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qemu/tests/test-qemu-opts.c
Paolo Bonzini 32c02fdda4 qemu-option: restrict qemu_opts_set to merge-lists QemuOpts 
qemu_opts_set is used to create default network backends and to
parse sugar options -kernel, -initrd, -append, -bios and -dtb.
These are very different uses:

I would *expect* a function named qemu_opts_set to set an option in a
merge-lists QemuOptsList, such as -kernel, and possibly to set an option
in a non-merge-lists QemuOptsList with non-NULL id, similar to -set.

However, it wouldn't *work* to use qemu_opts_set for the latter
because qemu_opts_set uses fail_if_exists==1. So, for non-merge-lists
QemuOptsList and non-NULL id, the semantics of qemu_opts_set (fail if the
(QemuOptsList, id) pair already exists) are debatable.

On the other hand, I would not expect qemu_opts_set to create a
non-merge-lists QemuOpts with a single option; which it does, though.
For this case of non-merge-lists QemuOptsList and NULL id, qemu_opts_set
hardly adds value over qemu_opts_parse.  It does skip some parsing and
unescaping, but that's not needed when creating default network
backends.

So qemu_opts_set has warty behavior for non-merge-lists QemuOptsList
if id is non-NULL, and it's mostly pointless if id is NULL.  My
solution to keeping the API as simple as possible is to limit
qemu_opts_set to merge-lists QemuOptsList.  For them, it's useful (we
don't want comma-unescaping for -kernel) *and* has sane semantics.
Network backend creation is switched to qemu_opts_parse.

qemu_opts_set is now only used on merge-lists QemuOptsList... except
in the testcase, which is changed to use a merge-list QemuOptsList.

With this change we can also remove the id parameter.  With the
parameter always NULL, we know that qemu_opts_create cannot fail
and can pass &error_abort to it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-10 12:15:12 -05:00

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/*
* QemuOpts unit-tests.
*
* Copyright (C) 2014 Leandro Dorileo <l@dorileo.org>
*
* 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 "qemu/units.h"
#include "qemu/option.h"
#include "qemu/option_int.h"
#include "qapi/error.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qstring.h"
#include "qemu/config-file.h"
static QemuOptsList opts_list_01 = {
.name = "opts_list_01",
.head = QTAILQ_HEAD_INITIALIZER(opts_list_01.head),
.desc = {
{
.name = "str1",
.type = QEMU_OPT_STRING,
.help = "Help texts are preserved in qemu_opts_append",
.def_value_str = "default",
},{
.name = "str2",
.type = QEMU_OPT_STRING,
},{
.name = "str3",
.type = QEMU_OPT_STRING,
},{
.name = "number1",
.type = QEMU_OPT_NUMBER,
.help = "Having help texts only for some options is okay",
},{
.name = "number2",
.type = QEMU_OPT_NUMBER,
},
{ /* end of list */ }
},
};
static QemuOptsList opts_list_02 = {
.name = "opts_list_02",
.head = QTAILQ_HEAD_INITIALIZER(opts_list_02.head),
.desc = {
{
.name = "str1",
.type = QEMU_OPT_STRING,
},{
.name = "str2",
.type = QEMU_OPT_STRING,
},{
.name = "bool1",
.type = QEMU_OPT_BOOL,
},{
.name = "bool2",
.type = QEMU_OPT_BOOL,
},{
.name = "size1",
.type = QEMU_OPT_SIZE,
},{
.name = "size2",
.type = QEMU_OPT_SIZE,
},{
.name = "size3",
.type = QEMU_OPT_SIZE,
},
{ /* end of list */ }
},
};
static QemuOptsList opts_list_03 = {
.name = "opts_list_03",
.implied_opt_name = "implied",
.head = QTAILQ_HEAD_INITIALIZER(opts_list_03.head),
.desc = {
/* no elements => accept any params */
{ /* end of list */ }
},
};
static QemuOptsList opts_list_04 = {
.name = "opts_list_04",
.head = QTAILQ_HEAD_INITIALIZER(opts_list_04.head),
.merge_lists = true,
.desc = {
{
.name = "str3",
.type = QEMU_OPT_STRING,
},
{ /* end of list */ }
},
};
static void register_opts(void)
{
qemu_add_opts(&opts_list_01);
qemu_add_opts(&opts_list_02);
qemu_add_opts(&opts_list_03);
qemu_add_opts(&opts_list_04);
}
static void test_find_unknown_opts(void)
{
QemuOptsList *list;
Error *err = NULL;
