Add functions for shallow and deep copying JSON values

[jansson.git] / test / suites / api / test_copy.c

diff --git a/test/suites/api/test_copy.c b/test/suites/api/test_copy.c
new file mode 100644 (file)
index 0000000..9452183
--- /dev/null
+++ b/test/suites/api/test_copy.c
@@ -0,0 +1,319 @@
+/*
+ * Copyright (c) 2009 Petri Lehtinen <petri@digip.org>
+ *
+ * Jansson is free software; you can redistribute it and/or modify
+ * it under the terms of the MIT license. See LICENSE for details.
+ */
+
+#include <string.h>
+#include <jansson.h>
+#include "util.h"
+
+static void test_copy_simple(void)
+{
+    json_t *value, *copy;
+
+    if(json_copy(NULL))
+        fail("copying NULL doesn't return NULL");
+
+    /* true */
+    value = json_true();
+    copy = json_copy(value);
+    if(value != copy)
+        fail("copying true failed");
+    json_decref(value);
+    json_decref(copy);
+
+    /* false */
+    value = json_false();
+    copy = json_copy(value);
+    if(value != copy)
+        fail("copying false failed");
+    json_decref(value);
+    json_decref(copy);
+
+    /* null */
+    value = json_null();
+    copy = json_copy(value);
+    if(value != copy)
+        fail("copying null failed");
+    json_decref(value);
+    json_decref(copy);
+
+    /* string */
+    value = json_string("foo");
+    if(!value)
+        fail("unable to create a string");
+    copy = json_copy(value);
+    if(!copy)
+        fail("unable to copy a string");
+    if(copy == value)
+        fail("copying a string doesn't copy");
+    if(!json_equal(copy, value))
+        fail("copying a string produces an inequal copy");
+    if(value->refcount != 1 || copy->refcount != 1)
+        fail("invalid refcounts");
+    json_decref(value);
+    json_decref(copy);
+
+    /* integer */
+    value = json_integer(543);
+    if(!value)
+        fail("unable to create an integer");
+    copy = json_copy(value);
+    if(!copy)
+        fail("unable to copy an integer");
+    if(copy == value)
+        fail("copying an integer doesn't copy");
+    if(!json_equal(copy, value))
+        fail("copying an integer produces an inequal copy");
+    if(value->refcount != 1 || copy->refcount != 1)
+        fail("invalid refcounts");
+    json_decref(value);
+    json_decref(copy);
+
+    /* real */
+    value = json_real(123e9);
+    if(!value)
+        fail("unable to create a real");
+    copy = json_copy(value);
+    if(!copy)
+        fail("unable to copy a real");
+    if(copy == value)
+        fail("copying a real doesn't copy");
+    if(!json_equal(copy, value))
+        fail("copying a real produces an inequal copy");
+    if(value->refcount != 1 || copy->refcount != 1)
+        fail("invalid refcounts");
+    json_decref(value);
+    json_decref(copy);
+}
+
+static void test_deep_copy_simple(void)
+{
+    json_t *value, *copy;
+
+    if(json_deep_copy(NULL))
+        fail("deep copying NULL doesn't return NULL");
+
+    /* true */
+    value = json_true();
+    copy = json_deep_copy(value);
+    if(value != copy)
+        fail("deep copying true failed");
+    json_decref(value);
+    json_decref(copy);
+
+    /* false */
+    value = json_false();
+    copy = json_deep_copy(value);
+    if(value != copy)
+        fail("deep copying false failed");
+    json_decref(value);
+    json_decref(copy);
+
+    /* null */
+    value = json_null();
+    copy = json_deep_copy(value);
+    if(value != copy)
+        fail("deep copying null failed");
+    json_decref(value);
+    json_decref(copy);
+
+    /* string */
+    value = json_string("foo");
+    if(!value)
+        fail("unable to create a string");
+    copy = json_deep_copy(value);
+    if(!copy)
+        fail("unable to deep copy a string");
+    if(copy == value)
+        fail("deep copying a string doesn't copy");
+    if(!json_equal(copy, value))
+        fail("deep copying a string produces an inequal copy");
+    if(value->refcount != 1 || copy->refcount != 1)
+        fail("invalid refcounts");
+    json_decref(value);
+    json_decref(copy);
+
+    /* integer */
+    value = json_integer(543);
+    if(!value)
+        fail("unable to create an integer");
+    copy = json_deep_copy(value);
+    if(!copy)
+        fail("unable to deep copy an integer");
+    if(copy == value)
+        fail("deep copying an integer doesn't copy");
+    if(!json_equal(copy, value))
+        fail("deep copying an integer produces an inequal copy");
+    if(value->refcount != 1 || copy->refcount != 1)
