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qemu/tests/test-keyval.c
Kevin Wolf 8bf12c4f75 keyval: Parse help options 
This adds a special meaning for 'help' and '?' as options to the keyval
parser. Instead of being an error (because of a missing value) or a
value for an implied key, they now request help, which is a new boolean
output of the parser in addition to the QDict.

A new parameter 'p_help' is added to keyval_parse() that contains on
return whether help was requested. If NULL is passed, requesting help
results in an error and all other cases work like before.

Turning previous error cases into help is a compatible extension. The
behaviour potentially changes for implied keys: They could previously
get 'help' as their value, which is now interpreted as requesting help.

This is not a problem in practice because 'help' and '?' are not a valid
values for the implied key of any option parsed with keyval_parse():

* audiodev: union Audiodev, implied key "driver" is enum AudiodevDriver,
  "help" and "?" are not among its values

* display: union DisplayOptions, implied key "type" is enum
  DisplayType, "help" and "?" are not among its values

* blockdev: union BlockdevOptions, implied key "driver is enum
  BlockdevDriver, "help" and "?" are not among its values

* export: union BlockExport, implied key "type" is enum BlockExportType,
  "help" and "?" are not among its values

* monitor: struct MonitorOptions, implied key "mode" is enum MonitorMode,
  "help" and "?" are not among its values

* nbd-server: struct NbdServerOptions, no implied key.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20201011073505.1185335-5-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-10-15 16:06:27 +02:00

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/*
* Unit tests for parsing of KEY=VALUE,... strings
*
* Copyright (C) 2017 Red Hat Inc.
*
* Authors:
* Markus Armbruster <armbru@redhat.com>,
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qlist.h"
#include "qapi/qmp/qstring.h"
#include "qapi/qobject-input-visitor.h"
#include "test-qapi-visit.h"
#include "qemu/cutils.h"
#include "qemu/option.h"
static void test_keyval_parse(void)
{
Error *err = NULL;
QDict *qdict, *sub_qdict;
char long_key[129];
char *params;
bool help;
/* Nothing */
qdict = keyval_parse("", NULL, NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 0);
qobject_unref(qdict);
/* Empty key (qemu_opts_parse() accepts this) */
qdict = keyval_parse("=val", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Empty key fragment */
qdict = keyval_parse(".", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
qdict = keyval_parse("key.", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Invalid non-empty key (qemu_opts_parse() doesn't care) */
qdict = keyval_parse("7up=val", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Overlong key */
memset(long_key, 'a', 127);
long_key[127] = 'z';
long_key[128] = 0;
params = g_strdup_printf("k.%s=v", long_key);
qdict = keyval_parse(params + 2, NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Overlong key fragment */
qdict = keyval_parse(params, NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
g_free(params);
/* Long key (qemu_opts_parse() accepts and truncates silently) */
params = g_strdup_printf("k.%s=v", long_key + 1);
qdict = keyval_parse(params + 2, NULL, NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 1);
g_assert_cmpstr(qdict_get_try_str(qdict, long_key + 1), ==, "v");
qobject_unref(qdict);
/* Long key fragment */
qdict = keyval_parse(params, NULL, NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 1);
sub_qdict = qdict_get_qdict(qdict, "k");
g_assert(sub_qdict);