/* should not return anything, we don't have an "unknown" option */
list = qemu_find_opts_err("unknown", &err);
g_assert(list == NULL);
error_free_or_abort(&err);
}
static void test_qemu_find_opts(void)
{
QemuOptsList *list;
/* we have an "opts_list_01" option, should return it */
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert_cmpstr(list->name, ==, "opts_list_01");
}
static void test_qemu_opts_create(void)
{
QemuOptsList *list;
QemuOpts *opts;
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_01");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* now we've create the opts, must find it */
opts = qemu_opts_find(list, NULL);
g_assert(opts != NULL);
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opt_get(void)
{
QemuOptsList *list;
QemuOpts *opts;
const char *opt = NULL;
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_01");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* haven't set anything to str2 yet */
opt = qemu_opt_get(opts, "str2");
g_assert(opt == NULL);
qemu_opt_set(opts, "str2", "value", &error_abort);
/* now we have set str2, should know about it */
opt = qemu_opt_get(opts, "str2");
g_assert_cmpstr(opt, ==, "value");
qemu_opt_set(opts, "str2", "value2", &error_abort);
/* having reset the value, the returned should be the reset one */
opt = qemu_opt_get(opts, "str2");
g_assert_cmpstr(opt, ==, "value2");
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opt_get_bool(void)
{
QemuOptsList *list;
QemuOpts *opts;
bool opt;
list = qemu_find_opts("opts_list_02");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_02");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* haven't set anything to bool1 yet, so defval should be returned */
opt = qemu_opt_get_bool(opts, "bool1", false);
g_assert(opt == false);
qemu_opt_set_bool(opts, "bool1", true, &error_abort);
/* now we have set bool1, should know about it */
opt = qemu_opt_get_bool(opts, "bool1", false);
g_assert(opt == true);
/* having reset the value, opt should be the reset one not defval */
qemu_opt_set_bool(opts, "bool1", false, &error_abort);
opt = qemu_opt_get_bool(opts, "bool1", true);
g_assert(opt == false);
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opt_get_number(void)
{
QemuOptsList *list;
QemuOpts *opts;
uint64_t opt;
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_01");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* haven't set anything to number1 yet, so defval should be returned */
opt = qemu_opt_get_number(opts, "number1", 5);
g_assert(opt == 5);
qemu_opt_set_number(opts, "number1", 10, &error_abort);
/* now we have set number1, should know about it */
opt = qemu_opt_get_number(opts, "number1", 5);
g_assert(opt == 10);
/* having reset it, the returned should be the reset one not defval */
qemu_opt_set_number(opts, "number1", 15, &error_abort);
opt = qemu_opt_get_number(opts, "number1", 5);
g_assert(opt == 15);
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opt_get_size(void)
{
QemuOptsList *list;
QemuOpts *opts;
uint64_t opt;
QDict *dict;
list = qemu_find_opts("opts_list_02");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_02");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* haven't set anything to size1 yet, so defval should be returned */
opt = qemu_opt_get_size(opts, "size1", 5);
g_assert(opt == 5);
dict = qdict_new();
g_assert(dict != NULL);
qdict_put_str(dict, "size1", "10");
qemu_opts_absorb_qdict(opts, dict, &error_abort);
g_assert(error_abort == NULL);
/* now we have set size1, should know about it */
opt = qemu_opt_get_size(opts, "size1", 5);
g_assert(opt == 10);
/* reset value */
qdict_put_str(dict, "size1", "15");
qemu_opts_absorb_qdict(opts, dict, &error_abort);
g_assert(error_abort == NULL);
/* test the reset value */
opt = qemu_opt_get_size(opts, "size1", 5);
g_assert(opt == 15);
qdict_del(dict, "size1");
g_free(dict);
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opt_unset(void)
{
QemuOpts *opts;
const char *value;
int ret;
