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glib/glib/tests/scannerapi.c
Philip Withnall 198285bda8 tests: Add missing unistd.h include to scannerapi.c
This should fix compile errors on macOS, which couldn’t find the
`write()`, `lseek()`, etc. functions added in commit
020e58bac5.

Signed-off-by: Philip Withnall <pwithnall@gnome.org>
2025-04-04 13:41:39 +01:00

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/* Gtk+ object tests
* Copyright (C) 2007 Patrick Hulin
* Copyright (C) 2007 Imendio AB
* Authors: Tim Janik
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <glib.h>
#include <glib/gstdio.h>
#include <string.h>
#include <stdlib.h>
#ifdef G_OS_WIN32
#include <io.h>
#else
#include <unistd.h>
#endif
/* GScanner fixture */
typedef struct {
GScanner *scanner;
} ScannerFixture;
static void
scanner_fixture_setup (ScannerFixture *fix,
gconstpointer test_data)
{
fix->scanner = g_scanner_new (NULL);
g_assert (fix->scanner != NULL);
}
static void
scanner_fixture_teardown (ScannerFixture *fix,
gconstpointer test_data)
{
g_assert (fix->scanner != NULL);
g_scanner_destroy (fix->scanner);
}
static void
scanner_msg_func (GScanner *scanner,
gchar *message,
gboolean error)
{
g_assert_cmpstr (message, ==, "test");
}
static void
test_scanner_warn (ScannerFixture *fix,
gconstpointer test_data)
{
fix->scanner->msg_handler = scanner_msg_func;
g_scanner_warn (fix->scanner, "test");
}
static void
test_scanner_error (ScannerFixture *fix,
gconstpointer test_data)
{
if (g_test_subprocess ())
{
int pe = fix->scanner->parse_errors;
g_scanner_error (fix->scanner, "scanner-error-message-test");
g_assert_cmpint (fix->scanner->parse_errors, ==, pe + 1);
exit (0);
}
g_test_trap_subprocess (NULL, 0, G_TEST_SUBPROCESS_DEFAULT);
g_test_trap_assert_passed ();
g_test_trap_assert_stderr ("*scanner-error-message-test*");
}
static void
check_keys (gpointer key,
gpointer value,
gpointer user_data)
{
g_assert_cmpint (GPOINTER_TO_INT (value), ==, g_ascii_strtoull (key, NULL, 0));
}
static void
test_scanner_symbols (ScannerFixture *fix,
gconstpointer test_data)
{
gint i;
gchar buf[2];
g_scanner_set_scope (fix->scanner, 1);
for (i = 0; i < 10; i++)
g_scanner_scope_add_symbol (fix->scanner,
1,
g_ascii_dtostr (buf, 2, (gdouble)i),
GINT_TO_POINTER (i));
g_scanner_scope_foreach_symbol (fix->scanner, 1, check_keys, NULL);
g_assert_cmpint (GPOINTER_TO_INT (g_scanner_lookup_symbol (fix->scanner, "5")), ==, 5);
g_scanner_scope_remove_symbol (fix->scanner, 1, "5");
g_assert (g_scanner_lookup_symbol (fix->scanner, "5") == NULL);
g_assert_cmpint (GPOINTER_TO_INT (g_scanner_scope_lookup_symbol (fix->scanner, 1, "4")), ==, 4);
g_assert_cmpint (GPOINTER_TO_INT (g_scanner_scope_lookup_symbol (fix->scanner, 1, "5")), ==, 0);
}
static void
test_scanner_tokens (ScannerFixture *fix,
gconstpointer test_data)
{
gchar buf[] = "(\t\n\r\\){}";
const size_t buflen = strlen (buf);
gchar tokbuf[] = "(\\){}";
const gsize tokbuflen = strlen (tokbuf);
gsize i;
g_scanner_input_text (fix->scanner, buf, buflen);
g_assert_cmpint (g_scanner_cur_token (fix->scanner), ==, G_TOKEN_NONE);
g_scanner_get_next_token (fix->scanner);
g_assert_cmpint (g_scanner_cur_token (fix->scanner), ==, tokbuf[0]);
