diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/break-loader.c | 61 |
1 files changed, 56 insertions, 5 deletions
diff --git a/test/break-loader.c b/test/break-loader.c index e2ce6819..1ddaec40 100644 --- a/test/break-loader.c +++ b/test/break-loader.c @@ -347,10 +347,12 @@ randomly_set_extreme_ints (const DBusString *orig_data, _DBUS_UINT_MAX - 1, _DBUS_INT_MAX - 2, _DBUS_UINT_MAX - 2, - (unsigned int) (_DBUS_INT_MAX + 1), - (unsigned int) (_DBUS_UINT_MAX + 1), - _DBUS_INT_MAX + 2, - _DBUS_UINT_MAX + 2, + _DBUS_INT_MAX - 17, + _DBUS_UINT_MAX - 17, + _DBUS_INT_MAX / 2, + _DBUS_INT_MAX / 3, + _DBUS_UINT_MAX / 2, + _DBUS_UINT_MAX / 3, 0, 1, 2, 3, (unsigned int) -1, (unsigned int) -2, @@ -390,6 +392,45 @@ randomly_set_extreme_ints (const DBusString *orig_data, extreme_ints[which]); } +static void +randomly_change_one_type (const DBusString *orig_data, + DBusString *mutated) +{ + int i; + int len; + + if (orig_data != mutated) + { + _dbus_string_set_length (mutated, 0); + + if (!_dbus_string_copy (orig_data, 0, mutated, 0)) + _dbus_assert_not_reached ("out of mem"); + } + + if (_dbus_string_get_length (mutated) == 0) + return; + + len = _dbus_string_get_length (mutated); + i = random_int_in_range (0, len); + + /* Look for a type starting at a random location, + * and replace with a different type + */ + while (i < len) + { + int b; + b = _dbus_string_get_byte (mutated, i); + if (b > DBUS_TYPE_INVALID && b <= DBUS_TYPE_LAST) + { + _dbus_string_set_byte (mutated, i, + random_int_in_range (DBUS_TYPE_INVALID, + DBUS_TYPE_LAST + 1)); + return; + } + ++i; + } +} + static int times_we_did_each_thing[6] = { 0, }; static void @@ -406,7 +447,8 @@ randomly_do_n_things (const DBusString *orig_data, randomly_add_one_byte, randomly_remove_one_byte, randomly_modify_length, - randomly_set_extreme_ints + randomly_set_extreme_ints, + randomly_change_one_type }; _dbus_string_set_length (mutated, 0); @@ -501,6 +543,15 @@ find_breaks_based_on (const DBusString *filename, ++i; } + + i = 0; + while (i < 50) + { + randomly_change_one_type (&orig_data, &mutated); + try_mutated_data (&mutated); + + ++i; + } i = 0; while (i < 15) |