serializer/tests/JMS/Serializer/Tests/Serializer/JsonSerializationTest.php

<?php

/*
 * Copyright 2013 Johannes M. Schmitt <schmittjoh@gmail.com>
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

namespace JMS\Serializer\Tests\Serializer;

use JMS\Serializer\Context;
use JMS\Serializer\Exception\RuntimeException;
use JMS\Serializer\EventDispatcher\Event;
use JMS\Serializer\EventDispatcher\EventSubscriberInterface;
use JMS\Serializer\GraphNavigator;
use JMS\Serializer\VisitorInterface;
use JMS\Serializer\Tests\Fixtures\Author;
use JMS\Serializer\Tests\Fixtures\AuthorList;

class JsonSerializationTest extends BaseSerializationTest
{
    protected function getContent($key)
    {
        static $outputs = array();

        if (!$outputs) {
            $outputs['readonly'] = '{"id":123,"full_name":"Ruud Kamphuis"}';
            $outputs['string'] = '"foo"';
            $outputs['boolean_true'] = 'true';
            $outputs['boolean_false'] = 'false';
            $outputs['integer'] = '1';
            $outputs['float'] = '4.533';
            $outputs['float_trailing_zero'] = '1';
            $outputs['simple_object'] = '{"foo":"foo","moo":"bar","camel_case":"boo"}';
            $outputs['circular_reference'] = '{"collection":[{"name":"child1"},{"name":"child2"}],"another_collection":[{"name":"child1"},{"name":"child2"}]}';
            $outputs['array_strings'] = '["foo","bar"]';
            $outputs['array_booleans'] = '[true,false]';
            $outputs['array_integers'] = '[1,3,4]';
            $outputs['array_floats'] = '[1.34,3,6.42]';
            $outputs['array_objects'] = '[{"foo":"foo","moo":"bar","camel_case":"boo"},{"foo":"baz","moo":"boo","camel_case":"boo"}]';
            $outputs['array_mixed'] = '["foo",1,true,{"foo":"foo","moo":"bar","camel_case":"boo"},[1,3,true]]';
            $outputs['blog_post'] = '{"title":"This is a nice title.","created_at":"2011-07-30T00:00:00+0000","is_published":false,"comments":[{"author":{"full_name":"Foo Bar"},"text":"foo"}],"comments2":[{"author":{"full_name":"Foo Bar"},"text":"foo"}],"metadata":{"foo":"bar"},"author":{"full_name":"Foo Bar"}}';
            $outputs['blog_post_unauthored'] = '{"title":"This is a nice title.","created_at":"2011-07-30T00:00:00+0000","is_published":false,"comments":[],"comments2":[],"metadata":{"foo":"bar"},"author":null}';
            $outputs['price'] = '{"price":3}';
            $outputs['currency_aware_price'] = '{"currency":"EUR","amount":2.34}';
            $outputs['order'] = '{"cost":{"price":12.34}}';
            $outputs['order_with_currency_aware_price'] = '{"cost":{"currency":"EUR","amount":1.23}}';
            $outputs['log'] = '{"author_list":[{"full_name":"Johannes Schmitt"},{"full_name":"John Doe"}],"comments":[{"author":{"full_name":"Foo Bar"},"text":"foo"},{"author":{"full_name":"Foo Bar"},"text":"bar"},{"author":{"full_name":"Foo Bar"},"text":"baz"}]}';
            $outputs['lifecycle_callbacks'] = '{"name":"Foo Bar"}';
            $outputs['form_errors'] = '["This is the form error","Another error"]';
            $outputs['nested_form_errors'] = '{"errors":["This is the form error"],"children":{"bar":{"errors":["Error of the child form"]}}}';
            $outputs['constraint_violation'] = '{"property_path":"foo","message":"Message of violation"}';
            $outputs['constraint_violation_list'] = '[{"property_path":"foo","message":"Message of violation"},{"property_path":"bar","message":"Message of another violation"}]';
            $outputs['article'] = '{"custom":"serialized"}';
            $outputs['orm_proxy'] = '{"foo":"foo","moo":"bar","camel_case":"proxy-boo"}';
            $outputs['custom_accessor'] = '{"comments":{"Foo":{"comments":[{"author":{"full_name":"Foo"},"text":"foo"},{"author":{"full_name":"Foo"},"text":"bar"}],"count":2}}}';
            $outputs['mixed_access_types'] = '{"id":1,"name":"Johannes","read_only_property":42}';
            $outputs['accessor_order_child'] = '{"c":"c","d":"d","a":"a","b":"b"}';
            $outputs['accessor_order_parent'] = '{"a":"a","b":"b"}';
            $outputs['inline'] = '{"c":"c","a":"a","b":"b","d":"d"}';
            $outputs['groups_all'] = '{"foo":"foo","foobar":"foobar","bar":"bar","none":"none"}';
            $outputs['groups_foo'] = '{"foo":"foo","foobar":"foobar"}';
            $outputs['groups_foobar'] = '{"foo":"foo","foobar":"foobar","bar":"bar"}';
            $outputs['groups_default'] = '{"bar":"bar","none":"none"}';
            $outputs['virtual_properties'] = '{"exist_field":"value","virtual_value":"value","test":"other-name"}';
            $outputs['virtual_properties_low'] = '{"low":1}';
            $outputs['virtual_properties_high'] = '{"high":8}';
            $outputs['virtual_properties_all'] = '{"low":1,"high":8}';
            $outputs['nullable'] = '{"foo":"bar","baz":null}';
            $outputs['null'] = 'null';
            $outputs['simple_object_nullable'] = '{"foo":"foo","moo":"bar","camel_case":"boo","null_property":null}';
            $outputs['input'] = '{"attributes":{"type":"text","name":"firstname","value":"Adrien"}}';
            $outputs['hash_empty'] = '{"hash":{}}';
            $outputs['object_when_null'] = '{"text":"foo"}';
            $outputs['object_when_null_and_serialized'] = '{"author":null,"text":"foo"}';
            $outputs['date_time'] = '"2011-08-30T00:00:00+0000"';
            $outputs['date_interval'] = '"PT45M"';
            $outputs['car'] = '{"km":5,"type":"car"}';
            $outputs['car_without_type'] = '{"km":5}';
        }