g_assert_cmpint (g_scanner_cur_line (fix->scanner), ==, 1);
for (i = 1; i < tokbuflen; i++)
g_assert_cmpint (g_scanner_get_next_token (fix->scanner), ==, tokbuf[i]);
g_assert_cmpint (g_scanner_get_next_token (fix->scanner), ==, G_TOKEN_EOF);
return;
}
static void
test_scanner_multiline_comment (void)
{
GScanner *scanner = NULL;
const char buf[] = "/** this\n * is\n * multilined */";
const size_t buflen = strlen (buf);
scanner = g_scanner_new (NULL);
scanner->config->skip_comment_multi = FALSE;
g_scanner_input_text (scanner, buf, buflen);
g_assert_cmpint (g_scanner_cur_token (scanner), ==, G_TOKEN_NONE);
g_scanner_get_next_token (scanner);
g_assert_cmpint (g_scanner_cur_token (scanner), ==, G_TOKEN_COMMENT_MULTI);
g_assert_cmpint (g_scanner_cur_line (scanner), ==, 3);
g_assert_cmpstr (g_scanner_cur_value (scanner).v_comment, ==, "* this\n * is\n * multilined ");
g_assert_cmpint (g_scanner_get_next_token (scanner), ==, G_TOKEN_EOF);
g_scanner_destroy (scanner);
}
static void
test_scanner_int_to_float (void)
{
GScanner *scanner = NULL;
const char buf[] = "4294967295";
const size_t buflen = strlen (buf);
scanner = g_scanner_new (NULL);
scanner->config->int_2_float = TRUE;
g_scanner_input_text (scanner, buf, buflen);
g_assert_cmpint (g_scanner_cur_token (scanner), ==, G_TOKEN_NONE);
g_scanner_get_next_token (scanner);
g_assert_cmpint (g_scanner_cur_token (scanner), ==, G_TOKEN_FLOAT);
g_assert_cmpint (g_scanner_cur_line (scanner), ==, 1);
g_assert_cmpfloat (g_scanner_cur_value (scanner).v_float, ==, 4294967295.0);
g_assert_cmpint (g_scanner_get_next_token (scanner), ==, G_TOKEN_EOF);
g_scanner_destroy (scanner);
}
static void
test_scanner_fd_input (void)
{
/* GScanner does some internal buffering when reading from an FD, reading in
* chunks of `READ_BUFFER_SIZE` (currently 4000B) to an internal buffer. The
* parsing codepaths differ significantly depending on whether theres data in
* the buffer, so all parsing operations have to be tested with chunk
* boundaries on each of the characters in that operation.
*
* Do that by prefixing the buffer were testing with a variable amount of
* whitespace. Whitespace is (by default) ignored by the scanner, so wont
* affect the test other than by letting us choose where in the test string
* the chunk boundaries fall. */
const size_t whitespace_lens[] = { 0, 3998, 3999, 4000, 4001 };
for (size_t i = 0; i < G_N_ELEMENTS (whitespace_lens); i++)
{
GScanner *scanner = NULL;
char *filename = NULL;
int fd = -1;
char *buf = NULL;
const size_t whitespace_len = whitespace_lens[i];
size_t buflen;
const char *buf_suffix = "/** this\n * is\n * multilined */";
buflen = whitespace_len + strlen (buf_suffix) + 1;
buf = g_malloc (buflen);
memset (buf, ' ', whitespace_len);
memcpy (buf + whitespace_len, buf_suffix, strlen (buf_suffix));
buf[buflen - 1] = '\0';
scanner = g_scanner_new (NULL);
scanner->config->skip_comment_multi = FALSE;
filename = g_strdup ("scanner-fd-input-XXXXXX");
fd = g_mkstemp (filename);
g_assert_cmpint (fd, >=, 0);
g_assert_cmpint (write (fd, buf, buflen), ==, buflen);
g_assert_no_errno (lseek (fd, 0, SEEK_SET));
g_scanner_input_file (scanner, fd);
