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gtk/testsuite/gsk/node-parser.c
Benjamin Otte 93cf76b068 testsuite: Improve diff_with_file() function 
Properly handle diff(1) failing.

In this particular case, the test passed a NULL input file to the diff
(that was fixed, too) and then diff only found one input file and
aborted.

But without this fix, we'd also not catch other abortion reasons for
diff() - as long as it exited in any way, we were happy.
2020-01-28 02:17:03 +01:00

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8.6 KiB
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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 GtkCssSection *section,
const GError *error,
gpointer user_data)
{
GString *errors = user_data;
char *section_string;
section_string = gtk_css_section_to_string (section);
g_string_append_printf (errors,
"%s: error: ",
section_string);
g_free (section_string);
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 (bytes != NULL);
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;
gtk_test_init (&argc, &argv);
if (argc < 2)
{
const char *basedir;
GFile *dir;
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]);
success = parse_node_file (file, TRUE);
g_object_unref (file);
}
else
success = FALSE;
}
else
{
guint i;
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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