        if (!isset($outputs[$key])) {
            throw new RuntimeException(sprintf('The key "%s" is not supported.', $key));
        }

        return $outputs[$key];
    }

    public function testAddLinksToOutput()
    {
        $this->dispatcher->addSubscriber(new LinkAddingSubscriber());
        $this->handlerRegistry->registerHandler(GraphNavigator::DIRECTION_SERIALIZATION, 'JMS\Serializer\Tests\Fixtures\AuthorList', 'json',
            function(VisitorInterface $visitor, AuthorList $data, array $type, Context $context) {
                return $visitor->visitArray(iterator_to_array($data), $type, $context);
            }
        );

        $list = new AuthorList();
        $list->add(new Author('foo'));
        $list->add(new Author('bar'));

        $this->assertEquals('[{"full_name":"foo","_links":{"details":"http:\/\/foo.bar\/details\/foo","comments":"http:\/\/foo.bar\/details\/foo\/comments"}},{"full_name":"bar","_links":{"details":"http:\/\/foo.bar\/details\/bar","comments":"http:\/\/foo.bar\/details\/bar\/comments"}}]', $this->serialize($list));
    }

    public function getPrimitiveTypes()
    {
        return array(
            array(
                'type' => 'boolean',
                'data' => true,
            ),
            array(
                'type' => 'boolean',
                'data' => 1,
            ),
            array(
                'type' => 'integer',
                'data' => 123,
            ),
            array(
                'type' => 'integer',
                'data' => "123",
            ),
            array(
                'type' => 'string',
                'data' => "hello",
            ),
            array(
                'type' => 'string',
                'data' => 123,
            ),
            array(
                'type' => 'double',
                'data' => 0.1234,
            ),
            array(
                'type' => 'double',
                'data' => "0.1234",
            ),
        );
    }

    /**
     * @dataProvider getPrimitiveTypes
     */
    public function testPrimitiveTypes($primitiveType, $data)
    {
        $visitor = $this->serializationVisitors->get('json')->get();
        $functionToCall = 'visit' . ucfirst($primitiveType);
        $result = $visitor->$functionToCall($data, array(), $this->getMock('JMS\Serializer\Context'));
        if ($primitiveType == 'double') {
            $primitiveType = 'float';
        }
        $this->assertInternalType($primitiveType, $result);
    }

    /**
     * @group empty-object
     */
    public function testSerializeEmptyObject()
    {
        $this->assertEquals('{}', $this->serialize(new Author(null)));
    }

    protected function getFormat()
    {
        return 'json';
    }
}

class LinkAddingSubscriber implements EventSubscriberInterface
{
    public function onPostSerialize(Event $event)
    {
        $author = $event->getObject();

        $event->getVisitor()->addData('_links', array(
            'details' => 'http://foo.bar/details/'.$author->getName(),
            'comments' => 'http://foo.bar/details/'.$author->getName().'/comments',
        ));
    }

    public static function getSubscribedEvents()
    {
        return array(
            array('event' => 'serializer.post_serialize', 'method' => 'onPostSerialize', 'format' => 'json', 'class' => 'JMS\Serializer\Tests\Fixtures\Author'),
        );
    }
}