF\""}, // U+0000FFFF.
{.want_status_repr = NULL, .str = "\"\xF0\x90\x80\x80\""}, // U+00010000.
{.want_status_repr = NULL, .str = "\"\xF0\x9F\x92\xA9\""}, // U+0001F4A9.
{.want_status_repr = NULL, .str = "\"\xF0\xB0\x80\x81\""}, // U+00030001.
{.want_status_repr = NULL, .str = "\"\xF1\xB0\x80\x82\""}, // U+00070002.
{.want_status_repr = NULL, .str = "\"\xF3\xB0\x80\x83\""}, // U+000F0003.
{.want_status_repr = NULL, .str = "\"\xF4\x80\x80\x84\""}, // U+00100004.
{.want_status_repr = NULL, .str = "\"\xF4\x8F\xBF\xBF\""}, // U+0010FFFF.
{.want_status_repr = NULL, .str = "\"abc\""},
{.want_status_repr = NULL, .str = "\"i\x6Ak\""},
{.want_status_repr = NULL, .str = "\"space+\x20+space\""},
{.want_status_repr = NULL, .str = "\"tab+\\t+tab\""},
{.want_status_repr = NULL, .str = "\"tab+\\u0009+tab\""},
{.want_status_repr = bad_bac, .str = "\"\\uIJKL\""},
{.want_status_repr = bad_bac, .str = "\"space+\\x20+space\""},
{.want_status_repr = bad_ccc, .str = "\"\x1F\""},
{.want_status_repr = bad_ccc, .str = "\"tab+\t+tab\""},
{.want_status_repr = bad_utf, .str = "\"\x80\""},
{.want_status_repr = bad_utf, .str = "\"\xBF\""},
{.want_status_repr = bad_utf, .str = "\"\xC1\x80\""},
{.want_status_repr = bad_utf, .str = "\"\xC2\x7F\""},
{.want_status_repr = bad_utf, .str = "\"\xDF\xC0\""},
{.want_status_repr = bad_utf, .str = "\"\xDF\xFF\""},
{.want_status_repr = bad_utf, .str = "\"\xE0\x9F\xBF\""},
{.want_status_repr = bad_utf, .str = "\"\xED\xA0\x80\""}, // U+0000D800.
{.want_status_repr = bad_utf, .str = "\"\xED\xAF\xBF\""}, // U+0000DBFF.
{.want_status_repr = bad_utf, .str = "\"\xED\xB0\x80\""}, // U+0000DC00.
{.want_status_repr = bad_utf, .str = "\"\xED\xBF\xBF\""}, // U+0000DFFF.
{.want_status_repr = bad_utf, .str = "\"\xF0\x80\x80\""},
{.want_status_repr = bad_utf, .str = "\"\xF0\x8F\xBF\xBF\""},
{.want_status_repr = bad_utf, .str = "\"\xF2\x7F\x80\x80\""},
{.want_status_repr = bad_utf, .str = "\"\xF2\x80\x7F\x80\""},
{.want_status_repr = bad_utf, .str = "\"\xF2\x80\x80\x7F\""},
{.want_status_repr = bad_utf, .str = "\"\xF4\x90\x80\x80\""},
{.want_status_repr = bad_utf, .str = "\"\xF5\""},
{.want_status_repr = bad_utf, .str = "\"\xFF\xFF\xFF\xFF\""},
};
wuffs_json__decoder dec;
int tc;
for (tc = 0; tc < WUFFS_TESTLIB_ARRAY_SIZE(test_cases); tc++) {
CHECK_STATUS("initialize",
wuffs_json__decoder__initialize(
&dec, sizeof dec, WUFFS_VERSION,
WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED));
wuffs_base__token_buffer tok =
wuffs_base__make_token_buffer_writer(global_have_token_slice);
wuffs_base__io_buffer src = wuffs_base__make_io_buffer_reader(
wuffs_base__make_slice_u8((void*)(test_cases[tc].str),
strlen(test_cases[tc].str)),
true);
wuffs_base__status have_status =
wuffs_json__decoder__decode_tokens(&dec, &tok, &src, global_work_slice);
uint64_t total_length = 0;
size_t i;
for (i = tok.meta.ri; i < tok.meta.wi; i++) {
wuffs_base__token* t = &tok.data.ptr[i];
total_length =
wuffs_base__u64__sat_add(total_length, wuffs_base__token__length(t));
}
if (have_status.repr != test_cases[tc].want_status_repr) {
RETURN_FAIL("%s: have \"%s\", want \"%s\"", test_cases[tc].str,
have_status.repr, test_cases[tc].want_status_repr);
}
if (total_length != src.meta.ri) {
RETURN_FAIL("%s: total length: have %" PRIu64 ", want %" PRIu64,
test_cases[tc].str, total_length, src.meta.ri);
}
}
return NULL;
}
// ---------------- Mimic Tests
#ifdef WUFFS_MIMIC
// No mimic tests.
