test-throttle: test read only and write only

Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Hanna Czenczek <hreitz@redhat.com>
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
Message-Id: <20230728022006.1098509-5-pizhenwei@bytedance.com>
Signed-off-by: Hanna Czenczek <hreitz@redhat.com>

tests/unit/test-throttle.c

@@ -184,6 +184,70 @@ static void test_init(void)
     throttle_timers_destroy(tt);
 }
 
+static void test_init_readonly(void)
+{
+    int i;
+
+    tt = &tgm.throttle_timers;
+
+    /* fill the structures with crap */
+    memset(&ts, 1, sizeof(ts));
+    memset(tt, 1, sizeof(*tt));
+
+    /* init structures */
+    throttle_init(&ts);
+    throttle_timers_init(tt, ctx, QEMU_CLOCK_VIRTUAL,
+                         read_timer_cb, NULL, &ts);
+
+    /* check initialized fields */
+    g_assert(tt->clock_type == QEMU_CLOCK_VIRTUAL);
+    g_assert(tt->timers[THROTTLE_READ]);
+    g_assert(!tt->timers[THROTTLE_WRITE]);
+
+    /* check other fields where cleared */
+    g_assert(!ts.previous_leak);
+    g_assert(!ts.cfg.op_size);
+    for (i = 0; i < BUCKETS_COUNT; i++) {
+        g_assert(!ts.cfg.buckets[i].avg);
+        g_assert(!ts.cfg.buckets[i].max);
+        g_assert(!ts.cfg.buckets[i].level);
+    }
+
+    throttle_timers_destroy(tt);
+}
+
+static void test_init_writeonly(void)
+{
+    int i;
+
+    tt = &tgm.throttle_timers;
+
+    /* fill the structures with crap */
+    memset(&ts, 1, sizeof(ts));
+    memset(tt, 1, sizeof(*tt));
+
+    /* init structures */
+    throttle_init(&ts);
+    throttle_timers_init(tt, ctx, QEMU_CLOCK_VIRTUAL,
+                         NULL, write_timer_cb, &ts);
+
+    /* check initialized fields */
+    g_assert(tt->clock_type == QEMU_CLOCK_VIRTUAL);
+    g_assert(!tt->timers[THROTTLE_READ]);
+    g_assert(tt->timers[THROTTLE_WRITE]);
+
+    /* check other fields where cleared */
+    g_assert(!ts.previous_leak);
+    g_assert(!ts.cfg.op_size);
+    for (i = 0; i < BUCKETS_COUNT; i++) {
+        g_assert(!ts.cfg.buckets[i].avg);
+        g_assert(!ts.cfg.buckets[i].max);
+        g_assert(!ts.cfg.buckets[i].level);
+    }
+
+    throttle_timers_destroy(tt);
+}
+
 static void test_destroy(void)
 {
     int i;
@@ -752,6 +816,8 @@ int main(int argc, char **argv)
     g_test_add_func("/throttle/leak_bucket",        test_leak_bucket);
     g_test_add_func("/throttle/compute_wait",       test_compute_wait);
     g_test_add_func("/throttle/init",               test_init);
+    g_test_add_func("/throttle/init_readonly",      test_init_readonly);
+    g_test_add_func("/throttle/init_writeonly",     test_init_writeonly);
     g_test_add_func("/throttle/destroy",            test_destroy);
     g_test_add_func("/throttle/have_timer",         test_have_timer);
     g_test_add_func("/throttle/detach_attach",      test_detach_attach);