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add loop check in json deep copy #457

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This commit is contained in:
allen
2019-08-12 11:17:25 +08:00
parent a1f297aa83
commit 63fb81faa5
4 changed files with 109 additions and 17 deletions
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53
test/suites/api/test_copy.c
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@@ -323,6 +323,58 @@ static void test_deep_copy_object(void)
json_decref(copy);
}
static void test_deep_copy_circular_references(void)
{
/* Construct a JSON object/array with a circular reference:
object: {"a": {"b": {"c": <circular reference to $.a>}}}
array: [[[<circular reference to the $[0] array>]]]
Deep copy it, remove the circular reference and deep copy again.
*/
json_t *json;
json_t *copy;
json = json_object();
json_object_set_new(json, "a", json_object());
json_object_set_new(json_object_get(json, "a"), "b", json_object());
json_object_set(json_object_get(json_object_get(json, "a"), "b"), "c",
json_object_get(json, "a"));
copy = json_deep_copy(json);
if(copy)
fail("json_deep_copy copied a circular reference!");
json_object_del(json_object_get(json_object_get(json, "a"), "b"), "c");
copy = json_deep_copy(json);
if(!copy)
fail("json_deep_copy failed!");
json_decref(copy);
json_decref(json);
json = json_array();
json_array_append_new(json, json_array());
json_array_append_new(json_array_get(json, 0), json_array());
json_array_append(json_array_get(json_array_get(json, 0), 0),
json_array_get(json, 0));
copy = json_deep_copy(json);
if(copy)
fail("json_deep_copy copied a circular reference!");
json_array_remove(json_array_get(json_array_get(json, 0), 0), 0);
copy = json_deep_copy(json);
if(!copy)
fail("json_deep_copy failed!");
json_decref(copy);
json_decref(json);
}
static void run_tests()
{
test_copy_simple();
@@ -331,4 +383,5 @@ static void run_tests()
test_deep_copy_array();
test_copy_object();
test_deep_copy_object();
test_deep_copy_circular_references();
}