Introduce Virtio-loopback epsilon release:

Epsilon release introduces a new compatibility layer which make virtio-loopback
design to work with QEMU and rust-vmm vhost-user backend without require any
changes.

Signed-off-by: Timos Ampelikiotis <t.ampelikiotis@virtualopensystems.com>
Change-Id: I52e57563e08a7d0bdc002f8e928ee61ba0c53dd9

1 files changed, 213 insertions, 0 deletions

diff --git a/tests/unit/test-clone-visitor.c b/tests/unit/test-clone-visitor.c
new file mode 100644
index 000000000..5d48e125b
--- /dev/null
+++ b/tests/unit/test-clone-visitor.c
@@ -0,0 +1,213 @@
+/*
+ * QAPI Clone Visitor unit-tests.
+ *
+ * Copyright (C) 2016 Red Hat Inc.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+
+#include "qemu-common.h"
+#include "qapi/clone-visitor.h"
+#include "test-qapi-visit.h"
+
+static void test_clone_struct(void)
+{
+    UserDefOne *src, *dst;
+
+    src = g_new0(UserDefOne, 1);
+    src->integer = 42;
+    src->string = g_strdup("Hello");
+    src->has_enum1 = false;
+    src->enum1 = ENUM_ONE_VALUE2;
+
+    dst = QAPI_CLONE(UserDefOne, src);
+    g_assert(dst);
+    g_assert_cmpint(dst->integer, ==, 42);
+    g_assert(dst->string != src->string);
+    g_assert_cmpstr(dst->string, ==, "Hello");
+    g_assert_cmpint(dst->has_enum1, ==, false);
+    /* Our implementation does this, but it is not required:
+    g_assert_cmpint(dst->enum1, ==, ENUM_ONE_VALUE2);
+    */
+
+    qapi_free_UserDefOne(src);
+    qapi_free_UserDefOne(dst);
+}
+
+static void test_clone_alternate(void)
+{
+    AltEnumBool *b_src, *s_src, *b_dst, *s_dst;
+
+    b_src = g_new0(AltEnumBool, 1);
+    b_src->type = QTYPE_QBOOL;
+    b_src->u.b = true;
+    s_src = g_new0(AltEnumBool, 1);
+    s_src->type = QTYPE_QSTRING;
+    s_src->u.e = ENUM_ONE_VALUE1;
+
+    b_dst = QAPI_CLONE(AltEnumBool, b_src);
+    g_assert(b_dst);
+    g_assert_cmpint(b_dst->type, ==, b_src->type);
+    g_assert_cmpint(b_dst->u.b, ==, b_src->u.b);
+    s_dst = QAPI_CLONE(AltEnumBool, s_src);
+    g_assert(s_dst);
+    g_assert_cmpint(s_dst->type, ==, s_src->type);
+    g_assert_cmpint(s_dst->u.e, ==, s_src->u.e);
+
+    qapi_free_AltEnumBool(b_src);
+    qapi_free_AltEnumBool(s_src);
+    qapi_free_AltEnumBool(b_dst);
+    qapi_free_AltEnumBool(s_dst);
+}
+
+static void test_clone_list(void)
+{
+    uint8List *src = NULL, *dst;
+    uint8List *tmp = NULL;
+    int i;
+
+    /* Build list in reverse */
+    for (i = 10; i; i--) {
+        QAPI_LIST_PREPEND(src, i);
+    }
+
+    dst = QAPI_CLONE(uint8List, src);
+    for (tmp = dst, i = 1; i <= 10; i++) {
+        g_assert(tmp);
+        g_assert_cmpint(tmp->value, ==, i);
+        tmp = tmp->next;
+    }
+    g_assert(!tmp);
+
+    qapi_free_uint8List(src);
+    qapi_free_uint8List(dst);
+}
+
+static void test_clone_empty(void)
+{
+    Empty2 *src, *dst;
+
+    src = g_new0(Empty2, 1);
+    dst = QAPI_CLONE(Empty2, src);
+    g_assert(dst);
+    qapi_free_Empty2(src);
+    qapi_free_Empty2(dst);
+}
+
+static void test_clone_complex1(void)
+{
+    UserDefFlatUnion *src, *dst;
+
+    src = g_new0(UserDefFlatUnion, 1);
+    src->integer = 123;
+    src->string = g_strdup("abc");
+    src->enum1 = ENUM_ONE_VALUE1;
+    src->u.value1.boolean = true;
+
+    dst = QAPI_CLONE(UserDefFlatUnion, src);
+    g_assert(dst);
+
+    g_assert_cmpint(dst->integer, ==, 123);