/* dynamically initialized (parsed) opts */
opts = qemu_opts_parse(&opts_list_03, "key=value", false, NULL);
g_assert(opts != NULL);
/* check default/parsed value */
value = qemu_opt_get(opts, "key");
g_assert_cmpstr(value, ==, "value");
/* reset it to value2 */
qemu_opt_set(opts, "key", "value2", &error_abort);
value = qemu_opt_get(opts, "key");
g_assert_cmpstr(value, ==, "value2");
/* unset, valid only for "accept any" */
ret = qemu_opt_unset(opts, "key");
g_assert(ret == 0);
/* after reset the value should be the parsed/default one */
value = qemu_opt_get(opts, "key");
g_assert_cmpstr(value, ==, "value");
qemu_opts_del(opts);
}
static void test_qemu_opts_reset(void)
{
QemuOptsList *list;
QemuOpts *opts;
uint64_t opt;
list = qemu_find_opts("opts_list_01");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_01");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* create the opts */
opts = qemu_opts_create(list, NULL, 0, &error_abort);
g_assert(opts != NULL);
g_assert(!QTAILQ_EMPTY(&list->head));
/* haven't set anything to number1 yet, so defval should be returned */
opt = qemu_opt_get_number(opts, "number1", 5);
g_assert(opt == 5);
qemu_opt_set_number(opts, "number1", 10, &error_abort);
/* now we have set number1, should know about it */
opt = qemu_opt_get_number(opts, "number1", 5);
g_assert(opt == 10);
qemu_opts_reset(list);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static void test_qemu_opts_set(void)
{
QemuOptsList *list;
QemuOpts *opts;
const char *opt;
list = qemu_find_opts("opts_list_04");
g_assert(list != NULL);
g_assert(QTAILQ_EMPTY(&list->head));
g_assert_cmpstr(list->name, ==, "opts_list_04");
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
/* implicitly create opts and set str3 value */
qemu_opts_set(list, "str3", "value", &error_abort);
g_assert(!QTAILQ_EMPTY(&list->head));
/* get the just created opts */
opts = qemu_opts_find(list, NULL);
g_assert(opts != NULL);
/* check the str3 value */
opt = qemu_opt_get(opts, "str3");
g_assert_cmpstr(opt, ==, "value");
qemu_opts_del(opts);
/* should not find anything at this point */
opts = qemu_opts_find(list, NULL);
g_assert(opts == NULL);
}
static int opts_count_iter(void *opaque, const char *name, const char *value,
Error **errp)
{
(*(size_t *)opaque)++;
return 0;
}
static size_t opts_count(QemuOpts *opts)
{
size_t n = 0;
qemu_opt_foreach(opts, opts_count_iter, &n, NULL);
return n;
}
static void test_opts_parse(void)
{
Error *err = NULL;
QemuOpts *opts;
/* Nothing */
opts = qemu_opts_parse(&opts_list_03, "", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 0);
/* Empty key */
opts = qemu_opts_parse(&opts_list_03, "=val", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, ""), ==, "val");
/* Multiple keys, last one wins */
opts = qemu_opts_parse(&opts_list_03, "a=1,b=2,,x,a=3",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 3);
g_assert_cmpstr(qemu_opt_get(opts, "a"), ==, "3");
g_assert_cmpstr(qemu_opt_get(opts, "b"), ==, "2,x");
/* Except when it doesn't */
opts = qemu_opts_parse(&opts_list_03, "id=foo,id=bar",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 0);
g_assert_cmpstr(qemu_opts_id(opts), ==, "foo");
/* TODO Cover low-level access to repeated keys */
/* Trailing comma is ignored */
opts = qemu_opts_parse(&opts_list_03, "x=y,", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, "x"), ==, "y");
/* Except when it isn't */
opts = qemu_opts_parse(&opts_list_03, ",", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, ""), ==, "on");
/* Duplicate ID */
opts = qemu_opts_parse(&opts_list_03, "x=y,id=foo", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* TODO Cover .merge_lists = true */
/* Buggy ID recognition (fixed) */
opts = qemu_opts_parse(&opts_list_03, "x=,,id=bar", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert(!qemu_opts_id(opts));
g_assert_cmpstr(qemu_opt_get(opts, "x"), ==, ",id=bar");
/* Anti-social ID */
opts = qemu_opts_parse(&opts_list_01, "id=666", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Implied value */
