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tests: Add test case for x86 feature parsing compatibility 

Add a new test case to ensure the existing behavior of the
feature parsing code will be kept.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Eduardo Habkost 2016-09-30 15:49:35 -03:00
parent 0975b8b823
commit a2f9976ea8
1 changed files with 44 additions and 0 deletions
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44
tests/test-x86-cpuid-compat.c
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@ -3,6 +3,7 @@
#include "qapi/qmp/qlist.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qint.h"
#include "qapi/qmp/qbool.h"
#include "libqtest.h"
static char *get_cpu0_qom_path(void)
@ -34,6 +35,15 @@ static QObject *qom_get(const char *path, const char *prop)
return ret;
}
static bool qom_get_bool(const char *path, const char *prop)
{
QBool *value = qobject_to_qbool(qom_get(path, prop));
bool b = qbool_get_bool(value);
QDECREF(value);
return b;
}
typedef struct CpuidTestArgs {
const char *cmdline;
const char *property;
@ -66,10 +76,44 @@ static void add_cpuid_test(const char *name, const char *cmdline,
qtest_add_data_func(name, args, test_cpuid_prop);
}
static void test_plus_minus(void)
{
char *path;
/* Rules:
* 1)"-foo" overrides "+foo"
* 2) "[+-]foo" overrides "foo=..."
* 3) Old feature names with underscores (e.g. "sse4_2")
* should keep working
*
* Note: rules 1 and 2 are planned to be removed soon, but we
* need to keep compatibility for a while until we start
* warning users about it.
*/
qtest_start("-cpu pentium,-fpu,+fpu,-mce,mce=on,+cx8,cx8=off,+sse4_1,sse4_2=on");
path = get_cpu0_qom_path();
g_assert_false(qom_get_bool(path, "fpu"));
g_assert_false(qom_get_bool(path, "mce"));
g_assert_true(qom_get_bool(path, "cx8"));
/* Test both the original and the alias feature names: */
g_assert_true(qom_get_bool(path, "sse4-1"));
g_assert_true(qom_get_bool(path, "sse4.1"));
g_assert_true(qom_get_bool(path, "sse4-2"));
g_assert_true(qom_get_bool(path, "sse4.2"));
qtest_end();
g_free(path);
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
qtest_add_func("x86/cpuid/parsing-plus-minus", test_plus_minus);
/* Original level values for CPU models: */
add_cpuid_test("x86/cpuid/phenom/level",
"-cpu phenom", "level", 5);