+    g_assert_cmpstr(dst->string, ==, "abc");
+    g_assert_cmpint(dst->enum1, ==, ENUM_ONE_VALUE1);
+    g_assert(dst->u.value1.boolean);
+    g_assert(!dst->u.value1.has_a_b);
+    g_assert_cmpint(dst->u.value1.a_b, ==, 0);
+
+    qapi_free_UserDefFlatUnion(src);
+    qapi_free_UserDefFlatUnion(dst);
+}
+
+static void test_clone_complex2(void)
+{
+    WrapAlternate *src, *dst;
+
+    src = g_new0(WrapAlternate, 1);
+    src->alt = g_new(UserDefAlternate, 1);
+    src->alt->type = QTYPE_QDICT;
+    src->alt->u.udfu.integer = 42;
+    /* Clone intentionally converts NULL into "" for strings */
+    src->alt->u.udfu.string = NULL;
+    src->alt->u.udfu.enum1 = ENUM_ONE_VALUE3;
+    src->alt->u.udfu.u.value3.intb = 99;
+    src->alt->u.udfu.u.value3.has_a_b = true;
+    src->alt->u.udfu.u.value3.a_b = true;
+
+    dst = QAPI_CLONE(WrapAlternate, src);
+    g_assert(dst);
+    g_assert(dst->alt);
+    g_assert_cmpint(dst->alt->type, ==, QTYPE_QDICT);
+    g_assert_cmpint(dst->alt->u.udfu.integer, ==, 42);
+    g_assert_cmpstr(dst->alt->u.udfu.string, ==, "");
+    g_assert_cmpint(dst->alt->u.udfu.enum1, ==, ENUM_ONE_VALUE3);
+    g_assert_cmpint(dst->alt->u.udfu.u.value3.intb, ==, 99);
+    g_assert_cmpint(dst->alt->u.udfu.u.value3.has_a_b, ==, true);
+    g_assert_cmpint(dst->alt->u.udfu.u.value3.a_b, ==, true);
+
+    qapi_free_WrapAlternate(src);
+    qapi_free_WrapAlternate(dst);
+}
+
+static void test_clone_complex3(void)
+{
+    UserDefOneList *src, *dst, *tail;
+    UserDefOne *elt;
+
+    src = NULL;
+    elt = g_new0(UserDefOne, 1);
+    elt->integer = 3;
+    elt->string = g_strdup("three");
+    elt->has_enum1 = true;
+    elt->enum1 = ENUM_ONE_VALUE3;
+    QAPI_LIST_PREPEND(src, elt);
+    elt = g_new0(UserDefOne, 1);
+    elt->integer = 2;
+    elt->string = g_strdup("two");
+    QAPI_LIST_PREPEND(src, elt);
+    elt = g_new0(UserDefOne, 1);
+    elt->integer = 1;
+    elt->string = g_strdup("one");
+    QAPI_LIST_PREPEND(src, elt);
+
+    dst = QAPI_CLONE(UserDefOneList, src);
+
+    g_assert(dst);
+    tail = dst;
+    elt = tail->value;
+    g_assert_cmpint(elt->integer, ==, 1);
+    g_assert_cmpstr(elt->string, ==, "one");
+    g_assert(!elt->has_enum1);
+    tail = tail->next;
+    elt = tail->value;
+    g_assert_cmpint(elt->integer, ==, 2);
+    g_assert_cmpstr(elt->string, ==, "two");
+    g_assert(!elt->has_enum1);
+    tail = tail->next;
+    elt = tail->value;
+    g_assert_cmpint(elt->integer, ==, 3);
+    g_assert_cmpstr(elt->string, ==, "three");
+    g_assert(elt->has_enum1);
+    g_assert_cmpint(elt->enum1, ==, ENUM_ONE_VALUE3);
+    g_assert(!tail->next);
+
+    qapi_free_UserDefOneList(src);
+    qapi_free_UserDefOneList(dst);
+}
+
+int main(int argc, char **argv)
+{
+    g_test_init(&argc, &argv, NULL);
+
+    g_test_add_func("/visitor/clone/struct", test_clone_struct);
+    g_test_add_func("/visitor/clone/alternate", test_clone_alternate);
+    g_test_add_func("/visitor/clone/list", test_clone_list);
+    g_test_add_func("/visitor/clone/empty", test_clone_empty);
+    g_test_add_func("/visitor/clone/complex1", test_clone_complex1);
+    g_test_add_func("/visitor/clone/complex2", test_clone_complex2);
+    g_test_add_func("/visitor/clone/complex3", test_clone_complex3);
+
+    return g_test_run();
+}