tests: Factor out common code in qapi output tests

Create a new visitor_get() function to capture common
actions taken in collecting output from an output visitor,
to make it easier to refactor the output visitors in a
later patch.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <1465490926-28625-12-git-send-email-eblake@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

tests/test-qmp-output-visitor.c

@@ -23,6 +23,7 @@
 typedef struct TestOutputVisitorData {
     QmpOutputVisitor *qov;
     Visitor *ov;
+    QObject *obj;
 } TestOutputVisitorData;
 
 static void visitor_output_setup(TestOutputVisitorData *data,
@@ -41,6 +42,15 @@ static void visitor_output_teardown(TestOutputVisitorData *data,
     visit_free(data->ov);
     data->qov = NULL;
     data->ov = NULL;
+    qobject_decref(data->obj);
+    data->obj = NULL;
+}
+
+static QObject *visitor_get(TestOutputVisitorData *data)
+{
+    data->obj = qmp_output_get_qobject(data->qov);
+    g_assert(data->obj);
+    return data->obj;
 }
 
 static void visitor_reset(TestOutputVisitorData *data)
@@ -57,12 +67,9 @@ static void test_visitor_out_int(TestOutputVisitorData *data,
 
     visit_type_int(data->ov, NULL, &value, &error_abort);
 
-    obj = qmp_output_get_qobject(data->qov);
-    g_assert(obj != NULL);
+    obj = visitor_get(data);
     g_assert(qobject_type(obj) == QTYPE_QINT);
     g_assert_cmpint(qint_get_int(qobject_to_qint(obj)), ==, value);
-
-    qobject_decref(obj);
 }
 
 static void test_visitor_out_bool(TestOutputVisitorData *data,
@@ -73,12 +80,9 @@ static void test_visitor_out_bool(TestOutputVisitorData *data,
 
     visit_type_bool(data->ov, NULL, &value, &error_abort);
 
-    obj = qmp_output_get_qobject(data->qov);
-    g_assert(obj != NULL);
+    obj = visitor_get(data);
     g_assert(qobject_type(obj) == QTYPE_QBOOL);
     g_assert(qbool_get_bool(qobject_to_qbool(obj)) == value);
-
-    qobject_decref(obj);
 }
 
 static void test_visitor_out_number(TestOutputVisitorData *data,
@@ -89,12 +93,9 @@ static void test_visitor_out_number(TestOutputVisitorData *data,
 
     visit_type_number(data->ov, NULL, &value, &error_abort);
 
-    obj = qmp_output_get_qobject(data->qov);
-    g_assert(obj != NULL);
+    obj = visitor_get(data);
     g_assert(qobject_type(obj) == QTYPE_QFLOAT);
     g_assert(qfloat_get_double(qobject_to_qfloat(obj)) == value);
-
-    qobject_decref(obj);
 }
 
 static void test_visitor_out_string(TestOutputVisitorData *data,
@@ -105,12 +106,9 @@ static void test_visitor_out_string(TestOutputVisitorData *data,
 
     visit_type_str(data->ov, NULL, &string, &error_abort);
 
-    obj = qmp_output_get_qobject(data->qov);
-    g_assert(obj != NULL);
+    obj = visitor_get(data);
     g_assert(qobject_type(obj) == QTYPE_QSTRING);
     g_assert_cmpstr(qstring_get_str(qobject_to_qstring(obj)), ==, string);
-
-    qobject_decref(obj);
 }
 
 static void test_visitor_out_no_string(TestOutputVisitorData *data,
@@ -122,12 +120,9 @@ static void test_visitor_out_no_string(TestOutputVisitorData *data,
     /* A null string should return "" */
     visit_type_str(data->ov, NULL, &string, &error_abort);
 
-    obj = qmp_output_get_qobject(data->qov);
-    g_assert(obj != NULL);
+    obj = visitor_get(data);
     g_assert(qobject_type(obj) == QTYPE_QSTRING);
     g_assert_cmpstr(qstring_get_str(qobject_to_qstring(obj)), ==, "");
-
-    qobject_decref(obj);
 }
 
 static void test_visitor_out_enum(TestOutputVisitorData *data,
@@ -139,12 +134,10 @@ static void test_visitor_out_enum(TestOutputVisitorData *data,
     for (i = 0; i < ENUM_ONE__MAX; i++) {
         visit_type_EnumOne(data->ov, "unused", &i, &error_abort);
 
