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/* Copyright JS Foundation and other contributors, http://js.foundation
*
* 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
*
* http://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.
*/
#include "ecma-helpers.h"
#include "ecma-init-finalize.h"
#include "lit-strings.h"
#include "test-common.h"
/* Iterations count. */
#define test_iters (1024)
/* Sub iterations count. */
#define test_subiters (128)
/* Max bytes in string. */
#define max_bytes_in_string (65 * 1024)
#define max_code_units_in_string (max_bytes_in_string)
typedef enum
{
CESU8_ANY_SIZE,
CESU8_ONE_BYTE,
CESU8_TWO_BYTES,
CESU8_THREE_BYTES,
} utf8_char_size;
static lit_utf8_size_t
generate_cesu8_char (utf8_char_size char_size, lit_utf8_byte_t *buf)
{
TEST_ASSERT (char_size >= 0 && char_size <= LIT_CESU8_MAX_BYTES_IN_CODE_UNIT);
lit_code_point_t code_point = (lit_code_point_t) rand ();
if (char_size == 1)
{
code_point %= LIT_UTF8_1_BYTE_CODE_POINT_MAX;
}
else if (char_size == 2)
{
code_point =
LIT_UTF8_2_BYTE_CODE_POINT_MIN + code_point % (LIT_UTF8_2_BYTE_CODE_POINT_MAX - LIT_UTF8_2_BYTE_CODE_POINT_MIN);
}
else if (char_size == 3)
{
code_point =
LIT_UTF8_3_BYTE_CODE_POINT_MIN + code_point % (LIT_UTF8_3_BYTE_CODE_POINT_MAX - LIT_UTF8_3_BYTE_CODE_POINT_MIN);
}
else
{
code_point %= LIT_UTF8_3_BYTE_CODE_POINT_MAX;
}
if (code_point >= LIT_UTF16_HIGH_SURROGATE_MIN && code_point <= LIT_UTF16_LOW_SURROGATE_MAX)
{
code_point = LIT_UTF16_HIGH_SURROGATE_MIN - 1;
}
return lit_code_unit_to_utf8 ((ecma_char_t) code_point, buf);
} /* generate_cesu8_char */
static lit_utf8_size_t
generate_cesu8_string (lit_utf8_byte_t *buf_p, lit_utf8_size_t buf_size)
{
lit_utf8_size_t length = 0;
lit_utf8_size_t size = 0;
while (size < buf_size)
{
const utf8_char_size char_size =
(((buf_size - size) > LIT_CESU8_MAX_BYTES_IN_CODE_UNIT) ? CESU8_ANY_SIZE : (utf8_char_size) (buf_size - size));
lit_utf8_size_t bytes_generated = generate_cesu8_char (char_size, buf_p);
TEST_ASSERT (lit_is_valid_cesu8_string (buf_p, bytes_generated));
size += bytes_generated;
buf_p += bytes_generated;
length++;
}
TEST_ASSERT (size == buf_size);
return length;
} /* generate_cesu8_string */
int
main (void)
{
TEST_INIT ();
jmem_init ();
ecma_init ();
lit_utf8_byte_t cesu8_string[max_bytes_in_string];
ecma_char_t code_units[max_code_units_in_string];
const lit_utf8_byte_t *saved_positions[max_code_units_in_string];
for (int i = 0; i < test_iters; i++)
{
lit_utf8_size_t cesu8_string_size = (i == 0) ? 0 : (lit_utf8_size_t) (rand () % max_bytes_in_string);
lit_utf8_size_t length = generate_cesu8_string (cesu8_string, cesu8_string_size);
ecma_string_t *char_collection_string_p = ecma_new_ecma_string_from_utf8 (cesu8_string, cesu8_string_size);
lit_utf8_size_t char_collection_len = ecma_string_get_length (char_collection_string_p);
TEST_ASSERT (char_collection_len == length);
ecma_deref_ecma_string (char_collection_string_p);
TEST_ASSERT (lit_utf8_string_length (cesu8_string, cesu8_string_size) == length);
const lit_utf8_byte_t *curr_p = cesu8_string;
const lit_utf8_byte_t *end_p = cesu8_string + cesu8_string_size;
lit_utf8_size_t calculated_length = 0;
lit_utf8_size_t code_units_count = 0;
while (curr_p < end_p)
{
code_units[code_units_count] = lit_cesu8_peek_next (curr_p);
saved_positions[code_units_count] = curr_p;
code_units_count++;
calculated_length++;
lit_utf8_incr (&curr_p);
}
TEST_ASSERT (length == calculated_length);
if (code_units_count > 0)
{
for (int j = 0; j < test_subiters; j++)
{
lit_utf8_size_t index = (lit_utf8_size_t) rand () % code_units_count;
curr_p = saved_positions[index];
TEST_ASSERT (lit_cesu8_peek_next (curr_p) == code_units[index]);
}
}
curr_p = (lit_utf8_byte_t *) end_p;
while (curr_p > cesu8_string)
{
TEST_ASSERT (code_units_count > 0);
calculated_length--;
