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Learning_GTK4_tree/testsuite/gsk/node-parser.c

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/*
* Copyright (C) 2011 Red Hat Inc.
*
* Author:
* Benjamin Otte <otte@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gtk/gtk.h>
static char *
test_get_reference_file (const char *node_file)
{
GString *file = g_string_new (NULL);
if (g_str_has_suffix (node_file, ".node"))
g_string_append_len (file, node_file, strlen (node_file) - 5);
else
g_string_append (file, node_file);
g_string_append (file, ".ref.node");
if (!g_file_test (file->str, G_FILE_TEST_EXISTS))
{
g_string_free (file, TRUE);
return g_strdup (node_file);
}
return g_string_free (file, FALSE);
}
static char *
test_get_errors_file (const char *node_file)
{
GString *file = g_string_new (NULL);
if (g_str_has_suffix (node_file, ".node"))
g_string_append_len (file, node_file, strlen (node_file) - 5);
else
g_string_append (file, node_file);
g_string_append (file, ".errors");
if (!g_file_test (file->str, G_FILE_TEST_EXISTS))
{
g_string_free (file, TRUE);
return NULL;
}
return g_string_free (file, FALSE);
}
static GBytes *
diff_with_file (const char *file1,
GBytes *input,
GError **error)
{
GSubprocess *process;
GBytes *output;
process = g_subprocess_new (G_SUBPROCESS_FLAGS_STDIN_PIPE
| G_SUBPROCESS_FLAGS_STDOUT_PIPE,
error,
"diff", "-u", file1, "-", NULL);
if (process == NULL)
return NULL;
if (!g_subprocess_communicate (process,
input,
NULL,
&output,
NULL,
error))
{
g_object_unref (process);
return NULL;
}
if (!g_subprocess_get_successful (process) &&
/* this is the condition when the files differ */
!(g_subprocess_get_if_exited (process) && g_subprocess_get_exit_status (process) == 1))
{
g_clear_pointer (&output, g_bytes_unref);
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"The `diff' process exited with error status %d",
g_subprocess_get_exit_status (process));
}
g_object_unref (process);
return output;
}
static void
append_error_value (GString *string,
GType enum_type,
guint value)
{
GEnumClass *enum_class;
GEnumValue *enum_value;
enum_class = g_type_class_ref (enum_type);
enum_value = g_enum_get_value (enum_class, value);
g_string_append (string, enum_value->value_name);
g_type_class_unref (enum_class);
}
static void
deserialize_error_func (const GskParseLocation *start,
const GskParseLocation *end,
const GError *error,
gpointer user_data)
{
GString *errors = user_data;
GString *string = g_string_new ("<data>");
g_string_append_printf (string, ":%zu:%zu",
start->lines + 1, start->line_chars + 1);
if (start->lines != end->lines || start->line_chars != end->line_chars)
{
g_string_append (string, "-");
if (start->lines != end->lines)
g_string_append_printf (string, "%zu:", end->lines + 1);
g_string_append_printf (string, "%zu", end->line_chars + 1);
}
g_string_append_printf (errors, "%s: error: ", string->str);
g_string_free (string, TRUE);
if (error->domain == GTK_CSS_PARSER_ERROR)
append_error_value (errors, GTK_TYPE_CSS_PARSER_ERROR, error->code);
else if (error->domain == GTK_CSS_PARSER_WARNING)
append_error_value (errors, GTK_TYPE_CSS_PARSER_WARNING, error->code);
else
g_string_append_printf (errors,
"%s %u\n",
g_quark_to_string (error->domain),
error->code);
g_string_append_c (errors, '\n');
}
static gboolean
parse_node_file (GFile *file, gboolean generate)
{
char *node_file, *reference_file, *errors_file;
GskRenderNode *node;
GString *errors;
GBytes *diff, *bytes;
GError *error = NULL;
gboolean result = TRUE;
bytes = g_file_load_bytes (file, NULL, NULL, &error);
if (error)
{
g_print ("Error loading file: %s\n", error->message);