-        obj = qmp_output_get_qobject(data->qov);
-        g_assert(obj != NULL);
+        obj = visitor_get(data);
         g_assert(qobject_type(obj) == QTYPE_QSTRING);
         g_assert_cmpstr(qstring_get_str(qobject_to_qstring(obj)), ==,
                         EnumOne_lookup[i]);
-        qobject_decref(obj);
         visitor_reset(data);
     }
 }
@@ -177,8 +170,7 @@ static void test_visitor_out_struct(TestOutputVisitorData *data,
 
     visit_type_TestStruct(data->ov, NULL, &p, &error_abort);
 
-    obj = qmp_output_get_qobject(data->qov);
-    g_assert(obj != NULL);
+    obj = visitor_get(data);
     g_assert(qobject_type(obj) == QTYPE_QDICT);
 
     qdict = qobject_to_qdict(obj);
@@ -186,8 +178,6 @@ static void test_visitor_out_struct(TestOutputVisitorData *data,
     g_assert_cmpint(qdict_get_int(qdict, "integer"), ==, 42);
     g_assert_cmpint(qdict_get_bool(qdict, "boolean"), ==, false);
     g_assert_cmpstr(qdict_get_str(qdict, "string"), ==, "foo");
-
-    QDECREF(qdict);
 }
 
 static void test_visitor_out_struct_nested(TestOutputVisitorData *data,
@@ -222,8 +212,7 @@ static void test_visitor_out_struct_nested(TestOutputVisitorData *data,
 
     visit_type_UserDefTwo(data->ov, "unused", &ud2, &error_abort);
 
-    obj = qmp_output_get_qobject(data->qov);
-    g_assert(obj != NULL);
+    obj = visitor_get(data);
     g_assert(qobject_type(obj) == QTYPE_QDICT);
 
     qdict = qobject_to_qdict(obj);
@@ -250,7 +239,6 @@ static void test_visitor_out_struct_nested(TestOutputVisitorData *data,
     g_assert_cmpint(qdict_get_int(userdef, "integer"), ==, value);
     g_assert_cmpstr(qdict_get_str(userdef, "string"), ==, string);
 
-    QDECREF(qdict);
     qapi_free_UserDefTwo(ud2);
 }
 
@@ -302,8 +290,7 @@ static void test_visitor_out_list(TestOutputVisitorData *data,
 
     visit_type_TestStructList(data->ov, NULL, &head, &error_abort);
 
-    obj = qmp_output_get_qobject(data->qov);
-    g_assert(obj != NULL);
+    obj = visitor_get(data);
     g_assert(qobject_type(obj) == QTYPE_QLIST);
 
     qlist = qobject_to_qlist(obj);
@@ -324,7 +311,6 @@ static void test_visitor_out_list(TestOutputVisitorData *data,
     }
     g_assert_cmpint(i, ==, max_items);
 
-    QDECREF(qlist);
     qapi_free_TestStructList(head);
 }
 
@@ -368,11 +354,9 @@ static void test_visitor_out_any(TestOutputVisitorData *data,
 
     qobj = QOBJECT(qint_from_int(-42));
     visit_type_any(data->ov, NULL, &qobj, &error_abort);
-    obj = qmp_output_get_qobject(data->qov);
-    g_assert(obj != NULL);
+    obj = visitor_get(data);
     g_assert(qobject_type(obj) == QTYPE_QINT);
     g_assert_cmpint(qint_get_int(qobject_to_qint(obj)), ==, -42);
-    qobject_decref(obj);
     qobject_decref(qobj);
 
     visitor_reset(data);
@@ -383,8 +367,7 @@ static void test_visitor_out_any(TestOutputVisitorData *data,
     qobj = QOBJECT(qdict);
     visit_type_any(data->ov, NULL, &qobj, &error_abort);
     qobject_decref(qobj);
-    obj = qmp_output_get_qobject(data->qov);
-    g_assert(obj != NULL);
+    obj = visitor_get(data);
     qdict = qobject_to_qdict(obj);
     g_assert(qdict);
     qobj = qdict_get(qdict, "integer");
@@ -402,7 +385,6 @@ static void test_visitor_out_any(TestOutputVisitorData *data,
     qstring = qobject_to_qstring(qobj);
     g_assert(qstring);
     g_assert_cmpstr(qstring_get_str(qstring), ==, "foo");
-    qobject_decref(obj);
 }
 
 static void test_visitor_out_union_flat(TestOutputVisitorData *data,
@@ -418,7 +400,7 @@ static void test_visitor_out_union_flat(TestOutputVisitorData *data,
     tmp->u.value1.boolean = true;
 