opts = qemu_opts_parse(&opts_list_03, "an,noaus,noaus=",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 3);
g_assert_cmpstr(qemu_opt_get(opts, "an"), ==, "on");
g_assert_cmpstr(qemu_opt_get(opts, "aus"), ==, "off");
g_assert_cmpstr(qemu_opt_get(opts, "noaus"), ==, "");
/* Implied value, negated empty key */
opts = qemu_opts_parse(&opts_list_03, "no", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, ""), ==, "off");
/* Implied key */
opts = qemu_opts_parse(&opts_list_03, "an,noaus,noaus=", true,
&error_abort);
g_assert_cmpuint(opts_count(opts), ==, 3);
g_assert_cmpstr(qemu_opt_get(opts, "implied"), ==, "an");
g_assert_cmpstr(qemu_opt_get(opts, "aus"), ==, "off");
g_assert_cmpstr(qemu_opt_get(opts, "noaus"), ==, "");
/* Implied key with empty value */
opts = qemu_opts_parse(&opts_list_03, ",", true, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, "implied"), ==, "");
/* Implied key with comma value */
opts = qemu_opts_parse(&opts_list_03, ",,,a=1", true, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmpstr(qemu_opt_get(opts, "implied"), ==, ",");
g_assert_cmpstr(qemu_opt_get(opts, "a"), ==, "1");
/* Empty key is not an implied key */
opts = qemu_opts_parse(&opts_list_03, "=val", true, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, ""), ==, "val");
/* Unknown key */
opts = qemu_opts_parse(&opts_list_01, "nonexistent=", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
qemu_opts_reset(&opts_list_01);
qemu_opts_reset(&opts_list_03);
}
static void test_opts_parse_bool(void)
{
Error *err = NULL;
QemuOpts *opts;
opts = qemu_opts_parse(&opts_list_02, "bool1=on,bool2=off",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert(qemu_opt_get_bool(opts, "bool1", false));
g_assert(!qemu_opt_get_bool(opts, "bool2", true));
opts = qemu_opts_parse(&opts_list_02, "bool1=offer", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
qemu_opts_reset(&opts_list_02);
}
static void test_opts_parse_number(void)
{
Error *err = NULL;
QemuOpts *opts;
/* Lower limit zero */
opts = qemu_opts_parse(&opts_list_01, "number1=0", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_number(opts, "number1", 1), ==, 0);
/* Upper limit 2^64-1 */
opts = qemu_opts_parse(&opts_list_01,
"number1=18446744073709551615,number2=-1",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmphex(qemu_opt_get_number(opts, "number1", 1), ==, UINT64_MAX);
g_assert_cmphex(qemu_opt_get_number(opts, "number2", 0), ==, UINT64_MAX);
/* Above upper limit */
opts = qemu_opts_parse(&opts_list_01, "number1=18446744073709551616",
false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Below lower limit */
opts = qemu_opts_parse(&opts_list_01, "number1=-18446744073709551616",
false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Hex and octal */
opts = qemu_opts_parse(&opts_list_01, "number1=0x2a,number2=052",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmpuint(qemu_opt_get_number(opts, "number1", 1), ==, 42);
g_assert_cmpuint(qemu_opt_get_number(opts, "number2", 0), ==, 42);
/* Invalid */
opts = qemu_opts_parse(&opts_list_01, "number1=", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
opts = qemu_opts_parse(&opts_list_01, "number1=eins", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Leading whitespace */
opts = qemu_opts_parse(&opts_list_01, "number1= \t42",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_number(opts, "number1", 1), ==, 42);
/* Trailing crap */
opts = qemu_opts_parse(&opts_list_01, "number1=3.14", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
opts = qemu_opts_parse(&opts_list_01, "number1=08", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
opts = qemu_opts_parse(&opts_list_01, "number1=0 ", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
qemu_opts_reset(&opts_list_01);
}
static void test_opts_parse_size(void)
{
Error *err = NULL;
QemuOpts *opts;
/* Lower limit zero */
