diff --git a/tests/check-qjson.c b/tests/check-qjson.c
index dd080a8024..aab4e0a86d 100644
--- a/tests/check-qjson.c
+++ b/tests/check-qjson.c
@@ -884,19 +884,15 @@ static void simple_number(void)
     };
 
     for (i = 0; test_cases[i].encoded; i++) {
-        QObject *obj;
         QInt *qint;
 
-        obj = qobject_from_json(test_cases[i].encoded);
-        g_assert(obj != NULL);
-        g_assert(qobject_type(obj) == QTYPE_QINT);
-
-        qint = qobject_to_qint(obj);
+        qint = qobject_to_qint(qobject_from_json(test_cases[i].encoded));
+        g_assert(qint);
         g_assert(qint_get_int(qint) == test_cases[i].decoded);
         if (test_cases[i].skip == 0) {
             QString *str;
 
-            str = qobject_to_json(obj);
+            str = qobject_to_json(QOBJECT(qint));
             g_assert(strcmp(qstring_get_str(str), test_cases[i].encoded) == 0);
             QDECREF(str);
         }
@@ -952,22 +948,12 @@ static void vararg_number(void)
     long long value_ll = 0x2342342343LL;
     double valuef = 2.323423423;
 
-    obj = qobject_from_jsonf("%d", value);
-    g_assert(obj != NULL);
-    g_assert(qobject_type(obj) == QTYPE_QINT);
-
-    qint = qobject_to_qint(obj);
+    qint = qobject_to_qint(qobject_from_jsonf("%d", value));
     g_assert(qint_get_int(qint) == value);
-
     QDECREF(qint);
 
-    obj = qobject_from_jsonf("%lld", value_ll);
-    g_assert(obj != NULL);
-    g_assert(qobject_type(obj) == QTYPE_QINT);
-
-    qint = qobject_to_qint(obj);
+    qint = qobject_to_qint(qobject_from_jsonf("%lld", value_ll));
     g_assert(qint_get_int(qint) == value_ll);
-
     QDECREF(qint);
 
     obj = qobject_from_jsonf("%f", valuef);
diff --git a/tests/test-qobject-output-visitor.c b/tests/test-qobject-output-visitor.c
index 3e34aa5783..50b807e1ab 100644
--- a/tests/test-qobject-output-visitor.c
+++ b/tests/test-qobject-output-visitor.c
@@ -58,13 +58,13 @@ static void test_visitor_out_int(TestOutputVisitorData *data,
                                  const void *unused)
 {
     int64_t value = -42;
-    QObject *obj;
+    QInt *qint;
 
     visit_type_int(data->ov, NULL, &value, &error_abort);
 
-    obj = visitor_get(data);
-    g_assert(qobject_type(obj) == QTYPE_QINT);
-    g_assert_cmpint(qint_get_int(qobject_to_qint(obj)), ==, value);
+    qint = qobject_to_qint(visitor_get(data));
+    g_assert(qint);
+    g_assert_cmpint(qint_get_int(qint), ==, value);
 }
 
 static void test_visitor_out_bool(TestOutputVisitorData *data,
@@ -335,13 +335,12 @@ static void test_visitor_out_any(TestOutputVisitorData *data,
     QBool *qbool;
     QString *qstring;
     QDict *qdict;
-    QObject *obj;
 
     qobj = QOBJECT(qint_from_int(-42));
     visit_type_any(data->ov, NULL, &qobj, &error_abort);
-    obj = visitor_get(data);
-    g_assert(qobject_type(obj) == QTYPE_QINT);
-    g_assert_cmpint(qint_get_int(qobject_to_qint(obj)), ==, -42);
+    qint = qobject_to_qint(visitor_get(data));
+    g_assert(qint);
+    g_assert_cmpint(qint_get_int(qint), ==, -42);
     qobject_decref(qobj);
 
     visitor_reset(data);
@@ -354,9 +353,7 @@ static void test_visitor_out_any(TestOutputVisitorData *data,
     qobject_decref(qobj);
     qdict = qobject_to_qdict(visitor_get(data));
     g_assert(qdict);
-    qobj = qdict_get(qdict, "integer");
-    g_assert(qobj);
-    qint = qobject_to_qint(qobj);
+    qint = qobject_to_qint(qdict_get(qdict, "integer"));
     g_assert(qint);
     g_assert_cmpint(qint_get_int(qint), ==, -42);
     qobj = qdict_get(qdict, "boolean");
@@ -394,8 +391,8 @@ static void test_visitor_out_union_flat(TestOutputVisitorData *data,
 static void test_visitor_out_alternate(TestOutputVisitorData *data,
                                        const void *unused)
 {
-    QObject *arg;
     UserDefAlternate *tmp;
+    QInt *qint;
     QString *qstr;
     QDict *qdict;
 
@@ -404,10 +401,9 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data,
     tmp->u.i = 42;
 
     visit_type_UserDefAlternate(data->ov, NULL, &tmp, &error_abort);
-    arg = visitor_get(data);
-
-    g_assert(qobject_type(arg) == QTYPE_QINT);
-    g_assert_cmpint(qint_get_int(qobject_to_qint(arg)), ==, 42);
+    qint = qobject_to_qint(visitor_get(data));
+    g_assert(qint);
+    g_assert_cmpint(qint_get_int(qint), ==, 42);
 
     qapi_free_UserDefAlternate(tmp);