g_assert_cmpuint(qdict_size(sub_qdict), ==, 1);
g_assert_cmpstr(qdict_get_try_str(sub_qdict, long_key + 1), ==, "v");
qobject_unref(qdict);
g_free(params);
/* Crap after valid key */
qdict = keyval_parse("key[0]=val", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Multiple keys, last one wins */
qdict = keyval_parse("a=1,b=2,,x,a=3", NULL, NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 2);
g_assert_cmpstr(qdict_get_try_str(qdict, "a"), ==, "3");
g_assert_cmpstr(qdict_get_try_str(qdict, "b"), ==, "2,x");
qobject_unref(qdict);
/* Even when it doesn't in qemu_opts_parse() */
qdict = keyval_parse("id=foo,id=bar", NULL, NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 1);
g_assert_cmpstr(qdict_get_try_str(qdict, "id"), ==, "bar");
qobject_unref(qdict);
/* Dotted keys */
qdict = keyval_parse("a.b.c=1,a.b.c=2,d=3", NULL, NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 2);
sub_qdict = qdict_get_qdict(qdict, "a");
g_assert(sub_qdict);
g_assert_cmpuint(qdict_size(sub_qdict), ==, 1);
sub_qdict = qdict_get_qdict(sub_qdict, "b");
g_assert(sub_qdict);
g_assert_cmpuint(qdict_size(sub_qdict), ==, 1);
g_assert_cmpstr(qdict_get_try_str(sub_qdict, "c"), ==, "2");
g_assert_cmpstr(qdict_get_try_str(qdict, "d"), ==, "3");
qobject_unref(qdict);
/* Inconsistent dotted keys */
qdict = keyval_parse("a.b=1,a=2", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
qdict = keyval_parse("a.b=1,a.b.c=2", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Trailing comma is ignored */
qdict = keyval_parse("x=y,", NULL, NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 1);
g_assert_cmpstr(qdict_get_try_str(qdict, "x"), ==, "y");
qobject_unref(qdict);
/* Except when it isn't */
qdict = keyval_parse(",", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Value containing ,id= not misinterpreted as qemu_opts_parse() does */
qdict = keyval_parse("x=,,id=bar", NULL, NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 1);
g_assert_cmpstr(qdict_get_try_str(qdict, "x"), ==, ",id=bar");
qobject_unref(qdict);
/* Anti-social ID is left to caller (qemu_opts_parse() rejects it) */
qdict = keyval_parse("id=666", NULL, NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 1);
g_assert_cmpstr(qdict_get_try_str(qdict, "id"), ==, "666");
qobject_unref(qdict);
/* Implied value not supported (unlike qemu_opts_parse()) */
qdict = keyval_parse("an,noaus,noaus=", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Implied value, key "no" (qemu_opts_parse(): negated empty key) */
qdict = keyval_parse("no", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Implied key */
qdict = keyval_parse("an,aus=off,noaus=", "implied", NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 3);
g_assert_cmpstr(qdict_get_try_str(qdict, "implied"), ==, "an");
g_assert_cmpstr(qdict_get_try_str(qdict, "aus"), ==, "off");
g_assert_cmpstr(qdict_get_try_str(qdict, "noaus"), ==, "");
qobject_unref(qdict);
/* Implied dotted key */
qdict = keyval_parse("val", "eins.zwei", NULL, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 1);
sub_qdict = qdict_get_qdict(qdict, "eins");
g_assert(sub_qdict);
g_assert_cmpuint(qdict_size(sub_qdict), ==, 1);
g_assert_cmpstr(qdict_get_try_str(sub_qdict, "zwei"), ==, "val");
qobject_unref(qdict);
/* Implied key with empty value (qemu_opts_parse() accepts this) */
qdict = keyval_parse(",", "implied", NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Likewise (qemu_opts_parse(): implied key with comma value) */
qdict = keyval_parse(",,,a=1", "implied", NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Implied key's value can't have comma (qemu_opts_parse(): it can) */
qdict = keyval_parse("val,,ue", "implied", NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Empty key is not an implied key */