TEST_ASSERT (code_units[calculated_length] == lit_cesu8_peek_prev (curr_p));
lit_utf8_decr (&curr_p);
}
TEST_ASSERT (calculated_length == 0);
while (curr_p < end_p)
{
ecma_char_t code_unit = lit_cesu8_read_next (&curr_p);
TEST_ASSERT (code_unit == code_units[calculated_length]);
calculated_length++;
}
TEST_ASSERT (length == calculated_length);
while (curr_p > cesu8_string)
{
TEST_ASSERT (code_units_count > 0);
calculated_length--;
TEST_ASSERT (code_units[calculated_length] == lit_cesu8_read_prev (&curr_p));
}
TEST_ASSERT (calculated_length == 0);
}
/* Overlong-encoded code point */
lit_utf8_byte_t invalid_cesu8_string_1[] = { 0xC0, 0x82 };
TEST_ASSERT (!lit_is_valid_cesu8_string (invalid_cesu8_string_1, sizeof (invalid_cesu8_string_1)));
/* Overlong-encoded code point */
lit_utf8_byte_t invalid_cesu8_string_2[] = { 0xE0, 0x80, 0x81 };
TEST_ASSERT (!lit_is_valid_cesu8_string (invalid_cesu8_string_2, sizeof (invalid_cesu8_string_2)));
/* Pair of surrogates: 0xD901 0xDFF0 which encode Unicode character 0x507F0 */
lit_utf8_byte_t invalid_cesu8_string_3[] = { 0xED, 0xA4, 0x81, 0xED, 0xBF, 0xB0 };
TEST_ASSERT (lit_is_valid_cesu8_string (invalid_cesu8_string_3, sizeof (invalid_cesu8_string_3)));
/* Isolated high surrogate 0xD901 */
lit_utf8_byte_t valid_utf8_string_1[] = { 0xED, 0xA4, 0x81 };
TEST_ASSERT (lit_is_valid_cesu8_string (valid_utf8_string_1, sizeof (valid_utf8_string_1)));
lit_utf8_byte_t res_buf[3];
lit_utf8_size_t res_size;
res_size = lit_code_unit_to_utf8 (0x73, res_buf);
TEST_ASSERT (res_size == 1);
TEST_ASSERT (res_buf[0] == 0x73);
res_size = lit_code_unit_to_utf8 (0x41A, res_buf);
TEST_ASSERT (res_size == 2);
TEST_ASSERT (res_buf[0] == 0xD0);
TEST_ASSERT (res_buf[1] == 0x9A);
res_size = lit_code_unit_to_utf8 (0xD7FF, res_buf);
TEST_ASSERT (res_size == 3);
TEST_ASSERT (res_buf[0] == 0xED);
TEST_ASSERT (res_buf[1] == 0x9F);
TEST_ASSERT (res_buf[2] == 0xBF);
/* Ascii string */
lit_utf8_byte_t utf8_string_ascii[] = { 'G', 'o', 'o', 'd', 'b', 'y', 'e' };
TEST_ASSERT (lit_is_valid_utf8_string (utf8_string_ascii, sizeof (utf8_string_ascii), true));
/* Control character */
lit_utf8_byte_t utf8_string_control[] = { 0x00 };
TEST_ASSERT (lit_is_valid_utf8_string (utf8_string_control, sizeof (utf8_string_control), true));
/* 3 byte characters */
lit_utf8_byte_t utf8_string_3byte[] = { 0xe4, 0xbd, 0xa0, 0xe5, 0xa5, 0xbd, 0xe4, 0xb8, 0x96, 0xe7, 0x95, 0x8c };
TEST_ASSERT (lit_is_valid_utf8_string (utf8_string_3byte, sizeof (utf8_string_3byte), true));
/* 4 byte characters */
lit_utf8_byte_t utf8_string_4byte[] = { 0xf0, 0x90, 0x80, 0x80, 0xf0, 0x9f, 0xa7, 0xbf };
TEST_ASSERT (lit_is_valid_utf8_string (utf8_string_4byte, sizeof (utf8_string_4byte), true));
/* Invalid continuation byte */
lit_utf8_byte_t utf8_string_invalid[] = { 0xa0 };
TEST_ASSERT (!lit_is_valid_utf8_string (utf8_string_invalid, sizeof (utf8_string_invalid), true));
/* Isolated high surrogate */
lit_utf8_byte_t utf8_string_high[] = { 0xed, 0xa0, 0x80 };
TEST_ASSERT (lit_is_valid_utf8_string (utf8_string_high, sizeof (utf8_string_high), true));
/* Isolated low surrogate */
lit_utf8_byte_t utf8_string_low[] = { 0xed, 0xbf, 0xbf };
TEST_ASSERT (lit_is_valid_utf8_string (utf8_string_low, sizeof (utf8_string_low), true));
/* Correct pair of surrogates in strict*/
lit_utf8_byte_t utf8_string_surrogates_strict[] = { 0xed, 0xa0, 0x80, 0xed, 0xbf, 0xbf };
TEST_ASSERT (!lit_is_valid_utf8_string (utf8_string_surrogates_strict, sizeof (utf8_string_surrogates_strict), true));
/* Correct pair of surrogates*/
lit_utf8_byte_t utf8_string_surrogates[] = { 0xed, 0xa0, 0x80, 0xed, 0xbf, 0xbf };
TEST_ASSERT (lit_is_valid_utf8_string (utf8_string_surrogates, sizeof (utf8_string_surrogates), false));
ecma_finalize ();
jmem_finalize ();
return 0;
} /* main */
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