/*
* Generic QObject unit-tests.
*
* Copyright (C) 2017 Red Hat Inc.
*
* This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
* See the COPYING.LIB file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "block/qdict.h"
#include "qapi/error.h"
#include "qapi/qmp/qbool.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qlist.h"
#include "qapi/qmp/qnull.h"
#include "qapi/qmp/qnum.h"
#include "qapi/qmp/qstring.h"
#include "qemu-common.h"
#include <math.h>
/* Marks the end of the test_equality() argument list.
* We cannot use NULL there because that is a valid argument. */
static QObject test_equality_end_of_arguments;
/**
* Test whether all variadic QObject *arguments are equal (@expected
* is true) or whether they are all not equal (@expected is false).
* Every QObject is tested to be equal to itself (to test
* reflexivity), all tests are done both ways (to test symmetry), and
* transitivity is not assumed but checked (each object is compared to
* every other one).
*
* Note that qobject_is_equal() is not really an equivalence relation,
* so this function may not be used for all objects (reflexivity is
* not guaranteed, e.g. in the case of a QNum containing NaN).
*
* The @_ argument is required because a boolean may not be the last
* argument before a variadic argument list (C11 7.16.1.4 para. 4).
*/
static void do_test_equality(bool expected, int _, ...)
{
va_list ap_count, ap_extract;
QObject **args;
int arg_count = 0;
int i, j;
va_start(ap_count, _);
va_copy(ap_extract, ap_count);
while (va_arg(ap_count, QObject *) != &test_equality_end_of_arguments) {
arg_count++;
}
va_end(ap_count);
args = g_new(QObject *, arg_count);
for (i = 0; i < arg_count; i++) {
args[i] = va_arg(ap_extract, QObject *);
}
va_end(ap_extract);
for (i = 0; i < arg_count; i++) {
g_assert(qobject_is_equal(args[i], args[i]) == true);
for (j = i + 1; j < arg_count; j++) {
g_assert(qobject_is_equal(args[i], args[j]) == expected);
}
}
g_free(args);
}
#define check_equal(...) \
do_test_equality(true, 0, __VA_ARGS__, &test_equality_end_of_arguments)
#define check_unequal(...) \
do_test_equality(false, 0, __VA_ARGS__, &test_equality_end_of_arguments)
static void do_free_all(int _, ...)
{
va_list ap;
QObject *obj;
va_start(ap, _);
while ((obj = va_arg(ap, QObject *)) != NULL) {
qobject_unref(obj);
}
va_end(ap);
}
#define free_all(...) \
do_free_all(0, __VA_ARGS__, NULL)
static void qobject_is_equal_null_test(void)
{
check_unequal(qnull(), NULL);
}
static void qobject_is_equal_num_test(void)
{
QNum *u0, *i0, *d0, *dnan, *um42, *im42, *dm42;
u0 = qnum_from_uint(0u);
i0 = qnum_from_int(0);
d0 = qnum_from_double(0.0);
dnan = qnum_from_double(NAN);
um42 = qnum_from_uint((uint64_t)-42);
im42 = qnum_from_int(-42);
dm42 = qnum_from_double(-42.0);
/* Integers representing a mathematically equal number should
* compare equal */
check_equal(u0, i0);
/* Doubles, however, are always unequal to integers */
check_unequal(u0, d0);
check_unequal(i0, d0);
/* Do not assume any object is equal to itself -- note however
* that NaN cannot occur in a JSON object anyway. */
g_assert(qobject_is_equal(QOBJECT(dnan), QOBJECT(dnan)) == false);
/* No unsigned overflow */
check_unequal(um42, im42);
check_unequal(um42, dm42);
check_unequal(im42, dm42);
free_all(u0, i0, d0, dnan, um42, im42, dm42);
}
static void qobject_is_equal_bool_test(void)
{
QBool *btrue_0, *btrue_1, *bfalse_0, *bfalse_1;
btrue_0 = qbool_from_bool(true);
btrue_1 = qbool_from_bool(true);
bfalse_0 = qbool_from_bool(false);
bfalse_1 = qbool_from_bool(false);
check_equal(btrue_0, btrue_1);
check_equal(bfalse_0, bfalse_1);
check_unequal(btrue_0, bfalse_0);
free_all(btrue_0, btrue_1, bfalse_0, bfalse_1);
}
static void qobject_is_equal_string_test(void)
{
QString *str_base, *str_whitespace_0, *str_whitespace_1, *str_whitespace_2;
QString *str_whitespace_3, *str_case, *str_built;
str_base = qstring_from_str("foo");
str_whitespace_0 = qstring_from_str(" foo");
str_whitespace_1 = qstring_from_str("foo ");
str_whitespace_2 = qstring_from_str("foo\b");
str_whitespace_3 = qstring_from_str("fooo\b");
str_case = qstring_from_str("Foo");
/* Should yield "foo" */
str_built = qstring_from_substr("form", 0, 2);
qstring_append_chr(str_built, 'o');
check_unequal(str_base, str_whitespace_0, str_whitespace_1,
str_whitespace_2, str_whitespace_3, str_case);
check_equal(str_base, str_built);
free_all(str_base, str_whitespace_0, str_whitespace_1, str_whitespace_2,
str_whitespace_3, str_case, str_built);
}
static void qobject_is_equal_list_test(void)
{
QList *list_0, *list_1, *list_cloned;
QList *list_reordered, *list_longer, *list_shorter;
list_0 = qlist_new();
list_1 = qlist_new();
list_reordered = qlist_new();