g_assert_cmpint (g_scanner_cur_token (scanner), ==, G_TOKEN_NONE);
g_scanner_get_next_token (scanner);
g_assert_cmpint (g_scanner_cur_token (scanner), ==, G_TOKEN_COMMENT_MULTI);
g_assert_cmpint (g_scanner_cur_line (scanner), ==, 3);
g_assert_cmpstr (g_scanner_cur_value (scanner).v_comment, ==, "* this\n * is\n * multilined ");
g_assert_cmpint (g_scanner_get_next_token (scanner), ==, G_TOKEN_EOF);
g_close (fd, NULL);
g_free (filename);
g_free (buf);
g_scanner_destroy (scanner);
}
}
static void
test_scanner_fd_input_rewind (void)
{
/* GScanner does some internal buffering when reading from an FD, reading in
* chunks of `READ_BUFFER_SIZE` (currently 4000B) to an internal buffer. It
* allows the input FDs file offset to be positioned to match the current
* parsing position. Test that works. */
GScanner *scanner = NULL;
char *filename = NULL;
int fd = -1;
char *buf = NULL;
const size_t whitespace_len = 4000;
size_t buflen;
const char *buf_suffix = "({})";
const struct
{
GTokenType expected_token;
off_t expected_offset; /* offset after consuming @expected_token */
}
tokens_and_offsets[] =
{
{ G_TOKEN_LEFT_PAREN, whitespace_len + 1 },
{ G_TOKEN_LEFT_CURLY, whitespace_len + 2 },
{ G_TOKEN_RIGHT_CURLY, whitespace_len + 3 },
{ G_TOKEN_RIGHT_PAREN, whitespace_len + 4 },
};
buflen = whitespace_len + strlen (buf_suffix) + 1;
buf = g_malloc (buflen);
memset (buf, ' ', whitespace_len);
memcpy (buf + whitespace_len, buf_suffix, strlen (buf_suffix));
buf[buflen - 1] = '\0';
scanner = g_scanner_new (NULL);
filename = g_strdup ("scanner-fd-input-XXXXXX");
fd = g_mkstemp (filename);
g_assert_cmpint (fd, >=, 0);
g_assert_cmpint (write (fd, buf, buflen), ==, buflen);
g_assert_no_errno (lseek (fd, 0, SEEK_SET));
g_scanner_input_file (scanner, fd);
g_assert_cmpint (g_scanner_cur_token (scanner), ==, G_TOKEN_NONE);
for (size_t i = 0; i < G_N_ELEMENTS (tokens_and_offsets); i++)
{
g_scanner_get_next_token (scanner);
g_scanner_sync_file_offset (scanner);
g_assert_cmpint (g_scanner_cur_token (scanner), ==, tokens_and_offsets[i].expected_token);
g_assert_cmpint (lseek (fd, 0, SEEK_CUR), ==, tokens_and_offsets[i].expected_offset);
}
g_assert_cmpint (g_scanner_get_next_token (scanner), ==, G_TOKEN_EOF);
g_close (fd, NULL);
g_free (filename);
g_free (buf);
g_scanner_destroy (scanner);
}
int
main (int argc,
char *argv[])
{
g_test_init (&argc, &argv, NULL);
g_test_add ("/scanner/warn", ScannerFixture, 0, scanner_fixture_setup, test_scanner_warn, scanner_fixture_teardown);
g_test_add ("/scanner/error", ScannerFixture, 0, scanner_fixture_setup, test_scanner_error, scanner_fixture_teardown);
g_test_add ("/scanner/symbols", ScannerFixture, 0, scanner_fixture_setup, test_scanner_symbols, scanner_fixture_teardown);
g_test_add ("/scanner/tokens", ScannerFixture, 0, scanner_fixture_setup, test_scanner_tokens, scanner_fixture_teardown);
g_test_add_func ("/scanner/multiline-comment", test_scanner_multiline_comment);
g_test_add_func ("/scanner/int-to-float", test_scanner_int_to_float);
g_test_add_func ("/scanner/fd-input", test_scanner_fd_input);
g_test_add_func ("/scanner/fd-input/rewind", test_scanner_fd_input_rewind);
return g_test_run();
}