g_clear_error (&error);
return FALSE;
}
g_assert_nonnull (bytes);
errors = g_string_new ("");
node = gsk_render_node_deserialize (bytes, deserialize_error_func, errors);
g_bytes_unref (bytes);
bytes = gsk_render_node_serialize (node);
gsk_render_node_unref (node);
if (generate)
{
g_print ("%s", (char *) g_bytes_get_data (bytes, NULL));
g_bytes_unref (bytes);
g_string_free (errors, TRUE);
return TRUE;
}
node_file = g_file_get_path (file);
reference_file = test_get_reference_file (node_file);
diff = diff_with_file (reference_file, bytes, &error);
g_assert_no_error (error);
if (diff && g_bytes_get_size (diff) > 0)
{
g_print ("Resulting file doesn't match reference:\n%s\n",
(const char *) g_bytes_get_data (diff, NULL));
result = FALSE;
}
g_free (reference_file);
g_clear_pointer (&diff, g_bytes_unref);
errors_file = test_get_errors_file (node_file);
if (errors_file)
{
GBytes *error_bytes = g_string_free_to_bytes (errors);
diff = diff_with_file (errors_file, error_bytes, &error);
g_assert_no_error (error);
if (diff && g_bytes_get_size (diff) > 0)
{
g_print ("Errors don't match expected errors:\n%s\n",
(const char *) g_bytes_get_data (diff, NULL));
result = FALSE;
}
g_clear_pointer (&diff, g_bytes_unref);
g_clear_pointer (&error_bytes, g_bytes_unref);
}
else if (errors->str[0])
{
g_print ("Unexpected errors:\n%s\n", errors->str);
result = FALSE;
g_string_free (errors, TRUE);
}
else
{
g_string_free (errors, TRUE);
}
g_free (errors_file);
g_free (node_file);
g_bytes_unref (bytes);
return result;
}
static gboolean
test_file (GFile *file)
{
return parse_node_file (file, FALSE);
}
static int
compare_files (gconstpointer a, gconstpointer b)
{
GFile *file1 = G_FILE (a);
GFile *file2 = G_FILE (b);
char *path1, *path2;
int result;
path1 = g_file_get_path (file1);
path2 = g_file_get_path (file2);
result = strcmp (path1, path2);
g_free (path1);
g_free (path2);
return result;
}
static gboolean
test_files_in_directory (GFile *dir)
{
GFileEnumerator *enumerator;
GFileInfo *info;
GList *l, *files;
GError *error = NULL;
gboolean result = TRUE;
enumerator = g_file_enumerate_children (dir, G_FILE_ATTRIBUTE_STANDARD_NAME, 0, NULL, &error);
g_assert_no_error (error);
files = NULL;
while ((info = g_file_enumerator_next_file (enumerator, NULL, &error)))
{
const char *filename;
filename = g_file_info_get_name (info);
if (!g_str_has_suffix (filename, ".node") ||
g_str_has_suffix (filename, ".out.node") ||
g_str_has_suffix (filename, ".ref.node"))
{
g_object_unref (info);
continue;
}
files = g_list_prepend (files, g_file_get_child (dir, filename));
g_object_unref (info);
}
g_assert_no_error (error);
g_object_unref (enumerator);
files = g_list_sort (files, compare_files);
for (l = files; l; l = l->next)
{
result &= test_file (l->data);
}
g_list_free_full (files, g_object_unref);
return result;
}
int
main (int argc, char **argv)
{
gboolean success;
if (argc < 2)
{
const char *basedir;
GFile *dir;
gtk_test_init (&argc, &argv);
basedir = g_test_get_dir (G_TEST_DIST);
dir = g_file_new_for_path (basedir);
success = test_files_in_directory (dir);
g_object_unref (dir);
}
else if (strcmp (argv[1], "--generate") == 0)
{
if (argc >= 3)
{
GFile *file = g_file_new_for_commandline_arg (argv[2]);
gtk_init ();
success = parse_node_file (file, TRUE);
g_object_unref (file);
}
else
success = FALSE;
}
else
{
guint i;
gtk_test_init (&argc, &argv);
success = TRUE;
for (i = 1; i < argc; i++)
{
GFile *file = g_file_new_for_commandline_arg (argv[i]);
success &= test_file (file);
g_object_unref (file);
}
}
return success ? 0 : 1;
}
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