list_longer = qlist_new();
list_shorter = qlist_new();
qlist_append_int(list_0, 1);
qlist_append_int(list_0, 2);
qlist_append_int(list_0, 3);
qlist_append_int(list_1, 1);
qlist_append_int(list_1, 2);
qlist_append_int(list_1, 3);
qlist_append_int(list_reordered, 1);
qlist_append_int(list_reordered, 3);
qlist_append_int(list_reordered, 2);
qlist_append_int(list_longer, 1);
qlist_append_int(list_longer, 2);
qlist_append_int(list_longer, 3);
qlist_append_null(list_longer);
qlist_append_int(list_shorter, 1);
qlist_append_int(list_shorter, 2);
list_cloned = qlist_copy(list_0);
check_equal(list_0, list_1, list_cloned);
check_unequal(list_0, list_reordered, list_longer, list_shorter);
/* With a NaN in it, the list should no longer compare equal to
* itself */
qlist_append(list_0, qnum_from_double(NAN));
g_assert(qobject_is_equal(QOBJECT(list_0), QOBJECT(list_0)) == false);
free_all(list_0, list_1, list_cloned, list_reordered, list_longer,
list_shorter);
}
static void qobject_is_equal_dict_test(void)
{
QDict *dict_0, *dict_1, *dict_cloned;
QDict *dict_different_key, *dict_different_value, *dict_different_null_key;
QDict *dict_longer, *dict_shorter, *dict_nested;
QDict *dict_crumpled;
dict_0 = qdict_new();
dict_1 = qdict_new();
dict_different_key = qdict_new();
dict_different_value = qdict_new();
dict_different_null_key = qdict_new();
dict_longer = qdict_new();
dict_shorter = qdict_new();
dict_nested = qdict_new();
qdict_put_int(dict_0, "f.o", 1);
qdict_put_int(dict_0, "bar", 2);
qdict_put_int(dict_0, "baz", 3);
qdict_put_null(dict_0, "null");
qdict_put_int(dict_1, "f.o", 1);
qdict_put_int(dict_1, "bar", 2);
qdict_put_int(dict_1, "baz", 3);
qdict_put_null(dict_1, "null");
qdict_put_int(dict_different_key, "F.o", 1);
qdict_put_int(dict_different_key, "bar", 2);
qdict_put_int(dict_different_key, "baz", 3);
qdict_put_null(dict_different_key, "null");
qdict_put_int(dict_different_value, "f.o", 42);
qdict_put_int(dict_different_value, "bar", 2);
qdict_put_int(dict_different_value, "baz", 3);
qdict_put_null(dict_different_value, "null");
qdict_put_int(dict_different_null_key, "f.o", 1);
qdict_put_int(dict_different_null_key, "bar", 2);
qdict_put_int(dict_different_null_key, "baz", 3);
qdict_put_null(dict_different_null_key, "none");
qdict_put_int(dict_longer, "f.o", 1);
qdict_put_int(dict_longer, "bar", 2);
qdict_put_int(dict_longer, "baz", 3);
qdict_put_int(dict_longer, "xyz", 4);
qdict_put_null(dict_longer, "null");
qdict_put_int(dict_shorter, "f.o", 1);
qdict_put_int(dict_shorter, "bar", 2);
qdict_put_int(dict_shorter, "baz", 3);
qdict_put(dict_nested, "f", qdict_new());
qdict_put_int(qdict_get_qdict(dict_nested, "f"), "o", 1);
qdict_put_int(dict_nested, "bar", 2);
qdict_put_int(dict_nested, "baz", 3);
qdict_put_null(dict_nested, "null");
dict_cloned = qdict_clone_shallow(dict_0);
check_equal(dict_0, dict_1, dict_cloned);
check_unequal(dict_0, dict_different_key, dict_different_value,
dict_different_null_key, dict_longer, dict_shorter,
dict_nested);
dict_crumpled = qobject_to(QDict, qdict_crumple(dict_1, &error_abort));
check_equal(dict_crumpled, dict_nested);
qdict_flatten(dict_nested);
check_equal(dict_0, dict_nested);
/* Containing an NaN value will make this dict compare unequal to
* itself */
qdict_put(dict_0, "NaN", qnum_from_double(NAN));
g_assert(qobject_is_equal(QOBJECT(dict_0), QOBJECT(dict_0)) == false);
free_all(dict_0, dict_1, dict_cloned, dict_different_key,
dict_different_value, dict_different_null_key, dict_longer,
dict_shorter, dict_nested, dict_crumpled);
}
static void qobject_is_equal_conversion_test(void)
{
QNum *u0, *i0, *d0;
QString *s0, *s_empty;
QBool *bfalse;
u0 = qnum_from_uint(0u);
i0 = qnum_from_int(0);
d0 = qnum_from_double(0.0);
s0 = qstring_from_str("0");
s_empty = qstring_new();
bfalse = qbool_from_bool(false);
/* No automatic type conversion */
check_unequal(u0, s0, s_empty, bfalse, qnull(), NULL);
check_unequal(i0, s0, s_empty, bfalse, qnull(), NULL);
check_unequal(d0, s0, s_empty, bfalse, qnull(), NULL);
free_all(u0, i0, d0, s0, s_empty, bfalse);
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
g_test_add_func("/public/qobject_is_equal_null",
qobject_is_equal_null_test);
g_test_add_func("/public/qobject_is_equal_num", qobject_is_equal_num_test);
g_test_add_func("/public/qobject_is_equal_bool",
qobject_is_equal_bool_test);
g_test_add_func("/public/qobject_is_equal_string",
qobject_is_equal_string_test);
g_test_add_func("/public/qobject_is_equal_list",
qobject_is_equal_list_test);
g_test_add_func("/public/qobject_is_equal_dict",
qobject_is_equal_dict_test);
g_test_add_func("/public/qobject_is_equal_conversion",
qobject_is_equal_conversion_test);
return g_test_run();
}
