From patchwork Sun Apr 15 07:40:08 2012
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Subject: qtest: add register fuzzing to RTC test
Date: Sat, 14 Apr 2012 21:40:08 -0000
From: Blue Swirl <blauwirbel@gmail.com>
X-Patchwork-Id: 152591
Message-Id: <CAAu8pHvs-j=vgXTijKt=Zcz61=+9vq7=B4Dq38WgUfhOiU4qyg@mail.gmail.com>
To: Anthony Liguori <aliguori@us.ibm.com>,
 Paolo Bonzini <pbonzini@redhat.com>, qemu-devel <qemu-devel@nongnu.org>

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>

---
tests/rtc-test.c |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/tests/rtc-test.c b/tests/rtc-test.c
index 983a980..f23ac3a 100644
--- a/tests/rtc-test.c
+++ b/tests/rtc-test.c
@@ -240,6 +240,22 @@ static void alarm_time(void)
     g_assert(cmos_read(RTC_REG_C) == 0);
 }

+/* success if no crash or abort */
+static void fuzz_registers(void)
+{
+    unsigned int i;
+
+    for (i = 0; i < 1000; i++) {
+        uint8_t reg, val;
+
+        reg = (uint8_t)g_test_rand_int_range(0, 16);
+        val = (uint8_t)g_test_rand_int_range(0, 256);
+
+        cmos_write(reg, val);
+        cmos_read(reg);
+    }
+}
+
 int main(int argc, char **argv)
 {
     QTestState *s = NULL;
@@ -253,6 +269,7 @@ int main(int argc, char **argv)
     qtest_add_func("/rtc/bcd/check-time", bcd_check_time);
     qtest_add_func("/rtc/dec/check-time", dec_check_time);
     qtest_add_func("/rtc/alarm-time", alarm_time);
+    qtest_add_func("/rtc/fuzz-registers", fuzz_registers);
     ret = g_test_run();

     if (s) {