     visit_type_UserDefFlatUnion(data->ov, NULL, &tmp, &error_abort);
-    arg = qmp_output_get_qobject(data->qov);
+    arg = visitor_get(data);
 
     g_assert(qobject_type(arg) == QTYPE_QDICT);
     qdict = qobject_to_qdict(arg);
@@ -429,7 +411,6 @@ static void test_visitor_out_union_flat(TestOutputVisitorData *data,
     g_assert_cmpint(qdict_get_bool(qdict, "boolean"), ==, true);
 
     qapi_free_UserDefFlatUnion(tmp);
-    QDECREF(qdict);
 }
 
 static void test_visitor_out_alternate(TestOutputVisitorData *data,
@@ -444,13 +425,12 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data,
     tmp->u.i = 42;
 
     visit_type_UserDefAlternate(data->ov, NULL, &tmp, &error_abort);
-    arg = qmp_output_get_qobject(data->qov);
+    arg = visitor_get(data);
 
     g_assert(qobject_type(arg) == QTYPE_QINT);
     g_assert_cmpint(qint_get_int(qobject_to_qint(arg)), ==, 42);
 
     qapi_free_UserDefAlternate(tmp);
-    qobject_decref(arg);
 
     visitor_reset(data);
     tmp = g_new0(UserDefAlternate, 1);
@@ -458,13 +438,12 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data,
     tmp->u.s = g_strdup("hello");
 
     visit_type_UserDefAlternate(data->ov, NULL, &tmp, &error_abort);
-    arg = qmp_output_get_qobject(data->qov);
+    arg = visitor_get(data);
 
     g_assert(qobject_type(arg) == QTYPE_QSTRING);
     g_assert_cmpstr(qstring_get_str(qobject_to_qstring(arg)), ==, "hello");
 
     qapi_free_UserDefAlternate(tmp);
-    qobject_decref(arg);
 
     visitor_reset(data);
     tmp = g_new0(UserDefAlternate, 1);
@@ -475,7 +454,7 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data,
     tmp->u.udfu.u.value1.boolean = true;
 
     visit_type_UserDefAlternate(data->ov, NULL, &tmp, &error_abort);
-    arg = qmp_output_get_qobject(data->qov);
+    arg = visitor_get(data);
 
     g_assert_cmpint(qobject_type(arg), ==, QTYPE_QDICT);
     qdict = qobject_to_qdict(arg);
@@ -486,7 +465,6 @@ static void test_visitor_out_alternate(TestOutputVisitorData *data,
     g_assert_cmpint(qdict_get_bool(qdict, "boolean"), ==, true);
 
     qapi_free_UserDefAlternate(tmp);
-    qobject_decref(arg);
 }
 
 static void test_visitor_out_null(TestOutputVisitorData *data,
@@ -500,14 +478,13 @@ static void test_visitor_out_null(TestOutputVisitorData *data,
     visit_type_null(data->ov, "a", &error_abort);
     visit_check_struct(data->ov, &error_abort);
     visit_end_struct(data->ov, NULL);
-    arg = qmp_output_get_qobject(data->qov);
+    arg = visitor_get(data);
     g_assert(qobject_type(arg) == QTYPE_QDICT);
     qdict = qobject_to_qdict(arg);
     g_assert_cmpint(qdict_size(qdict), ==, 1);
     nil = qdict_get(qdict, "a");
     g_assert(nil);
     g_assert(qobject_type(nil) == QTYPE_QNULL);
-    qobject_decref(arg);
 }
 
 static void init_native_list(UserDefNativeListUnion *cvalue)
@@ -738,10 +715,9 @@ static void test_native_list(TestOutputVisitorData *data,
 
     visit_type_UserDefNativeListUnion(data->ov, NULL, &cvalue, &error_abort);
 
-    obj = qmp_output_get_qobject(data->qov);
+    obj = visitor_get(data);
     check_native_list(obj, cvalue->type);
     qapi_free_UserDefNativeListUnion(cvalue);
-    qobject_decref(obj);
 }
 
 static void test_visitor_out_native_list_int(TestOutputVisitorData *data,

tests/test-string-output-visitor.c

@@ -22,6 +22,7 @@
 typedef struct TestOutputVisitorData {
     StringOutputVisitor *sov;
     Visitor *ov;
+    char *str;
     bool human;
 } TestOutputVisitorData;
 