qdict = keyval_parse("=val", "implied", NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* "help" by itself, without implied key */
qdict = keyval_parse("help", NULL, &help, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 0);
g_assert(help);
qobject_unref(qdict);
/* "help" by itself, with implied key */
qdict = keyval_parse("help", "implied", &help, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 0);
g_assert(help);
qobject_unref(qdict);
/* "help" when no help is available, without implied key */
qdict = keyval_parse("help", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* "help" when no help is available, with implied key */
qdict = keyval_parse("help", "implied", NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Key "help" */
qdict = keyval_parse("help=on", NULL, &help, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 1);
g_assert_cmpstr(qdict_get_try_str(qdict, "help"), ==, "on");
g_assert(!help);
qobject_unref(qdict);
/* "help" followed by crap, without implied key */
qdict = keyval_parse("help.abc", NULL, &help, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* "help" followed by crap, with implied key */
qdict = keyval_parse("help.abc", "implied", &help, &err);
g_assert_cmpuint(qdict_size(qdict), ==, 1);
g_assert_cmpstr(qdict_get_try_str(qdict, "implied"), ==, "help.abc");
g_assert(!help);
qobject_unref(qdict);
/* "help" with other stuff, without implied key */
qdict = keyval_parse("number=42,help,foo=bar", NULL, &help, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 2);
g_assert_cmpstr(qdict_get_try_str(qdict, "number"), ==, "42");
g_assert_cmpstr(qdict_get_try_str(qdict, "foo"), ==, "bar");
g_assert(help);
qobject_unref(qdict);
/* "help" with other stuff, with implied key */
qdict = keyval_parse("val,help,foo=bar", "implied", &help, &error_abort);
g_assert_cmpuint(qdict_size(qdict), ==, 2);
g_assert_cmpstr(qdict_get_try_str(qdict, "implied"), ==, "val");
g_assert_cmpstr(qdict_get_try_str(qdict, "foo"), ==, "bar");
g_assert(help);
qobject_unref(qdict);
}
static void check_list012(QList *qlist)
{
static const char *expected[] = { "null", "eins", "zwei" };
int i;
QString *qstr;
g_assert(qlist);
for (i = 0; i < ARRAY_SIZE(expected); i++) {
qstr = qobject_to(QString, qlist_pop(qlist));
g_assert(qstr);
g_assert_cmpstr(qstring_get_str(qstr), ==, expected[i]);
qobject_unref(qstr);
}
g_assert(qlist_empty(qlist));
}
static void test_keyval_parse_list(void)
{
Error *err = NULL;
QDict *qdict, *sub_qdict;
/* Root can't be a list */
qdict = keyval_parse("0=1", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* List elements need not be in order */
qdict = keyval_parse("list.0=null,list.2=zwei,list.1=eins", NULL, NULL,
&error_abort);
g_assert_cmpint(qdict_size(qdict), ==, 1);
check_list012(qdict_get_qlist(qdict, "list"));
qobject_unref(qdict);
/* Multiple indexes, last one wins */
qdict = keyval_parse("list.1=goner,list.0=null,list.01=eins,list.2=zwei",
NULL, NULL, &error_abort);
g_assert_cmpint(qdict_size(qdict), ==, 1);
check_list012(qdict_get_qlist(qdict, "list"));
qobject_unref(qdict);
/* List at deeper nesting */
qdict = keyval_parse("a.list.1=eins,a.list.00=null,a.list.2=zwei", NULL,
NULL, &error_abort);
g_assert_cmpint(qdict_size(qdict), ==, 1);
sub_qdict = qdict_get_qdict(qdict, "a");
g_assert_cmpint(qdict_size(sub_qdict), ==, 1);
check_list012(qdict_get_qlist(sub_qdict, "list"));
qobject_unref(qdict);
/* Inconsistent dotted keys: both list and dictionary */
qdict = keyval_parse("a.b.c=1,a.b.0=2", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
qdict = keyval_parse("a.0.c=1,a.b.c=2", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