+        fail("invalid refcounts");
+    json_decref(value);
+    json_decref(copy);
+
+    /* real */
+    value = json_real(123e9);
+    if(!value)
+        fail("unable to create a real");
+    copy = json_deep_copy(value);
+    if(!copy)
+        fail("unable to deep copy a real");
+    if(copy == value)
+        fail("deep copying a real doesn't copy");
+    if(!json_equal(copy, value))
+        fail("deep copying a real produces an inequal copy");
+    if(value->refcount != 1 || copy->refcount != 1)
+        fail("invalid refcounts");
+    json_decref(value);
+    json_decref(copy);
+}
+
+static void test_copy_array(void)
+{
+    const char *json_array_text = "[1, \"foo\", 3.141592, {\"foo\": \"bar\"}]";
+
+    json_t *array, *copy;
+    unsigned int i;
+
+    array = json_loads(json_array_text, NULL);
+    if(!array)
+        fail("unable to parse an array");
+
+    copy = json_copy(array);
+    if(!copy)
+        fail("unable to copy an array");
+    if(copy == array)
+        fail("copying an array doesn't copy");
+    if(!json_equal(copy, array))
+        fail("copying an array produces an inequal copy");
+
+    for(i = 0; i < json_array_size(copy); i++)
+    {
+        if(json_array_get(array, i) != json_array_get(copy, i))
+            fail("copying an array modifies its elements");
+    }
+
+    json_decref(array);
+    json_decref(copy);
+}
+
+static void test_deep_copy_array(void)
+{
+    const char *json_array_text = "[1, \"foo\", 3.141592, {\"foo\": \"bar\"}]";
+
+    json_t *array, *copy;
+    unsigned int i;
+
+    array = json_loads(json_array_text, NULL);
+    if(!array)
+        fail("unable to parse an array");
+
+    copy = json_deep_copy(array);
+    if(!copy)
+        fail("unable to deep copy an array");
+    if(copy == array)
+        fail("deep copying an array doesn't copy");
+    if(!json_equal(copy, array))
+        fail("deep copying an array produces an inequal copy");
+
+    for(i = 0; i < json_array_size(copy); i++)
+    {
+        if(json_array_get(array, i) == json_array_get(copy, i))
+            fail("deep copying an array doesn't copy its elements");
+    }
+
+    json_decref(array);
+    json_decref(copy);
+}
+
+static void test_copy_object(void)
+{
+    const char *json_object_text =
+        "{\"foo\": \"bar\", \"a\": 1, \"b\": 3.141592, \"c\": [1,2,3,4]}";
+
+    json_t *object, *copy;
+    void *iter;
+
+    object = json_loads(json_object_text, NULL);
+    if(!object)
+        fail("unable to parse an object");
+
+    copy = json_copy(object);
+    if(!copy)
+        fail("unable to copy an object");
+    if(copy == object)
+        fail("copying an object doesn't copy");
+    if(!json_equal(copy, object))
+        fail("copying an object produces an inequal copy");
+
+    iter = json_object_iter(object);
+    while(iter)
+    {
+        const char *key;
+        json_t *value1, *value2;
+
+        key = json_object_iter_key(iter);
+        value1 = json_object_iter_value(iter);
+        value2 = json_object_get(copy, key);
+
+        if(value1 != value2)
+            fail("deep copying an object modifies its items");
+
+        iter = json_object_iter_next(object, iter);
+    }
+
+    json_decref(object);
+    json_decref(copy);
+}
+
+static void test_deep_copy_object(void)
+{
+    const char *json_object_text =
+        "{\"foo\": \"bar\", \"a\": 1, \"b\": 3.141592, \"c\": [1,2,3,4]}";
+
+    json_t *object, *copy;
+    void *iter;
+
+    object = json_loads(json_object_text, NULL);
+    if(!object)
+        fail("unable to parse an object");
+
+    copy = json_deep_copy(object);
+    if(!copy)
+        fail("unable to deep copy an object");
+    if(copy == object)
+        fail("deep copying an object doesn't copy");
+    if(!json_equal(copy, object))
+        fail("deep copying an object produces an inequal copy");
+
+    iter = json_object_iter(object);
+    while(iter)
+    {
+        const char *key;
+        json_t *value1, *value2;
+
+        key = json_object_iter_key(iter);
+        value1 = json_object_iter_value(iter);
+        value2 = json_object_get(copy, key);
+
+        if(value1 == value2)
+            fail("deep copying an object doesn't copy its items");
+
+        iter = json_object_iter_next(object, iter);
+    }
+
+    json_decref(object);
+    json_decref(copy);
+}
+
+int main()
+{
+    test_copy_simple();
+    test_deep_copy_simple();
+    test_copy_array();
+    test_deep_copy_array();
+    test_copy_object();
+    test_deep_copy_object();
+    return 0;
+}