#endif // WUFFS_MIMIC
// ---------------- JSON Benches
const char* //
bench_wuffs_json_decode_1k() {
CHECK_FOCUS(__func__);
return do_bench_token_decoder(
wuffs_json_decode, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED,
tcounter_src, &json_github_tags_gt, UINT64_MAX, UINT64_MAX, 10000);
}
const char* //
bench_wuffs_json_decode_21k_formatted() {
CHECK_FOCUS(__func__);
return do_bench_token_decoder(
wuffs_json_decode, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED,
tcounter_src, &json_file_sizes_gt, UINT64_MAX, UINT64_MAX, 300);
}
const char* //
bench_wuffs_json_decode_26k_compact() {
CHECK_FOCUS(__func__);
return do_bench_token_decoder(
wuffs_json_decode, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED,
tcounter_src, &json_australian_abc_gt, UINT64_MAX, UINT64_MAX, 250);
}
const char* //
bench_wuffs_json_decode_217k_stringy() {
CHECK_FOCUS(__func__);
return do_bench_token_decoder(
wuffs_json_decode, WUFFS_INITIALIZE__LEAVE_INTERNAL_BUFFERS_UNINITIALIZED,
tcounter_src, &json_nobel_prizes_gt, UINT64_MAX, UINT64_MAX, 25);
}
// ---------------- Mimic Benches
#ifdef WUFFS_MIMIC
// No mimic benches.
#endif // WUFFS_MIMIC
// ---------------- Manifest
proc tests[] = {
// These strconv tests are really testing the Wuffs base library. They
// aren't specific to the std/json code, but putting them here is as good
// as any other place.
test_strconv_hexadecimal,
test_strconv_hpd_rounded_integer,
test_strconv_hpd_shift,
test_strconv_parse_number_f64,
test_strconv_parse_number_i64,
test_strconv_parse_number_u64,
test_strconv_utf_8_next,
test_wuffs_json_decode_end_of_data,
test_wuffs_json_decode_interface,
test_wuffs_json_decode_long_numbers,
test_wuffs_json_decode_prior_valid_utf_8,
test_wuffs_json_decode_quirk_allow_backslash_etc,
test_wuffs_json_decode_quirk_allow_backslash_x,
test_wuffs_json_decode_quirk_allow_comment_etc,
test_wuffs_json_decode_quirk_allow_extra_comma,
test_wuffs_json_decode_quirk_allow_inf_nan_numbers,
test_wuffs_json_decode_quirk_allow_leading_etc,
test_wuffs_json_decode_quirk_allow_trailing_etc,
test_wuffs_json_decode_quirk_replace_invalid_unicode,
test_wuffs_json_decode_src_io_buffer_length,
test_wuffs_json_decode_string,
test_wuffs_json_decode_unicode4_escapes,
#ifdef WUFFS_MIMIC
// No mimic tests.
#endif // WUFFS_MIMIC
NULL,
};
proc benches[] = {
bench_wuffs_json_decode_1k,
bench_wuffs_json_decode_21k_formatted,
bench_wuffs_json_decode_26k_compact,
bench_wuffs_json_decode_217k_stringy,
#ifdef WUFFS_MIMIC
// No mimic benches.
#endif // WUFFS_MIMIC
NULL,
};
int //
main(int argc, char** argv) {
proc_package_name = "std/json";
return test_main(argc, argv, tests, benches);
}