test-qemu-opts: Cover qemu_opts_parse()

The new tests demonstrate a few bugs, all clearly marked.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-2-git-send-email-armbru@redhat.com>
[A few additional test cases squashed in, see
Message-ID: <871supjijq.fsf@dusky.pond.sub.org>]
This commit is contained in:
Markus Armbruster 2017-02-21 21:13:45 +01:00
parent 10f25e4844
commit 694baf57ae
1 changed files with 329 additions and 3 deletions

View File

@ -8,6 +8,7 @@
*/
#include "qemu/osdep.h"
#include "qemu/cutils.h"
#include "qapi/error.h"
#include "qapi/qmp/qstring.h"
#include "qemu/config-file.h"
@ -29,6 +30,9 @@ static QemuOptsList opts_list_01 = {
},{
.name = "number1",
.type = QEMU_OPT_NUMBER,
},{
.name = "number2",
.type = QEMU_OPT_NUMBER,
},
{ /* end of list */ }
},
@ -41,15 +45,24 @@ static QemuOptsList opts_list_02 = {
{
.name = "str1",
.type = QEMU_OPT_STRING,
},{
.name = "bool1",
.type = QEMU_OPT_BOOL,
},{
.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 */ }
},
@ -57,6 +70,7 @@ static QemuOptsList opts_list_02 = {
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 */
@ -421,6 +435,314 @@ static void test_qemu_opts_set(void)
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;
char long_key[129];
char *params;
/* 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");
/* Long key */
memset(long_key, 'a', 127);
long_key[127] = 'z';
long_key[128] = 0;
params = g_strdup_printf("%s=v", long_key);
opts = qemu_opts_parse(&opts_list_03, params + 1, NULL, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opt_get(opts, long_key + 1), ==, "v");
/* Overlong key gets truncated */
opts = qemu_opts_parse(&opts_list_03, params, NULL, &error_abort);
g_assert(opts_count(opts) == 1);
long_key[127] = 0;
g_assert_cmpstr(qemu_opt_get(opts, long_key), ==, "v");
g_free(params);
/* 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 */
opts = qemu_opts_parse(&opts_list_03, "x=,,id=bar", false, &error_abort);
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpstr(qemu_opts_id(opts), ==, "bar"); /* BUG */
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 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, &error_abort);
/* BUG: should reject */
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_number(opts, "number1", 1), ==, UINT64_MAX);
/* Below lower limit */
opts = qemu_opts_parse(&opts_list_01, "number1=-18446744073709551616",
false, &error_abort);
/* BUG: should reject */
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_number(opts, "number1", 1), ==, UINT64_MAX);
/* 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);
/* BUG: should reject */
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_number(opts, "number1", 1), ==, 0);
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, &error_abort);
/* BUG: should reject */
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_size(opts, "size1", 1), ==, 0);
/* 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 * M_BYTE);
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), ==, G_BYTE / 10);
g_assert_cmphex(qemu_opt_get_size(opts, "size2", 0),
==, 16777215 * T_BYTE);
/* Beyond limit with suffix */
opts = qemu_opts_parse(&opts_list_02, "size1=16777216T",
false, &error_abort);
/* BUG: should reject */
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_size(opts, "size1", 1), ==, 0);
/* 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, &error_abort);
/* BUG: should reject */
g_assert_cmpuint(opts_count(opts), ==, 1);
g_assert_cmpuint(qemu_opt_get_size(opts, "size1", 1), ==, 16 * G_BYTE);
qemu_opts_reset(&opts_list_02);
}
int main(int argc, char *argv[])
{
register_opts();
@ -435,6 +757,10 @@ int main(int argc, char *argv[])
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_run();
return 0;
}