tests/qtest/qom-test: unit test for qom-list-get

Add a unit test for qom-list-get.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <1752248703-217318-4-git-send-email-steven.sistare@oracle.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

tests/qtest/qom-test.c

@@ -11,11 +11,119 @@
 
 #include "qobject/qdict.h"
 #include "qobject/qlist.h"
+#include "qobject/qstring.h"
 #include "qemu/cutils.h"
 #include "libqtest.h"
 
+#define RAM_NAME "node0"
+#define RAM_SIZE 65536
+
 static int verbosity_level;
 
+/*
+ * Verify that the /object/RAM_NAME 'size' property is RAM_SIZE.
+ */
+static void test_list_get_value(QTestState *qts)
+{
+    QDict *args = qdict_new();
+    g_autoptr(QDict) response = NULL;
+    g_autoptr(QList) paths = qlist_new();
+    QListEntry *entry, *prop_entry;
+    const char *prop_name;
+    QList *properties, *return_list;
+    QDict *obj;
+
+    qlist_append_str(paths, "/objects/" RAM_NAME);
+    qdict_put_obj(args, "paths", QOBJECT(qlist_copy(paths)));
+    response = qtest_qmp(qts, "{ 'execute': 'qom-list-get',"
+                              "  'arguments': %p }", args);
+    g_assert(response);
+    g_assert(qdict_haskey(response, "return"));
+    return_list = qobject_to(QList, qdict_get(response, "return"));
+
+    entry = QTAILQ_FIRST(&return_list->head);
+    obj = qobject_to(QDict, qlist_entry_obj(entry));
+    g_assert(qdict_haskey(obj, "properties"));
+    properties = qobject_to(QList, qdict_get(obj, "properties"));
+
+    QLIST_FOREACH_ENTRY(properties, prop_entry) {
+        QDict *prop = qobject_to(QDict, qlist_entry_obj(prop_entry));
+
+        g_assert(qdict_haskey(prop, "name"));
+        g_assert(qdict_haskey(prop, "value"));
+
+        prop_name = qdict_get_str(prop, "name");
+        if (!strcmp(prop_name, "type")) {
+            g_assert_cmpstr(qdict_get_str(prop, "value"), ==,
+                            "memory-backend-ram");
+
+        } else if (!strcmp(prop_name, "size")) {
+            g_assert_cmpint(qdict_get_int(prop, "value"), ==, RAM_SIZE);
+        }
+    }
+}
+
+static void test_list_get(QTestState *qts, QList *paths)
+{
+    QListEntry *entry, *prop_entry, *path_entry;
+    g_autoptr(QDict) response = NULL;
+    QDict *args = qdict_new();
+    QDict *prop;
+    QList *return_list;
+
+    if (verbosity_level >= 2) {
+        g_test_message("Obtaining properties for paths:");
+        QLIST_FOREACH_ENTRY(paths, path_entry) {
+            QString *qstr = qobject_to(QString, qlist_entry_obj(path_entry));
+            g_test_message("  %s", qstring_get_str(qstr));
+        }
+    }
+
+    qdict_put_obj(args, "paths", QOBJECT(qlist_copy(paths)));
+    response = qtest_qmp(qts, "{ 'execute': 'qom-list-get',"
+                              "  'arguments': %p }", args);
+    g_assert(response);
+    g_assert(qdict_haskey(response, "return"));
+    return_list = qobject_to(QList, qdict_get(response, "return"));
+    g_assert(!qlist_empty(return_list));
+
+    path_entry = QTAILQ_FIRST(&paths->head);
+    QLIST_FOREACH_ENTRY(return_list, entry) {
+        QDict *obj = qobject_to(QDict, qlist_entry_obj(entry));
+        g_assert(qdict_haskey(obj, "properties"));
+        QList *properties = qobject_to(QList, qdict_get(obj, "properties"));
+        bool has_child = false;
+
+        QLIST_FOREACH_ENTRY(properties, prop_entry) {
+            prop = qobject_to(QDict, qlist_entry_obj(prop_entry));
+            g_assert(qdict_haskey(prop, "name"));
+            g_assert(qdict_haskey(prop, "type"));
+            has_child |= strstart(qdict_get_str(prop, "type"), "child<", NULL);
+        }
+
+        if (has_child) {
+            /* build a list of child paths */
+            QString *qstr = qobject_to(QString, qlist_entry_obj(path_entry));
+            const char *path = qstring_get_str(qstr);
+            g_autoptr(QList) child_paths = qlist_new();
+
+            QLIST_FOREACH_ENTRY(properties, prop_entry) {
+                prop = qobject_to(QDict, qlist_entry_obj(prop_entry));
+                if (strstart(qdict_get_str(prop, "type"), "child<", NULL)) {
+                    g_autofree char *child_path = g_strdup_printf(
+                        "%s/%s", path, qdict_get_str(prop, "name"));
+                    qlist_append_str(child_paths, child_path);
+                }
+            }
+
+            /* fetch props for all children with one qom-list-get call */
+            test_list_get(qts, child_paths);
+        }
+
+        path_entry = QTAILQ_NEXT(path_entry, next);
+    }
+}
+
 static void test_properties(QTestState *qts, const char *path, bool recurse)
 {
     char *child_path;
@@ -85,8 +193,10 @@ static void test_machine(gconstpointer data)
     const char *machine = data;
     QDict *response;
     QTestState *qts;
+    g_autoptr(QList) paths = qlist_new();
 
-    qts = qtest_initf("-machine %s", machine);
+    qts = qtest_initf("-machine %s -object memory-backend-ram,id=%s,size=%d",
+                      machine, RAM_NAME, RAM_SIZE);
 
     if (g_test_slow()) {
         /* Make sure we can get the machine class properties: */
@@ -101,6 +211,10 @@ static void test_machine(gconstpointer data)
 
     test_properties(qts, "/machine", true);
 
+    qlist_append_str(paths, "/machine");
+    test_list_get(qts, paths);
+    test_list_get_value(qts);
+
     response = qtest_qmp(qts, "{ 'execute': 'quit' }");
     g_assert(qdict_haskey(response, "return"));
     qobject_unref(response);