test_accel_map_defaults.c

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/*
    This file is part of Ansel,
    Copyright (C) 2026 Aurélien PIERRE.
 
    Ansel is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    Ansel 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 General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with Ansel.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#include <gtk/gtk.h>
 
#include <stdarg.h>
#include <stddef.h>
// cmocka.h declares `extern jmp_buf global_expect_assert_env' at file scope without including
// <setjmp.h> itself. Same suppression as the other tests here, and for the same reason.
#include <setjmp.h>  // NOLINT(misc-include-cleaner)
#include <stdint.h>
#include <cmocka.h>
 
#define APP_DEFAULT_KEY GDK_KEY_F5
 
static void _load_config(const char *contents)
{
  gchar *path = g_build_filename(g_get_tmp_dir(), "ansel-test-keyboardrc", NULL);
  gchar *file = g_strconcat("; test GtkAccelMap rc-file\n", contents, NULL);
  assert_true(g_file_set_contents(path, file, -1, NULL));
  gtk_accel_map_load(path);
  g_free(file);
  g_free(path);
}
 
static guint _register_and_read(const char *path, guint default_key)
{
  gtk_accel_map_add_entry(path, default_key, 0);
  GtkAccelKey key = { 0 };
  assert_true(gtk_accel_map_lookup_entry(path, &key));
  return key.accel_key;
}
 
static void _an_absent_path_takes_the_app_default(void **state)
{
  (void)state;
  _load_config("(gtk_accel_path \"<AnselTest1>/known\" \"F1\")\n");
  assert_int_equal(_register_and_read("<AnselTest1>/absent", APP_DEFAULT_KEY), APP_DEFAULT_KEY);
}
 
static void _an_emptied_entry_stays_cleared(void **state)
{
  (void)state;
  _load_config("(gtk_accel_path \"<AnselTest2>/cleared\" \"\")\n");
  assert_int_equal(_register_and_read("<AnselTest2>/cleared", APP_DEFAULT_KEY), 0);
}
 
static void _a_user_binding_wins_over_the_default(void **state)
{
  (void)state;
  _load_config("(gtk_accel_path \"<AnselTest3>/rebound\" \"<Control>k\")\n");
  gtk_accel_map_add_entry("<AnselTest3>/rebound", APP_DEFAULT_KEY, 0);
  GtkAccelKey key = { 0 };
  assert_true(gtk_accel_map_lookup_entry("<AnselTest3>/rebound", &key));
  assert_int_equal(key.accel_key, GDK_KEY_k);
  assert_int_equal(key.accel_mods & GDK_CONTROL_MASK, GDK_CONTROL_MASK);
}
 
static void _a_zero_default_cannot_tell_absent_from_cleared(void **state)
{
  (void)state;
  _load_config("(gtk_accel_path \"<AnselTest4>/cleared\" \"\")\n");
  assert_int_equal(_register_and_read("<AnselTest4>/cleared", 0), 0);
  assert_int_equal(_register_and_read("<AnselTest4>/absent", 0), 0);
}
 
static void _saving_marks_defaults_as_comments_and_changes_as_lines(void **state)
{
  (void)state;
  gtk_accel_map_add_entry("<AnselTest5>/default", APP_DEFAULT_KEY, 0);
  gtk_accel_map_add_entry("<AnselTest5>/cleared", APP_DEFAULT_KEY, 0);
  assert_true(gtk_accel_map_change_entry("<AnselTest5>/cleared", 0, 0, TRUE));
 
  gchar *path = g_build_filename(g_get_tmp_dir(), "ansel-test-keyboardrc-save", NULL);
  gtk_accel_map_save(path);
 
  gchar *contents = NULL;
  assert_true(g_file_get_contents(path, &contents, NULL, NULL));
  assert_non_null(g_strstr_len(contents, -1, "; (gtk_accel_path \"<AnselTest5>/default\" \"F5\")"));
  assert_non_null(g_strstr_len(contents, -1, "\n(gtk_accel_path \"<AnselTest5>/cleared\" \"\")"));
  g_free(contents);
  g_free(path);
}
 
int main(void)
{
  // The accel map is a plain hash table populated by gtk_init(), and unreachable without it.
  // The result is deliberately ignored: a headless runner opens no display and answers FALSE,
  // having initialised everything these tests touch anyway.
  int argc = 0;
  char **argv = NULL;
  gtk_init_check(&argc, &argv);
 
  const struct CMUnitTest tests[] = {
    cmocka_unit_test(_an_absent_path_takes_the_app_default),
    cmocka_unit_test(_an_emptied_entry_stays_cleared),
    cmocka_unit_test(_a_user_binding_wins_over_the_default),
    cmocka_unit_test(_a_zero_default_cannot_tell_absent_from_cleared),
    cmocka_unit_test(_saving_marks_defaults_as_comments_and_changes_as_lines),
  };
 
  return cmocka_run_group_tests(tests, NULL, NULL);
}
 
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