/* Missing list indexes */
qdict = keyval_parse("list.1=lonely", NULL, NULL, &err);
error_free_or_abort(&err);
g_assert(!qdict);
qdict = keyval_parse("list.0=null,list.2=eins,list.02=zwei", NULL, NULL,
&err);
error_free_or_abort(&err);
g_assert(!qdict);
}
static void test_keyval_visit_bool(void)
{
Error *err = NULL;
Visitor *v;
QDict *qdict;
bool b;
qdict = keyval_parse("bool1=on,bool2=off", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_bool(v, "bool1", &b, &error_abort);
g_assert(b);
visit_type_bool(v, "bool2", &b, &error_abort);
g_assert(!b);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
qdict = keyval_parse("bool1=offer", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_bool(v, "bool1", &b, &err);
error_free_or_abort(&err);
visit_end_struct(v, NULL);
visit_free(v);
}
static void test_keyval_visit_number(void)
{
Error *err = NULL;
Visitor *v;
QDict *qdict;
uint64_t u;
/* Lower limit zero */
qdict = keyval_parse("number1=0", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_uint64(v, "number1", &u, &error_abort);
g_assert_cmpuint(u, ==, 0);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
/* Upper limit 2^64-1 */
qdict = keyval_parse("number1=18446744073709551615,number2=-1", NULL,
NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_uint64(v, "number1", &u, &error_abort);
g_assert_cmphex(u, ==, UINT64_MAX);
visit_type_uint64(v, "number2", &u, &error_abort);
g_assert_cmphex(u, ==, UINT64_MAX);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
/* Above upper limit */
qdict = keyval_parse("number1=18446744073709551616", NULL, NULL,
&error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_uint64(v, "number1", &u, &err);
error_free_or_abort(&err);
visit_end_struct(v, NULL);
visit_free(v);
/* Below lower limit */
qdict = keyval_parse("number1=-18446744073709551616", NULL, NULL,
&error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_uint64(v, "number1", &u, &err);
error_free_or_abort(&err);
visit_end_struct(v, NULL);
visit_free(v);
/* Hex and octal */
qdict = keyval_parse("number1=0x2a,number2=052", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_uint64(v, "number1", &u, &error_abort);
g_assert_cmpuint(u, ==, 42);
visit_type_uint64(v, "number2", &u, &error_abort);
g_assert_cmpuint(u, ==, 42);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
/* Trailing crap */
qdict = keyval_parse("number1=3.14,number2=08", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_uint64(v, "number1", &u, &err);
error_free_or_abort(&err);
visit_type_uint64(v, "number2", &u, &err);
error_free_or_abort(&err);
visit_end_struct(v, NULL);
visit_free(v);
}
static void test_keyval_visit_size(void)
{
Error *err = NULL;
Visitor *v;
QDict *qdict;
uint64_t sz;
/* Lower limit zero */
qdict = keyval_parse("sz1=0", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_size(v, "sz1", &sz, &error_abort);
g_assert_cmpuint(sz, ==, 0);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
/* Note: precision is 53 bits since we're parsing with strtod() */
/* Around limit of precision: 2^53-1, 2^53, 2^53+1 */
qdict = keyval_parse("sz1=9007199254740991,"
"sz2=9007199254740992,"
"sz3=9007199254740993",
NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_size(v, "sz1", &sz, &error_abort);
g_assert_cmphex(sz, ==, 0x1fffffffffffff);
visit_type_size(v, "sz2", &sz, &error_abort);
g_assert_cmphex(sz, ==, 0x20000000000000);
visit_type_size(v, "sz3", &sz, &error_abort);
g_assert_cmphex(sz, ==, 0x20000000000000);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
/* Close to signed upper limit 0x7ffffffffffffc00 (53 msbs set) */
qdict = keyval_parse("sz1=9223372036854774784," /* 7ffffffffffffc00 */
"sz2=9223372036854775295", /* 7ffffffffffffdff */
NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_size(v, "sz1", &sz, &error_abort);
g_assert_cmphex(sz, ==, 0x7ffffffffffffc00);
visit_type_size(v, "sz2", &sz, &error_abort);
g_assert_cmphex(sz, ==, 0x7ffffffffffffc00);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
/* Close to actual upper limit 0xfffffffffffff800 (53 msbs set) */
qdict = keyval_parse("sz1=18446744073709549568," /* fffffffffffff800 */
"sz2=18446744073709550591", /* fffffffffffffbff */
NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_size(v, "sz1", &sz, &error_abort);
g_assert_cmphex(sz, ==, 0xfffffffffffff800);
visit_type_size(v, "sz2", &sz, &error_abort);
g_assert_cmphex(sz, ==, 0xfffffffffffff800);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
/* Beyond limits */
qdict = keyval_parse("sz1=-1,"
"sz2=18446744073709550592", /* fffffffffffffc00 */
NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_size(v, "sz1", &sz, &err);
error_free_or_abort(&err);
visit_type_size(v, "sz2", &sz, &err);
error_free_or_abort(&err);
visit_end_struct(v, NULL);
visit_free(v);
/* Suffixes */
qdict = keyval_parse("sz1=8b,sz2=1.5k,sz3=2M,sz4=0.1G,sz5=16777215T",
NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_size(v, "sz1", &sz, &error_abort);
g_assert_cmpuint(sz, ==, 8);
visit_type_size(v, "sz2", &sz, &error_abort);
g_assert_cmpuint(sz, ==, 1536);
visit_type_size(v, "sz3", &sz, &error_abort);
g_assert_cmphex(sz, ==, 2 * MiB);
visit_type_size(v, "sz4", &sz, &error_abort);
g_assert_cmphex(sz, ==, GiB / 10);
visit_type_size(v, "sz5", &sz, &error_abort);
g_assert_cmphex(sz, ==, 16777215ULL * TiB);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
/* Beyond limit with suffix */
qdict = keyval_parse("sz1=16777216T", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_size(v, "sz1", &sz, &err);
error_free_or_abort(&err);
visit_end_struct(v, NULL);
visit_free(v);
/* Trailing crap */
qdict = keyval_parse("sz1=0Z,sz2=16Gi", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_size(v, "sz1", &sz, &err);
error_free_or_abort(&err);
visit_type_size(v, "sz2", &sz, &err);
error_free_or_abort(&err);
visit_end_struct(v, NULL);
visit_free(v);
}
static void test_keyval_visit_dict(void)
{
Error *err = NULL;
Visitor *v;
QDict *qdict;
int64_t i;
qdict = keyval_parse("a.b.c=1,a.b.c=2,d=3", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_start_struct(v, "a", NULL, 0, &error_abort);
visit_start_struct(v, "b", NULL, 0, &error_abort);
visit_type_int(v, "c", &i, &error_abort);
g_assert_cmpint(i, ==, 2);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_type_int(v, "d", &i, &error_abort);
g_assert_cmpint(i, ==, 3);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
qdict = keyval_parse("a.b=", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_start_struct(v, "a", NULL, 0, &error_abort);
visit_type_int(v, "c", &i, &err); /* a.c missing */
error_free_or_abort(&err);
visit_check_struct(v, &err);
error_free_or_abort(&err); /* a.b unexpected */
visit_end_struct(v, NULL);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
}
static void test_keyval_visit_list(void)
{
Error *err = NULL;
Visitor *v;
QDict *qdict;
char *s;
qdict = keyval_parse("a.0=,a.1=I,a.2.0=II", NULL, NULL, &error_abort);
/* TODO empty list */
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_start_list(v, "a", NULL, 0, &error_abort);
visit_type_str(v, NULL, &s, &error_abort);
g_assert_cmpstr(s, ==, "");
g_free(s);
visit_type_str(v, NULL, &s, &error_abort);
g_assert_cmpstr(s, ==, "I");
g_free(s);
visit_start_list(v, NULL, NULL, 0, &error_abort);
visit_type_str(v, NULL, &s, &error_abort);
g_assert_cmpstr(s, ==, "II");
g_free(s);
visit_check_list(v, &error_abort);