opts = qemu_opts_parse(&opts_list_02, "size1=0", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_size(opts, "size1", 1), ==, 0);
/* Note: precision is 53 bits since we're parsing with strtod() */
/* Around limit of precision: 2^53-1, 2^53, 2^54 */
opts = qemu_opts_parse(&opts_list_02,
"size1=9007199254740991,"
"size2=9007199254740992,"
"size3=9007199254740993",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 3);
g_assert_cmphex(qemu_opt_get_size(opts, "size1", 1),
==, 0x1fffffffffffff);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 1),
==, 0x20000000000000);
g_assert_cmphex(qemu_opt_get_size(opts, "size3", 1),
==, 0x20000000000000);
/* Close to signed upper limit 0x7ffffffffffffc00 (53 msbs set) */
opts = qemu_opts_parse(&opts_list_02,
"size1=9223372036854774784," /* 7ffffffffffffc00 */
"size2=9223372036854775295", /* 7ffffffffffffdff */
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmphex(qemu_opt_get_size(opts, "size1", 1),
==, 0x7ffffffffffffc00);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 1),
==, 0x7ffffffffffffc00);
/* Close to actual upper limit 0xfffffffffffff800 (53 msbs set) */
opts = qemu_opts_parse(&opts_list_02,
"size1=18446744073709549568," /* fffffffffffff800 */
"size2=18446744073709550591", /* fffffffffffffbff */
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmphex(qemu_opt_get_size(opts, "size1", 1),
==, 0xfffffffffffff800);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 1),
==, 0xfffffffffffff800);
/* Beyond limits */
opts = qemu_opts_parse(&opts_list_02, "size1=-1", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
opts = qemu_opts_parse(&opts_list_02,
"size1=18446744073709550592", /* fffffffffffffc00 */
false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Suffixes */
opts = qemu_opts_parse(&opts_list_02, "size1=8b,size2=1.5k,size3=2M",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 3);
g_assert_cmphex(qemu_opt_get_size(opts, "size1", 0), ==, 8);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 0), ==, 1536);
g_assert_cmphex(qemu_opt_get_size(opts, "size3", 0), ==, 2 * MiB);
opts = qemu_opts_parse(&opts_list_02, "size1=0.1G,size2=16777215T",
false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 2);
g_assert_cmphex(qemu_opt_get_size(opts, "size1", 0), ==, GiB / 10);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 0), ==, 16777215ULL * TiB);
/* Beyond limit with suffix */
opts = qemu_opts_parse(&opts_list_02, "size1=16777216T",
false, &err);
error_free_or_abort(&err);
g_assert(!opts);
/* Trailing crap */
opts = qemu_opts_parse(&opts_list_02, "size1=16E", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
opts = qemu_opts_parse(&opts_list_02, "size1=16Gi", false, &err);
error_free_or_abort(&err);
g_assert(!opts);
qemu_opts_reset(&opts_list_02);
}
static void test_has_help_option(void)
{
static const struct {
const char *params;
/* expected value of qemu_opt_has_help_opt() with implied=false */
bool expect;
/* expected value of qemu_opt_has_help_opt() with implied=true */
bool expect_implied;
} test[] = {
{ "help", true, false },
{ "?", true, false },
{ "helpme", false, false },
{ "?me", false, false },
{ "a,help", true, true },
{ "a,?", true, true },
{ "a=0,help,b", true, true },
{ "a=0,?,b", true, true },
{ "help,b=1", true, false },
{ "?,b=1", true, false },
{ "a,b,,help", true, true },
{ "a,b,,?", true, true },
};
int i;
QemuOpts *opts;
for (i = 0; i < ARRAY_SIZE(test); i++) {
g_assert_cmpint(has_help_option(test[i].params),
==, test[i].expect);
opts = qemu_opts_parse(&opts_list_03, test[i].params, false,
&error_abort);
g_assert_cmpint(qemu_opt_has_help_opt(opts),
==, test[i].expect);
qemu_opts_del(opts);
opts = qemu_opts_parse(&opts_list_03, test[i].params, true,
&error_abort);
g_assert_cmpint(qemu_opt_has_help_opt(opts),
==, test[i].expect_implied);
qemu_opts_del(opts);
}
}
static void append_verify_list_01(QemuOptDesc *desc, bool with_overlapping)
{
int i = 0;
if (with_overlapping) {
g_assert_cmpstr(desc[i].name, ==, "str1");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_STRING);