@@ -53,6 +54,15 @@ static void visitor_output_teardown(TestOutputVisitorData *data,
     visit_free(data->ov);
     data->sov = NULL;
     data->ov = NULL;
+    g_free(data->str);
+    data->str = NULL;
+}
+
+static char *visitor_get(TestOutputVisitorData *data)
+{
+    data->str = string_output_get_string(data->sov);
+    g_assert(data->str);
+    return data->str;
 }
 
 static void visitor_reset(TestOutputVisitorData *data)
@@ -73,14 +83,12 @@ static void test_visitor_out_int(TestOutputVisitorData *data,
     visit_type_int(data->ov, NULL, &value, &err);
     g_assert(!err);
 
-    str = string_output_get_string(data->sov);
-    g_assert(str != NULL);
+    str = visitor_get(data);
     if (data->human) {
         g_assert_cmpstr(str, ==, "42 (0x2a)");
     } else {
         g_assert_cmpstr(str, ==, "42");
     }
-    g_free(str);
 }
 
 static void test_visitor_out_intList(TestOutputVisitorData *data,
@@ -102,8 +110,7 @@ static void test_visitor_out_intList(TestOutputVisitorData *data,
     visit_type_intList(data->ov, NULL, &list, &err);
     g_assert(err == NULL);
 
-    str = string_output_get_string(data->sov);
-    g_assert(str != NULL);
+    str = visitor_get(data);
     if (data->human) {
         g_assert_cmpstr(str, ==,
             "0-1,3-6,9-16,21-22,9223372036854775806-9223372036854775807 "
@@ -113,7 +120,6 @@ static void test_visitor_out_intList(TestOutputVisitorData *data,
         g_assert_cmpstr(str, ==,
             "0-1,3-6,9-16,21-22,9223372036854775806-9223372036854775807");
     }
-    g_free(str);
     qapi_free_intList(list);
 }
 
@@ -127,10 +133,8 @@ static void test_visitor_out_bool(TestOutputVisitorData *data,
     visit_type_bool(data->ov, NULL, &value, &err);
     g_assert(!err);
 
-    str = string_output_get_string(data->sov);
-    g_assert(str != NULL);
+    str = visitor_get(data);
     g_assert_cmpstr(str, ==, "true");
-    g_free(str);
 }
 
 static void test_visitor_out_number(TestOutputVisitorData *data,
@@ -143,10 +147,8 @@ static void test_visitor_out_number(TestOutputVisitorData *data,
     visit_type_number(data->ov, NULL, &value, &err);
     g_assert(!err);
 
-    str = string_output_get_string(data->sov);
-    g_assert(str != NULL);
+    str = visitor_get(data);
     g_assert_cmpstr(str, ==, "3.140000");
-    g_free(str);
 }
 
 static void test_visitor_out_string(TestOutputVisitorData *data,
@@ -160,14 +162,12 @@ static void test_visitor_out_string(TestOutputVisitorData *data,
     visit_type_str(data->ov, NULL, &string, &err);
     g_assert(!err);
 
-    str = string_output_get_string(data->sov);
-    g_assert(str != NULL);
+    str = visitor_get(data);
     if (data->human) {
         g_assert_cmpstr(str, ==, string_human);
     } else {
         g_assert_cmpstr(str, ==, string);
     }
-    g_free(str);
 }
 
 static void test_visitor_out_no_string(TestOutputVisitorData *data,
@@ -179,14 +179,12 @@ static void test_visitor_out_no_string(TestOutputVisitorData *data,
     /* A null string should return "" */
     visit_type_str(data->ov, NULL, &string, &error_abort);
 
-    str = string_output_get_string(data->sov);
-    g_assert(str != NULL);
+    str = visitor_get(data);
     if (data->human) {
         g_assert_cmpstr(str, ==, "<null>");
     } else {
         g_assert_cmpstr(str, ==, "");
     }
-    g_free(str);
 }
 
 static void test_visitor_out_enum(TestOutputVisitorData *data,
@@ -198,8 +196,7 @@ static void test_visitor_out_enum(TestOutputVisitorData *data,
     for (i = 0; i < ENUM_ONE__MAX; i++) {
         visit_type_EnumOne(data->ov, "unused", &i, &error_abort);
 
-        str = string_output_get_string(data->sov);
-        g_assert(str != NULL);
+        str = visitor_get(data);
         if (data->human) {
             char *str_human = g_strdup_printf("\"%s\"", EnumOne_lookup[i]);
 
@@ -208,7 +205,6 @@ static void test_visitor_out_enum(TestOutputVisitorData *data,
         } else {
             g_assert_cmpstr(str, ==, EnumOne_lookup[i]);
         }
-        g_free(str);
         visitor_reset(data);
     }
 }