[Qemu-devel] [PATCH v2 11/14] qlit: improve QLit dict vs qdict comparison

[Marc-André Lureau]

Verify that all qdict values are covered.

(a previous iteration of this patch created a copy of qdict to remove
all checked elements, verifying no duplicates exist in the literal
qdict, however this is a programming error, and a size comparison
should be enough)

Signed-off-by: Marc-André Lureau <address@hidden>
---
 qobject/qlit.c     | 37 +++++++++++++++++++++++--------------
 tests/check-qlit.c |  7 +++++++
 2 files changed, 30 insertions(+), 14 deletions(-)

diff --git a/qobject/qlit.c b/qobject/qlit.c
index b1d9146220..dc0015f76c 100644
--- a/qobject/qlit.c
+++ b/qobject/qlit.c
@@ -41,6 +41,27 @@ static void compare_helper(QObject *obj, void *opaque)
         qlit_equal_qobject(&helper->objs[helper->index++], obj);
 }
 
+static bool qlit_equal_qdict(const QLitObject *lhs, const QDict *qdict)
+{
+    int i;
+
+    for (i = 0; lhs->value.qdict[i].key; i++) {
+        QObject *obj = qdict_get(qdict, lhs->value.qdict[i].key);
+
+        if (!qlit_equal_qobject(&lhs->value.qdict[i].value, obj)) {
+            return false;
+        }
+    }
+
+    /* Note: the literal qdict must not contain duplicates, this is
+     * considered a programming error and it isn't checked here. */
+    if (qdict_size(qdict) != i) {
+        return false;
+    }
+
+    return true;
+}
+
 bool qlit_equal_qobject(const QLitObject *lhs, const QObject *rhs)
 {
     if (!rhs || lhs->type != qobject_type(rhs)) {
@@ -55,20 +76,8 @@ bool qlit_equal_qobject(const QLitObject *lhs, const QObject 
*rhs)
     case QTYPE_QSTRING:
         return (strcmp(lhs->value.qstr,
                        qstring_get_str(qobject_to_qstring(rhs))) == 0);
-    case QTYPE_QDICT: {
-        int i;
-
-        for (i = 0; lhs->value.qdict[i].key; i++) {
-            QObject *obj = qdict_get(qobject_to_qdict(rhs),
-                                     lhs->value.qdict[i].key);
-
-            if (!qlit_equal_qobject(&lhs->value.qdict[i].value, obj)) {
-                return false;
-            }
-        }
-
-        return true;
-    }
+    case QTYPE_QDICT:
+        return qlit_equal_qdict(lhs, qobject_to_qdict(rhs));
     case QTYPE_QLIST: {
         QListCompareHelper helper;
 
diff --git a/tests/check-qlit.c b/tests/check-qlit.c
index 47fde92a46..5d9558dfd9 100644
--- a/tests/check-qlit.c
+++ b/tests/check-qlit.c
@@ -28,6 +28,11 @@ static QLitObject qlit = QLIT_QDICT(((QLitDictEntry[]) {
     { },
 }));
 
+static QLitObject qlit_foo = QLIT_QDICT(((QLitDictEntry[]) {
+    { "foo", QLIT_QNUM(42) },
+    { },
+}));
+
 static QObject *make_qobject(void)
 {
     QDict *qdict = qdict_new();
@@ -51,6 +56,8 @@ static void qlit_equal_qobject_test(void)
 
     g_assert(qlit_equal_qobject(&qlit, qobj));
 
+    g_assert(!qlit_equal_qobject(&qlit_foo, qobj));
+
     qobject_decref(qobj);
 }
 
-- 
2.14.1.146.gd35faa819