g_assert_cmpstr(desc[i].help, ==,
"Help texts are preserved in qemu_opts_append");
g_assert_cmpstr(desc[i].def_value_str, ==, "default");
i++;
g_assert_cmpstr(desc[i].name, ==, "str2");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_STRING);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
}
g_assert_cmpstr(desc[i].name, ==, "str3");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_STRING);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "number1");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_NUMBER);
g_assert_cmpstr(desc[i].help, ==,
"Having help texts only for some options is okay");
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "number2");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_NUMBER);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, NULL);
}
static void append_verify_list_02(QemuOptDesc *desc)
{
int i = 0;
g_assert_cmpstr(desc[i].name, ==, "str1");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_STRING);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "str2");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_STRING);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "bool1");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_BOOL);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "bool2");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_BOOL);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "size1");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_SIZE);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "size2");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_SIZE);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
i++;
g_assert_cmpstr(desc[i].name, ==, "size3");
g_assert_cmpint(desc[i].type, ==, QEMU_OPT_SIZE);
g_assert_cmpstr(desc[i].help, ==, NULL);
g_assert_cmpstr(desc[i].def_value_str, ==, NULL);
}
static void test_opts_append_to_null(void)
{
QemuOptsList *merged;
merged = qemu_opts_append(NULL, &opts_list_01);
g_assert(merged != &opts_list_01);
g_assert_cmpstr(merged->name, ==, NULL);
g_assert_cmpstr(merged->implied_opt_name, ==, NULL);
g_assert_false(merged->merge_lists);
append_verify_list_01(merged->desc, true);
qemu_opts_free(merged);
}
static void test_opts_append(void)
{
QemuOptsList *first, *merged;
first = qemu_opts_append(NULL, &opts_list_02);
merged = qemu_opts_append(first, &opts_list_01);
g_assert(first != &opts_list_02);
g_assert(merged != &opts_list_01);
g_assert_cmpstr(merged->name, ==, NULL);
g_assert_cmpstr(merged->implied_opt_name, ==, NULL);
g_assert_false(merged->merge_lists);
append_verify_list_02(&merged->desc[0]);
append_verify_list_01(&merged->desc[7], false);
qemu_opts_free(merged);
}
static void test_opts_to_qdict_basic(void)
{
QemuOpts *opts;
QDict *dict;
opts = qemu_opts_parse(&opts_list_01, "str1=foo,str2=,str3=bar,number1=42",
false, &error_abort);
g_assert(opts != NULL);
dict = qemu_opts_to_qdict(opts, NULL);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "str1"), ==, "foo");
g_assert_cmpstr(qdict_get_str(dict, "str2"), ==, "");
g_assert_cmpstr(qdict_get_str(dict, "str3"), ==, "bar");
g_assert_cmpstr(qdict_get_str(dict, "number1"), ==, "42");
g_assert_false(qdict_haskey(dict, "number2"));
qobject_unref(dict);
qemu_opts_del(opts);
}
static void test_opts_to_qdict_filtered(void)
{
QemuOptsList *first, *merged;
QemuOpts *opts;
QDict *dict;
first = qemu_opts_append(NULL, &opts_list_02);
merged = qemu_opts_append(first, &opts_list_01);
opts = qemu_opts_parse(merged,
"str1=foo,str2=,str3=bar,bool1=off,number1=42",
false, &error_abort);
g_assert(opts != NULL);
/* Convert to QDict without deleting from opts */
dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_01, false);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "str1"), ==, "foo");
g_assert_cmpstr(qdict_get_str(dict, "str2"), ==, "");
g_assert_cmpstr(qdict_get_str(dict, "str3"), ==, "bar");
g_assert_cmpstr(qdict_get_str(dict, "number1"), ==, "42");