visit_end_list(v, NULL);
visit_check_list(v, &error_abort);
visit_end_list(v, NULL);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
qdict = keyval_parse("a.0=,b.0.0=head", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_start_list(v, "a", NULL, 0, &error_abort);
visit_check_list(v, &err); /* a[0] unexpected */
error_free_or_abort(&err);
visit_end_list(v, NULL);
visit_start_list(v, "b", NULL, 0, &error_abort);
visit_start_list(v, NULL, NULL, 0, &error_abort);
visit_type_str(v, NULL, &s, &error_abort);
g_assert_cmpstr(s, ==, "head");
g_free(s);
visit_type_str(v, NULL, &s, &err); /* b[0][1] missing */
error_free_or_abort(&err);
visit_end_list(v, NULL);
visit_end_list(v, NULL);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
}
static void test_keyval_visit_optional(void)
{
Visitor *v;
QDict *qdict;
bool present;
int64_t i;
qdict = keyval_parse("a.b=1", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_optional(v, "b", &present);
g_assert(!present); /* b missing */
visit_optional(v, "a", &present);
g_assert(present); /* a present */
visit_start_struct(v, "a", NULL, 0, &error_abort);
visit_optional(v, "b", &present);
g_assert(present); /* a.b present */
visit_type_int(v, "b", &i, &error_abort);
g_assert_cmpint(i, ==, 1);
visit_optional(v, "a", &present);
g_assert(!present); /* a.a missing */
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
}
static void test_keyval_visit_alternate(void)
{
Error *err = NULL;
Visitor *v;
QDict *qdict;
AltStrObj *aso;
AltNumEnum *ane;
AltEnumBool *aeb;
/*
* Can't do scalar alternate variants other than string. You get
* the string variant if there is one, else an error.
* TODO make it work for unambiguous cases like AltEnumBool below
*/
qdict = keyval_parse("a=1,b=2,c=on", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_AltStrObj(v, "a", &aso, &error_abort);
g_assert_cmpint(aso->type, ==, QTYPE_QSTRING);
g_assert_cmpstr(aso->u.s, ==, "1");
qapi_free_AltStrObj(aso);
visit_type_AltNumEnum(v, "b", &ane, &err);
error_free_or_abort(&err);
visit_type_AltEnumBool(v, "c", &aeb, &err);
error_free_or_abort(&err);
visit_end_struct(v, NULL);
visit_free(v);
}
static void test_keyval_visit_any(void)
{
Visitor *v;
QDict *qdict;
QObject *any;
QList *qlist;
QString *qstr;
qdict = keyval_parse("a.0=null,a.1=1", NULL, NULL, &error_abort);
v = qobject_input_visitor_new_keyval(QOBJECT(qdict));
qobject_unref(qdict);
visit_start_struct(v, NULL, NULL, 0, &error_abort);
visit_type_any(v, "a", &any, &error_abort);
qlist = qobject_to(QList, any);
g_assert(qlist);
qstr = qobject_to(QString, qlist_pop(qlist));
g_assert_cmpstr(qstring_get_str(qstr), ==, "null");
qobject_unref(qstr);
qstr = qobject_to(QString, qlist_pop(qlist));
g_assert_cmpstr(qstring_get_str(qstr), ==, "1");
g_assert(qlist_empty(qlist));
qobject_unref(qstr);
qobject_unref(any);
visit_check_struct(v, &error_abort);
visit_end_struct(v, NULL);
visit_free(v);
}
int main(int argc, char *argv[])
{
g_test_init(&argc, &argv, NULL);
g_test_add_func("/keyval/keyval_parse", test_keyval_parse);
g_test_add_func("/keyval/keyval_parse/list", test_keyval_parse_list);
g_test_add_func("/keyval/visit/bool", test_keyval_visit_bool);
g_test_add_func("/keyval/visit/number", test_keyval_visit_number);
g_test_add_func("/keyval/visit/size", test_keyval_visit_size);
g_test_add_func("/keyval/visit/dict", test_keyval_visit_dict);
g_test_add_func("/keyval/visit/list", test_keyval_visit_list);
g_test_add_func("/keyval/visit/optional", test_keyval_visit_optional);
g_test_add_func("/keyval/visit/alternate", test_keyval_visit_alternate);
g_test_add_func("/keyval/visit/any", test_keyval_visit_any);
g_test_run();
return 0;
}
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