g_assert_false(qdict_haskey(dict, "number2"));
g_assert_false(qdict_haskey(dict, "bool1"));
qobject_unref(dict);
dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_02, false);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "str1"), ==, "foo");
g_assert_cmpstr(qdict_get_str(dict, "str2"), ==, "");
g_assert_cmpstr(qdict_get_str(dict, "bool1"), ==, "off");
g_assert_false(qdict_haskey(dict, "str3"));
g_assert_false(qdict_haskey(dict, "number1"));
g_assert_false(qdict_haskey(dict, "number2"));
qobject_unref(dict);
/* Now delete converted options from opts */
dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_01, true);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "str1"), ==, "foo");
g_assert_cmpstr(qdict_get_str(dict, "str2"), ==, "");
g_assert_cmpstr(qdict_get_str(dict, "str3"), ==, "bar");
g_assert_cmpstr(qdict_get_str(dict, "number1"), ==, "42");
g_assert_false(qdict_haskey(dict, "number2"));
g_assert_false(qdict_haskey(dict, "bool1"));
qobject_unref(dict);
dict = qemu_opts_to_qdict_filtered(opts, NULL, &opts_list_02, true);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "bool1"), ==, "off");
g_assert_false(qdict_haskey(dict, "str1"));
g_assert_false(qdict_haskey(dict, "str2"));
g_assert_false(qdict_haskey(dict, "str3"));
g_assert_false(qdict_haskey(dict, "number1"));
g_assert_false(qdict_haskey(dict, "number2"));
qobject_unref(dict);
g_assert_true(QTAILQ_EMPTY(&opts->head));
qemu_opts_del(opts);
qemu_opts_free(merged);
}
static void test_opts_to_qdict_duplicates(void)
{
QemuOpts *opts;
QemuOpt *opt;
QDict *dict;
opts = qemu_opts_parse(&opts_list_03, "foo=a,foo=b", false, &error_abort);
g_assert(opts != NULL);
/* Verify that opts has two options with the same name */
opt = QTAILQ_FIRST(&opts->head);
g_assert_cmpstr(opt->name, ==, "foo");
g_assert_cmpstr(opt->str , ==, "a");
opt = QTAILQ_NEXT(opt, next);
g_assert_cmpstr(opt->name, ==, "foo");
g_assert_cmpstr(opt->str , ==, "b");
opt = QTAILQ_NEXT(opt, next);
g_assert(opt == NULL);
/* In the conversion to QDict, the last one wins */
dict = qemu_opts_to_qdict(opts, NULL);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "foo"), ==, "b");
qobject_unref(dict);
/* The last one still wins if entries are deleted, and both are deleted */
dict = qemu_opts_to_qdict_filtered(opts, NULL, NULL, true);
g_assert(dict != NULL);
g_assert_cmpstr(qdict_get_str(dict, "foo"), ==, "b");
qobject_unref(dict);
g_assert_true(QTAILQ_EMPTY(&opts->head));
qemu_opts_del(opts);
}
int main(int argc, char *argv[])
{
register_opts();
g_test_init(&argc, &argv, NULL);
g_test_add_func("/qemu-opts/find_unknown_opts", test_find_unknown_opts);
g_test_add_func("/qemu-opts/find_opts", test_qemu_find_opts);
g_test_add_func("/qemu-opts/opts_create", test_qemu_opts_create);
g_test_add_func("/qemu-opts/opt_get", test_qemu_opt_get);
g_test_add_func("/qemu-opts/opt_get_bool", test_qemu_opt_get_bool);
g_test_add_func("/qemu-opts/opt_get_number", test_qemu_opt_get_number);
g_test_add_func("/qemu-opts/opt_get_size", test_qemu_opt_get_size);
g_test_add_func("/qemu-opts/opt_unset", test_qemu_opt_unset);
g_test_add_func("/qemu-opts/opts_reset", test_qemu_opts_reset);
g_test_add_func("/qemu-opts/opts_set", test_qemu_opts_set);
g_test_add_func("/qemu-opts/opts_parse/general", test_opts_parse);
g_test_add_func("/qemu-opts/opts_parse/bool", test_opts_parse_bool);
g_test_add_func("/qemu-opts/opts_parse/number", test_opts_parse_number);
g_test_add_func("/qemu-opts/opts_parse/size", test_opts_parse_size);
g_test_add_func("/qemu-opts/has_help_option", test_has_help_option);
g_test_add_func("/qemu-opts/append_to_null", test_opts_append_to_null);
g_test_add_func("/qemu-opts/append", test_opts_append);
g_test_add_func("/qemu-opts/to_qdict/basic", test_opts_to_qdict_basic);
g_test_add_func("/qemu-opts/to_qdict/filtered", test_opts_to_qdict_filtered);
g_test_add_func("/qemu-opts/to_qdict/duplicates", test_opts_to_qdict_duplicates);
g_test_run();
return 0;
}
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